Toshiba 20A3VX Скачать руководство пользователя страница 27 | Manualshive

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MAIN BOARD PD0

394

BOTTOM (FOIL) SIDE

PV01

T461

Q404

P570

DB01

QA01

QA02

KB01

S801

R810

T862

Q801

C810

Q301

Q501

SA02

SA03

D801

P661

P910

R808

Q432

T401

L441

C442

C467

C444

D444

C440

D440

R441

C448

Q862

D812

C820

R821

C829

C808

R805

R803

R802

R899

R442

Q402

C417

R411

R410

G410

C463

R412

L805

C806

C805

L806

D805

D809

R416

C885

D885

R888

C889

L886

C893

L883

D883

C884

L885

M502

D406

R333

C445

R448

R447

C446

R470

F470

D302

C317

RB28

C310

R430

D408

C449

R479

Q470

R474

C472

R471

D881

R881

R883

R884

Q883

C891

G882

R891

D818

C470

C818

R432

Q430

D846

C435

R435

D431

Q846

R848

R846

R841

C846

R473

Q818

D470

Q817

C819

D370

C371

Q819

R816

R817

R819

Q840

Q421

R370

D301

C308

Q370

R227

R372

C370

R374

G218

R371

CB21

QB21

CB20

RB27

C410

D441

R373

G303

C311 C314

C309

C306

C313

L302

L301

C307

R306

C320

C305

R307

R304

R305

R312

R336

R375

R313

QB20

R301

RB20

H001

XA01

RA61

RA65

RA64

RA14

RB43

RV03

RA07

RA04

RA35

QB01

RB11

RB01

RA05

CB01

RB09

CA68

CA69

RB44

QB40

RA19

RB45

RA15

GA02

RA33

RA71

RA70

RA16

RA17

RA18

C843 C842

C841

R840

DA42

CA42

CA43

LA01

RA22

RA23

RA24

RA25

RA26

RA27

CA33

RA36

RA68

RA37

CA37

CA38

RA38

RA40

RA41

RA74

L887

C630

D621

Q620

D622

D620

C612

P601

Q612

R612

D612

R663

QS01

CS02

RS05

RS02

CS08

RS03

G102

C102

C101

R310

L102

R102

Q830

C182

R818

C421

D421

R421

R830

C832

C181

L183

X501

C180

C526

C521

C523

C522

C167

C166

C516

Z130

R153

R152

D150

C129

Q101

L103

R104

R105

C118

R101

R154

R103

C108

Q131

Q130

R151

R157

C150

R523

C528

C524

C512

C221

R228

C222

M501

D224

C224

RA31

RA32

C302

C525

L525

G316

C168

L161

QV01

C161

R167

C430

C431

C162

C517

R218

R434

L430

D403

R132

C404

L511

C216

R216

R134

L108

Z103

L106

Z102

L107

R130

R129

C212

C403

D830

R831

R144

C511

CV12

R402

Q108

GJ02

Q610

C801

F801

P802

RA06

RA13

C814

C813

RA12

GA24

GA21

GA22

GA23

R405

R408

C408

R156

RV01

C409

RA10

C420

C439

C226

C811

GJ16

GJ17

GJ15

GJ20

C899

R801

SL01

GJ01

D433

RA60

C170

R170

TP14

R209

Q209

R

V14

R127

C225

RV02

RA75

QB60

QB61

C318

G883

D498

L499

C401

T801

CA25

RA21

CA24

CA23

CA22

C527

R308

R525

RA02

RA03

RA01

PV02

SA04

L501

R118

GJ07

GJ08

L110

L111

C104

C103

C105

D101

R106

C106

RS11

RV18

RV17

DV01

QS04

QS02

RS01

CS01

RS15

RS16

RS17

RS18

QV10

RV11

RV12

RV13

RV09

CV10

CV09

RS10

RS09

RS08

RS07

RS06

CS03

QS05

RS19
RS20
RS21

RS26

CS09

CS13

CS12

QS06

RS22

RS23

RS24

RS25

CS10

CS11

CS14

RS04

RS12

RS13

RS14

CS07

CS06

CS05

CS04

CV01

GJ03

GJ04

R158

L150

R136

C605

C898

L814

L811

C817

G810

R820

R829

C823

D810

C822

D815

D806

G812

D817

D819

C821

R826

R814

R823

R804
R807

R809

R824

F802

Z802

R815

R629

RA73

R433

LA02

CA02

CA01

GJ24

RA42

RA39

CA98

D

A62

DA61

DA63

D

A60

DA64

D490

D436

R490

GJ35

GJ33

R662

R133

GJ10

R137

GJ50

R135

QF01

GJ43

GJ45

R131

L109 C165

C164

R145

ZF06

GJ52

ZF05

GJ51

ZF04

ZF03

ZF02

ZF01

RF07

RF06

RF05

RF04

QF02

LF01

CF01

CF02

RF02

RF03

RF01

CF04

GJ53

RF11

RA20

C615

C621

D111

GJ22

GJ21

RA69

QB62

R125

R511

C120

R409

L431

C433

C432

L432

CV11

R

V16

R

V15

QV11

R199

C505

C504

L502

R233

C233

C301

C303

R124

R123

QF03

RF08

RF10

RF09

RF12

CF03

R603

C607

C628

C606

C608

C617

C609

GJ18

GJ25

C616

C629

R606

R607

C613

C611

C610

C614

R608

R609

R605

R604

Z470

QA51

RA50

RA51 CA51

CA52

RA52

RA53

QA52

RA54

RA55

CA53

CA54

CA55

RA56

RA57

QV08

RV08

DT01

QT01

CT17

CT14

LT01

LT02

CT07

XT01

CT08

CT09

RT03

R

T04

RT28

L

T10

L

T06

LT07

LT09

LT08

RT05

QT02

R

T13

CT13

CT06

QT03

L

T04

R

T16

CT04

CT01

CT02

CT03

RT17

QT04

R

T20

RT19

CT16

RT18

QT05

CT15

L

T15

R

T21

CT21 CT20

Q310

Q311

CT12

CT11

CT10

RT14

CT05

RT02

RT01

LT03

QT06

LT05

QT07

RT30

R

T31

RT29

GJ30

R

T27

RT43

RT40

R

T38

R

T48

R

T47

R

T46

R314

R

T39

R

T32

R

T34

R

T33

D310

R117

G370

C116

DB30

QB30

Q843

MV01B

MV01A

R528

R527

R526

Q302

Q303

Q304

R302

R303

R309

D303

D304

D305

GJ54

D221

D222

D223

B

E

C

1

2

3

4

5

6

7

8

9

10

5

15

22

30

35

42

1

3

5

2

4

1

5

10

15

28

29

35

40

50

56

1

5

C

B

E

7

8

10

9

10

11

12

14

13

B

B

E

+

+

+

+

+

+

+

+

C

B

E

+

B

E

B

E

1

E

+

+

+

E

B

1

4

5

8

+

+

E

+

E

B

E

B

E

C

+

+

24

20

2

+

1

7

+

+

+

+

+

+

PD0378

+

+

T3.15A L/250V

T500mA L/250V

+

+

B

1

2

BROWN

BLUE

CAUTION LIVE AREA

MCL-437F

10

6

E

4

5

T2.0A L/250V

MENU

UP

DO

WN

1

27

40

45

52

B

E

B

E

B

E

B

1

5

8

+

+

+

+

10

20

+

+

E

+

35

4

B

E

B

E

5

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

1

2

3

4

+

+

+

+

+

+

+

+

12

+

+

+

+

+

+

+

+

+

+

B

C

E

+

C

E

E

+

+

IN

OUT

GND

E

B

B

E

E

B

E

B

B

E

E

B

C

E

B

E

C

B

+32V

E

B

E

B

E

B

B

E

B

E

B

E

B

E

B

E

B

4

E

B

+

B

E

C

B

G

B

E

C

M804B

+

E

B

2

3

4

5

7

16

15

14

13

12

11

10

9

8

1

+

+

1

6

+

1

8

9

16

+

B

B

B

E

E

+

2

4

5

6

E

45

B

B

E

M804A

NC

ADR

SCL

SD
A

NC

NC

IF

+5V

AGC

NC

15

26

1

16

9

5

1

5

3

2

4

GJ11

Z801

2

3

C897

L661

RS31

RS32

1

RS34

RS33

C699

CS98

RS98

RS99

CS99

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Содержание 20A3VX

Страница 1: ...SERVICE MANUAL COLOUR TELEVISION Dec 2003 FILE NO 040 200117 S1E Chassis 20A3VX ...

Страница 2: ...ODE 6 DESIGN MODE 9 ELECTRICAL ADJUSTMENTS 10 CIRCUIT CHECK 15 CHAPTER 2 SPECIFIC INFORMATIONS SETTING ADJUSTING DATA 16 LOCATION OF CONTROLS 17 PROGRAMMING CHANNEL MEMORY 18 CHASSIS AND CABINET REPLACEMENT PARTS LIST 20 PC BOARDS BOTTOM VIEW 27 TERMINAL VIEW OF TRANSISTORS 30 CIRCUIT BLOCK DIAGRAM 32 SPECIFICATIONS End APPENDIX CIRCUIT DIAGRAM ...

Страница 3: ...e attempted by anyone unfamiliar with the necessary precautions on this receiver The following are the necessary precautions to be observed before servicing this chassis 1 An isolation transformer should be connected in the power line between the receiver and the AC line before any service is performed on the receiver 2 Always discharge the picture tube anode to the CRT conductive coating before h...

Страница 4: ...ECTION YOKE TEMPORARY MOUNTING RUBBER WEDGE ADHESIVE DEFLECTION YOKE PURITY CONVERGENCE MAGNET ASS Y 29 1mm 28 29 25mm 25 19mm 19 20 21 14mm 13 14 Figure 1 COLOUR PURITY ADJUSTMENT NOTE Before attempting any purity adjustments the receiver should be operated for at least fifteen minutes 1 Demagnetize the picture tube and cabinet using a degauss ing coil 2 Set the brightness and contrast to maximum...

Страница 5: ...1 Do not remove cover paper on adhesive part of the wedge 3 Tilt front of the deflection yoke up or down to obtain better convergence in circumference See figure 3 Push the mounted wedge into the space between picture tube and the yoke to fix the yoke temporarily 4 Put other wedge into bottom space and remove the cover paper to stick 5 Tilt front of the yoke right or left to obtain better conver g...

Страница 6: ...data value Volume on TV or Remote Adjustment menu mode ON OFF MENU button on TV Initialization of the memory QA02 CALL Channel button on TV s Reset the count of operating protect circuit to 00 CALL Channel button on TV t RCUT selection 1 button GCUT selection 2 button BCUT selection 3 button CNTX or SCNT selection 4 button COLC selection 5 button TNTC selection 6 button Test audio signal ON OFF 1k...

Страница 7: ... item 2 Press and hold the CALL button on the Remote then press the CHANNEL s button on the TV The initialization of QA02 has been complated 3 Check the picture carefully If necessary adjust any adjustment item above Perform Auto search Memory on the owner s manual CAUTION Never attempt to initialize the data unless QA02 has been replaced 7 TEST SIGNAL SELECTION 1 Every pressing of a button on the...

Страница 8: ...d colour of mode now selected Green and Red Indicated colour of other modes White Green Normal Red The microcomputer operates to provide judgement of no video signal The red colour is still indicated though the signal is input failure may exist in input signal line including QV01 QV01 In case of indication green Normal In case of indication red with input signal Failure may exist in output line in...

Страница 9: ...ign mode changes the adjustment items in the order of table 3 s button for reverse order Refer to table 3 for data of design mode See SETTING ADJUSTING DATA on page 16 3 ADJUSTING THE DATA Pressing of VOLUME s or t button will change the value of data When QA02 is initialized items OPT0 and OPT1 of DESIGN MODE are set to the data of the representative model of this chassis family Therefore because...

Страница 10: ... the difference between the belt of vertical retrace and the border of black portion of inside pattern is visible After that return vertical height and contrast ITEM ADJUSTMENT PROCEDURE Belt of vertical retrace HORIZONTAL POSITION ADJUSTMENT HPOS VERTICAL POSITION ADJUSTMENT VPOS 1 Set the TV in service mode and get black or white cross bar signal with VIDEO button on remote hand unit 2 Select ei...

Страница 11: ...on screen Note Every pressing of button provides Horizontal line picture and Normal picture alternately 5 Press button to release horizontal line picture and select the two other colours which did not light in the above step with CHANNEL s t buttons Then tap VOLUME buttons so that three colours slightly light in the same level X To correct white balance in light area select GDRV and BDRV with CHAN...

Страница 12: ...ay 2 0 1 0V at TP14 12 On screen display RFAGC OK Coil OK 13 Power Off AFT SPEC 2 5 0 5V TP13 AGC SPEC 2 0 1 0V TP14 2 SUB COLOUR CONTRAST SCNT Measuring point Adjusting signal NO ADJUSTMENT Adjusting method 3 SUB BRIGHT BRTC Adjusting signal Sub Bright PAL or NTSC signal Adjusting method 1 Set user control to the standard 1 2 Change BRTC data to set black collapse numbers by eye check SPEC 4 1 5 ...

Страница 13: ...ial value 20H GCUT Initial value 20H BCUT Initial value 20H 3 Set the mode to the one horizontal line mode MUTE BRIGHT 4 Change SCREEN VR to set it so that one of the line R G and B will light slightely 5 Change CUT OFF data to set it so that each one of R G and B will light slighty for about white 6 Release the H Line mode 7 Change B G drive data and R G B CUT OFF data to adjust white balance in ...

Страница 14: ...WG Philip Pattern Do not use French SECAM Measurement place On Picture Setting Contrast Max Bright Center Colour Center Adjusting method Adjust VPOS upper and lower position on Philips pattern may become a center Turn the direction of CPT to the south or the north when adjusting Adjust the amount offsetting if it is not possible to do 13 VERTICAL HEIGHT Input signal WG Philip Pattern Do not use Fr...

Страница 15: ...n accurate high voltage meter to the second anode of the picture tube 2 Turn on the receiver Set the BRIGHTNESS and CONTRAST controls to minimum zero beam current 3 High voltage must be measured below B kV Refer to table 1 for high voltage B See SETTING ADJUSTING DATA on page 16 4 Vary the BRIGHTNESS control to both extremes to be sure the high voltage does not exceed the limit under any condition...

Страница 16: ...Data Item Name of adjustment Preset Data 20 Remarks Table 3 There are no adjusting items in the design mode Item Adjustment Reference data RCUT GCUT BCUT GDRV BDRV BRTC COLC TNTC COLP COLS SCNT HPOS VPOS HIT VLIN SRY SBY RAGC R CUTOFF B W G CUTOFF B W B CUTOFF B W G DRIVE B DRIVE SUB BRIGHT CEN SUB COLOUR CEN NTSC SUB TINT CEN SUB COLOUR CEN PAL SUB COLOUR CEN SECAM SUB CONTRAST 50Hz H POSITION V ...

Страница 17: ...el down 1 2 3 4 5 6 7 8 9 0 Power on standby Direct select Position down up Volume down up Level down up Digit select Menu open Menu select Sound mute On screen on off TV VIDEO select Picture control Mono bilingual select MENU 0 9 MENU CALL I II TV Set Remote Controller L a d f c b e VIDEO AUDIO R MENU TOSHIBA TOSHIBA CALL 1 4 7 2 5 8 0 3 6 9 MENU 0 3 7 5 6 1 2 4 5 8 9 ...

Страница 18: ...ssing and respectively decreases and in creases the Position number When Channel 12 is found press 8 to select MEMORY Press 5 to complete the presetting PROGRAMMING CHANNEL MEMORY For easy Channel selection the chosen Position should have the same number as Channel stored there For this operation you may use the SEARCH and SKIP functions Example Presetting Channel 12 to Position 12 Channel Preset ...

Страница 19: ...e setting for skipping Position 13 Note When SKIP is ON the Position number is prefixed by Example 13 To confirm this select Position 13 using the 6 and 2 buttons If you want to restore a skipped position number select it using the 6 and 2 buttons then switch the SKIP setting to OFF as in step 2 above Manual fine tuning MFT Press 7 repeatedly to display the D6 screen Press 8 and select MFT Press 5...

Страница 20: ...V 22UF M 3A C421 24666470 ELECTORLYTIC 16V 47UF M 3A C430 24232103 CERAMIC DISC 50V F 0 01UF Z C431 24794471 ELECTROLYTIC 16V 470UF M C432 24232103 CERAMIC DISC 50V F 0 01UF Z C433 24666100 ELECTROLYTIC 10V 10UF M 3A C435 24797479 ELECTROLYTIC 50V 4 7UF M C439 24232103 CERAMIC DISC 50V F 0 01UF Z C440 24082428 PLASTIC FILM 1250VH 9800PF H C442 24082968 PLASTIC FILM 250V 0 36UF J C445 24828563 PLAS...

Страница 21: ...0V B 4700PF K CA52 24212222 CERAMIC DISC 50V B 2200PF K CA53 24212181 CERAMIC DISC 50V B 180PF K CA54 24794330 ELECTROLYTIC 16V 33UF M CA55 24797010 ELECTROLYTIC 50V 1UF M CA68 24794100 ELECTROLYTIC 16V 10UF M CA69 24232103 CERAMIC DISC 50V F 0 01UF Z CA98 24232103 CERAMIC DISC 50V F 0 01UF Z CB01 24794470 ELECTROLYTIC 16V 47UF M CB20 24212101 CERAMIC DISC 50V B 100PF K CB21 24212221 CERAMIC DISC ...

Страница 22: ...815 24366332 CARBON FILM 1 6W 3 3K OHM J R816 24366471 CARBON FILM 1 6W 470 OHM J R817 24366331 CARBON FILM 1 6W 330 OHM J R818 24366561 CARBON FILM 1 6W 560 OHM J R819 24366102 CARBON FILM 1 6W 1K OHM J R820 24338398 OXIDE METAL FILM 1W 0 39 OHM J R821 24381100 OXIDE METAL FILM 1 2W 10 OHM J R823 24366272 CARBON FILM 1 6W 2 7K OHM J R824 24568271 CERAMIC COVERED 7W 270 OHM J R829 24338398 OXIDE M...

Страница 23: ...OHM J RS10 24366471 CARBON FILM 1 6W 470 OHM J RS11 24366223 CARBON FILM 1 6W 22K OHM J RS12 24366472 CARBON FILM 1 6W 4 7K OHM J RS13 24366101 CARBON FILM 1 6W 100 OHM J RS14 24366472 CARBON FILM 1 6W 4 7K OHM J RS15 24366823 CARBON FILM 1 6W 82K OHM J RS16 24366101 CARBON FILM 1 6W 100 OHM J RS17 24366222 CARBON FILM 1 6W 2 2K OHM J RS18 24366823 CARBON FILM 1 6W 82K OHM J RS19 24366101 CARBON F...

Страница 24: ...ANSISTOR KTC3198 Y QS05 23314965 TRANSISTOR KTC3198 Y QS06 23314965 TRANSISTOR KTC3198 Y QV01 23318916 IC MC14053BCP QV08 23314965 TRANSISTOR KTC3198 Y QV10 23314965 TRANSISTOR KTC3198 Y QV11 23314965 TRANSISTOR KTC3198 Y D101 23316411 DIODE ZENER HZT33 12 D111 23357273 DIODE ZENER DZ6 8 BS B D150 23357354 DIODE MA2C858 D221 23357341 DIODE 1SS133 D222 23357341 DIODE 1SS133 D223 23357341 DIODE 1SS1...

Страница 25: ...TCF1138AM Z130 23303230 FILTER 38MHZ MULTI F816KPL Z130 23303199 SAW FILTER ZF01 23303269 FILTER FIL CFILT 6 0MHZ TCF1136AM ZF02 23303267 FILTER FIL CFILT 4 5MHZ TCF1134AM ZF03 23303268 FILTER TCF1135AM ZF04 23303270 FILTER CFILT 6 5MHZ TCF1137AM ZT01 23153736 REMOCON PART CERAMIC RESONATOR TCR1025 PC BOARD ASSEMBLIES U901 23786988 CRT DPC BOARD PD0393 U902 23786989 MAIN BOARD PD0394 PICTURE TUBE ...

Страница 26: ... 26 SPECIFIC INFORMATIONS THIS PAGE IS INTENTIONALLY LEFT BLANK ...

Страница 27: ... D101 R106 C106 RS11 RV18 RV17 DV01 QS04 QS02 RS01 CS01 RS15 RS16 RS17 RS18 QV10 RV11 RV12 RV13 RV09 CV10 CV09 RS10 RS09 RS08 RS07 RS06 CS03 QS05 RS19 RS20 RS21 RS26 CS09 CS13 CS12 QS06 RS22 RS23 RS24 RS25 CS10 CS11 CS14 RS04 RS12 RS13 RS14 CS07 CS06 CS05 CS04 CV01 GJ03 GJ04 R158 L150 R136 C605 C898 L814 L811 C817 G810 R820 R829 C823 D810 C822 D815 D806 G812 D817 D819 C821 R826 R814 R823 R804 R807...

Страница 28: ...SD2253 2SD1556 2SC5143 2SD2553 E C B B C E BCE B CE E C B E C B B C E B C E ON4409 29 30 CRT D BOARD PD0393 BOTTOM FOIL SIDE PLC2147 R902 R 9 6 1 R963 R901 R960 R929 R937 C902 Q901 Q905 P502 R928 Q907 R974 C971 C913 R920 C904 G941 C905 G942 C907 G943 G903 G902 R903 C912 C910 R938 D904 D901 D906 Q908 R904 R905 C931 P501 G904 G905 G906 R931 D905 Q903 R921 R922 R925 R936 R915 R914 R917 R977 R972 E B ...

Страница 29: ... are 1 6W and 5 tolerance carbon resistor unless otherwise noted as the following marks 1 2R Metal or Metal oxide of 1 2 watt 1 2S Carbon compsistion of 1 2 watt 1RF Fuse resistor of 1 watt 10W Cement of 10 watt K 10 G 2 F 1 2 CAPACITOR Unless otherwise noted in schematic all capacitor values less than 1 are expressed in F and the values more than 1 in pF All capacitors are ceramic 50V unless othe...

Страница 30: ...840 AV IN 1 AV IN 2 MEMORY QT01 TEXT REGULATOR RESET µ COM I 2 C BUS R G B HYBRID CONVERTER TRANS B VOLTAGE C Y CHROMA VIDEO DEF VIDEO OUT V OUT H OUT ERROR AMP F B T H V D Y V H CRT AV SW BUS CONTROL BLOCK V L R R MONITOR OUTPUT V L R V L Q610 AUDIO OUT L R HEADPHONE JACK CIRCUIT BLOCK DIAGRAM ...

Страница 31: ...l picture tube measured diagonally 480 0mm Viewable picture tube measured diagonally 90 deflection Dimensions 630 0 W X 465 0 D X 455 5 H mm Mass 18 4kg Supplied accessories Remote controller 1 Batteries size AA R6 2 Telescopic Aerial 1 Aerial Adaptor 1 Color system Video input SYSTEM PAL B G PAL D K PAL I SECAM B G SECAM D K NTSC M NTSC M NTSC 4 43 CHANNEL CCIR VHF 2 12 UHF 21 69 CATV 1 CHINA VHF...

Страница 32: ...TOSHIBA CORPORATION ...

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