DAEWOO DN-K538 Service Manual

8/13/2019 DAEWOO DN-K538 Service Manual

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Daewoo DN-K538 Service Manual

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Daewoo DN-K538 Service manual

Table of Contents

page

General Section . 2

Cautions/Warnings

Safe Warnings

Precautions

Software Upgrade

Circuit Diagram and Component Layout 5

MPEG IC Block Diagrams

Power supply Circuit Diagram and Component LayoutMPEG Circuit Diagram and Component Layout

Front panel Circuit Diagram and Component Layout

Servicing Procedures . 35

Power Supply Trouble Service Flow Chart

Read Disc Trouble Service Flow Chart

Video Trouble Service Flow Chart

Digital Audio Trouble Service Flow Chart

Front Control Trouble Service Flow Chart

Remote Control Trouble Service Flow Chart

Parts List.. 43

Power parts list

Front panel parts list

MEPG parts list


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1. General Section

1.1. Cautions/Warnings

1.1.1. Product Safety Notice

Parts marked with the symbol in the schematic diagram have critical

characteristics.Use ONLY replacement pares recommended by the manufacturer. It is

recommended that the unit be operated from a suitable DC supply or

batteries during initial check out procedures.

1.1.2. Leakage Current Check/Resistance Check

Before returning the unit to the customer, make sure you make either (1)

a leakage current check or (2) a line to insulated resistance check.

If the leakage current exceeds 0.5 milliamps, or if the resistance from

chassis to either side of the power cord is less than 240 K ohms, the unit

is defective.

WARNING: DO NOT return the unit to the customer until the problem or

located and corrected.

1.2. Safe Warnings

1.2.1. Protection of Eyes from Laser Beam

To protect eyes from invisible laser beam during servicing

DO NOT LOOK AT THE LASER BEAM


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1.2.2. Laser Caution

CAUTION

Adjusting the knobs, switches, and controls, etc. or taking actions not

specified herein may result in a harmful emission of laser beams. This

CD Changer must be adjusted and repaired only by qualified servicepersonnel.

Laser symbol:

THIS IS COMPACT DISC PLAYER IS CLASSIFIED AS A CLASS 1 LASER PRODUCT.THE LASS 1 LASER PRODUCT LABEL IS LOCATED ON THE REAR EXTERIOR.

1.3. Precautions

1.3.1. ESD Precautions in Repairing

1.3.1.1. Do not apply excessive pressure on the mechanical parts

(moving pares), including the Pickup Block, as extremely high

mechanical precision or required in these parts.

1.3.1.2. When soldering the microprocessor and signal processing ICs,

use a ceramic soldering iron or a soldering iron whose metal part

is grounded since they are not resistant to static electricity.

1.3.1.3. When removing the solder or soldering the laser shorting lands

for the Pickup Block, use a ceramic soldering iron or a soldering

iron whose metal part is grounded since the laser diode or not

resistant to static electricity.

1.3.2. DVD Loading Unit Precautions when handling the Mechanism Block

1.3.2.1. Do not loosen any screws in the Pickup Block.

1.3.2.2. Do not adjust any screws in the Mechanism Block except for Tilt


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Adjust Screws, as they are adjusted precisely at the factory.

1.3.2.3. Replacement of the Pickup Block is impossible. Always replace

the Traverse Assy when the Pickup Block needed to be replaced.

Do not touch the lens or lens holder of the Pickup Block.

1.3.2.4. The Guide Rails of the Pickup Block are greased. Take care

when handing.1.3.2.5. When you try to slide the Pickup Block, do not press or pull it

directly. Always turn the dive gears with your fingers.

1.3.2.6. Be sure that the anti-slipping rubber on the turntable or clean. If

there is dust or it is greasy, clean the part with the liquid that

contains 50% each of alcohol and water.

1.3.2.7.When removing the Mechanism P.C.B. Assy, you need to

short-circuit the laser diode shorting lands beforehand.

1.4. Software Upgrade

You can upgrade DVD Player using the software we provide as following step:

Creating a software upgrade CD

Use only a new CD-R/CD-RW(not an erased one).

Give the CD a name of your choice(e.g. version and unit name).

Burn the unpacked documents on the CD-R/CD-RW.

The root directory(uppermost level) of the software upgrade CD

Attention: If a failure should occur during the software upgrade (e.g. a mains failure), it may

happen that the units function and a restart of the upgrade function are no longer possible. If this

should be the case, you must replace the intergraded FLASH ICs with preprogrammed ICs (see

corresponding spare parts list).

Insert the upgrade CD (see corresponding spare parts list) and observe the hints on the display

and on the screen of the TV set.

Carry out an initialization of the set.

Displaying the Software Version Number

Press one after the other the STOP and EJECT buttons on the unit.

Press theOSD with the remote control.

Using the cursor buttons on the remote control, select the software version MICRO Version

or CUSTOMER VERSION .The respective software version number then is displayed


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2. Circuit Diagram and Component Layout

2.1. MPEG IC Block Diagrams

Fig. 2-1 ZR36962


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Fig. 2-2 DRC block diagram

Fig.2-3 Vaddis ZR36962/966 block diagram


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Table1. Vaddis 962 Pin`s operational function description


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2.2.1Power supply Circuit Diagram and Component Layout (Philip)

Fig 2-1 Power Supply Circuit Diagram


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Fig2-2 Power Supply Assembly Drawing


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Fig 2-3 Power Supply Composite


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2.2.2Power supply Circuit Diagram and Component Layout (VIPPER 22A )

Fig 2-4Power Supply Circuit Diagram


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Fig2-5 Power Supply Assembly Drawing


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Fig 2-6Power Supply Composite


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2.3.MPEG Circuit Diagram and Component Layout

2.3.1MPEG Circuit Diagram

Fig 2-7 ZR36962 &SDRAM

Fig 2-8RF AMPLIFIER&DRIVER


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Fig 2-9 AUDIO&VIDEO FILTER

Fig 2-10 MEMOR


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2.3.2.MPEG Assembly Drawing(Fig 2-11)

2.3.3.MPEG Composite (Fig 2-12)


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2.4. Front panel Circuit Diagram and Component Layout

Fig 2-13 Front Panel Circuit Diagram

Fig 2-14 Front Panel Assembly Drawing

Fig 2-15 Front Panel Composite


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Replace

D1/D2/D6/D7/D8/D9/D10/

D11/D12/D13/D14

3. Servicing Procedures

3.1. 1 Power Supply Trouble Service Flow ChartPhilip

Power SupplyBlock Trouble

NG

Check FU1 Condition Replace FU1

OK

NG

Check F01 Condition Replace F01

OK

Check on D1/D2/D6/D7 NG

D8/D9/D10/D11/D12/D13/D14

Output Voltage Condition

OK

NG

Check on U1 Replace U1

Voltage Condition

Pin1(2.4V)/ Pin2(0V)/ Pin3 (2.6V)

NG

NG


NG

NG


Check CN1

Output Voltage


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Replace

D1/D2/D6/D7/D8/D9/D10/

D11/D12

3.1. 2 Power Supply Trouble Service Flow ChartVIPER 22A

Power Supply

Block Trouble

NG

Check FU1 Condition Replace FU1

OK

NG

Check F01 Condition Replace F01

OK

Check on D1/D2/D6/D7 NG

D8/D9/D10/D11/D12

Output Voltage Condition

OK

NG


Voltage Condition

Pin1(2.0V)/ Pin2(0V)/ Pin3 (2.6V)

NG

NG Check on U4 Replace U4

NG

NG


Check J3

Output Voltage


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3.2. Read Disc Trouble Service Flow Chart

Read disc problem in a DVD player is a very complicated issue that may

involve complex issues. This problem is not only relation to the electronic

circuit, but also very much relation to the operation environment.

DVD loading unit is a very complicate part that contains big number of ESD

components, which require specific equipment, tools and technique to repair;in general, service technician is not suggested to disassemble the DVD

loading unit. It is suggest proving the trouble and replacing the complete DVD

loading unit, instead of repairing the DVD loading unit in local workshop.

It is suggested to prove the faulty of a DVD loading unit by replacement by a

good DVD loading unit.

Before checking the "NO Disc" Trouble, ensure excluding the following

possibilities:

The test disc is damage.

AC power supply voltage dropped below the minimum required level.

DVD disc region code and color system is not matching to the DVD

player or system setting.

Moisture condensed inside the unit. (Power on the unit, without disc

loaded, for 1/2 to 2 hours).

Service Flow Chart

Read DISC Trouble

Check DVD LOADER NG Replace Connector

Connector Condition

OK

Replace DVD Loading Unit

NG

Check the MEPG ATAPI Check the other Parts by

I/F Interface Circuit Replacement Method


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3.3. Video Trouble Service Flow Chart

3.3.1. Composite Video Trouble Service Flow Chart

Composite Video Trouble

NG

Check S-Video Replace S-Video Parts

Output Signal

OK

NG

Check SETUP Item See User Manual

OK

NG

Check JK6 Signal Replace JK6

OK

NG

Check C38 R138 D5 Signal Replace C38 R138 D5

OK

Check U2 Pin151 Signal

NG

Replace U2


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3.3.2. S-Video Trouble Service Flow Chart

Composite Video Trouble

NG

Check S-Video Output Signal Replace S-Video Parts

OK

NG


OK

NG

Check J6 Signal Replace J6

OK

NG

Check R142/R144/C124/C153 Replace R142 or R144or C124

or C153

OK

Check U2 ( Pin154/152) signal

NG

Replace U2


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3.4. Digital Audio Trouble Service Flow Chart

Digital Audio Trouble

NG


OK

NG

Check Optical/Coaxial

Out Signal Replace Optical/Coaxial

OK

NG

Check JK3/JK1-B Signal Replace JK3/JK1-B

OK

NG

Check Q1 Signal Replace Q1

OK

NG

Check R5/C1 Replace R5/C1

OK

NG

Check U2 Replace U2


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3.5. Front Control Trouble Service Flow Chart

Front Control Trouble

NG

Check between CN1 Connection Replace CN1

OK

NG

Check U1 pin7 Vol 5V Check C7,C1,R8

OK OK NG

Check LED Array Replace U1 Replace C7,C1,R8

Replace LED Array


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3.6. Remote Control Trouble Service Flow Chart

Remote Control Trouble

NG NG

Check Remote Control Replace Battery Replace Control

OK

NG

Check REV1 (Pin1 )Voltage Check Power Supply

OK

Check REV1 (Pin3) Output Signal

NG

Replace REV1


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4. Parts List

4.1. 1Power parts list Philip

NO. PART NO. DESCRIPTION QTY LOCATION

Carbon Resistor

1 20-201582-04100 1/4W 1.5 2 R15 R162 20-204712-04100 1/4W 470 2 R4 R123 20-200232-04100 1/4W 2K 1 R74 20-247012-04100 1/4W 4.7K 1 R85 20-251012-04100 1/4W 5.1K 1 R146 20-275012-04100 1/4W 7.5K 1 R137 20-301031-04100 Metal Film 1/4W 10K 2 R3 R58 20-201532-04100 1/4W 15K 1 R29 20-202232-04100 1/4W 22K 1 R610 20-206832-06100 1W 68K 1 R1811 20-207532-04100 1/4W 75K 1 R1112 20-210032-04100 1/4W 100K 1 R1013 20-201012-04100 1/4W 1M 1 R1

Porcelain Capacitor

14 32-304713-05100 470PF 50V 1 C1015 32-301044-05100 104 50V 4 C6 C8 C11 C20

Electrolytic Capacitor

16 30-401034-05100 50V 10uF 1 C917 30-402234-14100 400V 22uF 1 C1418 30-410034-02110 16V 100uF 1 C1919 30-447034-02110 16V 470uF 3 C3 C4 C520 30-400164-01111 10V 1000uF 20% D10*12 1 C1

High Voltage Capacitor

21 32-401034-17100 103 1000V20% 1 C18

22 33-347003-25100 400VAC 470PF 10% Y1 3 C15 C16 C17

23 33-310003-12100 0.1uF/275v X210% 2 C12 C13

Diode

24 11-1N4007-26000 HER105 3 D1 D2 D1325 11-HER105-27000 HER107 1 D726 11-HER107-27000 HER 5822 1 D1227 11-1N5822-29000 IN4007 1000V 1A 6 D6,D8,D9,D10,D11,D1428

11-00D035-25002 Fixed Diode 22V 1/2WD0-35

1 D5

Triode

29 12-0BC327-22100 BC327-40 2 Q1 Q2IC

30 10-0TL431-2TF00 TL431 TO-92 1 U1


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31 10-FOD817-3FA00 COSMO 1010 817 UL VDE 1 U432 10-TEA152-3PL00 VIPER22A 1 U3

Fixed Inductance

33 41-130103-13201 10uH/3 4A 10% 1 L1Transformer

34 42-022112-02000 EEL22(5+7) 1 T2

35 42-032014-01000 UT-20 UL 1 T1

Fuse Tube

36 52-001311-11200 1A 250V 20*5MM (UL) 1 FU1

Thermistor

37 23-201002-00000 NTC-10D-9 1 F01

Jack

38 48-111031-20100 3.96*3P 1 CN2

Jumper

39 51-110009-10800 L=6MM =0.5MM 1 JP140 51-110014-10800 L=15MM =0.5MM 1 JP2

PCB

41 46-008842-12400 DVD-8842 LED-POWER REV 1.0 1Connector

42 48-111091-20100 2.54*9P White 1 CN1


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4.1.2 Power parts list(VIPER 22A)


Carbon Resistor

1 008.CD0202-JNX00 1/4W-2 1 R7

2 008.CD0221-JNX00 1/4W-220 1 R43 008.CD0223-JNX00 1/4W-22K 1 R6

4 008.CD0689-JNX00 1/4W-6.8 1 R12

5 008.CG0563-JNX00 2W-56K 1 R18

6 008.DD0103-FNX00 Metal Film 1/4W-10K 2 R3 R5

Thermistor

7 011.NTC10D-9HX00 NTC-10D-9 1 F01

Porcelain Capacitor

8 014.ABK103-MZX00 103 50V 1 C7

9 014.ABK104-MZX00 104 50V 2 C8 C11

10 014.ACK473-MZX00 473 100V 1 C6


11 013.DBG102-M3400 10V 1000U P3.5 1 C1

12 013.DCH471-M4400 16V 470U P3.5 3 C3 C4 C5

13 013.DEJ470-M1300 50V 47U P2.5 1 C9

14 013.DMJ470-M7600 400V 47U P2.5 1 C14

15 015.PT224K-PX152 224 275V 10% L=15.2MM 2 C12 C13

High Voltage Capacitor

16 014.AKK103-MZX00 103 1000V 1 C18

17 014.AMK222-MZX00 222 400V (UL) 1 C15

Diode

18 003.HER105-L0B00 HER105 3 D1 D2 D6

19 003.HER107-L0B00 HER107 1 D7

20 003.HER303-L0B00 HER 303 1 D12

21 003.IN4007-EDB00 IN4007 1000V 1A 4 D8 D9 D10 D11

IC

22 004.0TL431-0AA0A TL431 TO-92 1 U1

23 005.COS817-00PAA COSMO 1010 817 UL VDE 1 U4

24 005.VIPER2-2APAA VIPER22A 1 U3

Fixed Inductance

25 018.A104K0-1V302 10uH/3 4A 10% 1 L1

Transformer

26 020.BCK003-00000 BCK-003-3 SDER28/28 UL 1 T2

27 020.G0UT20-00500 UT-20 UL 1 T1


Jack


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28 026.1792WZ-03X01 3.96*3P 1 J2

29 026.1254WZ-08X01 2.54*8P 1 J3

Jumper

30 008.H00130-00X05 L=13MM =0.5MM 1 JP1

Fuse Tube31 029.01000D-10F01 1A 250V 20*5MM (UL) 1 F1L

PCB

32 019.DV8828-PW040 1.6MM 1


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4.2. Front panel parts list


Carbon Resistor

1 20-201002-03100 1/6W 105% 1 R62 20-201012-03100 1/6W 1005% 1 R43 20-201032-03100 1/6W 10K5% 5 R1 R3 R5 R7 R84 20-205132-03100 1/6W 51K5% 1 R2


4 30-410034-02110 16V 100UF 20% D5*12 2 C2 C630-420034-02110 16V 220UF 20% D6*12 1 C5

Porcelain Capacitor

5 32-301013-05100 101 50V 10% 3 C3 C4 C732-301045-05100 104 50V -20/+80% F5 D6 2 C2 C6

Diode

6 11-02SD10-21100 Round3 red 1 D1Receiver

7 57-MR6659-56608 5V BTM-1838 1 REV1

Jumper

8 51-110004-10800 L=4MM =0.5MM 1 JMP19 51-110010-10800 L=10MM =0.5MM 2 JMP3 JMP4

Jiggle Switch

10 55-002202-22000 6*6*6MM (250g) 6 K1 K2 K3 K4 K5 K6PCB

11 46-008842-13400 DV-8842 LED+KEY REV

1.0 (2006 04 22) 1.6MM

1

Connecter

49-106380-20700 6P/2.5---6P/2.0 L:380 mm 1 CN1


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4.3 Mpeg parts list


Chip Capacitor

1 P000603104050 C104 0603 27 C91 C18 C107

C12 C11C37C68 C49 C75

C28

C20C175 C55 C1

C41

C80 AC7 C85 C62

C46 C8 AC43 AC2

C174 AC19

C115

2 P000603330050 33P 0603 3 C13 C15 C21

3 P000603680050 68P 0603 12 C76 C79 C82C96

C9 C134 C146

C103

C113 C100

C111

C72

4 P000603101050 100P 0603 3 C5 C106 C102

5 P000603151050 150P 0603 5 C153 C12 C38

C24 C32

6P000603181050

180P 0603 6 C105 C101 C9C98

C133 C145

7 P000603201050 200P 0603 7 C114 C112

AC40 C7

C77 C78 C81

8 P000603221050 220P 0603 1 AC34

P000603471050 470P 0603 2 C120 C121

9 P000603102050 C102 0603 7 C30 C23 C3

C118

C2 C39 C31

10 P000603222050 C222 0603 2 AC4 AC66

P000603103050 C103 0603 1 C16

P000603273050 C273 0603 2 C26 C27

P000603105050 C105 0603 1 C8

Capacitor

E000000100050 100UF25v 1 EC2E000000101010 100UF/10V 11 EC15 EC8 EC1


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NO. PART NO DESCRIPTION QTY LOCATION

EC5 EC13 EC2

EC10 EC9 EC7

EC14 EC4

Chip Resistor

11 R000603000116 0R 0805 6 R19

R34R10R32 R4

ER205

12 R000603109116 1R 0603 1 R26

13 R000603229116 2R2 0603 1 R21(R22)14 R000805229116 2R2 0805 1 R415 R000603479116 4R7 0603 3 R94R14R1516 R000603330116 33R 0603 2 R101 R1217 R000603560116 56R 0603 1 R1718

R000603750116 75R 0603 5 R144 R142 R13

R130 R52

19 R000603101116 100R 0603 4 R53 R54R11ER4020 R000805101116 100R 0805 1 EL221 R000603151116 150R 0603 1 R15222 R000603221116 220R 0603 4 R13R16R9R1023 R000603391116 390R 0603 1 R10324 R000603471116 470R 0603 1 R625

R000603102116 1K 0603 6 R58 R112 R9ER173 R38 R82

26 R000805102116 1K 0805 1 L127 R000603122116 1.2K 0603 1 R7128

R000603152116 1.5K 0603 7 R62 R29 R3 C89C92 C140 C142

29 R000603202116 2K 0603 4 R134 R2 R3 R2530

R000603222116 2.2K 0603 13 R129 R132 R133R164

R17 R176 R183

R87

R146 R68 R14

R154

R128

31 R000603332116 3.3K 0603 1 R3332 R000603392116 3.9K 0603 2 ER157 ER17433 R000603432116 4.3K 0603 1 R24934

R000603472116 4.7K 0603 41 R49 R48 R14ER20

R195 R149 R145

R196


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R194 R193 R187

R139 R28 R186

R190

R18 R27 R65 R6

R74

R77 R80 R9 R98R105

R106 R114 R117

R123

R125 R126 R135

R137

R147 R148 R162

R163 R170 R172

R182

R184

35 R000603103116

10K 0603 18 R250 R67 R15R159

R18 R7 R8 ER131

ER39 R30 R69

R86

ER178 ER179

ER189

ER155ER156

ER191

36 R000603123116 12K 0603 1 R24537 R000603153116 15K 0603 3 R93 R36 R3538 R000603183116 18K 0603 1 ER15839 R000603203116 20K 0603 1 R24440 R000603223116 22K 0603 1 R7641

R000603333116 33K 0603 13 R41 R47 R50 R56R78

R84 R119 R177

R102

R107 R95 R9 R89

42 R000603513116 51K 0603 3 R83 R70 R8143

R00060368311668K 0603 1

ER175

44 R000603104116 100K 0603 1 R11145 R000603105116 1M 0603 1 R110

Resister

46 R000000689102 6.8R DIP-1/2W 1 D7


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Diode

47D000004001000 1N4148 DO-35 5 D3 D1 ED11

ED6 D8

48 D000004148000 1N4001 DO-41 1 D249 D000000439102 4.3V 1 D4

Chip Diode50 D000010054000 BAT54S SOT-23 1 Q11

Chip Audion

51 Q000019015000 9015 SOT-23 3 Q6 Q4 Q352 Q000013904000 BAT54S SOT-23 1 Q1153 Q000018550000 8550 SOT-23 2 Q21 Q254

Q000019015000 3904 SOT-23 10

Q24Q9 Q23 Q22

Q7

Q8 Q14Q15

55 Q000008550000 SS8550/1.5A TO-92 2 Q10 Q156 Q000009014000 9014 TO-92 1 EQ17

IC

57Y000005888000 CS4334/CE27

11

S08NB 1 U4

58Y000000962000 AM5888S HSOP-28-

375-0.8

1 IC7

59Y000002402000 962 LQFP-20

8Pin

1 U2

60Y000004558000 24C02 SOIC-8Pi

n

1 U8

61 Y000000400000 4558 TSOP50 4 IC8 EU6 IC3IC1262

Y000000416000 400/800FLASH-48Pin

TSOP-4

8

1 U7

63Y000000116000 4*16 LQFP-25

7

1 U5

64 Y000005888000 1*16 U3Jack

65 J000000006000 6P /2.0 2 CN15 CN1266 J000000005000 5P /2.0 1 CN1467 J000001007000

7P /2.5 1 AV-CON1

68 J000001006000 6P /2.5 1 CN169 J000000010000 10P/2.0 1 CN1070 J000001004000 4P/2.5 1 CN1171 J000000008000 8P/2.0 1 CN472 J000000004000 4P/2.0 1 CN673 J000000003000 3P/2.0 1 ECN1874 J000005000003 OPTICAL 1 AV2


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75 J002729000000 S-VIDEO 1 AV176

J000004006001 AV RCA6 1 J377 J000005024001 24p 1 CN2

Chip Bead

78 F000603000000 0R 0603 4 FB11 FB15 FB5

FB4

Crystal

79 T000027000000 27MHz 20P DIP 1 Y1

PCB

80 P000966000001 94.5mm*79.9mm 1

DAEWOO DN-K538 Service Manual

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