Kortek KT-1782DF Service Manual Download Page 36

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9. SCHEMATIC

9-1 MAIN

APPROVAL

CHECKED

DRAWN

GBU6K

D106

18K

R345

18K

R341

18K

R333

C945YC

Q 3 1 1

1.2K

R343

1.2K

R344

C945YC

Q 3 0 9

1.2K

R340

1.2K

R336

C945YC

Q 3 0 7

1.2K

R335

100K

R334

C945YC

Q 3 1 3

1.2K

R348

18K

R337

1.2K

R339

KSP44

Q 7 0 5

0.47U,63V(MP)

C320

0.027U,M

C329

10K

R106

KSC1008

Q 1 0 1

LTV817

IC104

33,1/2W

R133

AN5452

IC105

270K,1/4W

R737

220K

R104

240

R108

6.8K

R105

1 8 0 K , 1 W

R101

1.5K

R711

1000U,16V

C113

470U,16V

C106

4.7K

R113

820K

R110

1000U,16V

C114

A1273

Q 1 0 4

1 K

R123

33K,1/2W

R137

1000P,250VAC(Y1)

C127

1 9 N 2 0

Q 3 1 2

1 9 N 2 0

Q 3 1 0

1 9 N 2 0

Q 3 0 8

1 9 N 2 0

Q 3 0 6

100K

R338

100K

R342

100K

R347

1.5KV

SG701

0.015U,M

C104

0.056U,M

C705

1 K

R103

330K,1/2W

R120

4.7K

R130

0.0047U,M

C126

390,1/4W

R733

6.8K

R316

1 1 N 4 0

Q 3 1 4

0.047U,M

C323

22,1/2W

R361

47U,250V

C344

10U,50V

C316

75K

R320

0.047U,M

C346

750

R359

A733YC

Q 3 0 1

18K

R319

2.4K

R327

0.1U,50V

C333

220U,16V

C331

75K

R332

7.5K

R331

100V,102J(PP)

C335

330K

R318

15,3W

R314

4N20

Q 3 0 4

4 7

R325

1000P,500V

C332

100

R324

12V

80V

12V

220V

12V

220V

12V

220,3W

R352

47,1/4W

R102

33UH

L110

47K

R122

5.6K

R312

18K

R329

100K,1/4W

R738

47K,F

R357

12K,F

R355

1.5K

R114

3.3K,F

R358

T I L T

CN100

1.2K

R346

330

R127

5 6

R535

5 6

R536

A 0

A 1

A 2

GND

SDA

SCL 6

VCC

KS24C04

IC502

+5V

220

R517

5 6

R528

5 6

R530

100

R537

1.2,1/2W

R205

+14V

8mm

CN201

V_IN(-)

V_IN(+)

VCC

GND

V-O

VCC(H)

KA2142

IC201

10K,F

R209

100

R206

-14V

220,1/2W

R207

1.2,1/2W,F

R214

3.3K,F

R212

1.2,1/2W,F

R213

1.,1/2W

R208

3.3K,F

R211

0.0047,M

C208

10K

R210

27K,F

R215

10K,F

R216

C945YC

Q 2 0 1

8.2K

R203

3.3K

R202

22K

R730

12V

2.2K

R731

3.9K

R521

1M,1/2W

R739

2N6520

Q 7 0 6

1 K

R706

5.1K

R702

5.1K

R710

2N3906

Q 7 0 3

200K,1/4W,F

R720

2.2K

R713

6.2K

R701

1 K

R709

2N3904

Q 7 0 1

1 K

R704

390K

R705

C945YC

Q 1 0 5

LF-82

T103

10mm

CN103

0.15U,275V

C121

0.01U,500V

C117

0.01U,M

C107

0.01U,500V

C102

2K,1/4W,F

R107

1,3W

R118

470U,16V

C118

100U,100V

C135

0.1U,M

C125

270,1/4W

R128

22U,50V

C701

47U,50V

C703

5.6K

R703

0.1U,50V

C702

0.22U,100V(MP)

C704

0.01U,50V

C708

0.1U,M

C134

33,1/2W

R134

12K,F

R712

700P,1.6K

C711

10K,3W

R717

10K,3W

R718

47U,50V

C715

220U,100V

C714

0.1U,250V(MP)

C726

180K,1/2W

R729

180K,1/2W

R728

220P,2K

C720

150K,1/2W

R725

0.82U,250V(MPP)

C338

3.9K,1/4W,F

R721

10K,1/4W,F

R719

0.56U,250V(MPP)

C339

0.25U,250V(MPP)

C340

0.1U,250V(MPP)

C341

1000P,500V

C342

330,2W

R349

0.01U,500V

C347

0.01U,M

C318

75,1/4W

R315

4.7,1/4W

R326

0.01U,50V

C337

1U,50V

C322

0.022U,M

C321

330P,50V

C334

0.0027,1.6K(PP)

C328

0.47U,63V(MP)

C319

10,1/2W

R322

10,3W

R323

10U,50V

C324

220U,16V

C325

22P,50V

C516

22P,50V

C517

12MHz

X501

4.7K

R503

4.7K

R504

4.7K

R505

4.7K

R506

4.7K

R507

4.7K

R508

0.1U,50V

C204

0.1U,50V

C206

330U,400V

C115

0.022U,M

C108

1.2,3W

R330

2.2,1/2W

R360

1000P,500V

C345

100P,1K

C348

0.1U,100V(MP)

C716

C945YC

Q 1 0 3

C945YC

Q 3 0 3

14V

2N3904

Q 7 0 2

100P,50V

C210

H-S-I

V-S-I

H-UNLOCK

FC1

PLL2C

HGND

PLL1F

H-POS

H/V-FOCUS

H-FLY

H-REF

COMP

REG-IN

I-SENSE

HEHT

VEHT

VRB

VGA-CAP

VGND

V-CAP

V-OUT

EW-OUT

X-RAY

H-OUT

GND

B-OUT

VCC 29

SCL 30

SDA 31

V-FOCUS 32

TDA9113

IC301

4.7K

R305

560,1/4W

R304

0.15U,M

C311

0.47U,63V(MP)

C313

2.7K

R310

2.7K

R311

1,1/2W

R301

1.2K

R307

100

R302

100

R303

5.1K,F

R306

0.47U,63V(MP)

C309

150UH

L301

120P,50V

C315

3.3U,50V(BP)

C308

20K,F

R308

0.01U,M

C307

0.1U,M

C302

0.01U,M

C304

100V,102J(PP)

C305

+12V

6.8K

R350

D+

PWM2

BRIGHT

PWM0

RESET

VDD

GND

OSC0

OSC1

SDA2

SCL2

DEGAUSS

POWER_OFF

SUSPEND

LED

GND

UN-LOCK

B-G-SEL

V_MUTE

X-RAY

KEY

A-B-G

A-B-R

A-B-B

SDA1

SCL1

PWM8

PWM9

PWM10

PWM11

PWM12

PWM13

V-S-O 33

H-S-O

PWM7

PWM8

PWM5

PWM4

PWM3

H-S-I

V-S-I

D-

WT62P1

IC501

20K,1/4W,F

R356

10mm

CN301

53S250V3.15A

F101

FUSE-CLIP

F101

1U,63V(MP)

C209

0.1U,50V

C502

0.22U,M

C110

100U,16V

C105

GND

OUT

KA7805

IC101

220U,16V

C103

14V-1

390,1/2W

R109

14V

12V

14V-1

-14V

220V

80V

2.2U,450V

C713

6.3V

100

R726

27K

R740

330

R722

15K

R724

12V

22K

R723

COMP

DEAD

C T

R T

GND

E 1

VCC 12

OUT

VREF

- 15

KA7500B

IC701

COMP

VFB

ISENSE

RT/CT

GND

OUT

VREF 8

KA3883C

IC302

0.1U,50V

C122

33U,50V

C123

200K,1/2W

R117

4.7,1/4W

R131

1U,50V

C131

6.8K

R136

1N4148

D117

UF4007

D119

UF4004

D114

100K,1/2W

R115

12V

D102

4.7V

D104

1N4148

D101

1N4148

D116

31GF6

D120

U F 1 G

D110

U F 1 G

D112

UF4004

D107

B D

L105

B D

L103

8D13

T H 1 0 2

B D

L104

1000P,250VAC(Y1)

C111

0.15U,275VAC

C116

B D

L106

UF5404

D105

470U,35V

C119

B D

L109

5 V

B D

L112

1N4148

D703

1N4148

D702

1N4148

D701

1N4148

D706

470

R708

6.8,1/4W

R715

1N4148

D707

GUR460

D708

SSS10N60

Q 7 0 4

GUR460

D709

UF4007

D712

UF4007

D710

UF4004

D711

UF4007

D722

UF4007

D721

10U,250V

C727

BAV21

D719

1N4148

D717

1N4148

D713

1N4148

D714

1N4007GP

D312

BAV21

D316

1N4148

D301

1N4148

D302

U F 1 G

D303

1N4148

D305

1N4148

D304

0.27U,250V(MPP)

C343

UF4004

D315

1N4148

D306

DTV56F

D309

UF4004

D311

4.7K

R525

3.9K

R526

100

R527

100

R529

1 K

R518

27K,F

R522

1 K

R520

1.8K,1/4W

R532

4.7K

R511

4.7K

R510

4.7K

R509

4.7K

R513

4.7K

R512

0.1U,50V

C513

0.1U,50V

C511

2.2K

R501

100

R534

UF4004

D202

1N4148

D201

100P,50V

C504

1N4148

D310

4.7V

D715

B D

L705

0.33,1W

R716

B D

L706

B D

L308

B D

L309

B D

L302

0.0027,1.6K(PP)

C327

B D

L303

1 0 0 K , 1 W

R353

22K

R201

80V

1.2,3W

R321

470U,16V

C205

470U,35V

C207

220U,35V

C203

1U,50V

C202

10U,50V

C514

33P,50V

C507

33P,50V

C508

1U,50V

C505

10U,50V

C501

10U,50V

C515

10U,50V

C301

470U,16V

C303

47U,50V

C314

1U,50V

C312

2.7K

R309

4.7U,50V

C306

9OHM,CASE

T H 1 0 1

8mm

CN101

9
9

HR-CR7

R L 1 0 1

SW402

SW403

SW401

SW404

100

R401

470

R403

1 K

R405

2.4K

R406

LED

D401

1 K

R402

CN401

5 V

3 3

CN502

680P,50V

C326

0.0033U,M

C317

0.01U,M

C706

7.5K

R707

0.01U,M

C101

220P,2K

C712

B D

L108

3.3U,50V,BP

C100

3.3U,50V,BP

C718

KA358

I C 7 0 2 / B

12V

KA358

I C 7 0 2 / A

27K,F

R742

100

R744

5 V

1N4148

D716

1 K

R734

39K

R736

100K

VR701

330P,1K

C310

0.22U,63V(MP)

C336

2.2K

R502

2.2K

R514

2 2

5 5

8 8

11 11

CN13

CN120

12V 5 V 6.3V 80V

6.3V

100

R523

14V

220P,2K

C722

15,3W

R732

DFT-82

T702

0.01U,250V

C724

KA78R12

IC103

47UH

L701

330

R404

100U,16V

C728

B D

L702

80V

1500P,2K

C709

33,7W(

지지대

)

R714

200K,1/2W

R121

12V

1N4148

D704

2.2K

R735

5 V

4.7K

R743

10K,1W

R727

3.3U,50V,BP

C719

0.0022U,M

C330

KA431

IC102

0.01U,M

C109

5.6V

D553

5.6V

D552

5.6V

D550

1N4148

D556

1N4148

D555

1N4148

D554

1N4148

D551

5 V

1000P,50V

C503

100P,50V

C506

220U,16V

C707

220K,1/2W

R125

220K,1/2W

R126

47U,250V

C124

1000P,250VAC(Y1)

C112

220P,2K

C129

120K,1/2W

R116

470P,1K

C120

UF4007

D111

DTV56F

D313

1000P,250VAC(Y1)

C128

2SC5584

Q 3 0 2

10U,50V

C710

31GF6

D121

31GF6

D115

VFB

VCC

VS/S

DRAIN

GND

6S1265R

IC106

4.2UH,17T

L304

6.8UH

L703

H V

H F

V F

FQM19A002

T701

GTT-82

T301

HDT-82

T302

SPT-82

T101

SCT-82

T102

2 2

5 5

SIGNAL-IN

CN503

4.7U,50V

C717

UF4004

D307

15K

R217

A733YC

Q 3 0 5

A733YC

Q 7 0 7

S 1

S 2

S 3

S 4

DEGAUSS

H-LIN-F

H-LIN-S

H-LIN_IN

H-FLY

P-OFF

SUSPEND

H-DRIVE1

FOCUS-H

FOCUS-V

H/V

H-DRIVE1

H-SIZE

H-DRIVE

SCL

SDA

DEGAUSS

SUSPEND

LED

KEY

X-RAY

V-OUT1

V-OUT2

V-FLY

V-BLK

V_SYNC-O

SDA

SCL

V-FLY

H/V_ADJ

H_SYNC-I

V_SYNC-I

V-FOCUS

SDA

SCL

H-SIZE

V-OUT1

H-OUT

UN-LOCK

H-LIN-F

H-LIN-S

V-FOCUS

H-FLY

ACL

ACL_IN

V_SYNC-I

H_SYNC-I

SELF-RASTER

V_SYNC-O

H_SYNC-O

CLAMP

DDC-SCL

DDC-SDA

S 3

S 4

H/V-ADJ

S 1

S 2

MUTE

H-SIZE

TILT

H_LIN

H-FLY

V-OUT2

P-OFF

LED

KEY

TILT_IN

MUTE

CLAMP

ACL
SCL
SDA

H-FLY

V-FLY

ACL

X-RAY

BEAM-PROTECTION

UN-LOCK

V_SYNC-I

H_SYNC-I

SEF-RASTER

DDC-SCL

DDC-SDA

SCT-82

T303

MPP

LINEARITY COIL

V-DY

H-DY

3 W

DE-COIL

FUSEABLE

OPTION

~33k

34~36k

37~42k
43~50k
51~58k

59~66k
67~73k
74k~

S 1 S 2 S 3 S 4

1
2

3
4
5

6
7
8

C/S TABLE

E B

C B

A733
C945

2N3904
C1008
KSP44

2N3906
2N6520
A1273

15*10*30

FUSEABLE

Summary of Contents for KT-1782DF

Page 1: ...SERVICE MANUAL COLOR CRT MONITOR KT 1982F KT 1982DF KT 1782F KT 1782DF KT 2182F KORTEK CORPORATION DOC NO KT XX82X SM DATE 2004 02 02 REV NO 0 REV DATE ...

Page 2: ...TIONS 3 2 PRODUCT SPECIFICATION 6 3 OPERATING INSTRUCTION 9 4 ADJUSTMENTS 11 5 TROUBLE SHOOTING GUIDE 19 6 PART LIST 29 7 BLOCK DIAGRAM 34 8 CONNECTING DIAGRAM 35 9 SCHEMATIC 36 10 PRINT CIRCUIT BOARD 38 CONTENTS ...

Page 3: ...tage can produce potentially hazardous X Ray RADIA TION To avoid such hazards the high voltage must be above the specified limit The nominal value of the High voltage of this Monitor is 26KV 0 3KV at zero beam current minimum brightness under a 120V AC power source The High Voltage must not under any circumstances exceed 29KV Each time a monitor requires servicing the High Voltage should be checke...

Page 4: ...Watt resistor paralleled by a 0 15Uf capacitor in serial with an exposed metal chassis part and a known earth ground such as an electrical conductor and electrical ground connected to a earth ground c Use a SSVM or VOM with 1000 ohms per volt or sensitivity to measure the AC voltage drop across the resistor d Connect the resistor to an exposed metal part having a return path to the chassis metal c...

Page 5: ...the wrong direction may cause excessive X ray emissions WARNING 3 An electrolytic capacitor installed with the wrong polarity might explode 1 Servicing precautions are printed on the chassis and should be followed closely 2 Always unplug the units AC power cord from the AC power source before attempting to a remove or reinstall any component or assembly b disconnect PCB plugs or connectors c conne...

Page 6: ...V 60 50 3Hz Power Consumption Nomal Operation Input Current at 120V Input Current at 240V 100 Watts Operating 1 5Amps rms Turn on 30Amps Peak Operating 0 8Amps rms Turn on 60Amps Peak Linearity Cross Pattern Horizontal 5 Vertical 5 Environment Temperature Humidity Operating 0 to 40 Storage 40 to 60 Operating 10 to 85 Storage 5 to 95 KT 1982F KT 1982DF KT 1782F KT 1782DF KT 2182F Tube 19 Normal fla...

Page 7: ...UB SIGNAL CABLE SPECIFICATION PIN NO PIN NAME 1 RED 2 GREEN 3 BLUE 4 GND 5 GND DDC 6 R GND 7 G GND 8 B GND 9 N C 10 SELF RASTER 11 GND 12 SDA DDC 13 H SYNC 14 V SYNC 15 SCL DDC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ...

Page 8: ...0 508 0 119 0 635 POL NEG NEG POS POS POS POS POS NEG POS NEG NEG POS NEG POS V f Hz 70 087 59 940 86 906 72 809 60 317 75Hz 72 188 60 00 85 061 70 00 60 00 84 997 75 025 100 00 O mS 14 268 16 683 11 50 13 735 16 58 13 333 13 853 16 667 11 756 14 272 16 640 11 765 13 329 10 000 P mS 0 064 0 064 0 113 0 079 0 11 0 064 0 125 0 124 0 056 0 106 0 047 0 044 0 038 0 037 Q mS 1 080 1 048 0 563 0 740 0 61...

Page 9: ... 9 3 1 FRONT FRAME 3 2 MAIN PCB ASS Y 3 Operating Instruction KORTEK STANDARD FRAME X FRAM MAIN PCB SOCKET PCB CONTROL PCB ...

Page 10: ... the MENU disappears This button is used to select the control item on the MENU In MENU the control item could be selected and unselected by this button EXIT This button is used to exit the value of any selected control UP This button is used to increase the value of any selected control This button is used to locate to the next control item for select DOWN This button is used to decrease the valu...

Page 11: ...hout signal Adjustment 26KV 0 3KV PROCEDURE Disconnect the AC line cord from the power source Connect positive end of High Voltage probe to anode cap of CRT negative end of to GND main chassis First of all Disconnect AC cord and than disconnect High voltage probe 5 Screen Voltage signal 1024 x 768 48KHz Full white Bright max Contrast max Adjustment SAMSUNG SDI 580 10V 4 1 2 TURN ON THE FACTORY OSD...

Page 12: ...3 Press the MENU SELECT button 4 UP or DOWN button is used to control the value of any function 5 When you press exit button the MENU disappears 4 2 1 Screen center adjustment width 21 400mm 19 360mm 17 320mm height 21 300mm 19 270mm 17 240mm signal 1024 x 768 48KHz A B 4 0mm C D 4 0mm a Horizontal size adjustment adjustment use to H SIZE BRIGHTNESS 31 4KHz 60Hz DISPLAY AREA SQUARE CORNER A D C B ...

Page 13: ...to H POS d Vertical position adjustment 4 2 2 Trapezoid adjustment frequency all mode signal pattern cross hatch 4 2 3 Pin balance adjustment frequency all mode signal pattern cross hatch 4 2 4 Parallelogram adjustment frequency all mode signal pattern cross hatch A B A B A B 2 5mm D1 D2 D1 D1 D2 1mm 5mm ...

Page 14: ...m 4 2 6 Tilt adjustment frequency all mode signal pattern cross hatch brightness MIN cut off contrast MAX 4 2 7 Degaussing adjustment Don t adjust the degaussing Degaussing is possible in OSD adjustment menu After using this function once You must use again after at least 30minutes 4 2 8 SAVE ADJUSTMENT CONDITION REMOVE USER MODE D1 C1 C2 D2 ...

Page 15: ...dition frequency 48KHz 60Hz 1024 x 768 display pattern back raster pattern brightness MIN cut off contrast MAX 1 Select factory mode 2 Select COLOR TEMP with UP DOWN key 3 Select 9300K 4 Adjust back raster brightness to 0 2 0 8 F L with VR701 5 Select B B with UP DOWN adjust y 0 311 and do the next selection with EXIT key 6 Select R B with UP DOWN adjust y 0 281 and do the next selection with EXIT...

Page 16: ... Select contrast icon with UP DOWN key adjust contrast to 50 60f l with UP DOWN key 8 Select ACL key A C in full white pattern and adjust ACL to 28 30f l attention If 50f l doesn t adjust in 20 window adjust G G again with DOWN key 4 3 3 color adjustment 6500K a white balance adjustment 1 Select factory mode 2 Select COLOR TEMP with UP DOWN key 3 Select 6500K front cabinet back raster 20 window pa...

Page 17: ...MIN cut off contrast MAX Measure nine brightness display in the screen 4 3 5 Focus adjustment set condition frequency 48KHz 60Hz 1024x768 display pattern H character brightness min cut off contrast max 1 Adjust in focus of whole screen to be the best fitted with FOCUS V R in FBT 4 3 6 PURITY adjustment Purity is that unnecessary colors appear in the screen except displayed color Don t appear unnec...

Page 18: ...rection east frequency included timing chart display pattern full white brightness MIN cut off display center Most suitable RED x 0 640 0 015 y 0 323 0 015 GREEN x 0 295 0 015 y 0 594 0 015 BLUE x 0 142 0 015 y 0 066 0 015 ...

Page 19: ...4V 12V 6 3V 5V Lines Does each output appear Measure 80V output between cathode of D120 and Ground Does appear 80V DC Check and replace F801 D801 IC811 IC812 Check and replace D115 D121 D120 D107 IC103 IC101 Check Video and Horizontal circuits 5 1 1 No Raster No Video NO YES Check S1 S2 S3 S4 signals refer to S correction table on the schematic S1 S2 S3 S4 signal are right at each frequency block ...

Page 20: ... 1 2 Replace CRT and verify purity YES YES NO NO Check degauss Connector CN101 Check output voltage at pin 12 of IC501 Normal 0V Degaussing 5V Does DC voltage right Check and replace Q101 D101 RL101 R106 Replace IC501 YES YES NO 5 1 3 Degaussing failure 5 1 3 Purity failure ...

Page 21: ...e convergence now within spec YES NO NO YES NO NO 6 1 6 Misconvergence Failure Check tilt connection CN100 IC 501 pin 35 output varies with different values DC 0V 5V Check and replace R COIL of the CDT Check and replace IC105 Check and replace IC501 IC105 pin 10 11 output varies with different values DC 1 5V 7 5V YES NO NO YES 5 1 4 Tilt Failure ...

Page 22: ... and replace D708 709 Pin 9 of IC701 pulse exist Replace IC701 YES NO YES NO NO YES YES NO NO 6 1 8 High Voltage Failure Check pin 36 of IC501 output varies with different value DC 0V 5V Check pin 7 8 of IC105 output varies with different value DC 1V 6V Check and replace IC501 Check and replace IC105 Check L304 output varies with different value NO YES YES NO 6 1 7 H Linearity Failure L304 Q701 Q7...

Page 23: ...y 2 5V Check and replace R401 R403 R405 R406 NO 5 1 9 User control Failure Check the wave form at Q705 Collector Does appear parabola wave form Check and replace IC301 Does IC301 32 pin wave form exist Check and replace R725 C720 T702 wave form is right Try Readjusting double Focus Done Check and replace T702 Replace the CRT and verify focus YES NO NO YES YES NO NO IC301 32 pin T702 ...

Page 24: ...Q707 12V Check and replace pin 12 of the IC802 NO YES YES 5 1 12 ACL Failure Is G2 voltage 580 50V right Check G2 control voltage and FBT Does Q201 collector pulse 35Vp p exist Check 80V Line and D719 C726 Does Q201 base drive wave form exist Check The G1 Check and replace IC201 NO YES NO YES NO YES 5 1 11 Visible Retrace Q201 COLLECTOR G1 IC501 2pin PWM ...

Page 25: ... Does flyback pulse at collector of Q302 appear Check the Pin 26 of IC301 Does 12Vp p pulse appear Check D309 D311 and 80V Line Check and replace IC301 Does the wave form at pin 8 of T302 appear Check and replace Q304 Q303 Q305 Check the voltage PIN 7 of IC302 Does 12V DC appear Check the 12V line Check heater voltage 6 3V YES YES YES YES 5 1 14 No Raster NO NO NO NO NO Does the wave form at pin 4...

Page 26: ...ght Check and replace IC802 IC803 Pin5 Pin3 Pin1 video output are right Check IC803 and 12V 80V Line R G B cathode wave forms are right Check D805 807 and D814 D816 G2 voltage are right 580 50V Check G2 CDT socket FBT G1 voltage are right 45 10V Check and replace CRT YES YES YES YES YES YES YES 5 1 15 No Video NO NO NO NO NO B OUT Cathode wave form ...

Page 27: ...ENU botton IC501 Pin7 Pin8 wave forms are right Check IC501 and SDA SCL Line Check and replace IC802 NO YES YES NO YES YES NO 5 1 17 OSD failure IC 301 Pin24 output parabola level variable Check and replace IC301 and 12V 80V Line Does T303 Pin8 pulse is appear Check and replace T303 Check some parts around T301 are they OK Check and replace Q314 NO YES YES NO YES 5 1 16 Abnormal Invariable H size ...

Page 28: ...appear at Pin5 of IC201 Refer to No power supply IC 301 Pin 13 Pin 23 output exist IC 501 Pin 33 output exist Check and replace IC301 Check and replace IC201 YES NO YES NO YES Check and replace IC501 NO 5 1 18 V deflection failure IC201 6 pin IC201 1 pin ...

Page 29: ...0478T KME 50V 47 UFT P CAP ELECT 3 EA C314 C703 C715 1 26 81590121T DC50V SL 121UF J T P CAP CERAMIC 1 EA C315 1 23 70B90332T 100V 332J T P CAP MYLAR 1 EA C317 1 23 70B90103T 100V 103J T P DI OY CAP MYLAR 1 EA C318 1 23 70B90473T 100V 473J T P CAP MYLAR 3 EA C323 C346 C716 1 26 81590681T DC50V SL 681PF J T P CAP CERAMIC 1 EA C326 1 23 33R90272B DTMS YPN 1 6KV 272J CAP METAL 2 EA C327 C328 1 23 70B...

Page 30: ...ORE 1 EA L702 1 34 1504R7001 4 7UH COIL CHOKE KT 1982 1 EA L703 1 39 220510001 KT XX82 REV NO 7 MAIN PCB 1 EA MAIN PCB 1 30 3M1008TAX KSC1008 Y TR 1 EA Q101 1 30 3M0945TAX KSC945C Y TR 8 EA Q103 Q105 Q201 Q303 Q307 Q309 Q311 Q313 1 30 2P1273TBX KTA1273 Y TR 1 EA Q104 1 30 1J0733TAX KSA733C Y TR 2 EA Q301 Q305 1 30 4F5584BNX 2SC5584 FJL6820TU TR 1 EA Q302 1 30 8Z0008BDX FQP4N20 FET 1 EA Q304 1 30 8...

Page 31: ...1000J4A 1 6W 100 KOHM RES CARBON 4 EA R334 R338 R342 R347 1 21 308200JCB 2W 82 OHM RES MOR 1 EA R349 1 21 312200JEF 3W 220 OHM RES MOR 1 EA R352 1 21 131200F4A 1 6W 12 KOHM1 RES METAL 2 EA R355 R712 1 21 132200F5A 1 4W 22 KOHM1 RES METAL 1 EA R356 1 21 117500J4A 1 6W 750 OHM RES CARBON 1 EA R359 1 21 8002R2J8A 1 2W 2 2 OHM RES FUSEBLE 1 EA R360 1 21 802200J8A 1 2W 22 OHM RES FUSEBLE 1 EA R361 1 21...

Page 32: ... DIODE 1 EA D823 2 11 WT6802XAA WT6802 IC OSD 1 EA IC801 2 11 KA2506XAA KA2506 IC PREAMP 1 EA IC802 2 11 LM2405TBA LM2405T IC PREAMP 1 EA IC803 2 43 880052R0T 52 mm TAPING JUMP WIRE 21 EA J801 J807 J811 J819 J821 J825 2 34 240470001 CFI06B1H470MF EMI FILTER 3 EA L801 L804 L806 2 34 22030R47X AL03 TB0 47K 0 47UH INDUCTORS 3 EA L802 L803 L805 2 30 3B3904TAX 2N3904 TA TR 2 EA Q801 Q802 2 30 2Z0033TAX...

Page 33: ...J 250V 474J 250V 424J 250V 684J 250V 3 C340 CAP MPP 254J 250V 224J 250V 204J 250V 204J 250V 254J 250V 4 C341 CAP MPP 104J 250V 823J 250V 104J 250V 104J 250V 104J 250V 5 C343 CAP MPP 274J 250V 274J 250V 204J 250V 204J 250V 394J 250V 6 C724 CAP MPP 103J 250V 103J 250V 103J 250V 103J 250V 473J 250V 9 R321 RES METAL F 1 2 3W 1 2 3W 1 2 3W 1 2 3W 1 0 3W 10 R314 RES METAL F 15 3W 15 3W 15 3W 15 3W 4 7 3...

Page 34: ...ICAL OUTPUT KA2142 TLIT CONTROL TILT COIL DEFLECTION YOKE VIDEO AMP KA2506 HIGH VOLTAGE REGULATION OSD PROCESSOR WT6802 VIDEO OUTPUT LM2405 CUT OFF CONTROL SIGNAL INPUT MICRO CONTROLL ER UNIT WT62P1 ADJUS T KEY DDC 2BI H V SIZE H V POSI S PIN TRAP PARA PIN BAL ACL TILT DEG LED CONTROL H V SYNC INPUT DPMS OUTPUT SUSPEND OFF S CORRECTI ON CIRCUIT S1 S4 SYNC PROCESSOR TDA9113 or STV6888 I C I C I C I...

Page 35: ... 2 AC AC 1 2 AC AC POWER CORD DEGAUSSING COIL 1 GND 2 KEY 3 LED 4 5V 1 GND 2 KEY 3 LED 4 5V 1 GND 2 SDA 3 SCL 4 SELF 5 V SYNC 6 H SYNC 15P D SUB CABLE 1 2 3 TILT TILT TILT TILT CN100 CN103 CN101 CN502 CONTROL PCB CN503 FBT CN120 HI VOLTAGE H FOCUS V FOCUS G2 CN801 SOCKET PCB CN401 R 1 R GND 2 G 3 G GND 4 B 5 B GND 6 ...

Page 36: ...16V C103 14V 1 390 1 2W R109 14V 12V 14V 1 14V 220V 80V 80V 2 2U 450V C713 6 3V 100 R726 27K R740 330 R722 15K R724 12V 22K R723 1 2 C O M P 3 D E A D 4 C T 5 R T 6 G N D 7 C1 8 E 1 9 C2 10 C2 11 V C C 12 O U T 13 V R E F 14 15 16 KA7500B IC701 C O M P 1 VFB 2 ISENSE 3 RT CT 4 G N D 5 O U T 6 VI 7 V R E F 8 KA3883C IC302 0 1U 50V C122 33U 50V C123 200K 1 2W R117 4 7 1 4W R131 1U 50V C131 6 8K R136...

Page 37: ...M C 8 0 8 1 2 K R 8 5 4 1 0 0 R 8 5 5 1 0 0 R 8 6 0 6 8 0 R 8 1 2 1 N 4 1 4 8 D 8 0 1 1 0 K R 8 0 5 1 2 3 2 N 3 9 0 4 Q 8 0 2 1 K R 8 0 7 1 K R 8 0 1 5 V 1 1 2 2 3 3 5 5 4 4 6 6 C N 8 0 2 8 0 V 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 1 0 1 0 1 1 1 1 1 2 1 2 1 3 1 3 C N 8 0 1 6 3 V 5 V 1 2 V B D 8 0 1 3 3 U 5 0 V C 8 3 4 2 2 0 U 1 6 V C 8 1 5 1 2 3 2 N 3 9 0 4 Q 8 0 1 6 8 0 R 8 0 2 5 V 4 7 U 1 0 0 V C ...

Page 38: ... 38 10 PRINT CIRCUIT BOARD 10 1 MAIN 196mm 246mm ...

Page 39: ... 39 10 PRINT CIRCUIT BOARD 10 2 VIDEO 107mm 150mm 30mm 128mm 98mm ...

Page 40: ... 40 110mm 13mm 248mm 61mm 82 5mm 13 8mm 84mm 196 8mm 68mm 60 5mm 68 3mm 10 3 PCB DIMENSION 10 PRINT CIRCUIT BOARD ...

Page 41: ... 41 84 5mm 68 5mm ...

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