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SIGNAL  BOARD  PB0675

BOTTOM  (FOIL)  SIDE

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

GND

Y

9V

C

GND

V

5V

fsc

PV04

PV01

H001

P802

T801

F801

C801

M805A

R801

P803A

CC01

L503

H002

QV01

QA01

Q501

QA02

RC11

DV01

CV02

C431

CC06

C682

CV30

CV36

G316

GC05

P902A

RS30

RC10

RS31

CC05

RV17

R119

CV19

CS13

CS12

RV
1

5

RS10

RS11

R

V03

RV
3

4

R

V33

RS07

CC09

RC14

RS08

RC15

CC10

RC13

CC08

RS06

RC12

RS05

CC07

CV34

RV21

QV02

RV25

RV
2

4

RV
2

6

RC17

CC26

RS02

RC16

CC25

RS04

CS11

CS10

QS03

QS04

RS24

RS23

RS03

RS01

CS15

QS01

QS02

RS20

RS22

RS19

RS21

CS29

RS27

RS14

CS02

CS03

RS15

CV03

RV10

RS18

RS17

CS04

CS05

CV20

R

V11

CS06

RV
1

2

CV22

RV
1

3

CS07

RV
9

1

RV
9

0

RV
0

1

CV40

CV39

CS08

RV
3

2

CV32

CV01

CV33

PZ01A

R118

Q610

C103

GC06

C168

C182

C181

G183

C615

C101

C526

R523

C528

X501

C527

R271

R272

Q271

R273

C525

C524

D525

L525

C503

C664

C321

R228

R229

R230

C223

C222

C221

D221

D222

D223

R444

R443

R445

G202

C319

GJ10

C623

C162

Q220

R220

R221

C502

C501

L502

GJ02

GJ03

GJ04

GJ13

R502

R501

C517

C516

L511

R456

Q453

R455

R233

C233

C201

C406

QV11

RV
2

0

RV
1

8

RV
1

9

D499

C433

C432

L432

D498

C216

R216

GJ31

G431

R403

C404

C403

C401

R434

L430

R402

C224

R511

C512

R330

C225

D224

C226

R218

RA32

RA31

QA12

RA81

RA82

CA74

RA80

RA78

CA73

QA11

CA72

RA79

BB11A

BB12A

RA77

D616

C670

C621

C622

R661

R662

C665

R664

R663

R665

R666

Q608

R669

R668

Q609

C678

C673

C690

R667

C663

D617

D618

D619

CC14

GC04

C691

R611

C683

C681

C677

R677

R676

C676

M602A

M805B

D101

C105

C106

RA18

RA35

RA17

RA16

RA70

RA33

CA33

CA43

CA42

DA

4

2

LA01

CA44

RA08

RA07

RA23

RA22

RA24

RA25

CA25

CA24

CA22

CA23

RA04

D611

Q623

DA

1

1

DA

1

2

DA

6

2

DA

6

1

RA11

RA12

RA61 RA62

CA69

CA68

RA13

XA01

RA87

D620

D621

R623

R624

C624

D615

C522

C521

C523

R331

R316

R450

R454

C482

Q452

R453

RA14
RA64
RA65
RA15

RB26

CA34

RA26

RA27

RA34

RB22

QA10

RA74

RA75

CA70

CA71

RA76

C451

R459

Q451

R451

R452

Q422

Q423

R439

R427

R426

R423

R442

Q424

G616

Q612

D612

C612

R612

D610

C610

R610

G620

Q830

Q420

Z424

R830

RA37

RA38

CA38
CA37

RA68

RA67

RB42

RB41

RB40

RB46

RB45

QB40

R425

D420

D421

R477

CC24

D477

C421

C420

C831

D830

G300

CC23

R831

RB44

RB47

RB43

DA31

DA

3

2

202

R525

R301

GA60

C693

PV03

C661 C662

R478

RV31

L101

L102

P661

R643

GL03

CC21

CC22

P601

CC13

R644

CC12

GL02

GL01

PT01A

QN02

QN01

QN03

QN04

CN18

CN08

CN15

CN19

CN02

CN16

CN10

CN09

CN01

RN11

RN16

CN17

RN21

RN25

RN24

RN32

CN12

CN13

RN01

RN14

RN15

RN31

RN23

RN20

RN19

RN13

RN12

RN02

CN07

RN07

RN03

RN06

RN04

RN05

CN03

GJ09

GJ08

C104

C102

G101

GJ07

GJ06

RA69

GJ05

GJ01

P602

G611

G612

G613

RA66

Q319

Q317

Q318

R319

R317

R318

RA41

RA42

RA40

DA

1

3

RA39

C684

Q611

D606

C620

C654

C655

R654

R655

R650

R651

R653

R652

Q606

R670

R673

Q607

C679

C653

C680

D607

D608

D609

CC15

GC03

C692

R613

C686

C685

C675

R675

R674

C674

C651

C652

C316

R458

C430

C360

C452

R457

D

A23

DA

2

2

DA24

R522

R521

R520

D319

D318

D317

RN33

RN34

D631

Q631

R631

R632

R633

C631

C484

R

V35

GJ60

GC02

CC04

GJ61

GC07

GC08

G103

G104

C190

RA29

RA28

CA29

CA28

G614

G615

G102

CC18

C109

C110

G105

C108

R201

R102

C107

CC19

G117

PG01A

G106

G107

C340

RN10

D613

R222

C271

R234

PG02A

GJ11

T4A L/250V

1

2

CAUTION LIVE AREA

BLU

BRN

3

4

5

1

5

10

15

20

25

30

36

1

5

12

5

10

25

27

52

45

1

4

5

8

1

10

15

20

28

29

40

50

56

60

61

62

63

64

B

E

B

E

B

E

B

E

E

B

B

B

E

E

B

E

B

E

B

E

B

E

B

E

PB9500

23537586

1

16

1

16

15

16

17

18

19

20

21

22

B

E

B

E

6

7

8

9

E

B

E

E

10

11

12

13

E

1

4

5

8

1

16

K

A

8

9

18

1

5

10

15

20

25

5

B

E

B

E

45

35

25

27

E

B

C

E

BE

B

E

B

B

E

10

E

B

1

5

10

12

E

B

B

E

30

35

50

20

15

1

B

E

B

E

E

B

B

B

E

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

D-COM

A-PRO

TEXT

IF

NC

+32V

NC

+5V

+9V

SD
A

SCL

ADR

VT

AG

C

3

4

5

6

13 14 15 16 17 18 19 20

5

5

9

13

15

1

5

9

13

15

C687

C688

R687

R688

DV10

Summary of Contents for 21AZ5VX

Page 1: ...Dec 2003 FILE NO 040 200217 SERVICE MANUAL COLOUR TELEVISION S0ES Chassis 21AZ5VX ...

Page 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 29 TERMINAL VIEW OF TRANSISTORS 35 CIRCUIT BLOCK DIAGRAM 38 SPECIFICATIONS END APPENDIX CIRCUIT DIAGRAM ...

Page 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...

Page 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 COLOR 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 ...

Page 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...

Page 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...

Page 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...

Page 8: ...ated color of mode now selected Green and Red Indicated color of other modes White Green Normal Red The microcomputer operates to provide judgement of no video signal The red color 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...

Page 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...

Page 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...

Page 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 colors which did not light in the above step with CHANNEL s t buttons Then tap VOL UME buttons so that three colors slightly light in the same level X To correct white balance in light area select GDRV and BDRV with CHANN...

Page 12: ...s by eye check SPEC 4 1 5 bars Note This ITEM Adjust at last 3 SUB COLOUR CENTER COLP Measuring point Q501 22 B OUT Adjusting signal Sub Bright PAL signal Adjusting method 1 Set user control to the standard 1 2 Change COLP data COLC Difference data to adjust the 6th peak amplitude of rainbow color bar Adjust the amplitude of color bar p p value of the upper half 1 4 0 2V p p Note This ITEM Adjust ...

Page 13: ...H 3 Set the mode to the one horizontal line mode 4 Change SCREEN VR to set it so that one of the line R G and B will light slightly 5 Change CUT OFF data to set it so that each one of R G and B will light slightly 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 bright area and dark area Bright area High light area 103cd m2 Dark ar...

Page 14: ...not use French SECAM Measuring place On Picture Setting Contrast Max Bright Center Color 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 12 VERTICAL HEIGHT Input signal WG Philip Pattern Do not use French SECAM Measuring pla...

Page 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...

Page 16: ... data RCUT GCUT BCUT GDRV BDRV BRTC COLC TNTC COLP COLS SCNT HPOS VPOS HIT VLIN WID PARA CNR TRAP SRY SBY R CUTOFF B W G CUTOFF B W B CUTOFF B W G DRIVE B DRIVE SUB BRIGHT CEN SUB COLOR CEN NTSC SUB TINT CEN SUB COLOR CEN PAL SUB COLOR CEN SECAM SUB CONTRAST 50Hz H POSITION V POSITION HEIGHT V LINEARITY PICTURE WIDTH E W PARABOLA E W CORNER TRAPEZIUM SECAM R Y SECAM B Y 20H 20H 20H 40H 40H 40H 40H...

Page 17: ...Level down in each function t s Menu select o Sound Mute f Power on standby Volume down up Channel select Position down up a TV VIDEO select h Picture control 8 Sound control Level up in each function Video Input 2 Audio Input 2 Infrared Receiving Window Power Indicator Power Switch Channel Up Channel Down Volume Up Volume Down TV Video MENU Remote Head Phone Jack Digit select ...

Page 18: ...matically When programming is complete the initial position number will reappear After presetting Check the preset channels by pressing the position down up buttons If the picture or sound of a certain channel is not good fine tune the channel using the MFT function If the colour of a certain channel is abnormal automatic colour system selection AUTO may malfunction or sound system selection is wr...

Page 19: ... Press the MENU button repeatedly to call up the SET UP menu on the screen Press the t s buttons to move the cursor S to AFT Press the buttons to select the ON indication Note When position is set to AFT OFF status the R mark appears to the left of the position number When the channel is set to AFT ON status the posi tion number is displayed without the R mark 1 2 3 4 1 2 3 After presetting the ch...

Page 20: ...50V F 0 01UF Z C433 24666100 ELECTROLYTIC 10V 10UF M 3A C436 24665102 ELECTROLYTIC 10V 1000UF M 3A C439 24232103 CERAMIC DISC 50V F 0 01UF Z C440 24082934 PLASTIC FILM 1500VH 1500PF H C441 24693472 PLASTIC FILM 100V 4700PF J C442 24082995 PLASTIC FILM 250V 0 36 UF J C443 24667102 ELECTROLYTIC 25V 1000UF M 3A C444 24082963 PLASTIC FILM 1500VH 9100PF H C445 24828563 PLASTIC FILM 200V 56000PF J C447 ...

Page 21: ... M C842 24794100 ELECTROLYTIC 16V 10UF M C843 24590104 PLASTIC FILM 50V 0 1UF J C846 24538224 PLASTIC FILM 50V 0 22UF J C883 24538474 PLASTIC FILM 50V 0 47UF J C884 24086916 ELECTROLYTIC 160V 330UF M 3D C885 24214471 CERAMIC DISC 500V B 470PF K C887 24214471 CERAMIC DISC 500V B 470PF K C889 24668222 ELECTROLYTIC 35V 2200UF M 3A C893 24092337 CERAMIC DISC 2KV 220PF K C895 24676470 ELECTROLYTIC 100V...

Page 22: ...LM 1 6W 820K OHM J R308 24366471 CARBON FILM 1 6W 470 OHM J R312 24552272 OXIDE METAL FILM 1 2W 2 7K OHM J R314 24366105 CARBON FILM 1 6W 1M OHM J R315 24366824 CARBON FILM 1 6W 820K OHM J R316 24366154 CARBON FILM 1 6W 150K OHM J R327 24321109 OXIDE METAL FILM 1 2W 1 OHM J R328 24988033 METAL FILM 1W 1 5 OHM J R330 24366471 CARBON FILM 1 6W 470 OHM J R331 24366104 CARBON FILM 1 6W 100K OHM J R333...

Page 23: ...819 24988018 METAL FILM 1 2W 3 9 OHM J R820 24366101 CARBON FILM 1 6W 100 OHM J R822 24552103 OXIDE METAL FILM 1 2W 10K OHM J R823 24552392 OXIDE METAL FILM 1 2W 3 9K OHM J R824 24569689 CERAMIC COVERED 10W 6 8 OHM J R827 24366472 CARBON FILM 1 6W 4 7K OHM J R828 24366222 CARBON FILM 1 6W 2 2K OHM J R829 24321399 OXIDE METAL FILM 1 2W 3 9 OHM J R830 24322229 OXIDE METAL FILM 1W 2 2 OHM J R831 2436...

Page 24: ...66102 CARBON FILM 1 6W 1K OHM J RN24 24366822 CARBON FILM 1 6W 8 2K OHM J RN25 24366101 CARBON FILM 1 6W 100 OHM J RN31 24366333 CARBON FILM 1 6W 33K OHM J RN32 24366333 CARBON FILM 1 6W 33K OHM J RN33 24366332 CARBON FILM 1 6W 3 3K OHM J RN34 24366332 CARBON FILM 1 6W 3 3K OHM J RS01 24366103 CARBON FILM 1 6W 10K OHM J RS02 24366104 CARBON FILM 1 6W 100K OHM J RS03 24366103 CARBON FILM 1 6W 10K O...

Page 25: ...23 TRANSISTOR 2SC2878 A TEM Q610 23906582 IC AN5277 Q610C 70391355 SCREW BIND HEAD TAP TITE B BITTB 3X8 SZN Q612 23314962 TRANSISTOR KTA1266 Y Q623 23114478 TRANSISTOR RN2004 Q706 23314965 TRANSISTOR KTC3198 Y Q707 23114437 TRANSISTOR 2SC752GTM Y Q709 23314965 TRANSISTOR KTC3198 Y Q710 23314962 TRANSISTOR KTA1266 Y Q711 23314909 TRANSISTOR 2SA1837 Q712 23314912 TRANSISTOR 2SC4793 Q719 23314965 TRA...

Page 26: ...C G117 24232103 CERAMIC DISC 50V F 0 01UF Z G202 23238714 COIL PEAKING TRF4100AJ G402 23103894 FILTER FERRITE BEAD TEM2011AW G472 24531680 FUSIBLE 1 2W 68 OHM J G616 24366103 CARBON FILM 1 6W 10K OHM J G620 24794101 ELECTROLYTIC 16V 100UF M G714 24545220 FUSIBLE 1 4W 22 OHM J G805 23248234 COIL CHOKE TLN3481AC G806 23248234 COIL CHOKE TLN3481AC G810 23103894 FILTER FERRITE BEAD TEM2011AW G828 2310...

Page 27: ...X Y120 23943846 BAG POLY Y125 23142083 ADAPTOR Y126 23124081 ANTENNA ROD TT ANT07 TB CABINET PARTS A201 23530276 COVER FRONT COVER 21AZ5VX TSP2001112911 A265 23445415 BUTTON POWER BUTTON 21D7 C005001E A270 23445416 BUTTON CONTROL BUTTON 21D7 C005002E A272 23428093 DOOR DOOR PROPER 21AZ5VX TSP2002010401 A283 23451204 PUSH CATCH A401 23540203 COVER BACK COVER PROPER 21D7XHV Z005008E A510 23030988 SC...

Page 28: ... 28 SPECIFIC INFORMATIONS THIS PAGE IS INTENTIONALLY LEFT BLANK ...

Page 29: ...54 C482 Q452 R453 RA14 RA64 RA65 RA15 RB26 CA34 RA26 RA27 RA34 RB22 QA10 RA74 RA75 CA70 CA71 RA76 C451 R459 Q451 R451 R452 Q422 Q423 R439 R427 R426 R423 R442 Q424 G616 Q612 D612 C612 R612 D610 C610 R610 G620 Q830 Q420 Z424 R830 RA37 RA38 CA38 CA37 RA68 RA67 RB42 RB41 RB40 RB46 RB45 QB40 R425 D420 D421 R477 CC24 D477 C421 C420 C831 D830 G300 CC23 R831 RB44 RB47 RB43 DA31 DA32 202 R525 R301 GA60 C69...

Page 30: ...3 R327 TP82 R308 R305 R463 C318 R466 R101 R315 D306 R314 C304 Q340 R344 C341 R342 R343 R217 R228 G472 R471 R827 D811 D828 R820 C833 C846 R846 P704B 055 Z889 D885 L886 C885 D896 L896 C887 C889 C895 L889 G814 G817 R889 G894 DB30 R341 R349 C342 R842 C470 C847 C883 G865 D340 QB30 RB30 R847 QB02 RB02 RB11 RB12 RB01 CB01 RB09 RA71 R432 D443 D478 C439 Q431 R436 R437 R435 D431 TP81 C898 G806 G805 C448 R80...

Page 31: ... R719 D720 Q905 Q901 Q903 P903A B C E KG G2 KR G1 H H KB E B C B E C B E B E B C E E B B E E B B E B E 26 09 P905 R905 C911 Q907 E C B R977 R925 D903 R904 R934 D910 R909 L903 R943 14 C9 05 C9 R924 R922 R946 D908 R935 Q904 R919 D905 B C E L905 D907 R917 R915 04 C9 R918 R916 D904 Q902 R912 R921 R914 R928 R945 D906 B C E E C B Q906 R929 R930 R937 C907 R926 GL08 P902B C913 R932 C C Q908 E C B D901 C91...

Page 32: ...01 CZ02 CZ07 LZ03 CZ11 LZ04 LZ01 CZ01 CZ13 CZ14 CZ04 CZ08 CZ12 CZ09 CZ10 RZ05 QZ04 RZ07 RZ08 RZ09 QZ03 RZ03 RZ04 RZ01 RZ02 QZ02 CZ03 CZ06 CZ05 LZ02 CZ15 CZ LZ05 LZ LZ07 7 5 4 3 8 6 1 1 8 9 16 B E B E E C MCL 437F CZ20 RZ GZ01 CZ21 CZ18 CZ17 10 16 06 ...

Page 33: ...763A 2SC1569 2SC4544 2SA1788 2SA1306 2SA1186A 2SC752GTM 2SC2482 2SC2655 2SC4721P 2SC752 2SA562TM 2SA1015 2SC1815 2SC2878 2SC1740S 2SC2120 2SA9335 2SA1788 RN2203 RN2201 RN2004 RN1203 RN1204 RN2204 RN1205 RN1202 RN1201 2SD1554 2SD2253 2SD1556 2SC5143 2SD2553 E C B B C E B CE B CE E C B E C B B C E B C E ON4409 ...

Page 34: ... 36 GENERAL ADJUSTMENTS SPECIFIC INFORMATIONS THIS PAGE IS INTENTIONALLY LEFT BLANK ...

Page 35: ...e 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 otherwi...

Page 36: ...905 Q610 Q840 L R VIDEO L R AV IN 1 AV IN 2 MEMORY QZ01 DIG COMB 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 AUDIO OUT L R AV SW BUS CONTROL BLOCK SV V L R R MONITOR OUTPUT V L R V L CHASSIS BLOCK DIAGRAM HEADPHONE JACK ...

Page 37: ...Hz 125 W Approx Width 654 mm Height 462 mm Depth 471 mm 26 kg TYPE 21 54 cm Overall picture tube measured diagonally 51 cm Viewable picture tube measured diagonally 90 deflection Colour system Sound system 4 43NTSC 5 5 6 0 6 5 MHz PAL 60Hz 5 5 6 0 6 5 MHz PAL SECAM NTSC4 43 NTSC3 58 60 Hz PAL 50 Hz 3 58NTSC 5 W 2 10 THD 120 60 mm 2 pcs Remote Controller 1 Battery R6 AA 2 VHF 2 12 1 12 2 12 1 12 2 ...

Page 38: ...TOSHIBA CORPORATION ...

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