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Published by RB 0370 Service PaCE Printed in the Netherlands Subject to modification EN 3122 785 13571
Copyright 2003 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic,
mechanical, photocopying, or otherwise without the prior permission of Philips.
Colour Television Chassis
LC03EAA
Contents Page Contents Page1 Technical Specifications, Connections,
and Chassis Overview 2
2 Safety Instructions, Warnings, and Notes 5
3 Directions for Use 6
4 Mechanical Instructions 14
5 Service Modes, Error messages,
and Repair Tips 20
6 Block Diagrams
Block Diagram (Tuner-IF-Video) 27
Block Diagram (TV Control and Inverter Panel) 28
Block Diagram (Scaler Board) 29
I2C-ICs and Error Codes Overview 30
Powerlines Overview 31
Testpoint Overview TV Board (15/17) 32
Mapping Testp. and Waveforms TV Board 33
Testpoint Overview Scaler Board 34
Testpoint Overview TV Board (23) 35
Wiring Diagram 15 & 17 Inch 36
Wiring Diagram 23 Inch Wide Screen 37
7 Electrical Diagrams and PWB lay-outs Diagram PWB
TV Board: U_Cont (Diagram A1) 38 50-69
TV Board: Mem for 100-pg Txt (Diagram A2) 39 50-69
TV Board: Tuner Function (Diagram A3) 40 50-69
TV Board: IF Video Sync Chr. (Diagram A4) 41 50-69
TV Board: SAW Filter (Diagram A5) 42 50-69
TV Board: Analog Comb Filter (Diagram A6) 43 50-69
TV Board: Audio Delay Line (Diagram A7) 44 50-69
TV Board: Audio Processing (Diagram A8) 45 50-69
TV Board: Audio Ampl. (15/17)(Diagram A9a) 46 50-69
TV Board: Audio Amplifier (23) (Diagram A9b) 47 50-69
TV Board: Local Supply (Diagram A10) 48 50-69
TV Board: SCART I/O (Diagram A11) 49 50-69
Scaler Panel: Power (Diagram C1) 70 80-89
Scaler Panel: I/O & Interface (Diagram C2) 71 80-89
Scaler Panel: Video Decoder (Diagram C3) 72 80-89
Scaler Panel: Scaler (Diagram C4) 73 80-89
Scaler Panel: Output (LVDS) (Diagram C5) 74 80-89
Scaler Panel: SDRAM (Scaler) (Diagram C6) 75 80-89
Scaler Panel: PC-In (Diagram C7) 76 80-89
Scaler Panel: uP (Diagram C8) 77 80-89
Scaler Panel: Video Converter (Diagram C9) 78 80-89
Scaler Panel: HDTV Decoder (Diagram C10) 79 80-89
Side I/O Panel (Diagram D) 90 91
Top Control (Diagram E) 90 92
Inverter Panel (TN) (Diagram IN) 93 94
Inverter Panel (IPS) (Diagram IN1) 95 97
Inverter Panel (IPS) (Diagram IN2) 96 97
Front LED Panel (Diagram J) 98 98
8 Electrical Alignments 99
9 Circuit Descriptions 103
Abbreviation List 115
IC Data Sheets 117
10 Spare Parts List 120
11 Revision List 126
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Technical Specifications, Connections, and Chassis OverviewEN2 LC03E1.
1. Technical Specifications, Connections, and Chassis Overview
1.1 Technical Specifications
.1.1 Reception
Tuning system : PLL
Colour systems : PAL B/G,: PAL D/K,
: PAL I.
: SECAM B/G,
: SECAM D/K,
: SECAM L,
: SECAM L1
:
Sound systems : BI NICAM B/G,
: 2CS B/G,
: FM/FM (5.5-5.74),
: NICAM B/G
: (5.5-5.85),
: NICAM D/K
: (6.5-5.85),
: NICAM I (6.0-6.52),: NICAM L (6.5-5.85)
Built-in radio type : FM
Speakers 15/17 model : Full range
: 2 x 3 W_rms
Speakers 23 model : Full range
: 2 x 5 W_rms
Frequency bands : UVSH
IF Freq. : 38.9 MHz
Channel selections : 100 channels
: Full cable, UVSH
Aerial input : 75 ohm
: Coax, IEC-type
Pixel format : 15: 1024 x 768 (XGA)
: 17: 1280 x 768
(WXGA)
: 23: 1280 x 768
(WXGA)
Viewing angle (HxV) : 15 (TN): 120x90 deg.
: 15" (IPS): 176x176
deg.
: 17 (TN): 160x160
deg.
: 17" (IPS): 176x176
deg.
: 23 (IPS): 176x176
deg.
.1.2 Miscellaneous
Mains voltage 15/17 model : External power
Supply
: Input: 100-240 V_ac,
1.5 A
: Output: 12 V_dc,
: +/- 0.6 V, 60 W
Mains voltage 23 model : External power
Supply
: Input: 100-240 V_ac,
2.5 A
: Output: 24 V_dc,
: +/- 1.2 V, 5A
Mains frequency : 50/60 Hz
Operating temperature : + 5 to + 35 deg. CStorage temp. : -20 to 60 deg. C.
Maximum humidity : 90 % R.H. max
Power dissipation : 15: 47 W
: 17: 51 W
: 23: 55 W
Standby Power dissipation : 1 W
Weight : 15: 6.2 kg
: 17: 6.4 kg
: 23: 11.5 kg
Dim. 15 model (WxHxD) : 517 x 307 x 65 mm
Dim. 17 model (WxHxD) : 480 x 302 x 65 mm
Dim. 23 model (WxHxD) : 705 x 375 x 80 mm
1.2 Connections
1.2.1 Front + Top Controls
Figure 1-1 Left side connections
1.2.2 Rear Connections Part 1
Figure 1-2 Rear Connections Part 1
Subwoofer out1 - Var. level 1x
Headphone, stereo
1 - 32 - 600 ohm
Audio - R
1 - 0.5 V_rms/10 kohm
Audio - L
1 - 0.5 V_rms/10 kohm
MENU
P
TOP CONTROLS
VOLUME PROGRAM
Red
IR
Light sensor(23" only)
CL 36532023_065.eps
100403
L R
Audio Out
EXT. 2
SUBWOOFER
CL 36532054_018.eps290703
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Technical Specifications, Connections, and Chassis Overview EN3LC03E 1.
SCART EXT/2 (CVBS +YC) Only for 17 and 23 models
Figure 1-3 SCART connector
1 -Audio - R 2 - Audio - R 0.5 V_rms/10 kohm 3 -Audio - L 4 - Audio Ground 5 - Blue Ground 6 - Audio - L 0.5 V_rms/10 kohm 7 - N.C.
8 - CVBS-status2 0 - 1.3 V: INT
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3
9 - Green Ground 10- P50
11- N.C.12- N.C.
13- Red Ground 14- Blanking Ground 15- C 1 V_pp/75 ohm 16- N.C.
17- Video in/out Ground 18- RGB sw. ctrl Ground 19- CVBS 1 V_pp/75 ohm 20- CVBS 1 V_pp/75 ohm 21- Common Ground
1.2.3 Rear Connections Part 2
Figure 1-4 Rear Connections Part 2
S-VHS - In Hosiden
1 -Y Ground 2 -C Ground 3 - Y 1 V_pp/75 ohm 4 - C 0.3 V_pp/75 ohm
Video - In (Cinch)
1 - CVBS 1 V_pp/75 ohm
Audio - In (Cinch)
1 - Audio - L 0.5 V_rms/10 kohm 2 - Audio - R 0.5 V_rms/10 kohm
1.2.4 Rear Connections Part 3
Figure 1-5 Rear Connections Part 3
DC - In
1 - 12 V_dc/5A/60W
VGA- in (Sub-D)
Figure 1-6 VGA Connector
1 - Red 0.7 V_pp/75 ohm 2 - Green 0.7 V_pp/75 ohm 3 - Blue 0.7 V_pp/75 ohm 4 - Sense Ground
5 - Ground
6 - Red Ground 7 - Green Ground 8 - Blue Ground 9 - +5V
10- Sync Ground 11 - Sense Ground 12 - Bi-direct. data
13- H-sync 14- V-sync 15- Data clock
Audio - PC In
1 - Audio - R 0.5 V_rms/10 kohm 2 - Audio - L 0.5 V_rms/10 kohm
Aerial - In (IEC)
1 - IEC type 75 ohm, coax
FM Ant (IEC)1 - IEC type 75 ohm, coax
SCART EXT1 - In/Out (RGB/YUV and CVBS)
Figure 1-7 SCART connector
1 - Audio - R 0.5 V_rms/1 kohm 2 - Audio - R 0.5 V_rms/10 kohm 3 - Audio - L 0.5 V_rms/1 kohm 4 - Audio Ground 5 - Blue Ground 6 - Audio - L 0.5 V_rms/10 kohm
1 21
202CL96532137_056.eps
171199
L
R
S-Video
Video In
Audio
CL 36532054_019.eps290703
DC In
PC Input (VGA)
Audio In (PC)
FM ANT
EXT. 1
L
R
CL 36532054_020.eps290703
CL 16532023_043.eps210901
1
610
11
5
15
1 21
202CL96532137_056.eps
171199
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Technical Specifications, Connections, and Chassis OverviewEN4 LC03E1.
7 - Blue 0.7 V_pp/75 ohm 8 - CVBS-status 0 - 1.3 V: INT
4.5 - 7 V: EXT 16:9
9.5 - 12 V: EXT 4:3 9 - Green Ground 10- N.C.
11- Green 0.7 V_pp/75 ohm 12- N.C.
13- Red Ground
14- Blanking Ground
15- Red 0.7 V_pp/75 ohm 16- RGB-status/
FBL 0 - 0.4 V: INT
1 - 3 V: EXT/75 ohm 17- Video in/out Ground 18- RGB sw. ctrl Ground 19- CVBS-out 1 V_pp/75 ohm 20- CVBS-in 1 V_pp/75 ohm 21- Common Ground
1.3 Chassis Overview
.3.1 15/17 model
Figure 1-8 Chassis Overview 15/17 model
.3.2 23 model
Figure 1-9 Chassis Overview 23 model
ComPair
RightSpeaker
LeftSpeaker
TO LCD PANEL
LCD PANEL
CL 36532023_067.eps140403
TOP CONTROL PANELE
A
INVERTER PANELIN
SIDE I/O PANELD
SCALER BOARDC
FRONT LEDPANELJ
TV BOARD
LCD PANEL
TV BOARD
SIDE I/O PANEL
SCALER BOARD
TOP CONTROL PANEL
SpeakerassyR
FRONT LED PANEL
SpeakerassyL
CL 36532044_022.eps011003
To LCD
To
Inverter
E D
J
CA
ComPair
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Safety Instructions, Warnings, and Notes EN5LC03E 2.
2. Safety Instructions, Warnings, and Notes
2.1 Safety Instructions
Safety regulations require that duringa repair:
Always connect the set to the mains via an isolation
transformer (800 VA).
Replace safety components, indicated by the symbol,only by components identical to the original ones.
Safety regulations require that aftera repair, the set must be
returned in its original condition. Pay, in particular, attention to
the following points:
Route the wire trees and HT cables correctly and fix them
with the mounted cable clamps.
Check the insulation of the mains lead for external
damage.
Check the cabinet for defects, to avoid touching of any
inner parts by the customer.
2.2 Warnings
All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD). Careless handlingduring repair can reduce life drastically. Make sure that,
during repair, you are connected with the same potential as
the mass of the set by a wristband with resistance. Keep
components and tools also at this same potential.
Available ESD protection equipment:
Complete kit ESD3 (small tablemat, wristband,
connection box, extension cable and earth cable) 4822
310 10671.
Wristband tester 4822 344 13999.
Be careful during measurements in the high voltage
section (on the inverter panel).
Never replace modules or other components while the unit
is switched 'on'. When you align the set, use plastic rather than metal tools.
This will prevent any short circuits and the danger of a
circuit becoming unstable.
2.3 Notes
2.3.1 General
Clean the LCD display with a slightly humid cloth.
Measure the direct voltages and oscillograms with regard
to the chassis ground (), or hot ground () as this iscalled.
The direct voltages and oscillograms shown in the
diagrams are indicative. Measure them in the Service
Default Mode (see section Service Modes).
Where necessary, measure the voltages in the power
supply section both in normal operation () and in standby(). These values are indicated by means of theappropriate symbols.
The semiconductors indicated in the circuit diagram and in
the parts lists, are interchangeable per position with the
semiconductors in the unit, irrespective of the type
indication on these semiconductors.
2.3.2 Schematic Notes
All resistor values are in ohms and the value multiplier is
often used to indicate the decimal point location (e.g. 2K2indicates 2.2 kohm).
Resistor values with no multiplier may be indicated with
either an 'E' or an 'R' (e.g. 220E or 220R indicates 220
ohm).
All Capacitor values are expressed in Micro-Farads (=
x10-6), Nano-Farads (n= x10-9), or Pico-Farads (p= x10-12).
Capacitor values may also use the value multiplier as the
decimal point indication (e.g. 2p2 indicates 2.2 pF).
An 'asterisk' (*) indicates component usage varies. Refer to
the diversity tables for the correct values.
The correct component values are listed in the Electrical
Replacement Parts List. Therefore, always check this list
when there is any doubt.
2.3.3 Rework on BGA ICs
General
Although (LF)BGA assembly yields are very high, there may
still be a requirement for component rework. By rework, we
mean the process of removing the component from the PWB
and replacing it with a new component. If an (LF)BGA is
removed from a PWB, the solder balls of the component are
deformed drastically so the removed (LF) BGA has to be
discarded.
Device Removal
As is the case with any component, it is essential whenremoving an (LF) BGA that the board, tracks, solder lands, or
surrounding components are not damaged. To remove an
(LF)BGA, the board must be uniformly heated to a temperature
close to the reflow soldering temperature. A uniform
temperature reduces the chance of warping the PWB.
To do this, we recommend that the board is heated until it is
certain that all the joints are molten. Then carefully pull the
component off the board with a vacuum nozzle. For the
appropriate temperature profiles, see the IC data sheet.
Area Preparation
When the component has been removed, the vacant IC area
must be cleaned before replacing the (LF)BGA.
Removing an IC often leaves varying amounts of solder on themounting lands. This excessive solder can be removed with
either a solder sucker or solder wick. The remaining flux can be
removed with a brush and cleaning agent.
After the board is properly cleaned and inspected, apply flux on
the solder lands and on the connection balls of the (LF) BGA.
Note: Do not apply solder paste, as this has shown to result in
problems during re-soldering.
Device Replacement
The last step in the repair process is to solder the new
component on the board. Ideally, the (LF)BGA should be
aligned under a microscope or magnifying glass. If this is not
possible, try to align the (LF)BGA with any board markers.
To reflow the solder, apply a temperature profile according to
the IC data sheet. So as not to damage neighbouringcomponents, it may be necessary to reduce some
temperatures and times
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Mechanical InstructionsEN14 LC03E4.
4. Mechanical Instructions
Index of this chapter:
1. Service Position
2. Stand Removal
3. Rear Cover Removal
4. Shield Removal
5. I/O Assy Removal
6. LED/Remote Control Board Removal7. TV Board Removal
8. Scaler Board Removal
9. Inverter Board Removal
10. Top Control Assy Removal
11. LCD Panel Removal
12. Re-assembly
Note:Figures below can deviate from the actual situation, due
to different set executions.
4.1 Service Position
First, put the TV in its service position. Therefore place it upside
down on a tabletop (use a protection sheet or a foam cushion).Take care that this is flat and free from obstacles like screws,
to prevent damaging the fragile LCD screen.
ESD protective service buffers, as shown below, can be used
(3122 785 90580).
Figure 4-1 ESD protective service buffers
4.2 Stand Removal
4.2.1 For 15/17 inch model
Use a Torx screwdriver to remove the stand from the backside
of the monitor housing by unscrewing and removing the four
M4x12 mounting screws and next, take away the stand.
Figure 4-2 TV stand removal 15/17 model
4.2.2 For 23 inch model
1. Use a Torx screwdriver to remove the stand from thebackside of the monitor housing by unscrewing the four
M4x12 mounting screws.
2. Remove the four mounting screws out of their mounting
holes.
3. First push the stand in horizontal direction to the monitor
bottom side, then lift the stand and take it away.
Figure 4-3 TV stand removal 23 model
4.3 Rear Cover Removal
4.3.1 For 15/17 inch model
Manually unlock and remove both corner cover caps.
Figure 4-4 TV rear cover removal 15/17 model
CL 36532044_001.eps160503
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Mechanical Instructions EN 15LC03E 4.
Continue with the paragraph 4.3.3.
4.3.2 For 23 inch model
Manually unlock and remove the IO connector cover cap.
Figure 4-5 TV rear cover removal 23 model
4.3.3 For all models
1. Make sure all power-, audio-, video-, coax-, and SCART
cables are unplugged.
2. Remove the five Torx screws securing the monitor rear
cover.
3. Carefully remove the rear cover and store it on a safe
place.
4.4 Shield Removal
Remove at the SCART plug side the screw besides the
plug.
Remove the connector plate.
Figure 4-6 TV SCART plug side
Unscrew, at the bottom side, the connector plate screw and
remove this plate.
Figure 4-7 Bottom side connector plate
Use a 5 mm socket screwdriver to remove both connector
distance bolts from the PC input / VGA-in socket.
Figure 4-8 VGA Connector screws
Remove all shield mounting screws.
Figure 4-9 Shield with mounting screws
Bend at the SCART-plug side the thin metal electrostatic
shield away from the sockets, so the complete shield can
be lifted later on.
Figure 4-10 Shielding
Unlock the shield by carefully moving it a few millimetres to
the bottom side of the monitor. The topside of the shield
has to detach from underneath the two lock clamps, which
secure the shield at topside. Carefully lift the shield with
respect for the cables and/or connector sockets. Take out
the shield and store it on a safe place.
CL 36532044_002.eps160503
Connector cover cap
CL 36532044_003.eps160503
Connector plate screws
CL 36532044_004.eps160503
Connector plate screws
CL 36532044_006.eps160503
VGA connector distance screws
CL 36532044_007.eps160503
Electrostatic shield
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Mechanical InstructionsEN16 LC03E4.
4.5 I/O Removal
4.5.1 Side I/O assy removal for 15/17 inch model
Figure 4-11 Side I/O assy removal for 15/17 model
1. Disconnect the cable connector [0240] from the side I/O
assy.
2. Unlock this unit by shifting it one centimetre to the outside
direction of the monitor.
3. Take out this side I/O assy.
4.5.2 Side I/O assy removal for 23 inch model
Figure 4-12 Side I/O assy removal for 23 model
1. Disconnect the cable connector [0240] from the side I/O
assy.2. Unlock this unit by pushing it one centimetre in horizontal
direction (to bottom side) of the monitor.
3. Take out this side I/O assy.
4.6 Front LED PanelRemoval
4.6.1 Only for the 23 inch model
To gain access to the Front LED panel unscrew and remove
the three mounting screws from the loudspeaker box covering
the panel. Release cables and take out the loudspeaker box.
Continue with the paragraph 4.6.2.
4.6.2 For all models
1. Unlock the transparent securing clip, which holds the Front
LED panel in place, and take out the Front LED panel .
(See previous figure: Side IO assy removal for 15/17
model).
2. To completely remove the Front LED panel (incl. Lens),
remove the assy screw.
4.7 TV Board Removal
4.7.1 For 15 /17inch model
Disconnect all five TV board connectors out of the regarding
sockets [3225], [1234], [1231], [1902], and [1732].Continue with the paragraph 4.7.3.
4.7.2 For 23 inch model
Disconnect all six TV board connectors out of the regarding
sockets [3225], [1233], [1231], [1902], [1732] and [1734].
Continue with the paragraph 4.7.3.
4.7.3 For all models
1. Pull the thin flat cable out of its special shaped connector,
[1010].
2. Unscrew and remove the three TV board mounting screws.
3. Take out the TV board.
Figure 4-13 TV board
Note: Sometimes it is necessary to place the TV board in its
service position, for easy signal measuring. See picture below.
Figure 4-14 TV board in service position
CL 36532044_008.eps021003
Side I/O Assy
CL 36532044_012.eps160503
CL 36532044_010.eps160503
CL 36532044_010.eps160503
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Mechanical Instructions EN 17LC03E 4.
4.8 Scaler Board Removal
1. Carefully disconnect the cable connector in the centre of
the Scaler board [1506]. Take care not to damage the
fragile cables.
2. Disconnect the cable connectors at the edge of the Scaler
board [1402] and [1003].
3. Pull the thin flat cable out of its special shaped connector
[1681].
4. Unscrew and remove two Scaler board mounting screws.
5. Take out the Scaler board.
Figure 4-15 Scaler board
Note: Sometimes it is necessary to place the Scaler board in a
service position. In this case it is necessary to use the specific
Repair kit scaler board including two extra long cables (order
nr. 3122 785 90490).
Figure 4-16 Scaler board in service position
Important: Video converter chip heat sink.
1. Before you de-solder the video converter chip SAA7118
from the board, the heat sink must be removed from the
chip. Use a pair of pliers to remove the heat sink by means
of a twist- and pull movement (see figure). Store the heat
sink on a safe place, adhesive side up!
2. Place the self-adhesive heat sink back in place after the
chip exchange action has been finished.
Figure 4-17 Heat Sink Removal
4.9 Inverter Board Removal (only for 15/17 inchmodel)
Note:The Inverter board is available in two versions: one
model for TN-displays and another model for IPS-displays. The
(dis)assembly procedure is the same for both versions.
1. Disconnect the cable from the Inverter board.
2. Disconnect at top and bottom side all the black/white and
pink cable connectors.
3. Use a pair of pliers to bend the metal securing clamp in
such a way that the Inverter board can be taken out.
4. Remove the Inverter board and store it on a safe place.
Figure 4-18 Inverter board
4.10 Top Control Assy Removal
1. Remove the cable from the Top control assy [1500].
2. Remove both mounting screws that secure the Top control
assy to the monitor frame.
3. Take out the Top control assy.
CL 36532044_013.eps160503
CL 36532044_011.eps160503
CL 36532044_014.eps160503
Heat sink
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Mechanical Instructions EN 19LC03E 4.
of the bottom side. You will need this screw position for
mounting the TV rear cover.
Take extra care when fixing the connector bracket screw at
SCART plug side. You can easily damage the TV board
when you use too much force.
Do not forget to re-place the ground cable of the Scaler
board when mounting the screw at topside.
Take extra care when reconnecting the Inverter board
backlight connectors (black/white/pink). Connect them
properly to avoid high voltage sparking
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Service Modes, Error Messages, and Repair TipsEN20 LC03E5.
5. Service Modes, Error Messages, and Repair Tips
Index of this chapter:
1. Test Points
2. Service Modes
3. Errors
4. The Blinking LED Procedure
5. ComPair
6. Trouble Shooting Tips
5.1 Test Points
This chassis is equipped with test points in the service printing.
In the schematics test points are identified with a rectangle box
around Fxxx or Ixxx. On the PCB, test points are specifically
mentioned in the service manual as half moons with a dot in
the centre.
Measurements are performed under the following conditions:
Video: colour bar signal.
Audio: 3kHz left, 1kHz right.
5.2 Service Modes
5.2.1 Limited DST Support
This chassis does still have some limited Dealer Service Tool
(DST) support, although this remote is not for sale anymore.
The set can be put in two service modes via the DST (RC7150).
These are the Service Default Mode (SDM) and the Service
Alignment Mode (SAM).
Installation Features Dealer
For easy installation and diagnosis the DST can be used.
When there is no picture (to access the error code buffer via the
OSD), DST can enable the functionality of displaying thecontents of the entire error code buffer via the blinking LED
procedure.
The dealer can use the RC7150 for programming the TV-set
with presets. Ten different program tables can be programmed
into the DST via a GFL or MG TV-set (downloading from the
GFL or MG to the DST; see GFL or MG service manuals) or by
the DST-I. For explanation of the installation features of the
DST, the directions for use of the DST are recommended.
5.2.2 Service Default Mode (SDM)
Purpose of SDM:
To provide a situation with predefined settings to get the
same measurements as in this manual. To start the Blinking LED procedure.
To have the possibility to override the 5V protection
Activating SDM:
By transmitting the "DEFAULT" command with the RC7150
Dealer Service Tool (this works both while the set is in
normal operation mode or in the SAM).
Standard RC sequence 0-6-2-5-9-6 followed by pressing
the MENU-button (this works both while the set is in
normal operation mode or in the SAM).
By shorting pins 5 and 6 of connector 1170 of LED/RC
panel. Then apply DC supply from the AC-DC adaptor (not
required to remove the metal shielding).
Note: By temporarily shorting pins 5 and 6 of connector 1170
and then applying DC supply from the AC-DC adaptor, the 5V
protection is disabled.
Caution:Overriding the 5V protection should only be used for
a short period of time. In case of S/W protections (error 4) the
set will shutdown after 15 sec.
For recognition, SDM is displayed at the upper right corner of
the screen.
Figure 5-1 SDM Menu
Deactivating SDM:
Press the EXIT-button on the DST, or
Press 0-0 on the standard RC, or
Switch the set to Standby (the error buffer is NOT cleared).
Note:When the mains power is switched off while the set is in
SDM, the set will switch to SDM immediately when the mains
is switched on again.
The SDM sets the following pre-defined conditions:
PAL/SECAM sets: tuning at 475.25 MHz PAL.
NTSC sets: tuning at channel 3 (61.25 MHz).
Volume level is set to 25% (of the maximum volume level).
Other picture and sound settings are set to 50%.
The following functions are switched off in SDM (and after
leaving SDM):
Timer.
Sleep timer.
The following functions are disabled during SDM (and enabled
after leaving SDM)
Parental lock.
Blue mute.
Hospitality Mode.
No-ident Timer (normally the set is automatically switched
off when no video signal (IDENT) was received for 15
minutes).
All other controls operate normally.
Special Functions SDM
Access to normal user menu
Pressing the MENU button on the remote control switches
between the SDM and the normal user menus (with the SDM
mode still active in the background).
Channel search
Pressing the P+ button of the remote control will select the
next available channel in the preset list.
Type nr, Error buffer, etcPressing the OSD or info+ button of the remote control
shows/hides the type nr, error buffer, SW ID, Hours and option
codes. OSD can be hidden to prevent interference with
waveform measurements.
SDM Menu
CL 36532023_084.eps110403
T Y P E : 1 7 P F 9 9 4 5 / 0 1 2 H R S : 0 0 2 9
S W I D : L C 0 3 E 2 1 - 1 . 1 1 S 3 1 7 1 . 0 3
E R R : 0 0 0 0 0 0 0
O P T : 7 9 2 5 4 1 4 5 6 1 2 8 0 0 0
S D M
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Service Modes, Error Messages, and Repair Tips EN 21LC03E 5.
Access to SAM
By pressing 0-6-2-5-9-6 info+ (or OSD) in sequence on the
standard RC will switch from SDM to SAM.
5.2.3 Service Alignment Mode (SAM)
Purpose of SAM:
To do alignments.
To change option settings.
To display/clear the error code buffer values.
Activating SAM:
By transmitting the "ALIGN" command with the RC7150
Dealer Service Tool (this works both while the set is in
normal operation mode or in the SDM).
Standard RC sequence 0-6-2-5-9-6 followed by pressing
the info+-button (this works both while the set is in normal
operation mode or in the SDM).
Deactivating SAM:
Press the EXIT-button on the DST, or
Press 0-0 on the standard RC, or
Switch the set to Standby (the error buffer is NOT cleared).
Note:When the AC-DC adaptor power is switched off while the
set is in SAM, the set will go back to normal mode of operation
when the AC-DC adaptor is switched on again.
In SAM the following information is displayed on the screen:
Figure 5-2 SAM Menu
Operation hours timer (hexadecimal).
Software identification of the main micro controller of TV-
board (LC03BBC-X.YY), and (S3DD E.FF) is the software
identification for micro-P of Scaler board:
LC03 is the chassis name for LCD-TV launched in
2003. BBC is 1 letter and 2 digit combination to indicate the
regional software type and the supported languages.
X = main version number.
YY= subversion number.
S3 = Scalar board used in 2003.
DD = screen size of the LCD panel.
E = main version number.
FF = subversion number.
Error buffer (7 errors possible).
Option bytes (8 codes possible), summary of options are
explained below.
Sub menus are listed in a scroll-menu.
SAM Menu ControlMenu items can be selected with the cursor UP/DOWN key.
The selected item will be highlighted. When not all menu items
fit on the screen, moving the cursor UP/DOWN will display the
next/previous menu items.
With the cursor LEFT keys, it is possible to:
Activate the selected menu item (e.g. GEOMETRY).
Change the value of the selected menu item (e.g.
HOR.SHIFT).
Activate the selected submenu (e.g. ASBY ON/OFF).
To return to the main menu / previous menu, press MENU
keys on the remote control
Access to Normal User Menu
Pressing the MENU button on the remote control switches
between the SAM and the normal user menus (with the SAM
mode still active in the background). Pressing the MENU keyin a submenu will go to the previous menu.
Menus and Submenus
CLEAR ERRORS: Erasing the contents of the error buffer.
Select the CLEAR ERRORS menu item and press the MENU
RIGHT key. The content of the error buffer is cleared.
The functionality of the OPTIONS and ALIGNMENTS (TUNER,
WHITE TONE, GEOMETRY, SOUND and SMART SETTING)
sub menus are described in chapter 8.
5.2.4 Customer Service Mode (CSM)
This chassis is equipped with the Customer Service Mode(CSM, like in the A10-chassis). CSM is a special service mode
that can be activated and deactivated by the customer, upon
request of the service technician/dealer during a telephone
conversation in order to identify the status of the set. This CSM
is a 'read only' mode therefore modifications in this mode are
not possible.
Activating Customer Service Mode.
The Customer Service Mode can be switched on:
By pressing RC button is sequence 1-2-3-6-5-4 or,
By pressing simultaneously the MUTE button on the
remote control and any key on the TV control buttons (P+,
P-, VOL +, VOL -) for at least 4 seconds.
When the CSM is activated:
Picture and sound settings are set to nominal levels.
Modes that interfere with the behaviour of the set are
switched off (sleep timer, auto standby, etc.).
Pressing cursor DOWN v on the RC will switch to CSM2
screen if it is in CSM1 screen. Likewise pressing cursor UP
^ will switch to previous CSM1 screen.
Pressing P+ or P- on RC will select next available
channel to be displayed.
Pressing channel numeric keys on RC will select the
desired channel to be displayed.
Deactivating Customer Service Mode.
The Customer Service Mode will be switched off after:
Pressing any key on the remote control handset (exceptP+, P- and cursor up/down)
Switching off the TV set with the mains switch.
All settings that were changed during activation of CSM are
restored to the initial values.
Customer Service Mode Information Screen
After activating the Customer Service Mode the following
screen will appear.
SAM Menu
CL 36532023_083.eps160403
T Y P E : 1 7 P F 9 9 4 5 / 0 1 2 H R S : 0 0 2 9
S W I D : L C 0 3 E 2 1 - 1 . 1 1 S 3 1 7 1 . 0 3
E R R : 0 0 0 0 0 0 0
O P T : 7 9 2 5 4 1 4 5 6 1 2 8 0 0 0
C L E A R E R R O R S
O P T I O N S
T U N E RW H I T E T O N E
G E O M E T R Y
S O U N D
S M A R T S E T T I N G
S A M
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Service Modes, Error Messages, and Repair TipsEN22 LC03E5.
Figure 5-3 CSM 1
The Customer Service Menu (CSM1) shows the following
information:
Line 1: TYPE: 99XX9999/99XHRS: nnnn. TYPE: type-
version/model of the set (i.e. 17PF9945/12). HRS:
Hexadecimal counter of operating hours. (Standby hours
are counted as operating hours).
Line 2: SWID: AAAABBC-X.YYS3DDE.FF. SWID:(Software identification of the main micro controller on TV-
Board and Scaler board) See paragraph Service
Alignment Mode (SAM). Details on available software
versions can be found in the chapter Software Survey of
the publication Product Survey - Colour Television.
Line 3: CODES: xx xx xx xx xx xx xx . Error code buffer
(see paragraph Errors). Displays the last 7 errors of the
error code buffer.
Line 4: OPT xxx xxx xxx xxx xxx xxx xxx xxx. Option
bytes. Option bits control the software and hardware
functionality of the chassis. An option byte or option
number represents 8 of those bits. Each option number is
displayed as a decimal number between 0 and 255. The
set may not work correctly when an incorrect option code
is set. See chapter 8 for more information on correct optionsettings
Line 6: SYSTEM: EUROPE/WEST EUR/EAST EUR/UK/
FRANCE. Indicates which colour and sound system is
installed for this preset as defined in the Manual INSTALL
menu:
PAL BG
PAL I
PAL DK
SECAM BG
SECAM DK
SECAM LL
Line 7: NO SIGNAL. Indicates that the set is not receiving
an ident signal on the selected source.
No or bad antenna signal; connect a proper antenna
signal Antenna not connected; connect the antenna
No channel / preset is stored at this program number;
go to the INSTALL menu and store a proper channel at
this program number
The tuner is faulty (in this case the CODES line will
contain number 13); check the tuner and replace/repair
if necessary
Note:On some models, BLUE MUTE is displayed (if the BM
option is ON) when no signal is received.
Line 8: TIMER ON. Indicates that the sleep timer is
activated. Complaints that may be caused by the activation
of the sleep timer.
Line 9: CHANNEL BLOCKED. Indicates that one or more
channels are locked except the selected channel.Complaints that may be caused by locked channels:
TV cannot be switched on from standby with the local
keyboard buttons
P+ and P- buttons on local keyboard do not function
To disable the LOCK feature:
1. Select FEATURE menu (with the Remote Control)
2. Select LOCK (with the RC)
3. Set to OFF
Line 10: NOT PREFERRED. Indicates that the current
channel is not in the preferred channel list (by default, all
channels are skipped. A channel can be added as a
selected channel to the list of preferred channels:
1. Select INSTALL menu
2. Select CHANNEL EDIT
3. Select ADD/DELETE4. Set to ADD with the left/right cursor keys
Line 11: SOURCE. Indicates which SOURCE is installed
for this preset: EXT1, SVHS2, EXT2, or Tuner.
Line 12: SOUND. Indicates which sound mode is installed
for this preset: Mono, NICAM, Stereo, L1, L2, SAP, Virtual,
or Digital.
Line 13: VOLUME. Value indicates level at entry CSM.
Line 14: BALANCE. Value indicates level at entry CSM.
Line 15: COLOUR. Value indicates level at entry CSM.
Figure 5-4 CSM 2
The next Customer Service Menu (CSM2) shows the following
information:
Line 6: BRIGHTNESS. Value indicates level at entryCSM.
Line 7: CONTRAST. Value indicates level at entry CSM.
Line 8: HUE. Value indicates level at entry CSM.
Line 9: HOTEL MODE ON. Indicates that the Hotel mode
has been activated.
5.3 Errors
5.3.1 Error Code Buffer
The error code buffer contains all errors detected since the last
time the buffer was erased. The buffer is written from left to
right. When an error occurs that is not yet in the error code
buffer, the error is written at the left side and all other errorsshift one position to the right.
The error code buffer will be cleared in the following cases:
By activating the CLEAR ERRORS function in SAM menu.
By transmitting 0-6-2-5-9-9 with the normal RC.
By transmitting the commands DIAGNOSE 99 OK with
the DST (RC7150) or with ComPair.
Automatically reset if its contents has not changed for 50
hours.
By leaving SDM or SAM with the mains switch, the error buffer
is not reset.
Examples:
ERROR: 0 0 0 0 0 0 0 : No errors detectedERROR: 6 0 0 0 0 0 0 : Error code 6 is the last and only
detected error
ERROR: 9 6 0 0 0 0 0 : Error code 6 was first detected and error
code 9 is the last detected (newest) error
CL 36532023_085.eps140403
1 T Y P E : 1 7 P F 9 9 4 5 / 0 1 2 H R S : 0 0 2 9 C S M 1
2 S W I D : L C 0 3 E 2 1 - 1 . 1 1 S 3 1 7 1 . 0 3
3 E R R : 0 0 0 0 0 0 0
4 O P T : 7 9 2 5 4 1 4 5 6 1 2 8 0 0 0
5
6 S Y S T E M : W E S T E U R
7 N O S I G N A L
8 T I M E R O N
9 C H A N N E L B L O C K E D
1 0 N O T P R E F E R R E D
1 1 S O U R C E : 5
1 2 S O U N D : M O N O
1 3 V O L U M E : 2 6
1 4 B A L A N C E : 1
1 5 C O L O U R : 5 0
CL 36532023_086.eps140403
1 T Y P E : 1 7 P F 9 9 4 5 / 0 1 2 H R S : 0 0 2 9 C S M 2
2 S W I D : L C 0 3 E 2 1 - 1 . 1 1 S 3 1 7 1 . 0 3
3 E R R : 0 0 0 0 0 0 0
4 O P T : 7 9 2 5 4 1 4 5 6 1 2 8 0 0 0
56 B R I G H T N E S S : 5 0
7 C O N T R A S T : 5 6
8 H U E : 5 0
9
1 0
1 1
1 2
1 3
1 4
1 5
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Service Modes, Error Messages, and Repair Tips EN 23LC03E 5.
The contents of the error buffer can also be made visible
through the blinking LED procedure. This is especially useful
when there is no picture. See paragraph 5.4 The blinking LED
procedure .
5.3.2 Error Codes
In case of non-intermittent faults, clear the error buffer before
starting the repair, to prevent that old error codes are present
(it is wise to write down the content of the error buffer before
you clear it). If possible check the entire content of the error
buffers. In some situations an error code is only the result of
another error code (and not the actual cause).
Note:a fault in the protection detection circuitry can also lead
to a protection.
Table 5-1 Error codes
TV-Board
Errors
Error 0 = No error
Error 4 = +5V protection. 5V protection active; set is
switched to protection; error code 4 is placed in the error
buffer; the LED will blink 4 times (repeatedly). A 5V failure
can cause a drop in the 5V supply output, resulting in an
undefined behaviour of the set. Therefore, all I2C devices
connected to the 5V supply are constantly monitored.When none of these devices responds to the micro
controller for a prolonged time, the micro controller
assumes that there is a failure in the 5V supply. By starting
up the set with the service jumpers shorted, the 5V
protection is disabled and it is easier to determine the
cause. +5V protection will be activated when these I2C
devices fail (no I2C communication):
Main Tuner 1100 (diagram A3)
ITT sound processor MSP34xx IC-7620 (diagram A8)
Service tips:To isolate the problem area after overriding the
+5V protection, determine whether:
1. The +5V source is working properly IC7930 (diagram A10)
2. ITT sound processor circuit is loading the +5V; isolate coil
5620 (diagram A8)
3. The audio delay IC 7601 - IC7605 is loading the +5V
source; isolate coil 5601 (diagram A7)
4. Main tuner circuit is loading the +5V source; isolate coil
5122 (diagram A3)
Caution: Overriding the 5V protection when there is a 5V
failure can increase the temperature in the set and may cause
permanent damage to components. Do not override the 5V
protection for a prolonged time.
Error 6 = General I2C error. This will occur in the following
cases:
SCL or SDA is shorted to ground
SCL is shorted to SDA
SDA or SCL connection at the micro controller is opencircuit.
Error 8 = BOCMA IC TDA888xx (diagram A4) I2C
communication failure. BOCMA (IC7301 on TV board) is
corrupted or the I2C line to the BOCMA is low or no supply
voltage present at pin 14 (3V3) or no supply voltage at pin
23.
Error 9 = BOCMA IC TDA888xx 8V failure (SUP bit). No
supply voltage at pin 53. Check coil 5302.
Error 10 = NVM I2C error (diagram A1). NVM (EEPROM -
IC7066) does not respond to the micro controller.
Error 11 = Micro controller / NV Memory identification error.
During the last start-up the NVM and the micro controller
did not recognize each other (e.g. one of them was
replaced or the NVM memory has been changed/adapted
or lost), therefore the NVM was loaded with default values. Error 12 = Microprocessor (Painter - IC 7064) internal RAM
test failure.
Error 13 =Main Tuner I2C failure UR13xx. Tuner (item
1100, diagram A3) is corrupted or the I2C l ine to the tuner
is low or no supply voltage at pin 3, pin 6 or 7 of the tuner.
Error 14 =Sound processor I2C error IC7620 (MSP34xx,
diagram A8). Sound controller does not respond to the
micro controller.
Error 15 =SRAM IC CY7C1019 test failure (IC7070,
diagram A2).
Note:Only for Europe and AP-PAL execution.
Scaler Board
When the TV detects critical errors from the Scaler board, it willshutdown into protection mode. After a short period of time, the
LED will blink according to the respective error codes.
Error
code
Error description Possible defective
components
Dia-
gram
0 No error detected - ----
1-3 Reserved
4 5V protection active IC7930 or +5V I2Cdevices A3, A8,A10
5 Reserved
6 General I2C bus er-
ror
I2C bus s/c or o/c
7 Reserved
8 BOCMA I2C error IC 7301 A4
9 BOCMA 8V supply
failure
IC 7910 or IC7301 A4, A10
10 NVM I2C error IC 7066 A1
11 NVM identification
failure
IC 7066 A1
12 uProcessor internal
RAM test failure
IC 7064 A1
13 Tuner I2C error IC 1100 - UR13xx A3
14 Sound processor
I2C error
IC 7620 (MSP34xx) A8
15 SRAM I2C error IC 7070 A2
16 Reserved
17# 3D CF processor
I2C error
IC 7823 B
18-20 Reserved
21 Scaler protection
active
IC 7402 C4
22 Scaler protection
active
IC 7351 C9
23 Scaler protection
active
IC 7302 C3
24* HDTV decoder I2C
error
IC 7252 C10
25 Scaler protection
active
IC 7752 C8
26 Reserved
27 Scaler protection
active
IC 7471 C6
28 Scaler protection
active
IC 7472 C6
29 Scaler uP I2C error IC 7753 or IC 7064 C8, A1
* = Not applicable to Europe execution# = Only for NAF-
TA 23" execution
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Service Modes, Error Messages, and Repair TipsEN24 LC03E5.
Protection errors:
Error 21 = JagASM processor test failure (IC7402, diagram
C4). During start-up of set, the Scaler will do a quick test by
writing data to selective addresses and reading back the
data. If the core supply voltage is too low or data line is
broken, this error protection will be activated. Under these
circumstances, check:
Core supply of 2V5 to VDD pins of JagASM IC.
Clock pulse present at pin 3 of OSC generator item
1401 (diagram C4). Error 22 = Video formatter/converter I2C error IC7351
(GENESIS FLI2300, diagram C9).
Error 23 = Video decoder I2C error IC7302 (Philips
SAA7118E, diagram C3).
Note:BGA IC fixed with a heat sink (see chapter 4 how to
remove).
Error 25 = NVM I2C error (diagram C8). NV memory
(EEPROM - IC7752) does not respond to Scaler micro
controller.
Error 27 = SRAM IC MT48LC2M32B2TG test failure
(IC7471, diagram C6).
Error 28 = SRAM IC MT48LC2M32B2TG test failure
(IC7472, diagram C6).
Non-Protection errors:
Error 24 = HDTV decoder I2C error IC7252 (AD9883,
diagram C10).
Note:This error is NOT applicable to Europe execution.
Error 29 = TV uP IC7064 (diagram A1) and Scaler uP
IC7753 (diagram C8) I2C communication failure. When this
error occurred, there is no display on screen. In order to
read this error code, either activate SDM or press 062501
to read out the error code by blinking LED. Alternatively,
read the error codes out by using ComPair.
5.4 The Blinking LED Procedure
The contents of the error buffer can also be made visible
through the Blinking LED procedure. This is especially useful
when there is no picture.
When the SDM is entered, the LED will blink the contents of the
error-buffer. Error-codes 10 are shown by a long blink of
750msec, which is an indication of the decimal digit, followed
by a pause of 1500msec. followed by n short blinks. When all
the error-codes are displayed, the sequence is finished with a
LED display of 3 seconds. The sequence starts again.
Example:
Error code position: 1 2 3 4 5
Error buffer: 12 9 6 0 0
This gives after activating SDM: 1 long blink of 750msec +
pause of 1500msec + 2 short blinks - pause of 3 s - 9 shortblinks - pause of 3 s - 6 short blinks - pause of 3 s - long blink
of 3 s - etc.
Note:If errors 1, 2 or 4 occur, the LED alwaysblinks the last
occurred error, even if the set is notin service mode.
Another method of reading out a single error code is to use a
standard RC or a DST.
Standard RC - Press 0-6-2-5-0-x in sequence, to read
(blinking LED) out a respective error code in the error
buffer, where x = 1, 2, 3, 4, 5, 6, or 7.
DST: Press Diagnose x OK to read (blinking LED) out
a respective error code in the error buffer, where x = 1, 2,
3, 4, 5, 6, or 7.
5.5 ComPair
5.5.1 Introduction
ComPair (Computer Aided Repair) is a service tool for Philips
Consumer Electronics products. ComPair is a further
development on the European DST (Dealer Service Tool),
which allows faster and more accurate diagnostics. ComPair
has three big advantages:ComPair helps you to quickly get an understanding on how to
repair the chassis in a short time by guiding you systematically
through the repair procedures.
ComPair allows very detailed diagnostics (on I2C level) and is
therefore capable of accurately indicating problem areas. You
do not have to know anything about I2C commands yourself
because ComPair takes care of this.
ComPair speeds up the repair time since it can automatically
communicate with the chassis (when the microprocessor is
working) and all repair information is directly available. When
ComPair is installed together with the SearchMan electronic
manual of the defective chassis, schematics and PWBs are
only a mouse click away.
5.5.2 Specifications
ComPair consists of a Windows based faultfinding program
and an interface box between PC and the (defective) product.
The ComPair interface box is connected to the PC via a serial
or RS232 cable.
The ComPair faultfinding program is able to determine the
problem of the defective television. ComPair can gather
diagnostic information in two ways:
Automatic(by communication with the television):
ComPair can automatically read out the contents of the
entire error buffer. Diagnosis is done on I2C level. ComPair
can access the I2C bus of the television. ComPair can
send and receive I2C commands to the micro controller of
the television. In this way, it is possible for ComPair to
communicate (read and write) to devices on the I2C
busses of the TV-set.
Manually(by asking questions to you): Automatic
diagnosis is only possible if the micro controller of the
television is working correctly and only to a certain extend.
When this is not the case, ComPair will guide you through
the faultfinding tree by asking you questions (e.g. Does the
screen show a picture? Click on the correct answer: YES /
NO) and showing you examples (e.g. Measure test-point I7
and click on the correct waveform you see on the
oscilloscope). You can answer by clicking on a link (e.g.
text or a waveform picture) that will bring you to the next
step in the faultfinding process.
By a combination of automatic diagnostics and an interactive
question / answer procedure, ComPair will enable you to find
most problems in a fast and effective way.
Beside fault finding, ComPair provides some additional
featureslike:
Up- or downloading of pre-sets.
Managing of pre-set lists.
Emulation of the Dealer Service Tool (DST).
If both ComPair and SearchMan (Electronic Service
Manual) are installed, all the schematics and the PWBs of
the set are available by clicking on the appropriate
hyperlink. Example: Measure the DC-voltage on capacitor
C2568 (Schematic/Panel) at the Mono-carrier.
Click on the 'Panel' hyperlink to automatically show the
PWB with a highlighted capacitor C2568. Click on the 'Schematic' hyperlink to automatically
show the position of the highlighted capacitor.
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Service Modes, Error Messages, and Repair Tips EN 25LC03E 5.
5.5.3 How To Connect
1. First, install the ComPair Browser software (see the Quick
Reference Card for installation instructions).
2. Connect the RS232 interface cable between a free serial
(COM) port of your PC and the PC connector (marked with
'PC') of the ComPair interface.
3. Connect the mains adapter to the supply connector
(marked with 'POWER 9V DC') of the ComPair interface.
4. Switch the ComPair interface 'OFF'.5. Switch the television set 'OFF' with the mains switch.
6. Connect the ComPair interface cable between the
connector on the rear side of the ComPair interface
(marked with 'I2C') and the ComPair connector inside the
TV (the ComPair connector (pos.nr.1111) is situated close
to the tuner on the TV Board, see Chassis Overview in
chapter 1).
7. Plug the mains adapter in a mains outlet, and switch the
interface 'ON'. The green and red LEDs light up together.
The red LED extinguishes after approx. 1 second while the
green LED remains lit.
8. Start the ComPair program and read the 'Introduction'
chapter.
Figure 5-5 ComPair Interface connection
5.5.4 How To Order
ComPair order codes (EU/AP/LATAM):
Starter kit ComPair32/SearchMan32 software and
ComPair interface (excl. transformer): 3122 785 90450.
ComPair interface (excluding transformer): 4822 727
21631.
Starter kit ComPair32 software (registration version): 3122
785 60040.
Starter kit SearchMan32 software: 3122 785 60050.
ComPair32 CD (update): 3122 785 60070 (year 2002,
3122 785 60110 (year 2003).
SearchMan32 CD (update): 3122 785 60080 (year 2002),
3122 785 60120 (year 2003).
ComPair interface cable: 3122 785 90004.
ComPair firmware upgrade IC: 3122 785 90510 (only for
sets with software upgrade facilities).
Transformer Europe: 4822 727 21632.
Transformer UK: 4822 727 21633.
Note:If you encounter any problems, contact your local
support desk.
5.6 Trouble Shooting Tips
5.6.1 Scaler/TV Board Power Supply Problems
In this paragraph some troubleshooting steps for checking the
power supply of the Scaler-board and TV-board circuitry are
described.
Measure across pin-1 and pin-4 of connector 1003(diagram C1). +12V (15 and 17) or +24V (23) should be
present. If the voltage is not present, probably is caused
by:
AC to DC adaptor is defect.
Short circuit in TV-board (can be isolated by connector
1003).
Fuse 1002 is open circuit.
Measure across C2923 (diagram A10). +3V3 should be
present. If not present, probably this is caused by:
IC7920 is defective.
R3925 is defective.
The power supply circuit (diagram C1) is defective (see
Scaler-board circuit trouble shooting tips).
Measure R3017 or R3085 (diagram A1) with oscilloscope.
There should be I2C activity. If no activity is present, thisprobably is caused by:
IC 7064 micro-P is defective.
The I2C clock line or data line is grounded. (LED
should blink indicating SW protection is active).
The IC 7064 reset circuit consisting of T7063, T7067
and T7069 and its surrounding components are
defective.
Measure pin-19 of connector 1010 (diagram A1). The
standby signal should be high (2V9). If not high, probably
this is caused by:
IC 7064 micro-P is defective (output port pin-13).
Transistor 7062 is defective.
Measure across C2913/C2933 (diagram A10). +8V3/+5V4
should be present respectively. If not present, probably this
is caused by: IC 7910/7930 regulator is defective.
Fuse 1903 is defective.
Switching FET 7900 is defective.
Transistor T7901 is defective.
Measure across C2007 (diagram C1). +5V should be
present. If not present, probably this is caused by:
+5V grounded by the load.
Regulator IC 7001 is defective.
Control transistor T7003/7002 is defective.
Scaler power control signal line (POW-CON-SCALER
coming from TV-board) is defective.
Measure pin-4 or pin-5 of connector 1402 (diagram C4).
Pin-4 should be high (+4V7) and pin-5 also should be high
(+3V4). If one/both of the voltage is not present, probably
this is caused by: IC 7402 (JagASM) is defective.
Transistor 7403 is defective.
Inverter board is defective.
Measure pin-4 or pin-5 of connector 1402 (diagram C4).
Pin-4 should be high (+4V7) and pin-5 also should be high
(+3V4). If one/both of the voltage is not present, probably
this is caused by:
IC 7402 (JagASM) is defective.
Transistor T7403 is defective.
Inverter board is loading either of the voltage.
CL36532000_000.eps
011003
PC VCR I2CPower9V DC
SERVICE
CONNECTOR
LCD PANEL
SpeakerassyR
SpeakerassyL
ToLCD
To
Inverter
ComPair
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Service Modes, Error Messages, and Repair TipsEN26 LC03E5.
5.6.2 General Problems
TV switched off or changed channel without any user
action
Set switches off after TV SWITCHING OFF was displayed.
Auto Standby switched the set off because:
There was no ident signal for more than 15 minutes.
There was no remote control signal received or local key
pressed for > 2 hours.
See chapter 8 for a description on the options to enable/disable
Auto Standby.
5.6.3 Picture Problems
Picture too dark or too bright
Press Smart Picture button on the remote control. In case
the picture improves, increase / decrease the brightness
value or increase / decrease the contrast value. The new
Personal Preference value is automatically stored after 3
minutes.
After switching on the Customer Service Mode the picture
is OK. Increase / decrease the brightness value or increase
/ decrease the contrast value. The new PersonalPreference value is automatically stored after 3 minutes.
Snowy picture
Check the NOT TUNED section of the Customer Service
Mode screen.
Snowy picture and/or unstable picture
A scrambled or decoded signal is received.
Black and white picture
Press Smart Picture button on the remote control. In case
picture improves, increase the colour value. The new
Personal Preference value is automatically stored after 3
minutes. After switching on the Customer Service Mode the picture
is OK. Increase the colour value. The new Personal
Preference value is automatically stored after 3 minutes.
Menu text not sharp enough
Press Smart Picture button on the remote control. In case
the picture improves, decrease the contrast value. The new
Personal Preference value is automatically stored after 3
minutes.
After switching on the Customer Service Mode the picture
is OK. Decrease the contrast value. The new Personal
Preference value is automatically stored after 3 minutes.
5.6.4 Sound Problems
No sound or sound too loud (after channel change /
switching on)
After switching on the Customer Service Mode the volume is
OK. Increase / decrease the volume level. The new Personal
Preference value is automatically stored after 3 minutes.
5.6.5 Extra Information/Tips:
Complaints that may be caused by an incorrect system
setting:
No colours
Colours not correct
Unstable picture
Noise in pictureTo change the system setting of a preset:
1. Press the MENU button on the remote control
2. Select the INSTALL sub menu
3. Select the MANUAL STORE sub menu
4. Select and change the SYSTEM setting until
picture and sound are correct
5. Select the STORE menu item
When the set is in PC mode and there is no VGA signal
present at PC-in connector, the set will shutdown to
standby in couple of seconds after showing NO VIDEO
INPUT. This is a normal behaviour of the set to safe
power.
The Scaler is the driving engine of the LCD panel. When
there is no display and OSD on screen, check whether
sound is producible on TV channel. If sound is audible,
most likely the defective lies in Scaler board or inverterboard.
To know fast whether inverter is functioning, visually check
if the backlights are on by looking at the back of the LCD
panel. Some bright spots can be seen on the side. Other
way to tell whether the backlight is working is to switch the
set to AV mode. The front of the screen had some kind of
fogged effect.
Note:when one of the backlight connectors has loosened,
the inverter circuit will be shut down.
If the supply to the LCD panel is OK (likewise for backl ight
supply), but no data signals (example: signals on
connector 1506) supplied from Scaler to LCD panel, you
will notice that the LCD screen will shown full screen in
sequential of BLUE, GREEN, RED, BLANK, dark-GREY,
light-GREY and WHITE repeatedly. It means LCD panel isin good condition. The fault lies in the Scaler board
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28LC03E 6.Block Diagrams, Testpoint Overviews, and Wiring Diagram
Block Diagram (TV Control and Inverter Panel)
90
1 98
2
4
5
6
8
SDA-NVM
STATUS2_SVHS-RR-DET
STATUS1 (SCART)
KEYBOARD
9
10
13
14
15
16
STAND-BY +3V5
100
97
96
93
92
91
90
PC-TV-LED
HP-SIDE-DET
HIS-OFF
SOUND-ENABLE
89
88
85
86
87
84
82
81
83
80
79
SDA-0
SCL-0
78
76
75
73
70
17
18
22
23
24
25
26
27
28
29
31
32
33
36
37
38
39
40
45
46
47
48
49
67
66
65
64
63
59
55
54
5352
51
SYS1
SYS2
STBY-LED
CVBS-TXT-CC
G-SC1-IN_Y-IN
+3V5
B-TXT-OSD
G-TXT-OSD
R-TXT-OSD
HS-OSD
FBL-TXT-OSD
SEL-MAIN-R1R2
SEL-IF-LL_M-TRAP
+3V5
RC5
+3V5
30567053-A
VS-OSD30557053-B
SDA
SCL
A8
7066
NVM
A(14)
OENOT
WENOT
A(7)
A(6)
A(5)
A(4)
A(15)
A(13)
A(12)
CENOT
A(3)
A(2)
A(1)
A(0)
IO7
IO6
IO5
IO4
IO3
IO2
IO1
IO0
A(8)
A(10)
A(11)
A(16)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
171819202122232425262728303132
A(16)
A(15)
A(14)
A(13)
OENOT
IO7
IO6
IO5
IO4
IO0
A(11)
A(10)
A(9)
A(8)
A(7)
A(6)
A(5)
A(4)
WENOT
IO3
IO2
IO1
CENOT
A(3)
A(2)
A(1)
A(0)
7070
+3V5
FOR 100 PAGESTELETEXT ONLY
A 1 CONTROLS
7064 7
5
+3V5
A 2 MEMORY
CLOCK12MHZ
SCL-NVM
LIGHT-SENSOR_SDM
7062
NC
TV-IRQ
3037
PC-VSYNC
COMM-LINE
44SVHS-SIDE-DET
POWER-DOWN
3068
3034
7068
SEL-MAIN-FRNT-RR94
7022302995
COMM-LINE
A(12)+3V5
29
6
22
20
19
17
16
TO/FROM1681 OF
SCALER BOARD
14
13
12
10
9
7
5
3
1
PC-HDAUDIO-L
PC-HDAUDIO-R
STAND-BY
PC-HSYNC
PC-VSYNC
SDA-1
TV-IRQ
SCL-1
VS-OSD
HS-OSD
C-SYNC
B-DRIVE
G-DRIVE
R-DRIVE
A8
A5
A4
A4
A4
WC_
A11
A11
A9
A5
A5
A9
A4
A4
A4
A4
A11
A11
A6
A11
A6
A6
A11
A11
A11
A4
A10
A5
A5
307270697063
2043
6031
2057
7067
3070
3071
3083
3081
3082
(NOT FOR NTSC & LATAM)
VCC
A11
(SCART)
C 2
A(9)
8
V-SYNC
H-SYNC
A4
A5
Version 1.2 Final 03-03-19
1010
+
-
+12V
+5V
Vbri
ON/OFF
INVERTER (AMBIT)
ONLY FOR 15" & 17"
TO/FROM1402 OFSCALER
C 4
R10
U1D
L1
D3,8
Q8
C4,5R8
C3
Q2
Q1
R1 R5
R3
R4
3
12
10
11
13
CN1 6,7,8
1,2,3
4
5
F1
Q4-Q6
R7
D1,Q3
R6
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30LC03E 6.Block Diagrams, Testpoint Overviews, and Wiring Diagram
I2C-ICs and Error Codes Overview
30853047
SDA-0
SCL-0
+3V5
SDA-1
SCL-1
A1
82
7064
SAA5667
U-CONT
IF-VIDEOA4
301781
uPC8
37534
37547
3
2
IIC SDA
IIC SCL
3771
3770
11
13
RXD
TXD
RXD
TXD
RXD
TXD
3018
+3V5
3048
3769
+5
+5
+5
3768 3752
+5+5
3751
84
301983
12
15
3332
18
3331
17
7301TDA8845
BOCMA
VIDEOPROC.
ERR8
TUNERA3
PC-INC7
SRAMA2
3101
5 4
3100
1100TUNER
UR1316
7753PC251
uCSCALER
ERR13
7202M24C02-WMN6
EEPROM
720174HC4052D
DDCCTL
AUDIOPROCESSING
A8 COMBFILTER
A6
3621
2 1
3620
7620MSP3410G
AUDIODECODER
ERR14
VIDEODECODER
C3
3327
P10 N9
33
7302SAA7118E
VIDEODECODER
ERR23
5 6
7752M24C16
NVM
ERR25
ERR
29
SDA-NVM
SCL-NVM
+3V5
3064 3065
DDC5V
3212 3211
3
13
2
15
1
12
TXD
RXD
DDCSDA
DDCSCL
1
78
7066M24C32(NVM)
EEPROM
ERR10,11
ERR12,29
ERR15
5 6
7070CY7C1019CV33
SRAM
Err
3216
3215
IIC
510
6
15
1 1
1
COMPAIR
CONNECTOR
FOR SERVICE
(REACHABLE VIA
HOLE IN REAR
COVER)
FORDEBUGGING
PURPOSE
11111
2
3
1426
5
6
1751
1
2
+3V3
3
4
5
B
1801CONNECTIONFOR3D COMBFILTER(OPTIONAL)
5
6
A1
1010
14
12
C2
1681
14
12
RESET
IIC SDA
FOR
DEBUGGINGPURPOSE
1752
1
2
IIC SCL
3
4
Error
0 1 - 3 4
5 6
7 8 9
1 0 11
12
13 14
15 16 17#
18 -21
22
23
24*
25
26 27
28
29 * = No
# = O
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34LC03E 6.Block Diagrams, Testpoint Overviews, and Wiring Diagram
Testpoint Overview Scaler Board
3139 123 5680.3
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36LC03E 6.Block Diagrams, Testpoint Overviews, and Wiring Diagram
Wiring Diagram (15/17)
J Front LEDPanel1170_7P
A TV Board
1902
_4P
1010
_22P
C
1003
_4P
1681
_22P
1506_40P
1402
_8P
Scaler Board
IN
CN1
_8P
CN3_2P CN2_2P
CN4_2P CN5_2P
InverterPanel
D
0240
_11P
Side I/O Panel
E Top Control Panel1500_4P
RightSpeaker
TO LCD PANEL
TO
BACK
LIGHT
S
TO
BACK
LIGHTS
LCD PANEL
Wiring Diagram 15" & 17"WS
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Block Diagrams, Testpoint Overviews, and Wiring Diagram 37LC03E 6.
Wiring Diagram23 Inch Wide Screen
Right Speaker
J Front LEDPanel1170_7P
A TV Board
1231
7P
3225
11P
1234
4P
1111_3P
ComPair
1734_3P
1902_4P
1010_22P
C
1003_4P
1681_22P
1506_40P1402_8P
Scaler Board
E Top Control Panel1500_4P
TO LCD PANEL
TO
BACK
L
IGHTS
LCD PANEL
Wiring Diagram 23"WS
D Side I/O Panel
1732_4P
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Circuit Diagrams and PWB Layouts 39LC03E 7.
TV Board: Memory for 100-pg Teletext
VCC
DQ
16
7
128K-10
A
12
CEWE
1413
11109876543210
150
OE
VSS
MEMORY FOR 100-PG TELETEXT
3V3
3V3
3V3
3V3
3V5
0V3V3
0V
0V
3V5
3V40V
0V
0V0V
0V
0V0V3V3
0V
3V33V3
3V3A1
A1
A1
0V
0V
0V
0V
0V
(COMMON FOR EUROPE & AP-PAL)
3V5
1 2
1 2
A
B
C
A
B
C
2060 A1
2061 A2
5050 A2
7070 A2
1122232627
28
8 24
9 25
12
131415161718
5
6710
2
19202129303132
34
7070CY7C1019CV33
128Kx8RAM
1
100n2060
100n
+3V5
4u75050
2061
IO(4)IO(5)IO(6)IO(7)
A(0)
A(10)A(11)A(12)A(13)A(14)A(15)A(16)
A(2)A(3)A(4)A(5)A(6)A(7)A(8)A(9)
CENOT
WENOTOENOT
A(1)
IO(0)IO(1)IO(2)IO(3)
CL 36532023_005.eps150403
DIVERSITY TABLE DIAGRAM A1 AND A2
Item# Europe-/
12
Europe-/
58
NAFTA
AP-/
69
AP-N
TSC-/
61
La
tam
Component type20 60 - - - - -- C ER 2 06 03 X 7R 16 V 1 00 N C OL20 61 - - - - -- C ER 2 06 03 X 7R 16 V 1 00 N C OL30 28 - - - - - - R ST S M 0 60 3 47 K P M5 C OL
30 29 - - - - - - R ST S M 0 60 3 10 K P M5 C OL30 32 - - - - - - R ST S M 0 60 3 10 K P M5 C OL30 49 - - - - - - R ST S M 0 60 3 10 K P M5 C OL30 94 - - - - - - R ST S M 0 60 3 10 K P M5 C OL5 05 0 - - - - - - FXDIND S M 0 80 5 4 U7 P M1 0 COL R60 20 - - - - - - D IO S IG S M BA S3 16 ( CO L) R70 22 - - - - - - T RA S IG S M BC 84 7B W ( CO L) R7 06 4 - - - - - - IC S M S AA 56 67 HL /M1/ ( PHSE ) Y7064 - - - - - - - - - - IC SM SAA5645HL/M1 (PHSE) Y7 06 4 - - - - - - - - IC S M S AA 56 47 HL /M1 (P HS E) Y7 07 0 - - - - - - IC S M CY7 C1 01 9CV3 3- 15 ZC(CYP R) R
V V VV V VV V V
V V VV V VV V VV V VV V VV V VV V VV V V
V VV
VV
V
Personal Notes:
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44LC03E 7.Circuit Diagrams and PWB Layouts
TV Board: Audio Delay Line
C2
G1
1+
CT=0
CTR8
(CT=255)Z4
2D 3
4
EN3
EN
C1
1D
C2
G1
1+
CT=0
CTR8
(CT=255)Z4
2D 3
4
EN3
2V6
2V6
2V6
2V6
2V6
5V3
5V3
2V6
2V5
2V3
2V6
(1) NOT USED
(1)
(1)
(1)
2V6
2V6
DF
3
A
5V3
B
C
D
5V3
5V3
2V6
F
DFF
(COMMON)
E
2V3
2V3
AUDIO DELAY LINE
41 2 3
COUNTER
2V6
2
2V3
2V6
5 6 7
1
2V5
2V5
5V3
2V5
2V5
2V5
2V3
2V3
5V3
2V5
2V5
COUNTER
2V3
0V2
5V3
4 5 6 7
2V6
2V6
2V6
GNDDIGITAL
2604
100n
4601
+5VD
2
3
4
5
6
7
13
9
VCC16
7602
TC74HC590AF
11
12
10
GND8
14
15
1
11
I|O1
12
I|O2
13
I|O3
15
I|O4
16
I|O5
17
I|O6
18
I|O7
19
OE
_
22
VCC2
8 W
E_
27
+5VD
6A11
7A12
8A13
9A14
10
A2
24
A3
25
A4
26
A5
1A6
2A7
3A8
4A9
5
CE
_
20
GND 1
4I|O0
GNDDIGITA
7603CY62256
A0
21
A1
23
A10
GNDDIGITAL
+5VD
+5V4
BC847BW7610
GNDDIGITAL
GNDDIGITAL
4602
GNDDIGITAL
GNDDIGITALGNDDIGITAL
GNDDIGITAL
VCC16
12
10
GND8
14
15
1
2
3
4
5
6
7
13
9
+5VD
+5VD
7601
TC74HC590AF
11
2610
82pGNDDIGITAL
3610470R
100n
2603
4603
4605
GNDDIGITAL
100n
2601
GNDDIGITAL
GNDDIGITAL
GNDDIGITAL
5601
1u0
F612
+5VD
100n
+5VD
GNDHOT
2602
+5VD
4606
GNDDIGITAL
GNDDIGITAL
15
14
13
12
20
F613
7
8
9
10
11
1
19
18
17
16
2
3
4
5
6
74HCT573D7604
5
6
7
8
9
11
1
7605
2
3
4
F601
74HC
GNDDIGITAL
82p2611 3611
47K
4604
GNDDIGITALGNDDIGITAL
F602
2V / di2ms /
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46LC03E 7.Circuit Diagrams and PWB Layouts
TV Board: Audio Amplifier 2x3 Watts (15/17)
F732
50
10u2750
2V9
0V7
0V
3V5
YES
YES
11V8
RES
A1
ITV
A8
A8
6V1
(15"/17")
4740
2V9
A8
A10
*
47391750*
*
XX
*
XMTV
AUDIO AMPLIFIER 2x3 Watts
3V5
3V3
X
A11
4 5 6 7
0V
1 2 3 4 5 6 7
1 2 3
X
B
A
YES QUAD 2-INPUT AND GATE
47384737
1V4
2V7
X
YES
RES
YES
3V5
*
YES
6V1 *
A1
3V3
A11
1752
A11
2V9
1V4
*
3V5
5V3
2V3
3V5
6V2
3V5
37416K8
FOR ITV
HMLINK
A11A11
6V1
C
D
E
F1K0
3743
BC847BW7744
1K0
3759
1n0
2735
27K
3735
10K
3757
2734
2752 10u
50
16V1m0
120R3750
4
3 6
1702
SPPH4
2 5
1
27571n51n5
275627581n5
1u0
2736
220K
4737
3732
573322u
4739
F731
F735
+3V5
3755100R
12-24DC-SUP_1
37567732-C74LCV08AD
9
108
14
7
1752
1750
F743
BZX284-C6V86732
1u0
2741
YKC21-34161733
1
3
2
GNDEARTH
CH2-IN
3GNDCH1
11GNDCH2
7GNDINP
5
STB
1
VCC
9 VOL
2CH1+
4CH1-
6 CH1-IN
12CH2+
10CH2-8
14
7
7731AN7522N
7732-D74LCV08AD
12
1311
1n52754
50V100u2745
50V10u2732
27424n7
1K0
3746
GNDHOT
2740
1n0
234
56
12321
4738
27K
3740
3
14
7
3K33745
7732-A74LCV08AD
1
2
27551u0
2746
2737
50V1u0
4n7
F755
4740
BZX284-C6V86731
3733
+3V5
7756BC847B
4
56
14
7
1730
7732-B74LCV08AD
F740
220n2733
33n
2731
BAS316
6755
F745
470R3752
4K73744
37584K7
+3V5
37366K8
POWER-DOWN
STAND-BY
LED_IN
STBY-LEDSTATUS
IR_OUT
IR_IN
AUD_SW
SOUND-ENABLE
AUDIO-L
AUDIO-R
A9a
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Circuit Diagrams and PWB Layouts 47LC03E 7.
TV Board: Audio Amplifier 2x5 Watts (23)
ATT.CON
RIPPLE
ATT.
FILTER
AUDIO AMPLIFIER 2x5 WattsA9b
6V
3V7
6V2
2V9
0V3
5V2
6V1
*
*
*
*
RES
RES
*
*
A1
A10
A1
A8
A8
A8
QUAD 2-INPUT AND GATE
(23")
A11A11
A11A11
A11
FOR ITV
NC
NC
HMLINK
0V
3V5
0V
0V73V5
2V3
2V9
2V3
2V9
3V5
3V5
2V3
5V3
3V5
3V5
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
A
B
C
D
E
F
RES
RES
27971n0
1n02796
2798220n
12-24DC-SUP_1
BC847BW7745
1K0
3746
4K7
3745
6732
BZX284-C6V86731
BZX284-C6V8
1730
27441n5
2743
2747
1n5
+3V5
33n
1K0
3739
BC847B7739
50V100u2799
50V330u2739
GN
50V330u2738
12321234
5
6
1 4
3 6
1702
SPPH4
2 5
YKC21-34161733
1
3
2
1u0
2741
1u0
2736
5733
22u
F735
F740
+3V5
4K73744
BC847BW7744
F743
F759
F755
3755100R
F731
F745
F732
50V1u02746
4740
+3V5
1K0
3743
7732-D74LCV08AD
12
1311
14
7
6
14
7
7732-C74LCV08AD
9
10
8
14
7
1
23
14
77732-B
74LCV08AD4
5
1752
7732-A74LCV08AD
1750
8K2
3748
4K73747
25V100u
2745
BAS316
6755
+3V5
27551u0
7756BC847B
3756 10K
3757
1K0
3759
1K0
3761
37584K7
4K73760
470R3752
470R3750
4738
4739
9
GNDO
8
MUTE
1
NC1
6
NC2
3
RF
11
STBY
10
VCC
2
CH1I
12
CH1O
5
CH2I
7
CH2O
4
GNDI
7731AN5277
35V1m02734
50V10u2732
12-24DC-SUP_1
2740
2735
3733
2737
27423n3
18K
3740
3n3
18K
3735
37413K3
37363K3
3799
220K
LED_INIR_INSTBY-LEDSTATUS
IR_OUT
AUDIO-L
SOUND-ENABLE
POWER-DOWN
STAND-BY
OU
AUDIO-R
AUD_SW
HP-
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48LC03E 7.Circuit Diagrams and PWB Layouts
TV Board: Local Supply
REGULATORREFERENCE
OSC
IPK
Q
R
S
REGULATORREFERENCE
OSCIPK
Q
R
S
REGULATORREFERENCE
OSC
IPK
Q
R
S
LOCAL SUPPLY
100MHz 220R
1%
1%
1%
1%
1%
1%
RES
RES
RES
RES
RES
RES
A9
A1,A9
FROM/TO
(COMMON)
11V9
2
3
1
11V9
6V
0V
2V9
0V5
0V
2V3
11V
11V1
1V3
11V
3V6
0V7
11V7
11V8
1V2
0V7
5V5
11V7
11V7
11V8
1V2
11V7
8V4
0V7
1 2 3 4 5 6 7
1 2 3 4 5 6 7
A
B
C
D
E
F
1003 OFSCALER PNL
STAND-BY
POWER-DOWN
100n
3
4
2922
1902
1
2F902
F901
12-24DC-SUP
F900
12u
5900
2934 4n7
2912
4n72924
4n72914
1903
F1600mA
3925
10R
F908
SS14
6925
F906
F9073933
F903
3K3
+3V5
BC847B7904
BC847B7903
290310n
390622K
3905220K
15K3903
3TIMC
6VCC
220K3904
MC34063A
7920
5 CIN-
8 DCOL
4GND
7 IS
1SWC
2SWE
MC34063A
7930
5 CIN-
8 DCOL
4GND
7 IS
1SWC
2SWE
3TIMC
6VCC
MC34063A
7910
5 CIN-
8 DCOL
GND 4
7 IS
1SWC
2SWE
3TIMC
6
VCC
5931220u
39151R0
2933470u10V
3932
1K
1K3924
1K8
6.3V1m0
3923
25V470u
2923
2913470u
2920
470u25V
16V
3920
2910
3910
2932
5901
2900
+3V
+8V
+5V
PDTC114ET
7901
12-24DC-SUP_1
3900
1K
1K
3901
SS146930
470p2931
3930
1R0
33u
59301R0
6920
3931
5921
SS14470p2921
220u
39211R0
3914
5K6
3922
SS143913
1K
5911 6910470p2911
220u
39111R0 1R0
3912
F906 = 8V3 DC
F907 = 5V4 DC
F908 = 3V5 DC
Item# 24VDC-in
23"
12VDC-in
15"/17"
Component type2900 -- CER2 0603 Y5V 50V 100N P80202900 -- CER2 0603 Y5V 25V 100N COL2910 -- ELCAP 25V S 470U PM20 COL2910 -- ELCAP 35V S 470U PM20 COL2920 -- ELCAP 25V S 470U PM20 COL2920 -- ELCAP 35V S 470U PM20 COL3930 -- RST SM 0603 1R PM5 COL3930 -- RST SM 0603 2R2 PM5 COL7900 -- FET SIG SM SI2301DS (VISH) R7900 -- FET POW SM SI2307DS (VISH)
V
V
V
V
VV
V
V
VV
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Circuit Diagrams and PWB Layouts 51LC03E 7.
Layout TV Board (15/17) (Part 1 Top Side)
Part 1
-
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52LC03E 7.Circuit Diagrams and PWB Layouts
Layout TV Board (15/17) (Part 2 Top Side)
Part 2
-
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Circuit Diagrams and PWB Layouts 53LC03E 7.
Layout TV Board (15/17) (Part 3 Top Side)
Part 3
-
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54LC03E 7.Circuit Diagrams and PWB Layouts
Layout TV Board (15/17) (Part 4 Top Side)
-
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56LC03E 7.Circuit Diagrams and PWB Layouts
Layout TV Board (15/17) (Part 1 Bottom Side)
Part 1
-
8/13/2019 LC03
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Circuit Diagrams and PWB Layouts 57LC03E 7.
Layout TV Board (15/17) (Part 2 Bottom Side)
CL
Part 2
-
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58LC03E 7.Circuit Diagrams and PWB Layouts
Layout TV Board (15/17) (Part 3 Bottom Side)
Part 3
-
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Circuit Diagrams and PWB Layouts 59LC03E 7.
Layout TV Board (15/17) (Part 4 Bottom Side)
Part 4
-
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-
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-
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62LC03E 7.Circuit Diagrams and PWB Layouts
Layout TV Board (23) (Part 2 Top Side)
Part 2
-
8/13/2019 LC03
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Circuit Diagrams and PWB Layouts 63LC03E 7.
Layout TV Board (23) (Part 3 Top Side)
Part 3
-
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-
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-
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66LC03E 7.Circuit Diagrams and PWB Layouts
Layout TV Board (23) (Part 1 Bottom Side)
Part 1
-
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-
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68LC03E 7.Circuit Diagrams and PWB Layouts
Layout TV Board (23) (Part 3 Bottom Side)
Part 3
-
8/13/2019 LC03
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Circuit Diagrams and PWB Layouts 69LC03E 7.
Layout TV Board (23) (Part 4 Bottom Side)
Part 4
-
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Circuit Diagrams and PWB Layouts 71LC03E 7.
Scaler Panel: I/O & Interface
I/O & INTERFACE
TO1010OFLCD-TVBOARD
C10
C10
C1
C7
C7
C8
C8
C8
C3
C3
C3
C3
C3
C3
0V
0V
2V9
0V
0V
4V8
5V
4V8
0V
0V5
0V6
0V6
0V6
0V6
1 2 3
1 2 3
A
B
C
D
A
B
C
D
1681 A3F681 A2F682 A2F683 A2F684 B2F685 B2F686 B2F687 B2F688 B2F689 C2F690 C2F691 C2F692 C2F693 D2F694 D2
F693
F694
F692
F690
F691
F688
F689
F687
F685
F686
F684
F682
F683
F681
21
22
3
4
5
6
7
8
9
1
10
11
12
13
14
15
16
17
18
19
2
20
1681
MAIN_GND
HS-OSD
VS-OSD
PC-VSYNC
B-Pb
PC-HSYNC
SCL-1
SDA-1
TV-IRQ
POW-CON-SCALER
PC_HDAUDIO-L
AV-CVBS
R-Pr
G-Y
PC_HDAUDIO-R
CL 36532023_016.eps061003
F689
1V / div DC5ms / div
F690
1V / div DC20s / div
F691
200mV / div DC20s / div
F692
200mV / div DC10s / div
F693
200mV / div DC10s / div
F694
200mV / div DC10s / div
3139 123 5680.3
Personal Notes:
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72LC03E 7.Circuit Diagrams and PWB Layouts
Scaler Panel: Video Decoder
RAW S
YCBCR
YCBCR
YCBCRS
CBCR
CBCR
RAW
BCS-SCALER
VDDA VDDE VDDI
VSSA VSSE VSSI
IIC REGISTER MAP
R
COMB
PROCCHROM
PROCCOMP
DELAYSWITCH
FAST
VIDEO
DECODEROUTPUTCON
TROL
BOUNDARYSCAN
O U T P U T F O R M A T T E R I P O R T
1ST TASK IIC REG MAP SCALER
SCALER EVENT CONTROLLER
VIDEO/TEXTARBITER
TEXTFIFO
VBI DATASLICER
ANALOG1
+ADC1
VIDEOFIFO
VERTICALSCALIN
G
HORIZONTALFIN
E-
(PHASE-)SCALIN
G
LINEFIFOBUFFE
R
FIR-PREFILTER
PRESCALER
ANALOG1
+ADC1
ANALOG1
+ADC1
GB
Y
S
C
CLKGPO
XTAL
SS
Y
CR
CB
CBCR
Y
AUDIO
CLK
H-PORTX-PORT
2ST TASK IIC REG MAP SCALER
SYNC
PROCLUM
FIL
ANALOGINPUTCONTR
OL
AD-PORT CONTROL
ANALOG1
+ADC1
IN OUT
ADJ
2 3 4 5 6 7 8
A
C
D
NC
NC
NC
NC
E
F
(R)
RES
B
NC
NC
VIDEO DECODER
NC
NC
1V6
0V5
1V7
1V5
1V6
0V