Sanyo DS20424 Service Manual Download

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COMPONENT AND TESTPOINT LOCATIONS

MAIN BOARD FOIL SIDE

B10B10900

NA7D

AGC

SDA

SCL

TP318

TP317

TP301

CH-DN

CH-UP

VOL-DN

VOL-UP

POWER

TP7

TE7

TP50

TJ1

TJ3

TJ5

TJ2

TP132

TP51

B10B1090A

TJ6

TP35

TP36

J1081

C3439

D680

PS601B

PS601

T601AH14

T601AH11

T601

T601A

J501

C471

D471

R471

C625

C622

D1902

C633A

C633

C628

C415

R510

R601H2

R601A

C601C

C1901

PS601A

C3436

C629

K1002

J1014

C1902

KT5P

KT4P

KT3P

KT2P

KT1P

R428

R491

R494

R493

D487

R497

D481

C493

C484

D482

R422

R497A

D623

R481

R492

KD1P

KD2P

C482

D428

R482

D429

L401A

L401

Q401

C511A

D1901

R511

L1901

L402

C416

C417

T401

C511

R407

L404

C407

C406

C408

IC001

SW1906

SW1905

SW1904

SW1903

SW1902

SW1901

R417

C473

J406

J413

R353

R485

J411

J412

J1907

KY1P

R404

C416A

C417A

D604

R628

Q681

Q627

R601H3

R601

R601H1

D624

C606A

C609H2

C609H1

T601H7

T601H2

C632A

C626

C624

L623

D625

L625

C632

D612

D603

D601

D602

C606

R602

C631

C631A

F601A

F601B

C601B

C601A

C601

LF601

LF601B

LF601A

RL601

K1101

R856

R857

A101

KX5P

KX4P

KX3P

KX1P

D629

D683

IC681

C683

IC681A

R686

J401

J601

R106

C102

D101

C101

C106

K1051

C1051

C1004

C1059

D1004

D1052

D1051

J1051

J1052

R1059

C1101

D1102

C011

C010

C3417

C3411

C1103

C3408

C3413

C3401

C3412

C3432

C3424

C3404

C3416

C3418

KSP

C1102

C1007

C1006

C3427

J3403

R421

D801

D806

J104

J402

J013

C002

C001

J3401

J3402

J3404

C015

J017

R486

R489A

R487

D486

J1011

J1004

R833

J144

D472

J446

R495A

D422

D421

C421

R276

Q490

R499

D490

R488

C497

J492

J811

R1910

R1911

J808

J481

J809

J482

J608

R511A

R489

A1901

J3471

L3401

D836

R832

R495

R472

C489

Q486

J502

L812

J842

J843

IC802

C806

C802

C811

C822

C829

D834

D843

L811

L801

R883

R884

J1013

J848

Q005

R006

Q001

J116

J117

J113

J114

C693

Q693

R694

D693

Q695

R631

Q635

D627

C634

IC601

L602

R603

R617

R618

R604

R612

C608A

C608

D611

C611

Q613

D613

R614

C613

C614

C612

R607

L612

R606

R611

R613

D614

L611

Q611

R615

R692

Q612

C603

C604

R107

R430

R634

C609

D001

D408

L626

J618

C623

L413

R408

T401A

R605

J606

J616

R635

R630

R610

J614

L602A

C630

J690

R406

R699

R498

D699

R405A

R405

K1001

IC801

X141

L131

C134

C201

C203

C204

C206

Q131

R204

C518

C519

C403

C401

R411

R412

R414

C143

C148

C214

C213

C212

C211

Q132

L132

X131

X201

C869

X801

J201

R203

J202

J803

R804

R863

R426

J204

J863

R810

J867

J868

J1059

J869

R868

J801

R463A

C411A

C412A

R462

R468

C504

R506

R509

R504

C501

C503

R467

D502

D501

C508

C461

R461

R513

C463

C466

R464

R512

L414A

L414

C419

C502

C506

R505

R507

C516

R463

C413

C414

C411

D406

R508

C414A

D407

C412

C413A

J408

J407

J504

J503

J461

D461

L416

L416A

L416H1

L416H2

J417

J462

J463

J802

C1001

J1001

J1053

J1054

J1056

J1003

J1002

J353

J418

J143

J352

J866

R423

J421

J806

J831

J804

L141

J861

J1057

J1058

J207

J1007

J1008

J1009

J206

L143

L142

J142

J131

L627

J016

R607A

C418

J872

J871

C1003

C1002

D002

D351

J464

C012

R013

J014

C490

C141

J818

J817

C3414

C218

L417

C866

J873

J1006

J141

J419

J416

J426

J427

D503

T402H1

T402H2

T402H4

T402H5

T402H7

T402H8

T402H10

T402H11

T402H9

T402

Q601H2

Q601H1

Q601

Q402H1

Q402H2

Q402H3

Q402H4

Q402

IC501H1

IC501P

IC501

C3423

C3426

J603

J1901

J414

J021

C006

R1907

R1906

R1905

R1903

R1902

R1901

D884

D883

D881

D882

R1904

PB1

C884

C883

C800

C689

R629

C813

C812

R103

C103

R1012

R1013

R1008

R1052

R1051

R1009

R1011

R1106

R1101

R1104

R1103

R1102

R004

R001

R003

C003

C004

C3421

C3422

C3406
C3407

C3434

C3433

C3431

R3421

R002

R3426

R3411

R3406

R3407

IC3401

R3422

D1059

C3403

C3402

R3402

C1052

J622

R809

C809

C810

R806

C808
C807

C801

R813

R808

R807

R831

J881

R882
R881

R005

J005

R632

R695

R693

R609

R619

R608

R616

R691

R627

J604

J610

J611

J613

J615

J605

J619

J609

C147
R143

C131

C132

C133

C136

C137

C138

C202

C216

C207

R133

R131

R132

R134

R202

C402

R413

C861

R802

R803

R137

R138

R139

R141

R144

R146

R136

R209

R208

R207

R206

R281

C146

C144

C142

C209

C208

C427

C282

R866

R867

R864

R862

C868

C867

C864

C863

C862

IC1001

R287

R288

R289

R201

J807

C462

R518

R416

D831

R816

Q831

R814

R1007

R1006

D1003

R1004

R1003

D1002

R1001

R1002

D1001

J862

R683

R282

J203

J813

R620

R135

R517

C404

J814

J146

R503

R130

R205

R128

R129

C129

R127

R861

C491

C018

R142

R3401

Summary of Contents for DS20424

Page 1: ...structions 2 Service Adjustments 3 10 Service Hints 11 Mechanical Disassemblies 12 Chassis Electrical Parts List 13 19 Cabinet Parts List 20 Component and Test Point Locations 21 24 Schematic Insert 25 32 Schematic Notes 25 Pin Layouts 25 Capacitor and Resistor Codes 25 Block Diagram 26 27 Voltage Charts 26 27 Waveforms 28 Schematic Diagrams 29 32 AS FILE NO SERVICE MANUAL Remote Control Color Tel...

Page 2: ...inet screw heads metal overlays control shafts etc Measure the AC voltage across the 1500 ohm resistor The AC voltage should not exceed 750 mV A reading exceeding 750 mV indicates that a dangerous potential exists The fault must be located and corrected Repeat the above test with the receiver power plug reversed NEVER RETURN A RECEIVER TO THE CUSTOMER WITHOUT TAKING THE NECESSARY CORRECTIVE ACTION...

Page 3: ...ETUP Note When IC802 EEPROM is replaced change the following initial reference data for proper TV operation before attempting service adjustments 1 Disconnect the AC power cord AC 120V line 2 While pressing the MENU key reconnect the AC power cord The Service Menu display will now appear 3 Select NO 3B SCN Sub Contrast with or key Adjust the data with or key for 18 4 Select NO 3C SCO Sub Color wit...

Page 4: ...r key Adjust the data with or key for C0 19 Select NO 8A ROV RF Over Shoot Adjust with or key Adjust the data with or key for 04 20 Select NO 8B RPR RF Pre Shoot Adjust with or key Adjust the data with or key for 20 21 Select NO 8D HR H Display Position with or key Adjust the data with or key for 24 22 Select NO 8E SBO Sub Bright Offset with or key Adjust the data with or key for 04 23 Press the M...

Page 5: ... 0 4A GB 00 00 00000000 Green Bias 7 0 4B BB 00 00 00000000 Blue Bias 7 0 4C RD 40 40 01000000 Red Drive 6 0 4D GD 08 08 00001000 Green Drive 3 0 4E BD 40 40 01000000 Blue Drive 6 0 4F SBI 40 30 00110000 Sub Bias 6 0 50 Not Used 51 Not Used 52 OSD 03 03 00000011 On Screen Display Contrast 1 0 53 ABL5MSD4RTS3BAT 14 1C 00011100 ABL Defeat 5 MID Stop 4 RGB Temp 3 ABL Thresh 2 0 54 CRG 12 12 00010010 ...

Page 6: ...ystem 2 0 90 DCN 00 00 00000000 YUV Sub Contrast 6 0 91 DBR 00 00 00000000 YUV Sub Bright 6 0 92 DCL 00 00 00000000 YUV Sub Color 6 0 93 DTN 00 00 00000000 YUV Sub Tint 6 0 94 DSH 00 00 00000000 YUV Sub Sharpness 6 0 95 DCG 00 00 00000000 YUV Sub Coring 6 96 DVG 00 00 00000000 YUV Sub VM Gain 5 0 97 DHS 00 00 00000000 YUV Sub E W DC 5 0 98 DRY 0E 0E 00001110 YUV R Y Offset 3 0 99 DBY 90 90 1000011...

Page 7: ...will not operate properly BIT FUNCTION DATA 0 1 0 1 TV HOTEL MON N A N A 2 VIDEO MODE NONE YES 3 4 CLOCK N A N A 5 ASPECT RATIO NONE YES 6 NOT USED 7 SURROUND NONE YES Note 1 Red Blue Drive Adjustments in Service Menu NO A8 DRV Adjust Red and Blue Drive Levels alternately with 1 3 7 and 9 keys on the remote control See Figure 2 The Drive Level adjustment data will be written in the Service Menu No...

Page 8: ...NU key reconnect the AC power cord The Service Menu display will now appear 5 Select NO 42 VS Vertical Size with s or t key 6 Adjust the data with or key for full scan To turn off the Service Menu display press the MENU key VERTICAL CENTERING ADJUSTMENT 1 Tune receiver to an active channel 2 Check that picture is in the center of TV screen If picture center is too low change resistor R513 from 1K ...

Page 9: ... Check and Grayscale Adjustment must be completed before attempting high voltage Check 1 Connect high voltage voltmeter lead to ground and connect lead to anode of picture tube 2 Tune receiver to an active channel and confirm TV is operating properly 3 Eliminate the beam current by adjusting the contrast and brightness controls to minimum 4 Confirm high voltage is within 28 0 KV and 31 1 KV If rea...

Page 10: ... LEVEL ADJUSTMENT 1 Connect a signal to the antenna terminals with audio of 1 KHZ 100 modulation 2 Turn off the receiver and disconnect the AC power cord AC 120V line 3 Connect voltmeter RMS to TP317 and ground 4 While pressing the Menu key reconnect the AC power cord The Service Menu will now appear 5 Select NO 80 ATT Attenuation with the or key 6 Adjust the or key for a voltmeter reading of 400 ...

Page 11: ...f these failures remains uncorrected the CPU will shut off the power within three seconds Check the following if the unit is turned off by the power failure detector 1 Disconnect the AC power cord 120V AC line for at least 10 seconds 2 Connect a DC Voltmeter to the following TEST POINTS 3 Press the Power key and check for the proper voltage supplies 4 If any of these voltages is low the power fail...

Page 12: ...p these assemblies intact unless picture tube is being replaced Discharge the picture tube to the coating before handling the tube 1 Remove chassis see Chassis Removal instructions 2 Place cabinet s front face down on a soft surface 3 Remove the screw on each corner of the picture tube and GENTLY lift the picture tube out of the cabinet 4 Install a replacement picture tube in reverse order Properl...

Page 13: ...P Pico Farad U Micro Farad Material CERAMIC Ceramic MT PAPER Metalized Paper POLYESTER Polyester MT POLYEST Metalized Polyester POLYPRO Polypropylene MT POLYPRO Metalized Polypropylene COMPO FILM Composite Film MT COMPO Metalized Composite STYRENE Styrene TA SOLID Tantalum Solid AL SOLID Aluminum Solid ELECT Electrolytic NP ELECT Non Polarized Electrolytic OS SOLID Aluminum Solid with Organic Semi...

Page 14: ... 3801 ELECT 1U M 50V C631 404 088 2909 CERAMIC 1000P M 250V 404 088 7102 CERAMIC 1000P M 250V C632 404 088 2909 CERAMIC 1000P M 250V 404 088 7102 CERAMIC 1000P M 250V C683 404 084 2804 ELECT 100U M 16V C693 404 086 5100 POLYESTER 0 1U J 63V C701 403 235 1109 CERAMIC 270P J 50V C702 403 069 8305 CERAMIC 0 01U Z 50V C711 403 235 1109 CERAMIC 270P J 50V C721 403 235 1109 CERAMIC 270P J 50V C742 403 0...

Page 15: ...MPG06G 407 124 6404 DIODE ERA18 04 D624 407 106 2806 DIODE RU3YX D625 407 129 7000 DIODE RU4AM LF L1 407 211 5808 DIODE FE201 6L43 D680 407 013 4306 DIODE 1S2076A 407 013 7109 DIODE 1S2473 408 008 2406 DIODE 1N4148 D683 407 013 4306 DIODE 1S2076A 407 013 7109 DIODE 1S2473 408 008 2406 DIODE 1N4148 D693 407 099 5600 ZENER DIODE MTZJ6 8A 6 8V D699 407 006 0100 DIODE ERA91 02 D801 407 013 4306 DIODE ...

Page 16: ...681 405 011 8401 TR 2SC1740S Q 405 011 8500 TR 2SC1740S R 405 011 8609 TR 2SC1740S S 405 012 2002 TR 2SC1815 GR 405 012 2101 TR 2SC1815 O 405 012 2309 TR 2SC1815 Y 405 020 7501 TR 2SC945A PA 405 020 7709 TR 2SC945A QA 405 020 7907 TR 2SC945A RA 405 151 8705 TR 2SC536NG NPA 405 157 0505 TR 2SC536NF NPA Q693 405 011 8401 TR 2SC1740S Q 405 011 8500 TR 2SC1740S R 405 011 8609 TR 2SC1740S S 405 012 200...

Page 17: ... 1 6W R422 401 052 6802 MT FILM 10K FA 1 6W R423 401 053 2605 MT FILM 3 3K FA 1 6W R426 401 027 5205 CARBON 680 JA 1 6W R428 401 025 1902 CARBON 15K JA 1 6W R471 401 006 7701 CARBON 1 JB 1 2W R472 401 067 3100 OXIDE MT 3 9 JA 2W R481 401 010 2600 CARBON 47 JB 1 2W R482 401 011 9004 CARBON 1 JB 1 4W R485 401 025 4606 CARBON 18K JA 1 6W R486 401 065 1801 OXIDE MT 12 JA 2W R487 401 026 6609 CARBON 39...

Page 18: ... 401 026 1000 CARBON 2 7K JA 1 6W R881 401 255 6500 MT GLAZE 100 JA 1 10W R882 401 255 6500 MT GLAZE 100 JA 1 10W R883 401 024 6700 CARBON 100 JA 1 6W R884 401 024 6700 CARBON 100 JA 1 6W R1001 401 255 6500 MT GLAZE 100 JA 1 10W R1002 401 256 2709 MT GLAZE 75 JA 1 10W R1003 401 255 6500 MT GLAZE 100 JA 1 10W R1004 401 256 2709 MT GLAZE 75 JA 1 10W R1006 401 255 6500 MT GLAZE 100 JA 1 10W R1007 401...

Page 19: ...68 7013 TUNER U V A700 610 316 6858 ASSY PWB SOCKET A1901 645 047 6228 UNIT REMOCON RECEIVER F601 423 007 1601 FUSE 125V 4A 423 007 1809 FUSE 125V 4A 423 018 8101 FUSE 125V 4A 423 029 8008 FUSE 125V 4A F601A 645 000 5077 HOLDER FUSE 645 016 0479 HOLDER FUSE F601B 645 000 5077 HOLDER FUSE 645 016 0479 HOLDER FUSE K701 645 028 0306 SOCKET CRT 8P 652 001 1472 SOCKET CRT 8P K1001 645 063 9616 JACK RCA...

Page 20: ...412 036 1805 SCREW 4X14 7 USED OR 411 078 1101 SCREW 4X14 7 USED 7 412 018 8402 SCREW 3X10 1 USED 8 610 306 5007 BUTTON UNIT 9 610 289 5148 CAP RC 10 610 317 4648 DEC SHEET 11 645 067 3818 SANYO BADGE 12 610 306 5342 DEC AV SHEET 13 610 306 5311 DOOR 610 316 6643 OWNER S MANUAL 645 065 6910 RC TRANSMITTER 645 065 6934 RC TRANSMITTER 610 312 0287 RC BATTERY COVER 610 312 0317 RC BATTERY COVER CABIN...

Page 21: ...614 C612 R607 L612 R606 R611 R613 D614 L611 Q611 R615 R692 Q612 C603 C604 R107 R430 R634 C609 D001 D408 L626 J618 C623 L413 R408 T401A R605 J606 J616 R635 R630 R610 J614 L602A C630 J690 R406 R699 R498 D699 R405A R405 K1001 IC801 X141 L131 C134 C201 C203 C204 C206 Q131 R204 C518 C519 C403 C401 R411 R412 R414 C143 C148 C214 C213 C212 C211 Q132 L132 X131 X201 C869 X801 J201 R203 J202 KS J803 R804 R86...

Page 22: ...A 125V 4A 125V CAUTION MAIN BOARD COMPONENTS AND TEST POINTS GRID LOCATIONS Part Loc D002 C3 D429 E2 D612 B5 D806 E3 IC001 F5 IC501 D2 IC601 C5 IC681 C6 IC801 F4 IC802 F4 IC1001 E3 IC3401 E5 Q001 D4 Part Loc Q005 D4 Q131 F3 Q132 E3 Q401 B2 Q402 C2 Q486 C4 Q490 D4 Q601 A3 Q613 A4 Q627 B6 Q681 C6 Q693 B5 Q695 B5 Part Loc Q831 D5 R512 E2 R513 E2 TE7 F2 TP7 F3 TJ1 C3 TJ6 D3 TP16 F3 TP50 A2 TP51 A2 TP3...

Page 23: ...3 C002 C001 J3401 J3402 J3404 C015 J017 R486 R489A R487 D486 J1011 J1004 R833 J144 D472 J446 R495A D422 D421 C421 R276 Q490 R499 D490 R488 C497 J492 J811 R1910 R1911 J808 J481 J809 J482 J608 R511A R489 A1901 J3471 L3401 D836 R832 R495 R472 C489 Q486 J502 L812 J842 J843 IC802 C806 C802 C811 C822 C829 D834 D843 L811 L801 R883 R884 J1013 J848 Q005 R006 Q001 J116 J117 J113 J114 C693 Q693 R694 D693 Q69...

Page 24: ...2 Q721A Q711A Q711 Q721 R707 R704 R721 R711 C702 R717 R727 SCREEN R701 R724 K7S R716 K7B GND L701 PICTURE TUBE SOCKET BOARD July 2004 2000 SMC Printed in U S A For parts or service contact 21605 Plummer Street Chatsworth CA 91311 U S A 300 Applewood Crescent Concord Ontario L4K 5C7 CANADA SANYO Fisher Service Corporation COMPONENT AND TESTPOINT LOCATIONS Cont ...

Page 25: ... X RADIATION NOMINAL 2ND ANODE VOLTAGE IS 29 1KV AT ZERO BEAM CURRENT AT 120 VOLTS AC LINE AND MUST NOT EXCEED 31 1KV UNDER ANY OPERATING CONDITION SEE HIGH VOLTAGE CHECK ON PAGE 9 1 1 1 1 TOP VIEW SIDE VIEW COUNT TERMINALS IN ARROW DIRECTION MARK E C B A K A K A K A K A K A K INFRARED EMITTING A ANODE K CATHODE INTEGRATED CIRCUITS TRANSISTORS 1 DIODES PHOTO COUPLERS B BASE C COLLECTOR E EMITTER E...

Page 26: ... R683 1 2DJ 2 7 R505 1 10GJ 330C R816 1 10GJ100C R881 1 10GJ4 7KC R809 1 10GJ 330KC R1102 1 10 GJ 18KC R517 D486 1 10GJ 470C R139 R D002 L625 EK2 2AE C503 EM1 LBWA C212 12V EM1 LBWA C134 EM10LBWA C516 EM1LBWA C012 2SD400E MP Q490 2SD400F MP 1 10GJ 75C R1106 KX3P 1 10GJ 1KC R143 X R513 SW1902 2SK2638 F82 Q601 KK0 01 LZB C216 1SJ39 R495 DJ1B R482 2SJ4 7 R497 PQ050EA1MXP IC681 1 2 3 1 10GJ3 9KC R3426...

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