JVC AV-21U4 Service Manual Download Page 43

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(No.YA252)3-7

C720

NCB31HK-102X

C CAPACITOR

1000pF 50V K

C721

QETN1CM-476Z

E CAPACITOR

47uF 16V M

C723

NCB21CK-105X

C CAPACITOR

1uF 16V K

C726

QETN1HM-106Z

E CAPACITOR

10uF 50V M

C727

NCB31HK-332X

C CAPACITOR

3300pF 50V K

C728

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C729

QETN1HM-225Z

E CAPACITOR

2.2uF 50V M

C730

QETN1HM-106Z

E CAPACITOR

10uF 50V M

C731

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C732

QETN1HM-225Z

E CAPACITOR

2.2uF 50V M

C733

QETN1HM-106Z

E CAPACITOR

10uF 50V M

C734

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C735

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C736

NCB31HK-103X

C CAPACITOR

0.01uF 50V K

C737

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C738

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C739

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C740

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C741

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C742

QETN1HM-106Z

E CAPACITOR

10uF 50V M

C745

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C746

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C747

QETN1HM-106Z

E CAPACITOR

10uF 50V M

C748

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C749

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C750

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C751

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C752

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C753

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C754

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C755

QETN1HM-106Z

E CAPACITOR

10uF 50V M

C756

NCB31HK-104X

C CAPACITOR

0.1uF 50V K

C757

NDC31HJ-561X

C CAPACITOR

560pF 50V J

C758

NCB31CK-224X

C CAPACITOR

0.22uF 16V K

C759

QETN1CM-107Z

E CAPACITOR

100uF 16V M

C760

NCB31CK-224X

C CAPACITOR

0.22uF 16V K

C761

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C762

QETN1CM-107Z

E CAPACITOR

100uF 16V M

C763

NCB31CK-224X

C CAPACITOR

0.22uF 16V K

C764

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C765

QETN1CM-107Z

E CAPACITOR

100uF 16V M

C766

NCB31CK-224X

C CAPACITOR

0.22uF 16V K

C767

NCB31CK-224X

C CAPACITOR

0.22uF 16V K

C768

NCB31CK-224X

C CAPACITOR

0.22uF 16V K

C769

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C770

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C771

QETN1HM-226Z

E CAPACITOR

22uF 50V M

C772

NCB31CK-224X

C CAPACITOR

0.22uF 16V K

C773

QETN1HM-225Z

E CAPACITOR

2.2uF 50V M

C774

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C775

NCB31CK-224X

C CAPACITOR

0.22uF 16V K

C776

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C777

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C778

QETN1CM-476Z

E CAPACITOR

47uF 16V M

C779

QETN1HM-106Z

E CAPACITOR

10uF 50V M

C780

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C781

NCB21CK-105X

C CAPACITOR

1uF 16V K

C782

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C789

QETN1HM-476Z

E CAPACITOR

47uF 50V M

C792

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C802

QETN1HM-106Z

E CAPACITOR

10uF 50V M

C804

QETN1CM-477Z

E CAPACITOR

470uF 16V M

C806

QETN1CM-107Z

E CAPACITOR

100uF 16V M

C807

NCB31CK-104X

C CAPACITOR

0.1uF 16V K



C901

QFZ9072-224

MM CAPACITOR

0.22uF AC250V K



C902

QFZ9077-104

MPP CAPACITOR

0.1uF 250V M



C903

QCZ9015-102Z

C CAPACITOR

1000pF AC250V Z



C904

QCZ9015-102Z

C CAPACITOR

1000pF AC250V Z



C905

QCZ9015-102Z

C CAPACITOR

1000pF AC250V Z

C906

QEZ0633-127

E CAPACITOR

120uF 450V M

C922

QFLC1HJ-104Z

M CAPACITOR

0.1uF 50V J

C924

QETN1HM-475Z

E CAPACITOR

4.7uF 50V M

C925

QETN1HM-226Z

E CAPACITOR

22uF 50V M

C926

QFLC1HJ-822Z

M CAPACITOR

8200pF 50V J

C928

NCB31HK-221X

C CAPACITOR

220pF 50V K

C929

QFKA2JK-103

MM CAPACITOR

0.01uF 630V K

C931

QCZ0364-681

C CAPACITOR

680pF 2kV K

C940

QCZ0364-561

C CAPACITOR

560pF 2kV K

C949

QETN1AM-108Z

E CAPACITOR

1000uF 10V M

C951

QCZ0364-122

C CAPACITOR

1200pF 2kV K

C952

QCB32HK-222Z

C CAPACITOR

2200pF 500V K

C953

QCB32HK-222Z

C CAPACITOR

2200pF 500V K

C955

QCB32HK-222Z

C CAPACITOR

2200pF 500V K

C956

QEZ0203-107

E CAPACITOR

100uF 160V M

C957

QETN1CM-108Z

E CAPACITOR

1000uF 16V M

C958

QETN1VM-337Z

E CAPACITOR

330uF 35V M

C960

QETM1VM-228

E CAPACITOR

2200uF 35V M



Ref No.

Part No.

Part Name

Description Local

C962

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C963

NCB31HK-102X

C CAPACITOR

1000pF 50V K

C964

QETN1VM-107Z

E CAPACITOR

100uF 35V M

C965

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C967

QETN1CM-476Z

E CAPACITOR

47uF 16V M

C968

QETN1CM-476Z

E CAPACITOR

47uF 16V M

C975

QETN1CM-477Z

E CAPACITOR

470uF 16V M

C976

NCB31HK-472X

C CAPACITOR

4700pF 50V K

C977

QETN1CM-476Z

E CAPACITOR

47uF 16V M

C978

QETN1CM-476Z

E CAPACITOR

47uF 16V M

C979

QETN1EM-107Z

E CAPACITOR

100uF 25V M

C980

QETN1CM-107Z

E CAPACITOR

100uF 16V M

C981

QETN1CM-107Z

E CAPACITOR

100uF 16V M

C982

QETN1HM-475Z

E CAPACITOR

4.7uF 50V M

C983

QETN1CM-106Z

E CAPACITOR

10uF 16V M

C984

QETN1EM-476Z

E CAPACITOR

47uF 25V M

C985

QETN1CM-476Z

E CAPACITOR

47uF 16V M

C986

NCB31CK-104X

C CAPACITOR

0.1uF 16V K

C987

QETN1HM-226Z

E CAPACITOR

22uF 50V M

C988

QETN1CM-476Z

E CAPACITOR

47uF 16V M

C989

NCB31CK-104X

C CAPACITOR

0.1uF 16V K



C991

QCZ9079-102

C CAPACITOR

1000pF AC250V M



C992

QCZ9079-102

C CAPACITOR

1000pF AC250V M



C993

QCZ9079-102

C CAPACITOR

1000pF AC250V M

R001

NRSA63J-221X

MG RESISTOR

220

Ω

1/16W J

R002

NRSA63J-221X

MG RESISTOR

220

Ω

1/16W J

R003

NRSA63J-392X

MG RESISTOR

3.9k

Ω

1/16W J

R004

NRSA63J-273X

MG RESISTOR

27k

Ω

1/16W J

R005

NRSA63J-750X

MG RESISTOR

Ω

1/16W J

R101

NRSA63J-100X

MG RESISTOR

Ω

1/16W J

R102

NRSA63J-682X

MG RESISTOR

6.8k

Ω

1/16W J

R103

NRSA63J-272X

MG RESISTOR

2.7k

Ω

1/16W J

R104

NRSA63J-181X

MG RESISTOR

180

Ω

1/16W J

R105

NRSA63J-100X

MG RESISTOR

Ω

1/16W J

R106

NRSA63J-101X

MG RESISTOR

100

Ω

1/16W J

R315

NRSA63J-0R0X

MG RESISTOR

Ω

1/16W J

R316

NRSA63J-0R0X

MG RESISTOR

Ω

1/16W J

R317

NRSA63J-0R0X

MG RESISTOR

Ω

1/16W J

R322

NRSA63J-122X

MG RESISTOR

1.2k

Ω

1/16W J

R323

NRSA63J-0R0X

MG RESISTOR

Ω

1/16W J

R341

NRSA63J-0R0X

MG RESISTOR

Ω

1/16W J

R343

NRSA63J-0R0X

MG RESISTOR

Ω

1/16W J

R344

NRSA63J-0R0X

MG RESISTOR

Ω

1/16W J

R345

NRSA63J-0R0X

MG RESISTOR

Ω

1/16W J

R402

NRSA63J-103X

MG RESISTOR

10k

Ω

1/16W J

R403

NRSA63J-0R0X

MG RESISTOR

Ω

1/16W J

R404

NRSA63J-0R0X

MG RESISTOR

Ω

1/16W J

R405

NRSA63J-332X

MG RESISTOR

3.3k

Ω

1/16W J

R411

NRSA63J-472X

MG RESISTOR

4.7k

Ω

1/16W J

R412

NRSA63J-472X

MG RESISTOR

4.7k

Ω

1/16W J

R421

QRL029J-102

OMF RESISTOR

Ω

2W J

R423

NRSA63J-123X

MG RESISTOR

12k

Ω

1/16W J

R424

NRSA63J-153X

MG RESISTOR

15k

Ω

1/16W J

R425

NRSA63J-153X

MG RESISTOR

15k

Ω

1/16W J

R432

QRE121J-4R7Y

C RESISTOR

4.7

Ω

1/2W J

R433

QRE121J-4R7Y

C RESISTOR

4.7

Ω

1/2W J

R434

NRSA63J-682X

MG RESISTOR

6.8k

Ω

1/16W J

R440

QRE121J-471Y

C RESISTOR

470

Ω

1/2W J

R448

QRE121J-1R0Y

C RESISTOR

Ω

1/2W J

R471

NRSA63J-105X

MG RESISTOR

Ω

1/16W J

R472

NRSA63J-823X

MG RESISTOR

82k

Ω

1/16W J

R473

NRSA63J-683X

MG RESISTOR

68k

Ω

1/16W J

R474

NRSA63J-224X

MG RESISTOR

220k

Ω

1/16W J

R520

NRSA63J-101X

MG RESISTOR

100

Ω

1/16W J

R521

NRSA63J-102X

MG RESISTOR

Ω

1/16W J

R522

QRE121J-560Y

C RESISTOR

Ω

1/2W J

R523

QRE121J-271Y

C RESISTOR

270

Ω

1/2W J

R524

QRL039J-560

OMF RESISTOR

Ω

3W J

R529

QRL039J-221

OMF RESISTOR

220

Ω

3W J



R530

QRZ9017-4R7

FUSI RESISTOR

4.7

Ω

1/4W J



R533

QRZ9017-4R7

FUSI RESISTOR

4.7

Ω

1/4W J

R551

QRX029J-R47

MF RESISTOR

0.47

Ω

2W J

R554

NRSA63J-182X

MG RESISTOR

1.8k

Ω

1/16W J

R570

QRT029J-1R5

MF RESISTOR

1.5

Ω

2W J

R571

QRT029J-1R5

MF RESISTOR

1.5

Ω

2W J

R572

QRE121J-222Y

C RESISTOR

2.2k

Ω

1/2W J

R574

QRE121J-223Y

C RESISTOR

22k

Ω

1/2W J

R575

NRSA63J-392X

MG RESISTOR

3.9k

Ω

1/16W J

R576

NRSA63J-103X

MG RESISTOR

10k

Ω

1/16W J

R581

QRE121J-182Y

C RESISTOR

1.8k

Ω

1/2W J

R582

NRSA63J-273X

MG RESISTOR

27k

Ω

1/16W J

R583

NRSA63J-393X

MG RESISTOR

39k

Ω

1/16W J

R585

NRSA63J-0R0X

MG RESISTOR

Ω

1/16W J

R602

NRSA63J-223X

MG RESISTOR

22k

Ω

1/16W J

R603

NRSA63J-0R0X

MG RESISTOR

Ω

1/16W J

R604

NRSA63J-103X

MG RESISTOR

10k

Ω

1/16W J



Ref No.

Part No.

Part Name

Description Local

Summary of Contents for AV-21U4

Page 1: ...ctor Company of Japan Limited No YA252 2005 3 COLOUR TELEVISION YA252 2005 3 AV 21U4 SK TABLE OF CONTENTS 1 PRECAUTION 1 3 2 SPECIFIC SERVICE INSTRUCTIONS 1 4 3 DISASSEMBLY 1 6 4 ADJUSTMENT 1 12 5 TROUBLESHOOTING 1 25 BASIC CHASSIS CW ...

Page 2: ...Hz PAL 4 40MHz 4 25MHz SECAM 3 58MHz 4 43MHz NTSC Aerial Input Terminal 75Ω unbalanced coaxial Power Input AC110V AC240V 50Hz 60Hz Power Consumption 81W Max 57W Avg Picture Tube A51KQK99X01 21 inch aspect ratio 4 3 convetional square face type tinted Screen Size Visible size 50 5cm Diagonal 40 4cm 30 3cm H V High Voltage 26 5kV 1 5kV at zero beam current Speaker 5cm 9cm Oval type 2 Audio Output 3W...

Page 3: ...ments or alternatives approved by the manufacturer of the complete product 7 Do not check high voltage by drawing an arc Use a high voltage meter or a high voltage probe with a VTVM Discharge the picture tube before attempting meter connection by connecting a clip lead to the ground frame and connecting the other end of the lead through a 10kΩ 2W resistor to the anode button 8 When service is requ...

Page 4: ... AUTO PROGRAM the TV stations can be selected automatically and the TV channels can also be rearranged automatically Built in OFF TIMER RETURN 2 2 FUNCTIONS REMOTE CONTROL UNIT RM C1261 2H 1 4 5 3 2 6 7 8 9 11 10 1 2 3 4 5 6 7 8 9 10 SOUND SYSTEM key COLOUR SYSTEM key FAVORITE CHANNEL keys DISPLAY BACK key PICTURE MODE key OFF TIMER key RETURN key TV VIDEO key Not used PICTURE BOOSTER key MENU key...

Page 5: ...I Audio R2 input right signal 58 Y3 Cvbs I S Video Y1 input 59 C1 I S Video C1 input 60 AudioLsL O Audio L output for audio power amplifier 61 AudioLsR O Audio R output for audio power amplifier 62 HP L O Headphone L 63 HP R O Headphone R 64 CVBSO PIP O CVBS PIP output 65 SVM O Scan velocity modulation output 66 FbiSo I Flyback input sandcastle output 67 Hout O Horizontal output 68 VssComb GND 69 ...

Page 6: ...HE SPEAKER Remove the REAR COVER 1 Remove the 2 screws C as shown in Fig 1 3 1 4 CHECKING THE MAIN PW BOARD To check the back side of the MAIN PWB 1 Pull out the MAIN PWB Refer to REMOVING THE MAIN PW BOARD 2 Erect the MAIN PWB vertically so that you can easily check its back side CAUTIONS Before turning on power make sure that the CRT earth wire and other connectors are properly connected When re...

Page 7: ... No YA252 1 7 Fig 1 MAIN PWB SPEAKER C REAR COVER A B CRT SOCKET PWB FRONT CABINET PICTURE TUBE FBT x2 x5 x2 ...

Page 8: ... whether the setting values of the SYSTEM CONSTANT SET are the same as those indicated in Table 1 If the value is different select the setting item with the MENU key and set the correct value with the MENU key 4 Press the DISPLAY key twice to return to the normal screen 5 Receive channel setting Refer to the OPERATING INSTRUCTIONS and set the receive channels channels preset 6 User setting Check t...

Page 9: ...CK MUTE COLOUR AUTO ECO SENSOR SURROUND PICTURE BOOSTER COMPONENT PIP S INPUT TRIPLE NO NO NO MONO NO NO NO NO NO NO NO NO Setting item Setting content Setting value YES NO YES NO YES NO YES NO YES NO YES NO YES NO STEREO PB MONO YES NO YES NO YES NO YES NO YES NO SINGLE NO PAT MULTI TRIPLE PAL THAI E R C M I E C E R C M I NO LANGUAGE NO ...

Page 10: ...ORITE CH RED PR01 FAVORITE CH GREEN PR02 FAVORITE CH YELLOW PR03 FAVORITE CH BLUE PR04 Setting item Setting value 1 IF 1 VCO 2 DELAY POINT 2 V C 1 SCREEN DATA 2 CUTOFF B G 3 WDR R G B 4 BRIGHT TV VDO 1 2 5 CONT TV VDO 1 2 6 COLOUR TV VDO1 2 7 TINT TV VDO 1 2 8 SHARP Do not adjust 9 Y DELAY Do not adjust 10 TINT DVD Do not adjust 11 AMP T SHARP 3 AUDIO Do not adjust 1 DCXO ADJ 2 NICAM lower ERRLIM ...

Page 11: ...the tweezers and remove the chip part Transistors diodes variable resistors etc 1 Apply extra solder to each lead 2 As shown in the figure push the part with tweezers and alternately melt the solder at each lead Shift and remove the chip part NOTE After removing the part remove remaining solder from the pattern 2 How to install Chip parts Resistors capacitors etc 1 Apply solder to the pattern as i...

Page 12: ...mer capacitors etc 4 2 PRESETTING BEFORE ADJUSTMENT Unless otherwise specified in the adjustment instructions preset the following functions with the remote control unit User mode setting position 4 3 MEASURING INSTRUMENT AND FIXTURES 1 DC voltmeter or Digital voltmeter 2 Oscilloscope 3 Signal generator Pattern generator PAL SECAM NTSC 4 Remote control unit 4 4 ADJUSTMENT ITEMS B1 VOLTAGE FOCUS AD...

Page 13: ...AY2 4 X RAY1 5 GND UPPER FOCUS DEF YOKE IC702 MAIN PWB ASS Y CRT SOCKET T 6 1 4 1 FRONT HVT MAIN PWB ASS Y 1 6 1 4 1 1 4 5 X 1 6 C U LOWER SCREEN TU001 S901 S805 S803 S801 S804 S802 J807 J806 J801 J802 IC701 CN00S T PW DEG POWER CORD TP E E1 TP 47B POWER SW TP 47R CN00C 1 5V 2 SCL0 3 SDA0 4 SCL1 5 SDA1 6 GND I2 C GND 5V GND B1 ...

Page 14: ...entering adjusting the setting values adjustment values of the IF circuit 2 V C For entering adjusting the setting values adjustment values of the VIDEO circuit 3 AUDIO For entering adjusting the setting values adjustment values of the AUDIO circuit 4 DEF For entering adjusting the setting values adjustment values of the DEFLECTION circuit 5 VSM W B For setting the values of STANDARD SOFT BRIGHT a...

Page 15: ...VD 11 AMP T SHARP 3 AUDIO PAL 1 SCREEN HBC WBC BRI V C 000A 0002 0009 5 VSM W B 1 BRIGHT VSM PRESET BRIGHT 4 DEF 1 V SHIFT DEF FULL 50Hz 1 BRIGHT 2 CONT 3 COLOUR 4 SHARP 5 HUE 1 R DRIVE 2 G DRIVE 3 B DRIVE Setting item 1 V SHIFT 2 V SLOPE 3 V SIZE 4 H CENT 5 H SIZE 6 TRAPEZ 7 EW PIN 8 COR UP 9 COR LO 10 ANGLE 11 BOW 12 V S CR 13 V LIN 14 V ZOOM 15 V SCROLL Setting item 1 IF 3 AUDIO 5 VSM W B 7 PLU...

Page 16: ...3 Make sure that the picture is in focus even when the screen gets darkened Item Measuring instrument Test point Adjustment part Description IF VCO check Remote control unit 1 IF 1 VCO CW Note Under normal conditions no adjustment is required 1 Receive a broadcast signal 2 Select 1 IF from the SERVICE MENU 3 Select 1 VCO 4 Check the characters colour of the JUST REFERENCE displayed to yellow 5 Pre...

Page 17: ...fixed offset values needing no further adjustment Adjustment item Variable range Initial setting value PAL SECAM NTSC3 58 NTSC4 43 1 SCREEN BRI 0 63 32 32 32 32 2 CUTOFF B 0 63 11 11 11 11 G 0 63 7 7 7 7 3 WDR R 0 63 32 32 32 32 G 0 63 32 32 32 32 B 0 63 45 45 45 45 4 BRIGHT RF 0 63 39 39 VIDEO 1 32 31 4 4 4 4 VIDEO 2 32 31 4 4 4 4 5 CONT RF 0 63 32 32 VIDEO 32 31 2 2 2 2 6 COLOUR RF 0 63 32 31 42...

Page 18: ...ess the DISPLAY key twice to return to the normal screen WHITE BALANCE High light adjustment Signal generator Remote control unit 2 V C 3 WDR R 3 WDR G 3 WDR B Notes Proceed to the following adjustment after having completed the WHITE BALANCE Low light adjustment Set PICTURE MODE VSM to BRIGHT 1 Receive a PAL black and white signal colour off 2 Select 2 V C from the SERVICE MENU 3 Select 3 WDR R G...

Page 19: ...ast 6 Press the DISPLAY key twice to return to the normal screen SUB COLOUR 1 adjustment Remote control unit 2 V C 6 COLOUR Method of adjustment without measuring instrument Notes Proceed to the following adjustment after having completed the SUB CONTRAST adjustment Set PICTURE MODE VSM to BRIGHT PAL COLOUR 1 Receive a PAL broadcast 2 Select 2 V C from the SERVICE MENU 3 Select 6 COLOUR 4 Set the ...

Page 20: ...o select the NTSC 3 58 colour system 3 Set the initial setting value of NTSC 3 58 COLOUR 4 Adjust NTSC 3 58 COLOUR to set the value A in the figure to 3V NTSC 4 43 COLOUR When adjustment is done for NTSC 3 58 COLOUR appropriate values are automatically set for NTSC 4 43 COLOUR SUB TINT 1 adjustment Signal generator Remote control unit 2 V C 7 TINT Method of adjustment without measuring instrument ...

Page 21: ... colour bar 75 white 2 Press the COLOUR SYSTEM key to select the NTSC 3 58 colour system 3 Select 2 V C from the SERVICE MENU 4 Select 7 TINT 5 Set the initial setting value of NTSC 3 58 6 Connect the oscilloscope between TP 47G and TP E 7 Adjust NTSC 3 58 TINT to set the value B in the figure to 3V 8 Press the DISPLAY key twice to return to the normal screen NTSC 4 43 TINT When adjustment is done...

Page 22: ...1 32 0 12 V S CR 0 63 32 31 32 0 13 V LIN 0 63 32 31 32 0 14 V ZOOM 0 63 32 31 30 0 15 V SCROLL 0 63 32 31 32 0 Item Measuring instrument Test point Adjustment part Description V SLOPE adjustment Signal generator Remote control unit 4 DEF 2 V SLOPE PAL V SLOPE 1 Receive a PAL circle pattern signal of vertical frequency 50Hz 2 Select 4 DEF from the SERVICE MENU 3 Select 2 V SLOPE 4 Set the initial ...

Page 23: ... 13 V LIN 5 Set the initial setting value of 13 V LIN 6 Adjust 12 V S CR and 13 V LIN so that the spaces of each line on TOP CENTRE and BOTTOM become uniform NTSC V LINEARITY 1 Input a NTSC crosshatch signal 2 Make similar adjustment of NTSC V S CR in the same way as for PAL V S CR H PARALLEL adjustment Signal generator Remote control unit 4 DEF 10 ANGLE PAL H PARALLEL 1 Receive a PAL crosshatch s...

Page 24: ... DRIVE 3 B DRIVE 1 Select 5 VSM W B from the SERVICE MENU 2 Select BRIGHT with the MENU OK key 3 Set the value of 1 BRIGHT 5 HUE to the values shown in the table 4 Respectively select the VSM PRESET mode for SOFT and STANDARD 5 Select COOL with the MENU OK key 6 Set the values of 1 R DRIVE 3 B DRIVE to the value shown in the table 7 Select the W B preset for WARM and NORMAL respectively 8 Press th...

Page 25: ...Method of detection State of abnormality B1 over current protection An over current on the low B1 line is detected The main microcomputer detects the possible abnormality at 24 msec intervals and judges the results in every 16 time Of the 16 times if NG is detected more than 9 times it is judged that there is an abnormality When an abnormality has been detected the SUB POWER is turned off While th...

Page 26: ... No YA252 AV MULTIMEDIA COMPANY VIDEO DISPLAY CATEGORY 12 3 chome Moriya cho kanagawa ku Yokohama kanagawa prefecture 221 8528 Japan Victor Company of Japan Limited VPT Printed in Japan ...

Page 28: ...pply Type MM Metalized mylar capacitor PP Polypropylene capacitor MPP Metalized polypropylene capacitor MF Metalized film capacitor TF Thin film capacitor BP Bipolar electrolytic capacitor TAN Tantalum capacitor 3 Coils No unit Others µH As specified No indication Ceramic capacitor 2 Capacitors Capacitance value 1 or higher pF less than 1 µF Withstand voltage No indication DC50 V Others DC withsta...

Page 29: ... CIRCUIT DIAGRAM 2 9 PATTERNDIAGRAMS MAIN PWB PATTERN CRT SOCKET PWB PATTERN 2 11 VOLTAGECHARTS 2 13 WAVEFORMS 2 14 IC BOTTOM VIEW FRONT VIEW TOP VIEW 1 N N 1 OUT E IN IN OUT E 1 N TOP VIEW 1 N 1 N CHIP IC TRANSISTOR BOTTOM VIEW FRONT VIEW TOP VIEW CHIP TR E C B E C B C B E B G E S C D E C B E C B 2 2 No YA252 P W BOARD ASS Y NAME AV 21U4 SK MAIN P W BOARD SCW 1398A H2 CRT SOCKET P W BOARD SCW 301...

Page 30: ...KER R J809 HEADPHONE CRT SOCKET PWB R G B V01 IC351 RGB OUT V H DY01 DEF YOKE 1 8V V1 8V IC702 MAIN MEMORY 29 30 SIF IN VIF IN SIF DETECT VIDEO IDENT AUDIO CONTROL COMB FILTER Y DELAY ADJ COLOUR DEMOD SYNC SEP H DRIVE VIF DETECT AGC AFT SOUND TRAP DIGITAL SIGNAL PROCESS PEAKING SCAN VELOCITY MOD U V DELAY RGB MATRIX GAMMA AUDIO SELECT VIDEO SELECT I O PORT AUDIO SELECT V1 V3 L1 L3 VOUT QSSO AMO 24...

Page 31: ...R QUY160 150Y 1 2W MM1561JF X UN2226 X QUY160 100Y D G S UN2226 X D G S 1 2W KTA1267 YG T QUY160 075Y CH CH 1 2W QGA2501F1 06 QUY160 150Y QUY160 150Y QNN0281 002 DTC124ESA T QNN0281 003 QQR1114 001Z D G S SSM3K02F X D G S SSM3K02F X 1SS133 T2 NCB21HK 152X QUY160 200Y QUY160 125Y QUY160 150Y QUY160 150Y QUY160 200Y QUY160 075Y MA8039 H X LH22440 T16 TIMER LED ORANGE LE22440 T16 QNS0197 001 1 2W 1 2...

Page 32: ...SZ QFZ9077 104 QRL039J 221 FBT QQH0170 001 1 2W Vcc Vcc PUMP UP THERMAL PROTECTION AMP LA78040N QGA2501F1 05 QRL029J 223 MA8330 M X 1SS133 T2 1 2W MTZJ16C T2 RGP10J 5025 T3 1 2W MA8051 L X QUY160 100Y 1 2W QCZ0364 681 MA8075 H X QRE121J 6R8Y QRE121J 471Y QRF104K 3R9 QCZ9015 102Z QCZ9015 102Z MA8051 M X OMF2 QQS0272 001 MA8200 M X QUY160 100Y QUY160 050Y QRZ0107 474Z QAF0060 621 QSW1041 001 QMF51E2...

Page 33: ...0536 001 QNZ0536 001 QRZ0111 152 QRZ0111 152 QRZ0111 152 QGA2501C5 06 QRE122J 104 1 2W QQR1113 001Z SCW 3012A SCW 3013A QRE122J 222 QRE122J 222 QRE122J 222 1 4W 1 4W 1 4W 1 4W QFKC2EK 104Z QQL244J 5R6Z MTZJ7 5B T3 CH41005 H 5C CH41005 H 5C CH41005 H 5C CH41005 H 5C X X X X 4 7 250 X X X X X X X X X X X X X X X 100 150 150 150 X X 1000p X 9 9 9 6 X x NOTE 1 Refer to page 2 13 for voltages of this c...

Page 34: ...195 W078 92 R7 Q706 R569 IC801 HS401 Y718 W114 R711 W188 W158 R722 R723 R724 W053 R725 W057 W058 CL001 Q702 CF101 X301 C302 C303 R309 W003 R312 C305 C304 W0 36 C306 W038 C307 C309 07 R3 R308 R310 K921 K922 R931 R311 CN0E5 TH901 R313 W022 J806 R314 W028 Q305 Q306 R528 SF101 84 W0 C925 R933 W103 W087 C909 R520 W092 SF102 W094 W095 K301 IC401 C310 L301 L302 L303 R921 W105 R903 R315 R316 R317 C311 C31...

Page 35: ... 3 1 2 3 1 3 0 1 IC921 1 288 4 3 0 4 0 5 31 8 6 3 6 7 0 9 IC972 1 1 3 2 0 3 3 3 IC973 1 14 2 2 11 9 3 0 4 3 2 IC974 1 1 8 2 0 3 0 4 0 5 5 2 9 6 0 7 3 2 IC975 1 5 2 2 5 0 3 0 4 3 3 IC976 1 1 8 2 0 3 0 4 0 5 5 3 0 6 0 7 3 2 Q101 E 2 2 C 11 6 B 3 0 Q521 E 0 C 8 9 B 0 Q522 E 0 C 112 0 B 0 1 Q571 E 115 3 C 0 B 114 8 Q572 E 0 C 3 2 B 0 Q601 E 8 1 C 0 2 B 8 2 Q602 E 0 2 C 0 2 B 0 Q605 E 0 C 2 3 B 0 2 Q60...

Page 36: ... No YA252 AV MULTIMEDIA COMPANY VIDEO DISPLAY CATEGORY 12 3 chome Moriya cho kanagawa ku Yokohama kanagawa prefecture 221 8528 Japan Victor Company of Japan Limited VPT Printed in Japan ...

Page 37: ...pacitor MF R Metal Film Resistor MF CAP Metalized Film Capacitor MG R Metal Glazed Resistor MM CAP Metalized Mylar Capacitor MP R Metal Plate Resistor MP CAP Metalized Polystyrol Capacitor OM R Metal Oxide Film Resistor PP CAP Polypropylene Capacitor CMF R Coating Metal Film Resistor PS CAP Polystyrol Capacitor UNF R Non Flammable Resistor TF CAP Thin Film Capacitor CH V R Chip Variable Resistor M...

Page 38: ... LIST 1 3 3 EXPLODED VIEW 1 3 3 EXPLODED VIEW PARTS LIST 2 3 4 EXPLODED VIEW 2 3 5 PRINTED WIRING BOARD PARTS LIST 3 6 MAIN P W BOARD ASS Y SCW 1398A H2 3 6 CRT SOCEK P W BOARD ASS Y SCW 3013A H2 3 9 REMOTE CONTROL UNIT PARTS LIST RM C1261 2H 3 9 PACKING 3 10 PACKING PARTS LIST 3 10 ...

Page 39: ...DED VIEW 1 P W B ASS Y AV 21U4 SK MAIN P W B SCW 1398A H2 CRT SOCKET P W B SCW 3013A H2 REMOTE CONTROL UNIT RM C1261 2H Ref No Part No Part Name Description Local 1 LC10156 006A HK FRONT CABINET 2 CM47783 003 H JVC MARK 3 LC30337 002A H CONTROL KNOB 4 LC32676 001A H LED LENS 1 3 4 2 ...

Page 40: ...x 16mm x5 12 QYSBSF3010ZA TAP SCREW M3 x 10mm x2 13 LC10157 004A HK REAR COVER 14 CM48144 004 H PB STOPPER 15 LC32677 001A H PW CORD CLAMP 16 QMPR340 165 K2 POWER CORD 1 65m BLACK 17 LC30336 003A H POWER KNOB 18 A48457 3 H SPRING 19 CHGB0016 0B FH BRAIDED WIRE 20 QYSBSFG4016ZA TAP SCREW M4 x 16mm x2 21 QAS0054 001 SPEAKER SP01 22 GG20024 001B H RATING LABEL 30 SCW 1398A H2 MAIN BOARD ASSY 31 SCW 3...

Page 41: ... No YA252 3 5 EXPLODED VIEW 2 MAIN PWB 19 21 20 14 13 22 11 12 30 CRT SOCKET PWB FRONT CABINET 31 16 15 17 L01 V01 T522 18 ...

Page 42: ...R124 400A T2 SI DIODE D981 1SS133 T2 SI DIODE C001 NCB31HK 103X C CAPACITOR 0 01uF 50V K C002 QETN1HM 106Z E CAPACITOR 10uF 50V M C003 NCB31CK 104X C CAPACITOR 0 1uF 16V K C004 QETN1CM 477Z E CAPACITOR 470uF 16V M C005 NCB31HK 222X C CAPACITOR 2200pF 50V K C006 QETN1CM 336Z E CAPACITOR 33uF 16V M C101 NCB31HK 472X C CAPACITOR 4700pF 50V K C102 NCB31HK 472X C CAPACITOR 4700pF 50V K C103 NCB31HK 472...

Page 43: ...0uF 16V M C958 QETN1VM 337Z E CAPACITOR 330uF 35V M C960 QETM1VM 228 E CAPACITOR 2200uF 35V M Ref No Part No Part Name Description Local C962 NCB31CK 104X C CAPACITOR 0 1uF 16V K C963 NCB31HK 102X C CAPACITOR 1000pF 50V K C964 QETN1VM 107Z E CAPACITOR 100uF 35V M C965 NCB31CK 104X C CAPACITOR 0 1uF 16V K C967 QETN1CM 476Z E CAPACITOR 47uF 16V M C968 QETN1CM 476Z E CAPACITOR 47uF 16V M C975 QETN1CM...

Page 44: ...SISTOR 10kΩ 1 16W J R790 NRSA63J 102X MG RESISTOR 1kΩ 1 16W J R791 QRE121J 471Y C RESISTOR 470Ω 1 2W J R793 NRSA63J 101X MG RESISTOR 100Ω 1 16W J R794 NRSA63J 222X MG RESISTOR 2 2kΩ 1 16W J R795 NRSA63J 104X MG RESISTOR 100kΩ 1 16W J R796 NRSA63J 0R0X MG RESISTOR 0Ω 1 16W J R797 NRSA63J 102X MG RESISTOR 1kΩ 1 16W J Ref No Part No Part Name Description Local R798 NRSA63J 103X MG RESISTOR 10kΩ 1 16W...

Page 45: ... LED HOLDER Ref No Part No Part Name Description Local IC351 TDA6107AJF N1 IC D350 MTZJ7 5B T3 Z DIODE D351 EU01N T3 SI DIODE D354 RGP10J 5025 T3 SI DIODE D355 RGP10J 5025 T3 SI DIODE D356 RGP10J 5025 T3 SI DIODE C351 QCB32HK 102Z C CAPACITOR 1000pF 500V K C352 QETM2EM 475 E CAPACITOR 4 7uF 250V M C353 QFKC2EK 104Z MM CAPACITOR 0 1uF 250V K C358 QCZ0131 821 C CAPACITOR 820pF 2kV K R351 QRE142J 101...

Page 46: ...al 1 GG10281 008A H PACKING CASE 2 LC10158 005B H CUSHION ASSY 4pcs in 1set 3 GG30097 003A H POLY BAG 4 GG30096 001A H POLY BAG 5 BATTERY AA R6 x2 6 GGT0047 001C H INST BOOK 7 BT 54012 4H WARRANTY CARD 8 RM C1261 2H REMOCON UNIT 9 GG20025 005A H CORNER LABEL x2 3 5 6 7 4 8 2 9 9 1 2 ...

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