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Sanyo DS25320 Service Manual Download Page 22

— 22 —

COMPONENT AND TESTPOINT LOCATIONS (Cont.)

MAIN BOARD FOIL SIDE

X

XX

X

X

X

X

X

X

X

B10B07900

A

8

5

4

1

VC8B

B10B0790A

1

10

20

24

25

30

40

41

50

60

64

65

70

80

1

5

E

1

AGC

AS

SCL

SDA

MB

PB

TB

IF

4

1

3

E

5

1

TE7

TP7

TJ3

TJ5

TP36

TP35

TP50

TP51

TP113

TP132

TP11

TP16

TP21

1

4

5

8

E

E

E

E

E

E

1

2

3

KD

4

3

2

1

E

E

E

1

7

10

16

TJ2

1

7

10

16

TJ6

TP12

TP814

TJ1

A

36

30

2019

18

10

1

E

C

B

(HEATER)

(AFC)

(ABL)

(GND)

(VERT+B)

(L+B)

(VIDEO+B)

(135V OR

 130V)

(H-OUT)

(ABL)

2

3

1

E

E

E

B10B0790B

G

G

R

R

B

B

B

R
G

1

5

4

1

A

IC802

C806

D834

L821

X801

C891

C802

C822

C831

L801

C896

SW1903

SW1904

SW1902

SW1905

SW1901

SW1906

R1910

R865

R897

C131

C147

L284

C272

C284

C509

C403

R400

C253

C256

C258

C211

C153

C212

X251

X161

T151

L164

L256

C401

C252

C405

C505

KS

L146

X141

X141A

L136

C151

R829

R823

R849

R144

R132

R272

R513

C413A

C1902

R517

R518

C421

R503

L141

C106

R514

R512

L501

C501

C516

R509

R506

R504

R508

C503

C506

D502

KT5P

KT4P

KT3P

KT2P

KT1P

C101

D101

C504

C502

R491

R494

R493

D487

R497

C481

D481

C493

R497A

D483

R481

C496

D492

R492

C494

C487

C482

KB

R483

C413

Q401

C511A

R511

KX1P

KX3P

KX4P

KX5P

R406

C483

L402

C416

C417

T401

C511

R407

L404

C407

C406

C408

R106

R495

A101

R411

C473

R353

R507

C411

D409

R408

D351

R857

R856

D801

KY1P

R416

C416A

C417A

L403

C414

D422

D421

R421

R482

C484

R428

R422

D482

D428

R423

D429

R498

C414A

T401A

R411A

R505

L101

R837

Q490

D490

R490

C508

J401

J1901

J146

J147

J504

J409

J107

J501

J407

J412

J411

J406

J413

J408

J405

J502

J106

J802

J818

J817

J816

J813

J423

J141

J142

J421

L811

J801

J1902

L812

J424

J281

J444

J282

J809

R142

J402

A1901

L401

R408A

C274

C491

R511A

K1001

KSP

D001

R001

C001

C008

IC001

J101

C011

J161

J132

J001

J256

R401

R496

R499

C497

C1001

R487

Q486

R486

C805

D680

R628

Q681

Q627

C693

Q693

R694

D693

Q695

R631

D624

R630

C626

C624

C625

L623

D625

L625

Q635

D627

D629

C683

IC681

C629

C631

C6

31

A

C634

C628

R683

D486

R489

IC601

J623

J621

J622

J803

R402

J482

D802

R404

R882

R881

R884

R883

T402H11C

C1002

R488

D683

R686

C689

PS601

R601H2

R601A

PS601B

KD1P

KD2P

D604

R601H3

R601

R601H1

C606A

D603

D601

D602

C606

R602

A1

A2

F601B

F601A

LF601

LF601A

J608

C632A

C632

T601H14

T601H7

D612

C633

C633A

T601H2

T601H10

H

C609H2

C609H1

L602

R603

R617

R618

J601

R604

R612

C608A

C608

D611

C611

Q613

D613

R614

C613

C614

C612

R607

Q612

L612

R606

R611

R613

D614

L611

Q611

C609

J102

J103

J814

J832

J831

J491

J002

J108

T601A

RL601

T601

J481

R484

J112

J111

C602

C604

R430

J1903

J105

J114

J109

J1904

J251

J252

D408

C601

J116

C427

D491

D501

J633

PS601A

T402H11A

T402

Q402

Q402H1

Q402H2

Q402H4

Q402H3

Q402H5

T402H11

T402H7

T402H5

T402H4

T402H2

T402H1

T402A

T402H9

T402H10

T402B

T402H11B

Q601

Q601H2

Q601H1

IC501H1

IC501H2

IC501H3

IC501

Q701

Q701A

R706

K7B

R717

R727

R707

R726

R707A

R727A

R717A

K7U

K7U1

C742

R716

K7S

K701

K701A

R701

C702

Q721A

Q721

Q711

Q711A

R721

R711

R722

R723

K7Y1

R1908

R1907

R1906

R1905

R1904

R1903

PB

C1901

R893

C808

C807

C834

R834

C894

R831

R833

C892

R807

C801

R808

R809

R806

C821

R894

R898

C826

C811

C812

R801

R832

C862

R862

R863

R864

R892

R847

R846

R842

R843

R844

R1901

D831

Q831

IC801

IC101

R164

R165

R163

R301

R212

R252

R251

R442

R441

R443

R444

C257

C221

R281

C282

R282

R405

R287

R286

R288

C285

C843

C841

C842

C803

R161

R162

C146

R131

R143

C143

C426

C141

R141

C142

C132

C137

C136

R130

R136

C134

C133

R133

R151

C402

R852

C161

C804

C138

R273

R449

R886

D836

D843

C823

R851

R1902

C832

C441

R848

R899

C152

R803

R804

R276

C103

C856

C857

R103

C884

C883

C809

R284

C404

J131

J286

J404

J403

D1901

R211

R274

R166

R1909

J257

R134

J508

D1902

R1006

R1001

R003

C003

C004

J806

C800

C486

R629

J631

J632

R632

R634

J634

R695

R627

R691

R693

R692

R485

J891

R1003

R609

R619

R608

R616

J602

J603

J133

J104

J483

J484

J604
J606

J627
J628

R1004

R426

R1002

R712

C711

C721

R704

C701

R718

R714

R724

R728

R702

R703

R713

C741

FOR CONTINUED PROTECTION
AGAINST A RISK OF FIRE,
REPLACE ONLY WITH THE SAME
TYPE 4A, 125V FUSE.

ATTENTION : POUR MAINTENIR
LA PROTECTION CONTRE LES
RISQUES D’ INCENDIE UTILISER
UN FUSIBLE DE RECHANGE DE
MEME TYPE 4A, 125V.

4A   125V

CAUTION

Summary of Contents for DS25320

Page 1: ...tions 2 Service Adjustments 3 8 Service Hints 9 Purity and Convergence 10 11 Mechanical Disassemblies 12 Chassis Electrical Parts List 13 18 Cabinet Parts List 19 Component and Test Point Locations 20 23 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 SERVICE MANUAL Remote Contro...

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: ...b Color No 49 STI Sub Tint No 50 SSH Sub Sharpness No 51 OPT Option 1 and No 52 OPT2 Option 2 should be set up for proper TV operation before attempting the service adjustments Bus data is in the hexadecimal format 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 4 VS V Size with or key Adjust...

Page 4: ...1 00 01 Filter System 25 CKO 03 03 00 07 Color Killer Operation 26 GYA 00 00 00 01 G Y Angle 27 CRG 02 02 00 03 Corring Gain 28 PRE 03 02 00 03 Preshoot Adjust 29 WP 01 01 00 01 White Peak Limiter 01 OFF 00 ON 30 FSW 00 00 00 o1 Flyback Blanking Switch 31 VBL 00 00 00 01 Vertical Blanking Switch 32 BSG 01 02 00 03 Black Stretch Gain 33 BSS 01 01 00 03 Black Stretch Start 34 DCR 01 01 00 03 DC Rese...

Page 5: ... the Program Code must be correct Note 1 Option Data NO 51 OPT should be set to hexa decimal 04 See page 3 INITIAL DATA SETUP step 13 for set up procedure If this program code is wrong the TV will not operate properly Note 2 Option Data NO 52 OPT2 should be set to hexa decimal 80 See page 3 INITIAL DATA SETUP step 14 for set up procedure If this program code is wrong the TV will not operate proper...

Page 6: ...re center is too high add resistor R512 470 ohm 1W GRAYSCALE ADJUSTMENT 1 Set the picture controls to the Auto levels use MENU key and or key or RESET key 2 Turn off the receiver and disconnect the AC power cord 120V AC line 3 While pressing the MENU key reconnect the AC power cord The Service Menu display will now appear 4 Select NO 15 RB Red Bias NO 16 GB Green Bias and NO 17 BB Blue Bias with o...

Page 7: ... Adjust the data with or key for 600 mVDC 9 Press the MENU key to turn off the Service Menu display 10 Check brightness level on every active channel readjust repeat steps 5 9 if necessary Note Do not set to excessive brightness level otherwise the contrast level will be suppressed HIGH VOLTAGE HOLD DOWNTEST Every time the receiver is serviced the HIGH VOLTAGE HOLD DOWN circuit must be tested for ...

Page 8: ...key to turn off the Service Menu display and disconnect oscilloscope from chassis SOUND ADJUSTMENT 1 Connect a color bar generator to the antenna terminals with audio signal of 1KHz at 100 modulation 2 Set the picture controls to the Auto levels 3 Connect oscilloscope lead to TP21 pin 75 of IC101 or C132 and lead to ground 4 Turn off the receiver and disconnect the AC power cord AC 120V line 5 Whi...

Page 9: ...ny of these failures remains uncorrected the CPU will shut off the power within 3 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 10: ...ust Service Menu NO 15 RB Red Bias NO 16 GB Green Bias and NO 17 BB Blue Bias data each to 0 8 Select Service Menu NO 56 no vertical sweep 9 Adjust the Screen Control counterclockwise until the horizontal scan line is no longer visible 10 Select Service Menu NO 16 GB Green Bias and increase the data to produce a green raster If retrace lines appear reduce screen control slightly 11 Pull yoke back ...

Page 11: ...D GREEN Adjust six pole tabs angle to superimpose red blue and green vertical line Adjust six pole tabs together to superimpose red blue and green horizontal line RED GREEN BLUE RED GREEN BLUE Line movement when adjusting top of yoke in and out Figure 7 Side of Yoke Movement OUTER AREA CONVERGENCE ADJUSTMENT The outer area convergence is performed by positioning of the yoke as follows 1 Move the t...

Page 12: ... be taken to keep these assemblies intact unless picture tube is being replaced Discharge the picture tube to the coating before handling the tube 1 Remove chassis referring to 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...

Page 13: ...10 U 75 10 V 20 10 W 100 10 X 40 20 Y 150 10 Z 80 20 Rated Value 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...

Page 14: ...706 ELECT 330U M 200V 404 085 9000 ELECT 330U M 200V C612 403 057 3107 POLYESTER 0 1U K 50V 403 311 8909 POLYESTER 0 1U K 50V C613 403 061 9805 POLYESTER 0 047U J 50V 403 312 2104 POLYESTER 0 047U J 50V C614 403 056 9704 POLYESTER 0 01U J 50V 403 311 8602 POLYESTER 0 01U J 50V C624 403 266 4902 CERAMIC 1200P K 1K 403 262 2308 CERAMIC 1200P K 1K C625 403 266 4902 CERAMIC 1200P K 1K 403 262 2308 CER...

Page 15: ...IODE 1S2076A 407 013 7109 DIODE 1S2473 D693 407 099 5501 ZENER DIODE MTZJ6 2C 6 2V 407 057 2801 ZENER DIODE RD6 2EB3 6 2V D801 408 008 2406 DIODE 1N4148 407 013 4306 DIODE 1S2076A 407 013 7109 DIODE 1S2473 D802 408 008 2406 DIODE 1N4148 407 013 4306 DIODE 1S2076A 407 013 7109 DIODE 1S2473 D831 407 222 5903 ZD UDZS TE 173 6B 3 6V D834 407 063 8606 ZENER DIODE MTZJ5 1A 5 1V 407 099 5204 ZENER DIODE ...

Page 16: ...907 TR 2SC945A RA Q693 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 405 157 0505 TR 2SC536NF NPA 405 151 8705 TR 2SC536NG NPA 405 020 7501 TR 2SC945A PA 405 020 7709 TR 2SC945A QA 405 020 7907 TR 2SC945A RA Q695 405 001 7605 TR 2SA1015 Y SAN 405 004 3208 TR 2SA564A R CU 405 004 4809 T...

Page 17: ...2 2 JB 1 2W R496 401 061 1706 OXIDE MT 33 JA 1W R497 401 069 0404 OXIDE MT 6 8 JA 2W R498 401 011 1107 CARBON 68 JA 1 2W R499 401 059 1602 OXIDE MT 15 JA 1W R503 401 026 7002 CARBON 3 9K JA 1 6W R504 401 026 9907 CARBON 4 7K JA 1 6W R505 401 006 8401 CARBON 1 5 JA 1 2W R506 401 025 7409 CARBON 220 JA 1 6W R507 401 006 8807 CARBON 1 8 JA 1 2W R508 401 024 9701 CARBON 12K JA 1 6W R509 401 027 2600 C...

Page 18: ...09 MT GLAZE 1K JA 1 10W R1903 401 162 2800 MT GLAZE 1 8K JA 1 10W R1904 401 150 6100 MT GLAZE 2 2K JA 1 10W R1905 401 256 7605 MT GLAZE 3 9K JA 1 10W R1906 401 162 4101 MT GLAZE 5 6K JA 1 10W R1907 401 256 0408 MT GLAZE 12K JA 1 10W R1909 401 255 6500 MT GLAZE 100 JA 1 10W SWITCHS SW1901 645 006 9673 SWITCH PUSH POWER SW1902 645 006 9673 SWITCH PUSH VOL SW1903 645 006 9673 SWITCH PUSH VOL SW1904 6...

Page 19: ...OR 411 078 1101 SCREW 4X14 4 USED 7 610 275 1857 BUTTON UNIT 8 610 265 3786 CAP RC 9 610 296 5780 DEC SHEET 610 297 8810 OWNER S MANUAL 645 051 9390 ANTENNA ROD 645 051 8508 RC TRANSMITTER OR 645 051 8553 RC TRANSMITTER 610 290 1221 RC BATTERY COVER OR 610 290 1283 RC BATTERT COVER CABINET PARTS LIST KEY NO PARTS NO DESCRIPTION ACCESSORY PARTS LIST KEY NO PARTS NO DESCRIPTION AS VIDEO IN AUDIO IN ...

Page 20: ...837 Q490 D490 R490 C508 J401 J1901 J146 J147 J504 J409 J107 J501 J407 J412 J411 J406 J413 J408 J405 J502 J106 J802 J818 J817 J816 J813 J423 J141 J142 J421 L811 J801 J1902 L812 J424 J281 J444 J282 J809 R142 J402 A1901 L401 R408A C274 C491 R511A K1001 KSP D001 R001 C001 C008 IC001 J101 C011 J161 J132 J001 J256 R401 R496 R499 C497 C1001 R487 Q486 R486 C805 D680 R628 Q681 Q627 C693 Q693 R694 D693 Q695...

Page 21: ...AUTION Part Loc D429 A1 D612 B4 D802 E2 IC001 E2 IC101 D4 IC501 D2 IC601 C5 IC681 B6 IC801 E5 IC802 E6 Q401 B2 Q402 C2 Q486 C4 Q490 C3 Q601 A3 Q611 A4 Q612 A4 Q613 A4 Part Loc Q627 C4 Q635 B5 Q681 B6 Q693 C4 Q695 C4 Q831 E6 R512 E2 R513 E2 TE7 A1 TP7 A1 TJ1 B3 TJ6 D3 TP16 E3 TP21 D3 TP50 A2 TP51 A2 T151 E3 MAIN BOARD COMPONENTS AND TEST POINTS GRID LOCATIONS PIC TUBE SOCKET BOARD COMPONENTS Part L...

Page 22: ... J482 D802 R404 R882 R881 R884 R883 T402H11C C1002 R488 D683 R686 C689 PS601 R601H2 R601A PS601B KD1P KD2P D604 R601H3 R601 R601H1 C606A D603 D601 D602 C606 R602 A1 A2 F601B F601A LF601 LF601A J608 C632A C632 T601H14 T601H7 D612 C633 C633A T601H2 T601H10 H C609H2 C609H1 L602 R603 R617 R618 J601 R604 R612 C608A C608 D611 C611 Q613 D613 R614 C613 C614 C612 R607 Q612 L612 R606 R611 R613 D614 L611 Q61...

Page 23: ...E E B10B0790B 1 5 4 1 SCREEN GND A Q701 Q701A R706 K7B R717 R727 R707 R726 R707A R727A R717A K7U K7U1 C742 R716 K7S K701 K701A R701 C702 Q721A Q721 Q711 Q711A R721 R711 R722 R723 K7Y1 PICTURETUBE SOCKET BOARD ...

Page 24: ...24 March 2002 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 ...

Page 25: ...C801 28 4 9 IC801 29 GND IC801 30 GND IC801 31 GND IC801 32 GND POWER ON POWER OFF IC801 33 4 9 0 IC801 34 N C IC801 35 4 9 IC801 36 5 0 IC802 1 GND IC802 2 GND IC802 3 GND IC802 4 GND IC802 5 4 9 IC802 6 4 9 IC802 7 GND IC802 8 5 0 Device Pin Volts Mode POWER ON POWER OFF D612 1 30 6 10 5 POWER ON POWER OFF D612 2 29 5 9 4 POWER ON POWER OFF D612 3 0 7 0 4 POWER ON POWER OFF D612 4 14 7 1 7 IC001...

Page 26: ...7 R717 R727 R716 R726 R706 C742 K7U K7Y1 R704 R721 R711 R701 K701 K7U1 R728 R718 K7S K7B 2SJ 6 8 1 6NF 3 9K 35EM 220 LBWA J 3 9K 1SJ180 25EM 10LBWA 220 1 2DJ 1 8 160EM 4 7BE 2SJ 18K 2SD2634YB 5SJ 5 6VC J 2SC2271 C D C E C M N 500KK 150A 500KK 1000A DJ5 6K J 4 7K 5 6K 12K DJ470K 1 10GJ 5 6KC 1 10GJ 5 6KC 5 6K 3 9K F1BAM0300 1SJ560 47 U20B32400 U20B35900 1 10GJ 12KC 1 10GJ 5 6KC 1 10GJ 3 9KC 1 10GJ ...

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