Digital Media

TRAINING MANUALDVD PLAYERS

DVD Player Training 2

DVD Player Training 3 Table of Contents

Using This Manual 4Trademarks 4Section I General Information 5IntroductionOptical Media Concepts 6Handling of Discs 7DVD Player ControlsFront Buttons 8Remote Control 8Display Window 9DVD Player SetupInstallationConnection Panel 10Video Connection 10Audio Connection 11Menu SettingsLanguage Menu 12Display Menu 12Audio Menu 14Lock Menu 15Others Menu 15System Information 17DVD Player OperationDVD-Related Terms 18Playable Discs 22Region Codes 24Copyrights 25Copy Protection 26Display Menu 28Playback Operation 29DVD Disc / Video CD 30Typical DVD Menu 32Audio CD / MP3 33JPG Disc 34Memory Cards 34DVD Player Maintance 35Operation Troubleshooting 36

Section II Technical Information 39Safety NotesProduct Safety Guidelines 40Servicing Precautions 42Loading Mechanism 43Disassembly 45Block Diagram 48DVD Player Operation Flowchart 52Technical Troubleshooting 53Updating Firmware 55

Section III Interactions 57Closed Captions and Subtitles58Aspect Ratios and Aspect Ratio Correction 58ArtifactsEdge Enhancement 60Macroblocking 60Up-Conversion DVD Players 61

Appendix 63Model Number Coding 64DVD Packaging 66Reporting Problems 67Setup Menu Flowchart 68DVD-Video Controls 69Video CD Controls 70Audio Disc Controls 71Features by Model 73

Table of Contents

DVD Player Training 4

Copyright 2006 LG Electronics Alabama Inc.

Using this Manual

Not all functions are available or operate in the same manner on all LG Zenith DVD Products.Consult the appropriate Owners Manual for specific operations of each model. As newer models aredeveloped, more features are included. Similarly, older models will not include as many features.

TIPS indicate tips and hint for making tasks easier.

NOTES indicate special notes and operating features to be aware of.

There may be several terms used within this manual that are used interchangeably. These mayinclude but, are not limited to:

DVD Player, LG Zenith DVD Player, unitLaser, CDM, Optical PickupDVD, disc, DVD-Video, DVD TitleDVD Movie, Feature, Main Feature, Main TitleRemote Control, Remote, R/CButtons, KeysMenu, On-Screen Display, OSD, Display

Trademarks

DivX and the DivX logo are registered trademarks of DivX, Inc. Dolby and Dolby Digital areregistered trademarks of Dolby Laboratories. The term DTS is a trademark of DTS Technology, LLC. TheDVD logo is a trademark of DVD Format/Logo Licensing Corporation. The DVI logo is trademark of theDigital Display Working Group. HDMI, the HDMI logo and High-Definition Multimedia Interface aretrademarks or registered trademarks of HDMI Licensing LLC. Macrovision is a registered trademark ofMacrovision Corporation. Windows Media, HDCD, and High Definition Compatible Digital are registeredtrademarks of Microsoft Corporation. The Super Audio CD logo, DVD+R/+RW logos, the MPEG logo, I2C,the wording Compact Disc, the acronym CD, and CD logos are the trademark of Koninkliijke PhilipsElectronics N.V. Spatializer N-2-2 is the Trademark of Spatializer Audio Laboratories Inc. All othertrademarks and logos are property of their respective owners.

General Information 5 Contents

SECTION I General Information

IntroductionOptical Media ConceptsHandling of Discs

DVD Player SetupDVD Player ControlsFront ButtonsRemote ControlDisplay Window

InstallationConnection PanelVideo ConnectionAudio Connection

Menu SettingsLanguage MenuDisplay MenuAudio MenuLock MenuOthers MenuSystem Information

DVD Player OperationTechnology and Disc-Related TermsPlayable DiscsRegion Codes

Regional Playback Control (RPC)Regional Coding Enhancement (RCE)

Copyrights and Copy ProtectionMacrovision ACPCopy Generation Management System (CGMS)Content Scramble System (CSS)Content Protection for Prerecorded Media (CPPM)Content Protection for Recordable Media (CPRM)Digital Copy Protection System (DCPS)(5C)High-bandwidth Digital Content Protection (HDCP)

Display MenuPlayback Operation

DVD Disc / Video CDTypical DVD MenuAudio CD / MP3JPG DiscMemory Cards

DVD Player MaintanceOperation Troubleshooting

Optical MediaConcepts 6 General Information

INTRODUCTION

Optical Media Concepts

An Optical Disc is made up of layers of plastics and a layer of reflective aluminum. The metallic layerhas raised areas, creating high and low areas (pits and lands). The bumps reflect light differently than thelands. This difference provides the basis for binary coding. A Pickup Assembly of a DVD Player has twoparts designed for readying a disc, a Laser and an Optical Pickup. The laser creates a laser beam that isfocused through the plastic layers of a disc onto the metallic layer. The light is then reflected to the OpticalPickup, which is an opto-electric device. In an over-simplified explanation, when the laser reflects off of aland, it shines into the Optic Pickup, generating a 1, and when the laser is reflected off a bump, it isdeflected away from the Optic Pickup, generating a0.

DVD Disc will often have two layers of data. Agold layer is added with the aluminum layer. Thelaser is able to focus through the gold layer to readthe aluminum layer. Most commercial DVD moviesare constructed in this dual-layer format. The DVDPlayer will read the 1st layer (gold) from the inside ofthe disc, spiraling to the outside, then refocus andbegin reading the 2nd layer (aluminum) from theoutside in.

NOTE: The need for the laser to refocus and changedirections for a layer change will cause a slightpause during the playback of a movie. While this isunavoidable, disc creators are aware of this andnormally attempt to position the movie data on thedisc so that the pause is not very noticeable.

TIP: Since the laser must refocus in order to performthe layer change, dust or nicotine stains on the lenswill cause this process to take longer. Regular lenscleaning is needed on DVD Players more often thanon CD Players.

General Information 7 Handling & Storing of Discs

Handling and Storing Discs

Do not touch the playback side of the disc. Hold the disc by the edges so thatfingerprints do not get on the surface. Never stick paper or tape on the disc, as glueresidue could remain on the disc.

We also recommend that sticker labels are not used on discs. Labels can add to theoverall thickness of a disc, which would make the disc out of spec and causeundesirable results.

Thickness out of specification can cause the Clamping Mechanism to secure the discimproperly to the Spindle Motor, allowing the disc to spin at a lower rpm.

Thickness out of specification can cause vacuum loading DVD Players, such as the LDA-511

and KU-17WDVD, to have difficulties loading and ejecting discs. Labels can cause the disc to become unbalanced and not spin level, changing the focal

point of the laser.

Always store the disc in the original case, in which it was purchased, after each use. Do not leavediscs sitting on top of the DVD Player or other flat surface where they can easily become scratched.

Inspect discs before each use. Fingerprints or other foreign substances should be cleaned before loading into a DVD

Player. Scratches should be buffed out using a Disc Repair Device, found at most electronics and

media retailers. Cracked discs should never be loaded into a DVD Player. The centrifugal force applied upon

adisc in a DVD Player can be enough to cause a crack to expand. This can cause seriousdamage to the DVD Player itself. A crack on the inner ring of a disc can expand and cause

theClamp Mechanism to release. This action can literally cause a disc to shatter within theDVD Player.

When cleaning a disc, always wipe from the inside of the disctowards the outside edge in a straight line. Never clean the disc in a spiralmotion. Do not use strong solvents such as alcohol, benzene, thinner,commercial cleaners, or anti-static spray intended for older vinyl records, asthese may cloud and damage the disc.

Two common problems that can prevent a disc from being properlyread are scratches and foreign substances. When a disc is scratched, agroove is etched into the smooth surface of the readable side of the disc.This groove can create a prism effect and misdirect the laser light preventingit from reaching the Optical Pickup, or sometimes even direct the lighttowards the pickup when it should not. This will cause the DVD Player toread 0s when it should read 1s or 1s when it should read 0s.

The direction of a scratch on a disc will effect the severity of the errors read. A linear scratch, fromthe inside of the disc towards the outside, will have a lesser effect than a circular scratch. A linear scratchwill cause an error once or twice, depending on the width of the scratch, each rotation. This low number ofmisreads can often be compensated in the error correction. However, a circular scratch will cause multipleerrors throughout each rotation of the disc. This type of scratch is more severe since error correction will beunable to compensate for the large amount of misreads.

TIP: Some Optical Pickups may not misread data due to a scratch due to various internal designs of thepickup. Various positioning of the pickup can allow the misdirected laser light to still strike some pickups andnot others. This can be a reason why some customers may report that a scratched disc will play in one DVDPlayer, but not in another. Another problem with a disc could be a foreign substance, such as a fingerprint(oil from skin), glue, dust, etc., that diminishes the laser lights intensity as it is reflected towards the opticalpickup. As the light passes through the substance, a portion of the light will be filtered out. Then after the

DVD Player Controls 8 General Information

* UPCONVERSION, or sometimes labeled RESOLUTION, buttons are only available on Up-Converting models capable of high-

resolution video output.

The actual Remote Controls supplied will vary bymodel. The two most typical Remote Controls areshown. consult the Owners Manual of each DVDPlayer model for specific Remote Controls.

General Information 9 DVD Player Controls

A-B Repeat sequenceANGLE Selects a DVD camera angle if availableAUDIO Selects an audio language (DVD) or an audio channel (CD).AV Selects the TVs sourceCLEAR Removes a track number from the program list or a mark in MARKER SEARCHDISPLAY Accesses On-Screen displayDVD, VCR, CATV, TV Selects operational mode of remote controlFwd SKIP/SCAN ( ) Search forward* / go to next chapter or track.MENU Accesses menu on a DVD disc (Disc Menu)(/ / / ) Selects menu options.- Selects TV channels and controls TV volume.MARKER Marks any point during playbackOPEN/ CLOSE Opens and closes the disc tray.PAUSE / STEP ( ) Pauses playback temporarily/ press repeatedly for frame-by-frame playback.PLAY ( ) Starts playback.POWER Switches the DVD Player ON and OFF.PROGRAM Places a track on the program listRANDOM Plays tracks in random order.REPEAT Repeat chapter, track, title, all.Rev. SKIP/SCAN ( ) Search backward* / go to beginning of current chapter or track or to previous.RETURN / TV INPUT Removes the Setup menu, and selects AUX A/V TV input channel.SEARCH Displays MARKER SEARCH menuSELECT / ENTER Acknowledges menu selection.SETUP Accesses or removes Setup menu.SHUTTLE ring For variable-speed playback.SOUND / MUTE Selects 3D SURROUND during disc playback.-Turns off TV sound.STOP ( ) Stops playback.SUBTITLE Selects a subtitle languageTITLE Displays discs Title menu, if available.TV CH +/ Selects TVs channel.TV POWER Turns the TV on or off.TV VOL+/ Adjusts TVs volume.ZOOM Enlarges video image.0-9 number buttons Select numbered options in a menu

* Press and hold button for about two seconds.

Video Connections 10 General Information

Video Connections

Depending on your TV and other equipment, there are various ways you can connect a DVD Player.Each video connection has pre-determined resolutions available:

Connection Name Connection Type Resolutions Signal Type

Composite Video Yellow RCA Jack 480i only Y/C Video

S-Video DIN Jack 480i only Y Video & C Video

Component Video Green Red & Blue RCA Jacks 480i Y Video & C Video

480p, 720p1, 1080i1 High-Res. Video

DVI-D2 DVI-D or DVI-I Connector 480i3, 480p, 720p4, 1080i4 Digital High-Res Video

HDMI2 HDMI Connector 480i3, 480p, 720p4, 1080i4 Digital High-Res Video & Audio

When determining which Video connections to use, match the best input with the best output of the DVD

Player.1st Choice HDMI2

2nd Choice DVI2

3rd Choice Component (480p or higher)

4th Choice Component (480i)

5th Choice S-Video

6th Choice Composite Video

NOTE: If the TV you wish to connect to a DVD Player does not have at least Component Video Inputs(Yellow RCA Jack), you must purchase an RF Modulator. Due to Macrovision Copy Protection, you can notinput a DVD Player to a VCR.

1 720p and 1080i are only available with non-copy protected discs. If copy protection is present, 480p will be displayed.2 DVI and HDMI Outputs are only available on Up-Converting models.3 Not all TVs will accept 480i on DVI or HDMI connections. Check the documentation of the TV.4 720p and 1080i are only available if the TV is HDCP Capable. Check the documentation of the TV. If the TV is not HDCP Capable,480p will be displayed.

Connection Panel

General Information 11 Audio Connections

Audio ConnectionsAll the previously mentioned connections, except for HDMI, contain Video only. Therefore, you must

also make audio connections from the DVD Player to hear any sound. The type of audio connection to usedepends on what type of device will be used to produce audio in your system. If the DVD Player is beingconnected to only a TV and no other equipment for sound, then the Analog Audio outputs (Red and WhiteRCA Jacks) will be used. If the DVD Player is being connected to a newer Dolby Digital compatible TV, theDigital Audio outputs might be usable. Check the documentation of the TV to determine the capabilities ofthe set.

If the DVD Player will be connected to an Audio / Video (A/V) Receiver or Amplifier, then there are threeavailable audio outputs.

1st Choice Optical Digital Out Single Fiber Optic Cable Capable of PCM, Dolby Digital, DTS

2nd Choice Coaxial Digital Out Single RCA Cable (Usually Orange) Capable of PCM, Dolby Digital, DTS

3rd Choice Analog Audio Out Dual RCA Cables (Red and White) Capable of PCM

Many A/V Receivers have both Optical and Coaxial Digital Audio Inputs. Technically speaking, itdoes not matter which of the two you use as they both carry the same signal. However, each type has itsadvantages and disadvantages. Coaxial Digital Audio uses a simple, inexpensive RCA Cable. However, ifthere is a large amount of cabling near the RCA Cable, or a long length of cable is used, signal loss and/orinterference can occur. Conversely, an Optical Digital Audio connection uses light to transmit a signal andtherefore is not subject to signal loss or interference. However, the fiber optic cable needed will be morecostly.

NOTES About HDMIWhile HDMI technology has the ability to carry uncompressed high-resolution digital video as well as

digital audio, various chipsets used have limited abilities. Early HDMI chipsets (1.0) were only capable oftransmitting 2ch PCM audio. Newer HDMI (1.1) chipsets can transmit multi-channel (surround sound) audio.What this means to customers using early generations of HDMI devices is that while high-resolution videocan be sent to a TV using HDMI, only 2ch audio can be transmitted on the HDMI cable. For these users toexperience multi-channel sound, a separate digital audio connection (Optical or Coaxial) must be used.

LGDVB418 HDMI 1.0 Chipset PCM Audio only, on HDMI Connection

LDX-514 HDMI 1.0 Chipset PCM Audio only, on HDMI Connection

LDA-511 HDMI 1.1 Chipset Dolby & DTS Audio on HDMI Connection

Keep in mind that while HDMI connections can transmit audio, DVI connections are video only. Eventhough HDMI and DVI are compatible with each other using either an adaptor plug or cable, audio signalswill not pass through DVI connections. Therefore, a HDMI source is connected to a DVI device, aseparate audio connection must also be made.

Setup Menu 12 General Information

Setup Menu

The Setup Menu is accessed by pressing the SETUP button on the Remote Control. Pressing theMENU button on the Remote Control will access the menu of the DVD title inserted, not the DVD Playersmenu.

Language Menu

The Language Menu is used to establish thelanguages used with the DVD Player. The MenuLanguage option selects the language of all On-Screen Menus of the DVD Player. Selecting alanguage other than English will change all of theDVD Players menus to another language.

Example of Use:English selected Menu

LanguageEspanol selected Idioma del

MenuFranCais selected Langage Menu

The Disc Audio, Disc Subtitle, and Disc Menu options are to change the default languages of DVD discinserted into the player. Any languages selected within these options must be present on the disc, otherwisethe discs default language will be used.Display Menu

The Display Menu allows you to adjust the DVDPlayer to accommodate the TV it is connected to.This menu is simply to tell the DVD Player whattype/shape TV is connected.

TV AspectSelect 4:3 if a 4:3 (Square) TV is connectedSelect 16:9 if a 16:9 (Widescreen) TV isconnected

Display ModeSelect Letterbox if 4:3 is selected for TVAspect and you wish to view widescreen movieswith barson the top and bottom of the image, without anystretching.

Select Panscan if 4:3 is selected for TV Aspect and you wish to view widescreen movies filling theentire screen, however, images will be stretched inorder to do so.

General Information 13 Setup Menu

Progressive Scan Select On if the DVD Player is connected to a TV that can accept a 480presolution

video signal.Select Off if the DVD Player is connected to a TV that cannot accept a 480presolution video signal, or you do not wish to output progressive scan video.

NOTE: The progressive scan menu option is not used on Up-converting Models. Instead, 480p, 720p, or1080i can be selected using the up-conversion feature.

TIP: When the Progressive Scan feature is turned on, the Composite Video (Yellow RCA Jack) and S-Videooutputs are no longer active. Only the Component Video Outputs will be active.

TIP: If the Progressive Scan feature is turned on and the connected TV does not accept a 480p signal,either scrambled or no video will be displayed. In this case, if you are unable to view the Setup Menu inorder to turn Progressive Scan OFF, make sure no disc is in the DVD Player and hold the STOP button for

about 5 seconds. This procedure will automaticallyswitch the Progressive Scan option to OFF.

NOTE: The Display Mode settings do not apply ifthe TV Aspect is set to 16:9. Therefore, when TVAspect is set to 16:9, the Display Mode sub-menuis not selectable and grayed-out.

Setup Menu 14 General Information

Audio Menu

The Audio Menu allows you to set the DVD Players audio outputs to match the features of theequipment it is connected to, as well as other sound options.

Dolby Digital, DTS, and MPEG settings areeither turned ON or OFFf, according to the abilitiesof the A/V Receiver, Amplifier, or in some cases,newer TV that the DVD Player is connected to. Ifthe connected device has the ability to decodeDolby Digital, DTS, and/or MPEG (check thedocumentation supplied with the device, or logo onthe unit), then set the compatible features to ON, orBitstream. If the connected device cannot decodethese signals, then the menu option should be setto OFF, or PCM.

In the Bitstream settings, the DVD Player will extract the selected audio signal from the DVD discand pass it onto the connected device via either Digital Audio Output. The PCM mode will allow the DVDPlayer to decode the multi-channel audio signal into a 2-channel signal, suitable for TVs and older ProLogic audio equipment.

DRC (Dynamic Range Control) is a feature of the DVD Player to control the audio levels of movies.DVD movies typically have a broad dynamic range. This means that the difference between the lowest audiolevel and loudest audio level is great. This is designed to provide a more lifelike movie experience since thevolume control must be turned up loud enough to hear the quiet parts of a movie, allowing the louder partsto give more realism. However, in some cases, this broad dynamic range is not desired, such as in adormitory, nursing home, or late at night when you do not want to disturb others. By turning the DRC featureON, the DVD Player will raise the level of quiet sounds and lower the level of loud sounds, resulting in anarrow dynamic range closer to that of normal TV watching. For normal DVD viewing, to receive the bestsound experience, this feature should be OFF.

Vocal is a setting that applies to Karaoke DVDs. When this setting is ON, the voice portion of aKaraoke disc is mixed into the rest of the audio. With this feature OFF, no voices will be heard, allowing theuser to supply vocals.

General Information 15 Setup Menu

Lock MenuThe Lock Menu is used to set Parental Controls in order to restrict certain aspects from viewing by

children. Unlike V-Chip Parental Controls used in Television broadcasts, DVD Parental Controls are on anumber scale 1 -8. The lower the Rating number, the more restrictions are put into place. Likewise, thehigher the Rating number, the fewer restrictions are used. On most DVD movies, scenes are assigned arating number. If the rating number of the scene is the same as or lower than the Rating number set in theDVD Player, the scene is played.

If the rating number of the scene is higher than the rating number set in the DVD Player, the scenewill not be played. In this case, there are two options for the DVD Player. Some DVD movies will havealternate, less graphic or offensive scenes, in which case the DVD Player will play the alternate scene. Insome cases, only the dialog of the movie would be graphic or offensive, in which case the DVD Playerwould mute the audio temporarily to not allow the offensive word(s) to be heard. If there are no alternatescenes on the DVD movie, the DVD Player will stop playback.

NOTE: In most cases, the beginning of a DVD movie will dictate the rating number for the entire movie andbegin restrictions placed at that point. Therefore, it is rare that the DVD Player will stop playback during amovie because of Parental controls.

The Password option is used to allow access to the Parental Control settings and to allow theratings to be temporarily released. Once the userhas set a password (4 digit number) and confirmedthe password, the settings can only be changedonce the correct password is entered. If a DVDMovie has been loaded into the DVD Player thatfalls within the set restrictions, the password mustbe entered before the movie will be played.

TIP: If the password has been forgotten by theowner, it may be cleared and reset. In order to clearthe password, navigate to the Password option andenter 210499 into the 4-digit field normally usedfor the password. This longer password, as well asthe specified numbers, will cause the DVD Player toerase the stored password and allow the entry of anew password.

The Country Code (Area Code in some models) tells the DVD Player what rating codes are to beused. DVD Movies created in other countries may have been developed using a different rating code thanmost U.S. titles. In this case, change the Country/Area Code to match the codes used on the disc.

Others MenuThe Others Menu is used for settings that do not fall within the previous classifications.

The Auto Play option will allow the DVDPlayer to skip the previews and menus of a DVDMovie and begin playing the movie right away. Themanner in which this feature works is that when aDVD is loaded, the DVD Player will automaticallybegin playing the largest file on the disc. In mostcases, this will be the movie itself. However, keepin mind that discs such as TV series (ALIAS, CSI,etc) that have multiple episodes, the largest filemay not be the first file on the disc. In this particularcase, it would be best to have the Auto Play featureturned off for TV series DVDs.

Setup Menu 16 General Information

NOTE: The Auto Play function may not work with some DVD Movies. Since DVD titles contain playbackinstruction for the DVD Player, there are some titles that do not interact with the Auto Play function. If theDVD Player locks up when a certain disc in inserted, remove the disc and then check the Auto Play settingin the Setup Menu. If Auto Play is ON, turn the function OFF and retry the disc. The DVD movies that exhibitthe behavior are the same disc that will not allow the user to advance past the previews shown before thedisc menu loads.

The B.L.E. (Black Level Expansion) feature can be used to control the black level of the videooutput. Standard gray scale for displays has a 7.5 IRE cut off, or limited to black levels of 15-255. Thismeans that the darkest aspect of an image will still produce a very small amount of light, and appears as avery dark gray. An expanded gray scale has a 0 IRE cut off, or a black level range of 0-255. This means thata zero light producing portion of the picture can be achieved. Black is usually considered to be 7.5 IRE (15/255). Anything below this level is considered blacker-than-black. If the display connected to the DVDPlayer can represent these lower levels of black, turn the B.L.E. feature ON. In this case, more detail can beseen in dark and shadow portion of the image. If the connected display is unable to use the expanded grayscale, the B.L.E. feature should be OFF.

TIP: If a TV cannot reproduce expanded black levels, either an error message will be displayed or nordifference in picture quality will be seen.

NOTE: B.L.E. is only available when the DVD Players output resolution is set to 480i or 480p. Up-converting models will disable this feature if set to 720p or 1080i (which inherently have an expanded grayscale).

DivX VOD (Video On Demand) is a feature on some DVD Players which allows the user todownload movies from the internet and view the movies on the DVD Player. This menu item is not aselectable feature. The DivX VOD menu item displays the DVD Players DivX Certified Activation Codeneeded in order to create an account with the DivX VOD service. For more information, visit www.divx.com/vod.

The PBC (PlayBack Control) function applies to, and can be found on, DVD Players that can playVideoCDs. PBC is a set of instructions that can be found on some commercially produced VideoCDs similarto DVD control. When the PBC option is ON, and a VideoCD containing PBC is inserted, the playback isperformed according to the PBC. When the option is OFF, or a VideoCD does not contain PBC, the disc isplayed straight through, much like an audio CD.

General Information 17 System Information

LG Zenith DVD Players have a secret menu to display the System Information of the unit. To access thismenu:

1. Remove any disc that may be in the DVD Player2. Press the SETUP button on the RemoteControl3. Select the Display Menu4. Select TV Aspect5. Highlight 16:96. Enter the following numbers, 1 3 9 7 1 3 9 and7. Press ENTER

The System Information screen provides many details about the DVD Player.

MODEL Provides the Factory Model Number of the DVD Player

REGION NO Displays the Region Code that the DVD Player is set to. U.S. models should be 1.If set to any number other than 1, such as 0, the unit has most likely been tampered with viahacking.

CHIP ID Displays the Chipset of the DVD Player. This is a hardware setting and not of muchservice or troubleshooting use.

SERVO VER Displays the CDM control version.

MICOM VER Displays the Firmware Version of the DVD Player. This is important introubleshooting

to determine if the DVD Player is operating with the latest Firmware. Anytime a problem is being reported to LGs Engineering Department, the MICOM Version must be reported.

PROM OPTION Displays special EEPROM options that have been set on the DVD Player suchas Region Coding, Brand, Special Functions, etc. These items are controlled by the Firmware andare not to be altered.

Factory Reset Entering and Exiting the System Information Screen triggers a Factory Reset onthe DVD Player. This is sometimes needed in order to reboot the DVD Player to operate undernew Firmware.

DVD-Related Terms 18 General Information

DVD-Related Terms

3D Surround Sound See Spatializer

Audio CDs, officially called Compact Disc Digital Audio, are the original compact disc standarddeveloped in 1980 by Philips and Sony as an audio-only format. The officially designation for CD-

DA is the Red Book Standard. CD+, or CD-Extra is a multi-session format allowing computer data (-XA) andaudio (-DA) to be present on the same compact disc while allowing normal CD Players to play the audio.The official designation for CD-Extra is the Blue Book Standard.

Video CDs are compact discs based on the CD-XA standard using MPEG1 compression to allowvideo playback from a CD. Video CDs are not a robust as DVD Videos. Video CD quality is about

1/5 that of DVD and typically only 320 x 240 resolution. Video CD also is limited to 2-channel audio.However, with the same file size for Video CD, full length movies can fit onto a single compact disc.

CHAPTER A chapter is a segment of a title, such as a scene in a film or one interview in a series. Eachchapter is assigned a chapter number, enabling you to locate the chapter you want. Depending on the disc,chapters may not be recorded.

Codec is a term combining the words Compressor-Decompressor or Coder-Decoder. Video and Audiosignals are naturally analog. In order to transport them digitally, a Codec scheme must be used. A Codec willconvert analog video signals, analog audio signals, and metadata (permits synchronization of audio andvideo) signals to a digital transport stream and then convert the signal back to analog of use within a device.In the simplest of terms, think of a particular Codec as a key to unlock the analog video and audio signals ina digital stream.

DivX is the name of a revolutionary new video codec which is based on the new MPEG-4compression standard for video. Like the Video CDs, DivX allows a full length movie to fit onto a

single compact disc, but with less quality loss than Video CD. For example, the DivX codec can compressan MPEG-2/DVD file to nearly one-tenth its original size or a home movie (DV) 25:1.

Dolby Digital is the trademarked marketing name for Dolby Laboratories lossy AC-3 codec.The common version contains 5.1 channels (five primary speakers and an LFE channel), but

the format supports Mono and Stereo usages as well. Dolby Digital audio is included in the DVD Standard.

Dolby Pro Logic II is the trademarked marketing name for Dolby Laboratories system ofdecoding 2ch audio into 5ch surround sound.

DTS (Digital Theater Systems) is a multi-channel surround sound format used for consumergrade applications. It is used for in-movie sound both on film and on DVD, and during the last

few years of the formats existence, several DVD releases had DTS soundtracks. The basic and mostcommon version of the format is a 5.1 channel system, supporting five primary speakers and a subwoofer.Other newer DTS variants are also currently available, including versions that support up to 7 primary audiochannels (DTS-ES). On the consumer level, DTS is the oft-used shorthand for the DTS Coherent Acousticscodec, transportable through S/PDIF and used on DVDs, CDDAs and in wave files. This system is theconsumer version of the DTS standard.

DTS 96/24DTS 96/24 offers an unprecedented level of audio quality for multi-channel sound on DVD-

Video, and is fully backward-compatible with all DTS decoders. 96 refers to a 96kHz sampling rate(compared to typical 48kHz sampling rate.) 24 refers to 24-bit word length. Hardware logo usage - DTS 5.1and DTS 96/24 decoding inside DVD Disc logo usage - The disc is encoded with DTS 96/24 and is playablein 96/24 with any DTS 96/24-equipped hardware. Fully compatible with DTS-capable 5.1 hardware, andbackward-compatible (at 48/24) to all DTS-equipped hardware.

General Information 19 DVD-Related Terms

DTS Digital OutDTS Digital Out indicates that a unit reads and passes the DTS bitstream via the devicesdigital output to a device equipped with a DTS decoder. This is a necessary feature for

playback of a DTS soundtrack through a DTS-capable decoding receiver or preamplifier equipped withdigital inputs. Hardware logo usage - DTS bitstream pass-through is necessary for playback of DTSsoundtrack through a DTS-capable system. DVD Disc logo usage - NOT APPLICABLE

DTS Digital SurroundDTS Digital Surround is a standard for providing 5.1 channels of discrete digital audio inconsumer electronics products and software content. Hardware logo usage - DTS 5.1

decoding inside. DVD disc logo usage - The disc contains a DTS 5.1 soundtrack.

DTS-ESDTS-ES is capable of delivering 6.1 channels of discrete audio in consumer electronics.

DTS-ES is also fully backwards-compatible with DTS decoders that are not Extended Surround equipped.Hardware logo usage - DTS 6.1 Matrix and DTS 6.1 Discrete decoding inside. Fully compatible with DTS 5.1software. DVD Disc logo usage - This disc contains a DTS 6.1 Matrix and/or DTS 6.1 Discrete soundtrack.Fully compatible with DTS-capable 5.1 hardware.

DTS Neo:6DTS Neo:6 provides up to six channels of matrix decoding from 2 channel stereo matrix

material. Hardware logo usage - DTS Neo:6 is available in all DTS-ES-equipped receivers. DVD Disc logousage - NOT APPLICABLE

Digital Video (DV) is a video format launched, and, in its smaller tape form factor MiniDV, hassince become one of the standards for consumer and semiprofessional video production. The DV

specification defines both the codec and the tape format.

DVD Audio is a new disc format building on the success of DVD to provide high quality,uncompressed, multi-channel audio for a new experience in audio quality. A DVD Audio disc

can be identified by the DVD audio logo on the disc jacket or on the disc itself. DVD Audio can providehigher quality stereo than Audio CDs with a sampling rate of up to 192kHz(compared to 44.1kHz for CDs).DVD Audio digital sound can be delivered with up to 24 bits of data(compared to 16 bits for a standard CD).A typical DVD Audio disc contains up to seven times the data capacity of a CD. This additional space is usedfor music, either Advanced Resolution multi-channel sound quality that is closer to the artists masterrecording or for longer recordings. Many DVD Audio discs contain on-screen text, such as artist biographies,playlists, or lyrics. Some DVD Audio discs contain photo galleries or video clips.

DVD-Recordable or DVD-R is a recordable version of the DVD standard. A DVD-R can bewritten to only once, whereas a DVD-RW (DVD-rewritable) can be rewritten multiple times.

DVD-R is supported by most DVD players, and is approved by the DVD Forum. When a DVD-R disc isformatted for video, not data, it is in the DVD-Video format.

DVD+R is a competing recordable DVD format to DVD-R. Like DVD-R, DVD+R is a record oncemedium. DVD+R is not supported by the DVD Forum and therefore supported by the DVD+RWAlliance.

DVD-Rewritable or DVD-RW is a recordable version of the DVD standard. Unlike DVD-R whichcan only be written to once, DVD-RW can be written to and erased, allowing rewriting. DVD-RW is supported by most DVD players, and is approved by te DVD Forum. When a DVD-RW is

formatted for video, not data, it can be created in one of two formats, DVD-Video and VR Mode. VR Modeallows for editing on the DVD-RW disc.

DVD-Related Terms 20 General Information

DVD+RW is a competing rewritable DVD format to DVD-RW. Like DVD-RW, DVD+RW is arecord and erase medium. DVD+RW is not supported by the DVD Forum and therefore only

supported by the DVD+RW Alliance.

DVD Video is a disc format of DVD. DVD Video discs can include over two hours of MPEG2compressed video and 720 x 480 resolution (for NTSC), up to eight audio tracks (for multiple

languages, alternate/additional audio such as commentaries, etc), up to 32 various subtitles, and up to 9camera angles.

Digital Visual Interface (DVI) is a video connector designed to maximize the visual quality ofdigital display devices developed by the Digital Display Working Group (DDWG). A DVI

connection transmits a digital video signal capable of high resolutions.

GROUP (DVD-Audio) The main audio content or accompanying feature content or additional featurecontent, or music album. Each group is assigned a group reference number enabling it to be located more

easily.

High Definition Compatible Digital is an enhancement to regular audio CDs to increase thedynamic range, resulting in better and more natural reproduction of music (both vocals and instrumentaltimbre). The additional dynamic range allows more low-level details to be captured in the digital recording.Regular audio CDs are based on 16-bit data word length, while those enhanced with HDCD have beenencoded with effectively 20-bit data word length. Longer data word lengths provide more resolution in whichto capture the nuances of intricate musical passages. The HDCD enhancement algorithm is invented andlicensed by Pacific Microsonics. HDCD enhanced CDs are backwards compatible with non-HDCD

enhanced playback equipment (you simply hear the quality of regular audio CD).

HDMI (High Definition Multimedia Interface) is a newer version DVI which also supportsaudio transmission as well as video on a single cable.

JPEG (jay peg) or JPG files are compressed photographic images.

Kodak Picture CDs are CD-ROM discs created from photographic film containing JPG files.

MP3 is a digital audio encoding format designed to greatly reduce the amount of datarequired to provide a faithful reproduction of music. In popular usage, the term MP3 refers to audio filesstored in the MP3 audio format. The compression of the MP3 format is achieved by discarding portions ofthe audio that are considered less important to human hearing.

MPEG MPEG is an international standard for video and audio compression. MPEG-1 is used in encodingvideo for VCD. MPEG as an audio option on DVD players refers to MPEG audio streams available on some

European DVD titles.

Progressive Scan refers to the type a picture scanning performed within a TV. Images areeither interlaced (i), where the odd numbered lines of picture information are displayed and then the evennumbered lines, or progressive (p), where all lines of picture information are displayed in order. The use ofProgressive Scan in regards to a DVD Player deals with the output resolution settings. If the progressivescan feature is turned OFF, then the DVD Player will output 480i to all of the video outputs. If the progressivescan feature is turned ON, then the DVD Player will output 480p to all of the outputs that support higherresolutions (Component, DVI, HDMI).

General Information 21 DVD-Related Terms

A DVD Player displaying the RW Compatible logo signifies that the DVD Player is capable torecognizing and playing a DVD-RW disc that has been recorded in VR Mode.

Screen Saver If a DVD product is left in STOP mode for 5 minutes, the unit will automatically enter a ScreenSaver mode with a logo moving about the display. If a DVD Product is in Screen Saver mode for 5 minutes,the unit will power off.

Spatializer N-2-2 and 3D Surround Sound are processes that allow users to experience a virtual surroundsound effect from only two conventional speakers or directly from stereo TV speakers.

TITLE A title is generally a distinct section of a DVD disc. For example, the main feature could be title 1, adocumentary describing how the film was made could be title 2, and cast interviews could be title 3. Eachtitle is assigned a reference number enabling it to be located easily.

TRACK A distinct element of audio/visual information, such as the picture or sound track for a specificlanguage (DVD), or a musical piece on a video or audio CD. Each track is assigned a track number enablingyou to locate the track you want.

Windows Media Audio is a compressed audio format developed by Microsoft as part of theWindows Media framework. WMA is generally considered a competitor to the MP3 audio formatand Apples AAC format.

XTS (Excellent True Sound) is sound enhancement unique to LG. There are three soundenhancement modes:XTS-1 will increase the low frequencies, providing a Bass Boost effect.

XTS-2 will duplicate the output of the front speakers to the surround speakers when in two channel bypassmode. (Note: XTS-2 is not available when in 5.1 modes)XTS-3 will perform both XTS-1 and XTS-2 operations at the same time.

Playable Discs 22 General Information

Playable Discs

The Owners Manual of each model DVD Player will list the types of discs that are playable in thatunit. Each model has different abilities which are typically increased with newer models. The various types ofplayable discs include:

DVD-Video All LG Zenith DVD Players are capable of playing standard 12cm DVD-Videodiscs. Many models can also accept the smaller 8cm DVD-Video discs as well. All LG Zenith DVD Playersmarketed and sold in the U.S. are capable of playing Region 1 coded discs.

DVD-Audio Some select LG Zenith DVD Players are capable of playing DVD-Audio discs totheir full ability. These DVD Players will possess the DVD-Audio or DVD-Video/Audio logo. Other DVDPlayers may still play a DVD-Audio disc; however, the full capabilities of the disc will not be experienced.

CD Digital Audio Most LG Zenith DVD players can also play Audio CDs. While DVD Players arefirst and foremost a playback device for DVDs, Audio CDs can be played. However, in some cases, there isa noticeable difference in the playback method of Audio CDs on a DVD Player and on an actual CD Player.While a CD Player will play an Audio CD seamlessly, a DVD Player will often create a slight pause betweenthe tracks of an Audio CD.

CD Digital Video Playback of a Video CD is generally limited to newer LG Zenith DVD Players. TheDVD Players are required to conform to the software and instructions included within the coding of DVD andVideo discs. Therefore, some features may not be accessible due to the formatting of the disc. In addition,DVDs and Video CDs created by consumers may sometimes not be playable due to the encoding andsettings used during the creation process. LG Zenith cannot be held responsible for compatibility of non-commercial discs.

DivX Files When a LG Zenith DVD Player possess the DivX Video label, it means two thingsin regards to the playback abilities of the unit. DVD Players with the DivX technology included have theability to play Video CDs. In addition to typical Video CDs, the DVD Player can play video files, stored oneither DVD or CD disc, with .avi, .mpg, or .mpeg file extensions. The DVD player will be preload with thefollowing codecs; DIVX3.xx, DIVX4.xx, DIVX5.xx, XVID, MP43 and 3IVX. As long as the video file wasencoded with one of these codecs, it will be playable in a DVD Player possessing the DivX logo.

Second, a DVD Player with the DivX logo can playback DivX Video On Demand files that aredownloaded through a subscription to the DivX service.

DivX disc compatibility with LG Zenith DVD Players is limited as follows: Video resolution must be under 720 x 576 The file name of the DivX Subtitle is limited to 56 characters If the file name has non-standard characters, _ may be displayed. The frame-rate must not exceed 30 fps If the audio and video are not interleaved, either video or audio will be outputted During the encoding process, the GMC level must be set to 1-point File extension

avi, mpg, mpeg Subtitle format

SubRip (.srt .txt), SAMI ( .smi), SubStation Alpha ( .ssa .txt),MicroDVD ( .sub .txt), SubViewer 2.0 ( .sub .txt), TMPlayer ( .txt),DVD Subtitle System ( .txt), VOBSub ( .sub) Sub/idx, stream based format

Codec formatDIVX3.xx, DIVX4.xx, DIVX5.xx,XVID, MP43, 3IVX

Audio FormatDolby Digital (AC-3), DTS, PCMMP3, WMASampling frequency

8 48KHz (MP3), 32 192kpbs (WMA)

General Information 23 Playable Discs

MP3 LG Zenith DVD Players that possess the MP3 logo are capable of playing MP3 audio filesstored on CD-R and CD-RW discs. Some models are also capable of playing MP3 files stored on DVDR/RW discs.

WMA Many LG Zenith DVD Players support playback of Windows Media files as well as MP3files.

MP3 and WMA disc compatibility with LG Zenith DVD players is limited as follows: Sampling Frequency

o 8 48KHz (MP3)o 22 48KHz (WMA) [32 48KHZ on some models]

Bit rateo 32 320kbps (MP3) [8 320kbps on some models]o 40 192kbps (WMA) [32 192kbps on some models]

File extensiono mp3o wma

CD-R file structure format must be ISO 9660 (Direct-CD or Drag-to-Disc, not supported) File names over 8 characters will not be displayed (beyond first 8 characters) File names may not contain non-standard characters ( / ? * : < > | etc) The total number of files on the disc support varies between models

JPEG Many LG Zenith DVD Players are capable of displaying JPEG photos stored on CD-R andCD-RW discs. Additionally, several DVD Players also support Kodak Picture Disc playback.

JPEG disc compatibility with LG Zenith DVD Players is limited as follows: Depending on the size and number of JPEG files, it may take a long time for the DVD Player

to read the disc contents. If you do not see an on-screen display after several minutes,some of the files may be too large. In this case, reduce the resolution of the JPEG images toless than 3760 x 3840 and create another disc.

File extension should be .jpg not .jpe or .jpeg The number of supported files on a disc varies between models (650 999)

DVDR/RW Not all DVD Players are able to play DVD Recordable media. LG Zenith DVD Playersrange in their DVD Recordable format playback support. Each models capabilities are listed in the OwnersManual. DVD Players can support playback of discs recorded in any, all, or none of the following formats;DVD-R, DVD-RW, DVD+R, and DVD+RW.

Region Codes 24 General Information

Regional Playback Control (RPC)

Region Codes were established into the DVD Standard, mainly in order to protect the copyrightinterests associated with movies, as well as to respect and adhere to each countrys respective laws andpolicies governing ratings, censorship, release windows, and rights for home video product. The globalmarket was divided into multiple regions. Each region is assigned a number. This Region Code is coded intoboth DVD discs and DVD Players. Before a DVD movie will display, the Region Code in both the Disc andthe Player must match.

In the simplest of terms, a DVD Movie sold in the U.S. will not play in a DVD Player in Europe,where the theatrical version of the movie could still be playing.

REGION 1 USA, Canada, US TerritoriesREGION 2 Europe, Japan, South Africa,the Middle East, GreenlandREGION 3 South Korea, Taiwan, HongKong, Most of South East AsiaREGION 4 Australia, New Zealand(Oceania), Latin America (Central andSouth America)REGION 5 Eastern Europe, Russia,Asia, India, AfricaREGION 6 ChinaREGION 7 Reserved for UnspecifiedSpecial UseREGION 8 Reserved for Cruise Ships,Airlines, etc...REGION 0 or REGION ALL Discs areun-coded and can be played Worldwide,

however, PAL discs must be played in a PAL-compatible unit and NTSC discs must be played in an NTSC-compatible unit.

LG Zenith DVD Players sold in the U.S. and Canada are designed to play DVD discs labeledRegion 1 or ALL (0). Any modification to a DVD Player to enable it to play a DVD disc with any otherRegion Code is prohibited and automatically voids the warranty.

NOTE: Some DVD discs may not have a region code label even though their playback is prohibited by arealimits.

RCE (Regional Coding Enhancement)

Shortly after the establishment of DVDs on themarket, certain people began to circumvent the RegionCode system and modify DVD Players to play allDVDs, regardless of Region Codes. The players areusually referred to as Region Free or Multi-RegionDVD Players. Any DVD Player that has been modified,either physically or via software, no longer conforms tothe DVD Standard and is void of any warranty. Mostoften, the manner in which DVD Players are modifiedto become Region Free is that the Region Codeembedded in the unit is changed to zero (0), meaningall regions. This initial method would allow most anyDVD disc to play within the unit since the most

General Information 25 Region Codes

common check for the disc was for the software (on the disc) to confirm that the DVD Player was either thesame Region Code on the disc, or 0 (ALL).

Some production studios have added additional coding to the software on DVD movies called RCE,or Regional coding Enhancement. In short, the RCE coding checks the Region Code setting on the DVDPlayer. If the Region Code of the player is 0, 2, 3, 4, 5, 6, 7, or 8, then the disc will not play and an errorscreen is displayed. If the DVD Players Region Code is 1, then the disc is playable (RCE is only used onRegion 1 DVDs).

NOTE: Due to the way that the software on some DVD Players establishes the Region Code, RCE encodedDVDs may displayed the error message even if the DVD Player has never been modified or hacked. Byentering the System Information screen, you can determine the Region Code that the DVD is set to. If theDVD Player is set to Region 1, report the problem, including all disc information and firmware version, to theEngineering Department.

It is forbidden by law to copy, broadcast, show, broadcast via cable, play in public, or rent (movierental firms purchase special licenses to permit renting materials) copyrighted material without permission.LG Zenith DVD Players incorporate various copy protection technologies designed to protect the copyrightinterests of content providers. Circumvention, reverse engineering, or disabling these copy protections is aviolation of the Digital Millennium Copyright Act of 1998.

Copy Protection 26 General Information

Macrovision ACP (Analog Content Protection)Macrovision ACP prevents or distorts copies of DVDs made over an analog interface to DVD

recorders, PCs, digital video recorders (like TiVo, ReplayTV and Media Center PCs), in addition to D-VHSrecorders (DVRs) and VCRs. ACP technology is activated when a rights owner instructs the authoring facilityto set Macrovision analog content protection control bits during the authoring process. The activation bitsinstruct an integrated circuit within the playback device to add ACP to the outgoing analog video. Thecontent protection is transparent when content is viewed, but prevents or substantially degrades copiesmade on DVD recorders, DVRs, PCs, Media Center PCs, D-VHS recorders and VCRs. The DVD applicationprocess for ACP and RipGuard DVD can be transparently combined at the replication facility, regardless ofthe type of manufacturing systems used. Macrovision ACP is also available for VHS. When MacrovisionACP is present and the DVD Players output is passed through a VCR, the resulting video may show asdistortion, rolling, black & white, color stripes, or light & dark cycling. Macrovision ACP affects only the video,not the audio.

Circumvention of the Macrovision technology is prohibited in the U.S. under the Digital MillenniumCopyright Act (DMCA).

CGMS (Copy Generation Management System)CGMS is additional copy protection system which contains greater control and options than

Macrovision ACP. With CGMS, content providers can govern the extent that their product is copied. WhileMacrovision restricts all copying of content, CGMS can prevent initial copies or generational copies. Forexample, HBO uses CGMS to allow consumers to record most programming (initial copied allowed).However, any On-Demand programming is restricted (initial copy restricted) . In addition, any of the copiedprogramming that was permitted with CGMS is restricted from being copied again (generational copyrestricted).

CSS (Content Scramble System)CSS is an encryption system present on some DVD movies that is intended to prevent making

perfect copies directly from DVD-Video discs. A CSS decryption key stored on the DVD Player must matchthe set of keys included on the disc. Once the keys are confirmed, the DVD Player decrypts the data beforeit is decoded and displayed. CSS rarely becomes an issue in dealing with DVD Players designed for homeuse. In fact, users will usually never know if a DVD movie has CSS or not, unless they are using a DVD-ROM drive in a PC.

General Information 27 Copy Protection

CPPM (Content Protection for Prerecorded Media)CPPM is a CSS-like system that is used only on DVD-Audio discs. A Hybrid DVD-Video/DVD-

Audio disc could contain both CSS and CPPM content.

CPRM (Content Protection for Recordable Media)CPRM is a system used in DVD Recorders. Similar to CSS, the CPRM system uses embedded keys

exchanged between the disc and player to decrypt content before playback is possible. In this case, thekeys are generated based on the serial number of the recordable disc being used. When CPRM is enabled(within the broadcast program being recorded), the resulting disc will only be playable on the DVD Recorderit was create on, or in some cases, a DVD player that supports CPRM.

DCPS (Digital Copy Protection System) or 5CDCPS (5C) is the copy protection system used for the IEEE 1394 interface between products. In

short, 5C creates a secure channel between two devices connected by IEEE 1394 to prevent any otherdevices connected from piggy-backing into the signal.

HDCP (High-bandwidth Digital Content Protection)HDCP is very similar in function to 5C but, is designed for DVI and HDMI connections. While HDCP

deals with high definition resolutions, it does not stand for the common misconception of High DefinitionCopy Protection. When a DVD Player and a Display Device that is HDCP Compliant are connected,authentication keys are exchanged to provide a secure connection. Once a secure connection isestablished, copy protected content can be transmitted from the DVD Player to the Display at highresolutions.

Macrovision ACP, CGMS (Copy Generation Management System), CSS (Content ScrambleSystem), and CPPM (Content Protection for Recordable Media) are all optional for the DVD disc creators. ADVD could include any, all, or none of these copy protection systems. CPRM (Content Protection forRecordable Media) is optional for broadcasters and is performed within DVD Recorders. 5C (DCPS) andHDCP are performed by DVD Players to secure their digital video outputs whenever copy protection ispresent on a DVD disc.

Display Menu 28 General Information

The Display Menu, accessed by pressing the DISPLAY button on the Remote Control during playback,shows the status of playback. You can also adjust and select certain options using the Display Menu.Depending on the type of disc being played, certain options may or may not be displayed or available.

Title (Group for DVD-Audio) The currently selected Title is displayed. Use the Left / Right Arrow buttons ornumber keys to change titles.

Chapter (Track for DVD-Audio) The currently selected Chapter is displayed. Use the Left / Right Arrowbuttons or number keys to change chapters. Chapters are not available for Video CD and DivX files.

Time The current playback time is displayed. You can perform a time search by entering the desires timespot to jump to by using the number keys and pressing ENTER.

Audio The currently selected Audio Language and Digital Audio Output mode are displayed. Use the Left /Right Arrow buttons or the AUDIO button to change the audio options.

Subtitle The currently selected Subtitle language is displayed. Use the Left / Right Arrow buttons orSUBTITLE button to change the subtitle selection. Subtitles are not available for Video CDs.

Angle The current video angle is displayed. When alternate camera angles are available, use the Left /Right Arrow buttons or the ANGLE button to select a different angle. Alternate angles are not available forVideo CD and DivX files.

Page (DVD-Audio only) The currently selected page, if applicable, of DVD-Audio video features, isdisplayed. Use the Left / Right Arrow buttons or the ANGLE button to select a different page.

Sound Mode The currently selected sound processing mode is displayed. Use the Left / Right Arrowbuttons to change modes, if applicable. Sound Mode is not available for DVD-Audio

Display Menu

General Information 29 Playback Operation

Power On

Press of Power ButtonPress of Open/Close ButtonPower Input from Remote Control

LoadOperatingSystem

Disc TrayOpen? Close Disc Tray

Sled at InnerPosition?

Yes

Move Sled to InnerPositionNo

Determine if aDisc is

present andwhat type

Yes

Has Open/Close beenpressed?

PerformPressed Keyoperation or

DiscInstructions

No

If any key has been pressed on either R/C or Buttons,perform that operation. (Play, Menu, Power, etc)If no keys have been pressed, perform operation asinstructed by disc. (Play Previews, Go to Menu, etc)

Stop PlaybackYes Open Disc TrayHas Open /Close beenpressed?

Yes

No

No

Last SceneMemory point is

saved

Splash Screenwill show on

Display Device

Splash Screen willshow on Display Device

w/ open message

HELLO will show onFront Display

Playback Flowchart

Playback Operation 30 General Information

Playback Operation

Playing a DVD or Video CD

The most basic and general method of playback of a DVD disc or Video CD is to insert the disc andallow any previews or other short titles to play and automatically enter the disc menu. Once the disc menu isdisplayed on the screen, select play movie. The DVD Player will play the disc according to the instructionsset forth by the disc. Once the feature has completed, the DVD Player will return to the disc menu.

Titles/GroupsIn most cases, especially DVD movies, this above mentioned basic method is all that is required.

However, on some DVD discs, such as video calibration discs, require the user to move from title to title. Inorder to change titles (or groups on a DVD-Audio disc) manually, press the display button on the RemoteControl and either input the desired title number with the number buttons or the Left / Right Arrow buttons.

Chapters/TracksThere are two methods in which you can change chapters. The first method is to simply use the

SKIP button/key to advance to the next chapter or the SKIP button/key to repeat the current chapter.A second press of the SKIP button/key will move back one chapter. The second method is to press thedisplay button on the Remote Control, select the chapter/track icon and either use the Left / Right Arrowbuttons to select the desired chapter or use the number buttons to directly access the desired chapter.

SearchYou may search either forward or backward during playback in two methods. The first method is by

using the Remote Control. Press the SCAN button to begin searching forward during playback. Eachtime you press the SCAN button the playback will speed up. To search backwards, press the SCAN button in the same manner. For DVDs, the increments will change from x2, x4, x16, and x100 with eachpress of the SCAN buttons. For Video CDs, the increments will change from x2, x4, and x8 in forward only,as reverse scan is not available. The Remote Control for some models features a jog-knob instead of SCANbuttons. Simply turn the knob in the direction you wish to search, the farther the knob is turned, the fasterthe search becomes. To exit search mode, simply press the PLAY button.

The second method is the same principle, except using the front key controls instead of the RemoteControl. The front key controls do not have separate SCAN buttons. Simply press and hold the SKIP or keys to begin searching.

Still Image, Frame Advance, & Slow MotionYou may freeze the playback by pressing the PAUSE button/key. Repeatedly pressing the PAUSE

button/key will advance the image one frame at a time.

NOTE: During playback of DVD discs that were created by a consumer on a DVD Recorder that usesvariable bit-rate encoding, the Frame Advance function may skip several frames when first initialized in orderto determine the bit-rate used.

While playback is paused, you may also slowly scan forwards and backwards (only forward withVideo CDs) by pressing the SCAN >> or > and

General Information 31 Playback Operation

DVD-Audio discs have Repeat Track and Repeat Group modes. Repeat Track will repeatedly playthe current Track. Repeat Group will repeatedly play the current Group. Pressing the REPEAT button willcycle between track, group, and off.

Video CDs have Repeat Track and Repeat All modes. Repeat Track will repeatedly play the currenttrack (video file). Repeat All is repeatedly play all the tracks available on the disc (entire discs). Pressing theREPEAT button will cycle between track, all, and off. In order for the Repeat function of operate on a VideoCD with PBC, the PBC selection in the Set-up Menu of the DVD Player must be set to OFF.

You may also specify a sequence to repeat. Press the A-B button on the Remote Control to specifythe beginning of the sequence to repeat. Once the playback reaches the end of the sequence you wish torepeat, press the A-B button again to set the end point. The playback will repeatedly play the sequenceyou have specified with A (begin) and B (end) points. To stop the A-B Sequence, press the A-B buttonagain.

Tip: Pressing the SKIP button/key while a Repeat function is in operation will cancel the repeating.

Time SearchYou may begin playback or skip playback to a specific time within the feature (movie). For example,

if you wish to go to at point 45 minutes into the feature press the DISPLAY button on the Remote Controland select the time icon. Input 4 5 0 0 and press the ENTER button and the playback will skip to 45minutes into the feature. If you make an error while inputting the time, simply press the CLEAR button.

ZoomDuring playback, or even still image, you may enlarge the picture using the Zoom function. Press

the ZOOM button on the Remote Control and the screen will enlarge. When the Zoom function is firstinitialized, a box will appear on the screen indicating which portion of the screen is enlarged. You may usethe Arrow buttons on the Remote Control to select different portions of the image to enlarge. After a shorttime, the display will disappear. Each press of the ZOOM button will change the screen size and toggle off.Check each models Owners Manual for the level of zoom available. Pressing the CLEAR button willreturn playback to normal.

NOTE: The Zoom Function may be disabled on some DVD discs.

Marker SearchYou can start or skip playback at up to nine memorized points. To enter a marker, press the

MARKER button on the Remote Control at the desired point on the disc. The Marker icon will appearbriefly on the screen. Repeat to enter up to nine markers. During playback press the SEARCH button onthe Remote Control to display the list of markers. Using the Left / right Arrow buttons, you may select any ofthe markers and press ENTER to jump to that point. Pressing the CLEAR button will remove the selectedmarker from the list.

Camera AngleSome DVD discs contain scenes recorded at different camera angles. When a DVD disc contains

alternate angles, the angle indictor will blink on the front display of the DVD Player, indicating that angleswitching is possible. Press the ANGLE button on the Remote Control to select an alternate camera angle.

Audio LanguageDVD movies may contain multiple audio tracks. Additional tracks may include alternate languages or

commentary dialog. Pressing the AUDIO button on the Remote Control will cycle through the availableaudio tracks on the disc.

SubtitlesTo select subtitles and/or subtitle languages available on the disc, press the SUBTITLE button on

the Remote Control.

Playback Operation 32 General Information

Most DVD movies contain a Disc Menu. This menu is part of the DVD itself and provides access to thefeature presentation, additional featurettes, special features, etc. The items included vary from disc to disc,typically including the following:

Play Movie Selecting this item will begin playback of the movie or main feature. Various DVD titles willhandle this feature differently but, they all will eventually begin playback of the movie. Some DVDs will playa series of previews of other movies (trailers) or other various copyright warnings and disclaimers. In short,the Play Movie feature from the Disc Menu is a set of instructions for the DVD Player for playback.

Languages The Languages, or Language Selection, item allows the user to select the dialog language forplayback from the available languages on the disc. Typically, on a Region 1 Disc, the default language isEnglish and a selection will not be necessary unless a language other than English is desired.

Scene Selection The Scene Selection, or chapter Selection, item allows the user direct access to any ofthe Chapters of the main title (feature). Unlike the Play Movie item, Scene Selection is direct access byaddressing title and chapter marks to begin playback from.

TIP: If the Play Movie feature causes problems within the DVD Player, try to directly access the first chapterof the movie. This may provide the user the ability to play the movie while a resolution to the issue isdeveloped.

Special Features Special features are one of the major advantages of DVDs over VHS tapes. The SpecialFeatures item, if available, will often open a sub-menu listing the various additional features on the disc.These additional features may often include directorys commentaries which is an additional audio track withthe normal sound level decreased and comments of the films director (or others) easily heard. SpecialFeatures may also include small featurettes documenting the making of the main feature and/or historicalbackground of the main feature.

Audio Setup If the DVD disc includes multiple audio formats, such as the addition of DTS, the AudioSetup item provides access to select the desired audio format.

Subtitles The Subtitles item will provide access to select between multiple subtitle languages if availableon the disc.

General Information 33 Playback Operation

Audio CD or MP3 Disc

All LG Zenith DVD Players are capable for playing Audio CDs. Most LG Zenith DVD Players arecapable of playing MP3 files. Various DVD Players can read MP3 files from DVDR, DVDRW, CD-R, orCD-RW discs, while other DVD Players can only read MP3 files from CD-R and CD-RW discs. Check theOwners Manual of each DVD Player to determine which type of disc that MP3 files can be read from.

It is also important to check the Owners Manual to determine what restrictions are imposed onreading MP3 files from a disc. Each DVD Player has different requirements on the sampling rate, filestructure, and number of total files on a disc containing MP3 files.

NOTE: Customers should note that permission is required in order to download MP3 / WMA files and musicfrom the internet. LG Electronics has no right to grant such permission. Permission should always be soughtfrom the copyright owner.

The most basic and general method of playback of an Audio CD or MP3 Disc is to insert the discand allow playback to begin automatically. Audio CDs will automatically play. MP3 Discs will automaticallyplay providing there are MP3 files in the root directory of the disc. If a MMP3 Disc contains MP3 files infolders, playback will not automatically begin.

Changing Tracks / FilesYou may advance to the next track on an Audio CD, or file on a MP3 Disc, by pressing the >>|

button/key. Pressing the |

Playback Operation 34 General Information

Playing Memory Cards

Select LG Zenith DVD Players are capable of reading files from Memory Cards. Depending on theindividual DVD Player model, available files for playback from a memory card may include MP3 files,Windows Media files (WMA), JPEG photos, and DivX video files.

Models that are capable of reading files from Memory Cards will have two Memory Card slots.These slots can accept the following types of Memory Cards:

Compact Flash Card (CFC) Micro Drive (MD) Secure Digital Card (SD) Multi Media Card (MMC) Memory Stick (MS) Memory Stick Pro (MS-Pro) eXtreme Digital picture card (xD)

In order for a Memory Card to be recognized by LG Zenith DVD Players, it must be formattedusing a FAT structure (FAT12, FAT16, or FAT32). NTFS structured Memory Cards are not recognizable. TheDVD Players also impose a limit on the number of files on a Memory Card in order to operate in the unit.See the Owners Manual for details for each model.

Once a Memory Card has been inserted into one of the twoslots on the DVD Player, press the MEMORY button on theRemote Control and select the slot with the Memory Card youwish to access. Once the Memory Card is selected and read,operation reverts to typical playback of the associated file type onthe card.

NOTE: Only one Memory Card can be inserted into a slot at a time. Both slots can be used but, never inserttwo cards into one slot.

NOTE: Before removing a Memory Card, press the MEMORY button on the Remote Control to exit theMemory Card function of the DVD Player and return to DVD functions (DVD Screen). Failure to exit theMemory Card function could cause damage to the Memory Card or the files on it.

randomly selected track, or MP3 file, while preserving the Random function. Once all of the tracks, or MP3files, have been played, playback will stop (each track will play once).

Programmed PlaybackThe Program function allows you to specify which tracks, or MP3 files, to play and the order of

playback. To set tracks for programmed playback, move tracks from the List side of the Audio Disc Menu tothe Program side.

NOTE: All programmed playback is cleared when the disc is ejected or power is turned off.Playing JPEG Files

Many LG Zenith DVD Players have the ability to display JPEG photo files from CDs. Check theOwners Manual to determine if a particular LG Zenith DVD Player has this ability and any restrictionsimposed such as file size, structure, or number of files.

After inserting a disc containing JPEG photos, the Photo Menu will appear. Selecting a JPEG filewill begin a slide show on the display. Often, there may be on-screen display containing information such asthe file name. To hide this OSD, press the RETURN button on the Remote Control.

General Information 35 Player Maintenance

DVD Player Maintenance

Keeping the exterior surfaces clean Do not use volatile liquids such as insecticide spray near the unit Since they will leave marks on the cabinet surface, do not leave rubber or plastic products in contact

with the unit for long periods of time. This includes the rubber or plastic feet of another electronicsdevice stacked on top of the DVD Player.

Do not use or keep candles near the DVD Player as they can drop wax on or in the DVD Player orleave colored marks on the cabinet.

Cleaning the DVD Player Use a soft, dry cloth. If the surfaces are extremely dirty, use a soft cloth lightly moistened with a mild

detergent solution. Do not use strong solvents such as alcohol, benzene, or paint thinner, as these might damage the

surface of the unit. The Optical Pick-up assembly should be cleaned after every 1,000 hours of use.

Operation Troubleshooting 36 General Information

DVD Operation Troubleshooting

Often, when a customer calls in with a problem, their problem will be stated as Wont Play. Whilethis may seem logical to the customer, it gives no detail as to what the problem actually is and no means toresolve the problem. This issue can usually be broken down into one of five categories; No Video, NoAudio, Problems during Playback, Problems accessing Movie, or Will not play disc at all.

No VideoThe most common cause for a customer not being able to see video from the DVD Player is that the

DVD Player is set to Progressive Scan and the TV cannot accept such signals. The Progressive Scanfeature changes the output of the DVD Players Component output to 480p resolution from 480i and turns offthe Composite and S-Video outputs. In order for a TV to accept and display video when the ProgressiveScan feature is enabled is if it is a digital ED or HD TV capable of displaying 480p video. Many customerswill enable the Progressive Scan feature while connected to a standard analog TV. This will cause NoVideo. To correct this issue, simply turn the Progressive Scan feature OFF in the DVD Players Setup Menu(Press and hold the STOP button for 5 second, without a disc in the unit).

Another possible cause of No Video to investigate before assuming that the DVD Player is in needor service is the possibility of faulty connections. Confirm that the DVD Player is connected to the TVcorrectly and that the TV is set to the correct input.

No AudioA common cause for a customer to complain of no audio output is incorrect settings of the DVD

Players Audio options. Dolby Digital, DTS, and MPEG should only be set to Bitstream if the connectedequipment is capable of receiving such signals. A/V Receivers capable of receiving Dolby Digital and/or DTSwill carry the respected logos. Otherwise, these settings should be OFF or PCM.

Another common cause of customers complaining No Audio is if the audio connections are notcorrect from the DVD Player to the TV or A/V Receiver. Confirm that the DVD Player is connected to the TVor A/V Receiver correctly and that the TV or A/V Receiver is set to the correct input.

With Home Theater in a Box (HTiB) models, a common cause of audio problems is if the customerdoes not understand the purpose and correct usage of the Center Channel speaker. In surround soundmodes, the Center Channel speaker provides the entire dialog, with the Left and Right Channels providingfront stage background. If the Center speaker is not corrected, then no dialog will be heard.

Customer StatesWont Play

Will not Play DiscAt All

Can Access MenuBut Not Play Movie

No Video No Audio

Problems DuringMovie Playback

Scratched Disc

Dirty Disc

Region Code

Feature LockUp

Skips

A / V Sync

Progressive Scan

Connections

Settings

Connections

Auto - Play

Invalid DiscRegion Code not 1

RCE error

No Dialog

Layer Change

Dirty Lens

General Information 37 Operation Troubleshooting

Problems During Movie PlaybackThis category is defined by; The DVD Player can read the disc, access the menu, and begin

playback with issues developing during the feature playback. One possible cause of concern to customersis the layer change required for playback of any Dual Layered DVD. Once the DVD Players reaches theouter edge of the first layer, the laser must refocus to begin reading the inner layer. The servo motor thatmoves the laser assembly must also change directions and begin bringing the laser inward. This transitionrequires a certain amount of time, causing a slight pause in the playback, usually near the middle and low-action portion of the movie. There is nothing wrong with the DVD Player, however, as a laser ages or getsdirty, this layer change will take an increasingly longer time.

If a disc is scratched, dirty, or otherwise damaged, playback may be affected during playback. If theinner portion of the disc is without flaws but, the middle or outer portions have flaws, playback will beginnormal with problems developing later into the playback. Check the disc for any damage or debris.

Another possible issue during playback of a movie could be the audio and video becoming out ofsync with each other. This can be a common issue with up-conversion DVD Players, and sometimesdemonstrated on other standard DVD Players. Sometimes when a movie has been paused for anextended amount of time and then resumed, the audio and video can become out of sync. Due to the extravideo processing required within up-conversion DVD Players, this can be a common occurrence which iseasily remedied. Simply Reverse Scan the movie slightly and then resume playback. This will allow the DVDPlayer to re-sync the audio and video and resume correct playback. If audio and video sync issues are seenon standard DVD Players, and is demonstrated on multiple DVD titles, it must be reported to the LGElectronics Engineering Department for investigation.

Problems Starting Movie but Can Access MenuThis category is defined by; The DVD Player can read the disc and typically access the DVD Menu,

however, the movie cannot begin. One aspect of this type of issue is a feature lockup. This is characterizedby selecting Play Movie from the DVD Menu and then the DVD Player locks up on one of the small titlesbefore the main feature title, such as one of the various disclaimers often included within a DVD disc. Whena feature lockup occurs, the LG Electronics Engineering Department should be notified. A temporary work-around for the customer is to access the Chapter/Scene Selection portion of the DVD Menu and selectChapter 1 as a start point for playback, effectively bypassing any and all disclaimers and previews, until anofficial resolution is developed.

Another potential problem in this category relates to Region Codes. If the Region Code of the DVDhas been changed, or is otherwise incorrect (not 1), then anytime a Region Coded 1 DVD is inserted, aRegion Code Error will be displayed. The Region Code of the DVD Player can be verified by accessing theSystem Information Screen (pg.17). The Region Code will be displayed on the second line of information.For all LG Zenith DVD Players sold in the U.S., the Region code should be 1. If the Region Code is set toanything but 1, it must be changed to 1.

Even though Region Code 0 should play all DVD movies, some DVD Titles include RCE encoding(pg. 24) requiring a DVD Player to be set to Region 1 and not allowing playback on any other Region Code.If the DVD Player is set to 0, it must be changed to 1. If the DVD Player is set to 1, and the region CodeError Screen is still displayed, the issue must be reported to LG Electronics Engineering Department asthere may be an issue within the coding of the DVD Player itself.

Operation Troubleshooting 38 General Information

Problems Reading the DiscThis category is defined by; The DVD Player cannot recognize the disc at all and either locks up or

ejects the disc with invalid disc, or similar message, displayed. There are several factors that can causethis issue, other than DVD Player failure, that should be investigated prior to sending the DVD player in forservice.

Confirm that the disc in question is supported by the DVD Player. Various models have differentcapabilities in regards to playable discs. Keep in mind that even though a customer might say It is a DVDdisc, that does not tell what type of DVD disc it is. Not all LG Zenith DVD Players can play all types ofDVD discs. All DVD Players are capable of playing DVD-Video discs but, only select models can play DVD-Audio or DVD-ROM discs.

Confirm that the disc is not scratched or dirty. Scratches or debris on the inner portion of the disc orexcessive damage to the entire disc, can render the disc unreadable.

Check the status of the Auto Play function of the DVD Player. If a particular DVD-Video disc is notbeing read by the DVD Player but, other DVD-Video discs are read, the disc in question may not becompatible with Auto Play. Turn the Auto Play feature OFF and retry the disc.

If the DVD Player is in an area where it is susceptible to dust or cigarette smoke, the lens assemblymay get dirty and prevent proper reading of a disc. Recommend that the customer use a lens cleaning discin order to attempt to clean the unit.

The laser in a DVD Player does wear out with time and use. Therefore there are cases where aDVD Player will require service.

Technical Information 39 Contents

SECTION II Technical Information

Safety NotesProduct Safety GuidelinesServicing Precautions

Loading MechanismDisassemblyPickup Assembly RemovalBlock DiagramDVD Player Operation FlowchartTechnical Troubleshooting FlowchartUpdating Firmware

Safety Notes 40 Technical Information

PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS

Important Safety NoticeThis section of the manual was prepared for use only by trained audio-video service technicians.

When servicing this product, under no circumstances should the original design be modified or alteredwithout permission from LG Electronics Inc. / Zenith Electronics Corporation. All components should bereplaced only with types identical to those in the original circuit and their physical location, wiring and leaddress must conform to original layout upon completion of repairs.

Special components are also used to prevent x-radiation, shock and fire hazard. These components areindicated by the letter x included in their component designators and are required to maintain safeperformance. No deviations are allowed without prior approval by LG Electronics Inc. / Zenith ElectronicsCorporation. Circuit diagrams may occasionally differ from the actual circuit used. This way, implementationof the latest safety and performance improvement changes into the set is not delayed until the new serviceliterature is printed.

CAUTION: Do not attempt to modify this product in any way. Never perform customized installations withoutmanufacturers approval. Unauthorized modifications will not only void the warranty, but may lead toproperty damage or user injury.

Service work should be performed only after you are thoroughly familiar with these safety checks andservicing guidelines.

Graphic Symbols

The exclamation point within an equilateral triangle is intended to alert the service personnel toimportant safety information in the service literature.

The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert theservice personnel to the presence of non-insulated dangerous voltage that may be ofsufficient magnitude to constitute a risk of electric shock.

The pictorial representation of a fuse and its rating within an equilateral triangle is intended toconvey to the service personnel the following fuse replacement caution notice:CAUTION: FOR CONTINUED PROTECTION AGAINSTRISKOF FIRE, REPLACE ALLFUSESWITH THE SAME TYPE ANDRATING AS MARKED NEAR EACH FUSE.

SERVICE INFORMATIONWhile servicing, use an isolation transformer for protection from AC line shock. After the original serviceproblem has been corrected, make a check of the following:

FIRE AND SHOCK HAZARD1. Be sure that all components are positioned to avoid a possibility of adjacent component shorts.

This is especially important on items trans-ported to and from the repair shop.2. Verify that all protective devices such as insulators, barriers, covers, shields, strain reliefs, power

supply cords, and other hardware have been reinstalled per the original design. Be sure that the safetypurpose of the polarized line plug has not been defeated.

3. Soldering must be inspected to discover possible cold solder joints, solder splashes, or sharpsolder points. Be certain to remove all loose foreign particles.

4. Check for physical evidence of damage or deterioration to parts and components, for frayed leadsor damaged insulation (including the AC cord), and replace if necessary.

5. No lead or component should touch a high current device or a resistor rated at 1 watt or more.Lead tension around protruding metal surfaces must be avoided.

Technical Information 41 Safety Notes

6. After reassembly of the set, always perform an AC leakage test on all exposed metallic parts ofthe cabinet (the channel selector knobs, antenna terminals, handle and screws) to be sure that set is safe tooperate without danger of electrical shock. DO NOT USE A LINE ISOLATION TRANSFORMER DURINGTHIS TEST. Use an AC voltmeter having 5000 ohms per volt or more sensitivity in the following manner:Connect a 1500 ohm, 10watt resistor, paralleled by a .15 mfd 150V AC type capacitor between a knowngood earth ground water pipe, conduit, etc.) and the exposed metallic parts, one at a time. Measure the ACvoltage across the combination of1500 ohm resistor and .15 mfd capacitor. Reverse the AC plug by usinganon-polarized adaptor and repeat AC voltage measurements for each exposed metallic part. Voltagemeasured must not exceed 0.75 volts RMS. This corresponds to 0.5 milliamp AC. Any value exceeding thislimit constitutes a potential shock hazard and must be corrected immediately.

TIPS ON PROPER INSTALLATION1. Never install any receiver in a closed-in recess, cubbyhole, or closely fitting shelf space over, or

close to, a heat duct, or in the path of heated air flow.2. Avoid conditions of high humidity such as: outdoor patio installations where dew is a factor, near

steam radiators where steam leakage is a factor, etc.3. Avoid placement where draperies may obstruct venting. The customer should also avoid the use

of decorative scarves or other coverings that might obstruct ventilation.4. Wall- and shelf-mounted installations using a commercial mounting kit must follow the factory-

approved mounting instructions. A product mounted to a shelf or platform must retain its original feet (or theequivalent thickness in spacers) to provide adequate air flow across the bottom. Bolts or screws used forfasteners must not touch any parts or wiring. Perform leakage tests on customized installations.

5. Caution customers against mounting a product on a sloping shelf or in a tilted position, unless thereceiver is properly secured.

6. A product on a roll-about cart should be stable in its mounting to the cart. Caution the customer onthe hazards of trying to roll a cart with small casters across thresholds or deep pile carpets.

7. Caution customers against using extension cords. Explain that a forest of extensions, sproutingfrom a single outlet, can lead to disastrous consequences to home and family.

Safety Notes 42 Technical Information

SERVICING PRECAUTIONS

CAUTION : Before servicing the DVD covered by this service data and its supplements and addends, readand follow the SAFETYPRECAUTIONS.NOTE : if unforeseen circumstances create conflict between the following servicing precautions and any ofthe safety precautions in this publications, always follow the safety precautions. Remember Safety First:

General Servicing Precautions1.Always unplug the DVD AC power cord from the AC power source before:

(1)Removing or reinstalling any component, circuit board, module, or any other assembly.(2)Disconnection or reconnecting any internal electrical plug or other electrical connection.(3)Connecting a test substitute in parallel with an electrolytic capacitor.

Caution: A wrong part substitution or incorrect polarity installation of electrolytic capacitors mayresult in an explosion hazard.

2.Do not spray chemicals on or near this DVD or any of its assemblies.3.Unless specified otherwise in this service data, clean