JVC HV-34LH21, Service Manual

Page 1: ...COLOUR TELEVISION 52200 2003 11 HV 34LH21 HV 34LH21 E HV 34LH51 S HV 34LH71 G TABLE OF CONTENTS 1 PRECAUTION 1 3 2 SPECIFIC SERVICE INSTRUCTIONS 1 4 3 DISASSEMBLY 1 7 4 ADJUSTMENT 1 14 5 TROUBLESHOOTING 1 33 BASIC CHASSIS ML RM C1350 HV 34LH71 RM C1351 HV 34LH21 RM C1353 HV 34LH51 ...

Page 2: ... and the SYSTEM CONSTANT SET screen of Fig 2 will be displayed d Check the setting values of the SYSTEM CONSTANT SETTING If the value is different select the setting item with the MENU key and set the correct value with the MENU key e Press the OK key to memorize the setting value f Press the DISPLAY key and return to the normal screen 5 Receive channels setting Refer to the OPERATING INSTRUCTIONS...

Page 3: ...ANNEL ONLY DIGITAL VNR AUTO OTHER NON SPACE Digi Pure AUTO AUTO PROGRAM GROUP 1 HV 34LH21 PULL DOWN AUTO TELETEXT LANGUAGE GROUP 2 Unused COLOUR SYSTEM TV Depends on PR CH EXT AUTO GROUP 3 HV 34LH21 E GROUP 4 HV 34LH51 S ZOOM REGULAR HV 34LH71 G PICTURE TILT Center GROUP 5 Unused FAVORITE CH SETTING PRO1 RED PRO2 GREEN PRO3 YELLOW PRO4 BLUE PICTIRE MODE BRIGHT DIGITAL VNR AUTO WHITE BALANCE MID Di...

Page 4: ...4 TOP BLK 15 BTM BLK 16 YUV BRIGHT 17 YUV CONT 18 YUV COLU 19 YUV COLV 20 YUV YDEL 21 YUV UVDEL 22 YCDELM COOL WARM NORMAL 6 WDR R 7 WDR G 8 WDR B Do not adjust 6 STATUS Do not adjust 1 SOFT 7 PIP HV 34LH51 S HV34LH71 G only 1 HUE 2 SC ADJ 3 PIP HOR POS 4 PIP VER POS 5 YCDELS 8 SURROUND 1 CH CONFIG 2 MATRIX 3 REPRODUCT 4 CENTER MODE 5 SPATIAL EFF 6 VIRTUAL EFF 7 BASS EFFECT 8 HARM 9 HPF 10 LPF 11 ...

Page 5: ...Unless otherwise specified in the adjustment items preset the following functions with the REMOTE CONTROL UNIT 4 2 MEASURING INSTRUMENT AND FIXTURES 1 DC voltmeter or digital voltmeter 2 HV voltmeter 3 Oscilloscope 4 Signal generator Pattern generator PAL SECAM NTSC 5 Remote control unit 4 3 ADJUSTMENT ITEMS CHECK ITEMS B1 POWER SUPPLY check HIGH VOLTAGE check TUNER IF CURCUIT IF VCO check FOCUS F...

Page 6: ...PWB FRONT CONTROL PWB 1 2 FRONT CONTROL PWB 2 2 POWER DEF PWB CRT SOCKET PWB AV SW PWB MEMORY IC IC701 LF901 F901 C901 POWER IC101 TV VIDEO EXIT VOL UP VOL DOWN HEAD POHONE FRONT MENU OK CH DOWN CH UP CRT BRAIDED WIRE TUNER ANT IN IC001 MICON IC301 1pin B1 TP 91 2pin NC 3pin X RAY 4pin X RAY 5pin GND IN VIDEO 4 R L MONO VIDEO S VIDEO AUDIO R4 L4 V4 S IN SP R SP L DEG COIL DY FRONT TOP FRONT CRT PC...

Page 7: ...sts the setting values of the VIDEO circuit 3 AUDIO This mode adjusts the setting values of the multiplicity AUDIO circuit 4 DEF This mode adjusts the setting values of the DEFLECTION circuit for each aspect mode given below 5 VSM PRESET This mode adjusts the initial setting values of BRIGHT STANDARD and SOFT VSM Video Status Memory 6 STATUS It is no requirement to adjustment Do not adjust 7 PIP T...

Page 8: ...F 5 VSM PRESET 7 PIP 8 SURROUND 2 MENU key Select setting items 3 MENU key Set adjust the setting values of the setting items 4 MENU OK key Memorize the setting value Before storing the setting values in memory do not press the CH TV POWER ON OFF key if you do the values will not be stored in memory 5 DISPLAY key Return to the SERVICE MENU screen 6 STATUS 9 SHIPPING OFF AND 0 BUS FREE It is not re...

Page 9: ...7 WDR B 8 BRIGHT 9 CONTRAST 10 COLOUR 11 HUE BRIGHT STANDARD SOFT 12 SHARP 13 SC ADJ 14 TOP BLK 15 BTM BLK 16 YUV BRIGHT 17 YUV CONT 18 YUV COLU 19 YUV COLV 20 YUV YDEL 21 YUV UVDEL 22 YCDELM 5 VSM PRESET 6 STATUS Do not adjust 7 PIP HV 34LH51 S HV 34LH71 G only 8 SURROUND 2 V C 3 AUDIO Do not adjust 4 DEF 1 ERR LIMIT 2 A2 ID THR 3 SYSTEM 4 SUB BASS 5 SUB TREBLE 1 V SHIFT 2 V SIZE 3 H CENT 4 H SIZ...

Page 10: ...0 0 0 0 7 WDR B 0000 0255 150 150 150 150 0 0 0 8 BRIGHT RF 128 0127 50 50 50 50 VIDEO 2 2 2 2 3 3 7 9 CONTRAST RF 0000 0063 42 42 42 42 VIDEO 7 7 7 7 10 COLOUR RF 0000 0063 48 55 30 6 VIDEO 3 0 0 0 8 4 10 11 HUE RF 064 0063 2 1 VIDEO 0 0 12 SHARP RF 015 0015 5 5 5 5 0 0 0 VIDEO 0 0 0 0 0 0 0 13 SC ADJ 0000 0063 18 18 18 18 14 TOP BLK 0000 0255 35 35 46 46 35 46 46 15 BTM BLK 127 0511 15 15 37 37 ...

Page 11: ... H CENT 128 0127 15 1 2 0 0 0 4 H SIZE 128 0127 14 1 0 0 0 0 5 TRAPEZ 063 0064 3 0 0 0 3 0 6 EW PIN 128 0127 17 0 0 0 1 0 7 COR UP 064 0064 0 1 0 0 1 6 8 COR LO 064 0064 1 0 0 0 0 0 9 COR UP S 064 0064 2 2 0 0 2 5 10 COR LO S 064 0064 4 0 0 0 0 0 11 HUE 128 0127 5 0 0 0 0 0 12 BOW 128 0127 0 0 0 0 0 0 13 V S CR 064 0063 17 0 0 0 0 0 14 V LIN 064 0063 2 0 0 0 0 0 Setting item Variable range Initial...

Page 12: ...98 32 159 Setting item Variable range Initial setting value Regular RF Composite Video S Video Component video PAL SECAM NTSC 3 58 NTSC 4 43 50Hz i 60Hz i 60Hz p 5 YCDELS RF 016 0015 1 1 1 1 VIDEO 1 1 1 1 Setting item Variable range Initial setting value LOW HIGH 1 CH CONFIG 0000 0001 1 1 2 MATRIX 0000 0127 16 16 3 REPRODUCT 0000 0015 6 6 4 CENTER MODE 0000 0015 3 3 5 SPATIAL EFF 0000 0127 40 50 6...

Page 13: ...PWB CRT VM COIL CRT SOCKET PWB SP R IC203 B OUT IC202 R OUT IC201 G OUT ROTATION COIL SP L HEAD PHONE T551 HVT TU001 TUNER IC701 MEMORY IC601 FRONT CONTROL PWB 2 2 VIDEO 4 Y C 4 V 4 L R 4 VIDEO 1 VIDEO 2 VIDEO 3 LINE OUT V 1 L R 1 V 2 L R 2 CB CR L R 3 L R2 OUT Q501 H DRIVE TV L R VTV Y C 4 V 4 L R 4 V3 Y Y C 1 V 1 L R 1 V 2 L R 2 L R 3 L R L R L R Y Cb Cr L R L R HD VD R G B VM R G B VM REMO KEY ...

Page 14: ...001 Q002 Y001 C663 C010 C003 L001 C662 HS651 C119 K101 C664 C120 C660 C131 C130 C123 C122 K102 X101 C118 C117 C101 C102 C127 C125 C128 C126 C124 C105 C106 C121 C103 LC101 L102 C104 R102 R101 L101 IC101 Q631 C667 R644 R643 R642 C661 C658 C659 C655 C656 CN00A CN0SP R624 R625 R660 R623 R659 D652 R636 R629 R632 C666 R633 K642 K641 C642 C641 C129 H P_R H P_L RTV LTV D632 R L 8V 9V Y013 Y014 D205 K002 C...

Page 15: ... R_OUT L_OUT P ON OFF ECO_ON OFF 3D_ON OFF ECO REMOCON KEY3 KEY2 KEY1 S_4 12V QGB1505J1 35 NCF31AZ 105X NCF31AZ 105X NCF31AZ 105X RESET NCF31AZ 105X NCF31AZ 105X CH MM1565AF X QGA2501F1 06 MA3056 M X MA3056 M X MA3056 M X MA3056 M X QGA2501C5 03Z R1 2 80 QGA2501C1 10 80 80 LA6515 ROTATION QGB1506L1 16 QGB1506L1 16 QGB1506L1 16 KTC3199 YG T 80 INV MUTING MUTING DTC323TK X MUTING DTC323TK X CH AN78L...

Page 16: ...HT11B 002Q 1 SC 200V MY QFM72DJ 393 CH DAF 1 2W 1 2W QETN1CM 107Z TF MY 1 2W 2SA1208 ST Z1 T MTZJ27B T2 CH BA10393 CE41832 001 H DRIVE D G S BSN304 T AU01Z T2 MTZJ7 5B T2 1 2W LA7876NZ QRZ9017 470 QETM2CM 227 H OUT 2SC5857 LB T QETN1VM 107Z DTC144ESA T OMF3W MY QFLC2AJ 104Z TF SC TF QETM1VM 108 TF OMF2W 1 2W OMF1W QQR0621 002Z QRT01EJ 1R0X QQR0621 002Z 1SR35 400A T2 FB OLP VIN OCP INH S GND D STR ...

Page 17: ...4 D213 C124 L204 QQL26AK 820Z TDA6111Q R OUT 1 2S QRC121K 152Z H 2SA1530A QR X LC31150 002A 1 2W QETN1CM 107Z LC31150 002A LC31150 002A TDA6111Q B OUT H 2SA1837 CHGY0146 0A G NCF31CZ 104X QJK002 063631 1 2W KTC3199 YG T CE41492 001Z FR QRZ9021 561 1 2W 2SC4793 CEHP00N 001Q 1 2W 1 2W RH1S T3 CE41832 001 CHHB003 100R G WJM0048 002A RH1S T3 1 2W CE41492 001Z MA3062 M X 1 2W CEHP00N 001Q TDA6111Q G OU...

Page 18: ...6 3 B2 SML 0Z502A SML 0Z501A VSP9407B VSP9405B 6 3 1 2W 1 2W 6 3 B1 656o4 656o3 Vout RESET VDDP3 VSSP3 CLKout VDDD3 VSSD3 656o2 656o1 656o0 VSSD4 VDDD4 VSSAfbl FBL1 FBL2 VDDAfbl Rin1 Gin1 CVBso3 CVBso2 CVBso1 VSSAc2 VDDAc2 VDDD1 VSSD1 VDDAppl Xout Xin TCLK VDDP1 VSSP1 656Hin CLKF20 I656iclk I656i0 I656i1 I656i2 I656i3 I656i4 DFVBL H2SYNC V2SYNC NC ASG1 HFLB SAFETY VPROT RSW2 RSW1 SENSE GNDM VERT V...

Page 19: ...X NQL034K 4R7X D G S D G S OPEN 1 1 1 150p 47k DI 0 OPEN 1 4 7k 4 7k 0 OPEN OPEN OPEN OPEN OPEN 0 10k 10k 10k OPEN OPEN OPEN OPEN NRZ NRZ OPEN OPEN OPEN OPEN OPEN OPEN 100k 1 82k 033 OPEN OPEN 1k 033 33p OPEN 33p OPEN 0 OPEN 1 1 1 1 16 100 6 3 OPEN 47 16 1 OPEN 47 16 1 OPEN 0 NRZ NRZ OPEN OPEN OPEN 10 16 10 16 10 16 OPEN OPEN OPEN 4 7k OPEN 4 7 1k 1k 1k 47k 1k 1k 1k 1k 100k 47k 1k 1 NRZ 1 1 1 1k 1...

Page 20: ...5 R117 R122 Q102 C116 R123 R124 R125 Q103 C117 R132 R133 R134 Q106 C113 J105 C157 QGB1505K1 35 AV_COMPULINK QNZ0454 001 QNN0348 001 QNN0349 002 QNN0349 001 QNN0349 001 QNN0349 001 0015 0015 X X 0 0 0 X 0 0 0 0 X 33k 0015 0015 0015 0015 0047 0047 75 75 75 75 75 75 75 4 4 4 10 50 22k 22k 470 1 10 50 22k 15k 2 2k 1 10 50 22k 15k 2 2k 1 BW 10 50 V2 V_OUT L_OUT R_OUT S_1 V1 AV_LINK Y1 Cr_GND C1 V3 Y_GN...

Page 21: ...CN0PW LF901 VA901 C901 LC002 QGA2501C5 04Z QGF1220C2 19 QJB003 035433 1 2W 1 2W 3D PHONIC YLW L4IN CEMN011 002 ECO GRN R4IN CEMN011 003 V4IN CEMN011 001 GP1UM281QK QSW0619 003Z NCB31CK 104X QSW0619 003Z QSW0619 003Z MA3068 M X POWER SPR 39MVWF QSW0750 001 LED SW QNS0155 001 HEADPHONE CHRC12 24 TF LED SW QMCC004 C01 QGA2501C1 12 QSW0619 003Z QSW0619 003Z QSW0619 003Z QMFZ027 5R0 J1 CHGH0001 0H N AC...