Sharp LC-12A2E Page 37 Service Manual Download | Manualshive

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Description

Code

LC-12A2E

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Summary of Contents for LC-12A2E

Page 1: ...UAL 4 OUTLINE DIMENSION FIGURE 5 DISASSEMBLY OF THE SET 6 ADJUSTING PROCEDURE OF EACH SECTION 8 TROUBLE SHOOTING TABLE 11 CHASSIS LAYOUT 14 BLOCK DIAGRAM 16 DESCRIPTION OF SCHEMATIC DIAGRAM 18 SCHEMATIC DIAGRAMS 19 PRINTED WIRING BOARD ASSEMBLIES 26 PARTS LIST Ë ELECTRICAL PARTS 31 MAIN UNIT 31 TERMINAL UNIT 35 SWITCH UNIT 37 R C UNIT 37 Ë SUPPLIED ACCESSORIES PARTS 38 Ë PACKING PARTS 38 Ë CABINET...

Page 2: ... of any circuit should be attempted 2 Disconnect AC power before servicing BEFORE RETURNING THE RECEIVER Fire Shock Hazard Before returning the receiver to the user perform the following safety checks 1 Inspect all lead dress to make certain that leads are not pinched and check that hardware is not lodged between the chassis and other metal parts in the receiver 2 Inspect all protective devices su...

Page 3: ... cd m2 Lamp life 60 000 hours Viewing angles H 160 V 160 Audio amplifier 0 6 W 2 2 5 W 1 Speakers 3 4 cm 2 pcs 65 mm φ 1 pc Terminals AV1 AV IN1 S VIDEO IN COMPONENT AV2 AV IN2 AV OUT ANTENNA DIN HEADPHONE 3 5 mm φ jack Rear OSD language English German Dutch French Italian Spanish Swedish Power requirement DC 12V AC 110 240 V 50 60 Hz Weight 3 0 kg incl stand excl accessories Accessories R C Batte...

Page 4: ... not light when the main power is off Rear control panel Remote sensor window The actual location is not visible To change the angle of the TV set tilt the screen 10 degrees forward or 20 degrees backward It can also be rotated 90 degrees Please adjust the angle so that the TV set can be watched most comfortably Main unit front view Main unit rear view Remote control ...

Page 5: ...5 LC 12A2E OUTLINE DIMENSION FIGURE Unit mm ...

Page 6: ...rom the FFC connector 8 on the main PWB 10 Remove the connector 9 from the ir unit 11 Remove the connector 0 from the switch PWB 12 Remove the right and left speaker connectors q on the terminal PWB Disassembly of the main PWB 1 Disconnect the flexible cable connectors w and e from the LCD panel 2 Disconnect the cable connectors r and t from the fluorescent lamp 3 Remove the four screws y Disassem...

Page 7: ...shield case 3 Remove the light guide plate holder 4 Remove the reflection panel 5 Remove the light guide plate lamp unit 6 Remove the light guide plate 7 Remove the lamp unit 8 Remove the fixing angle 9 Remove the ITO sheet diffusion sheet and reflection polarizing sheet 1 1 1 3 2 4 5 6 7 8 9 LCD Display Unit Reflection Polarising Sheet Spacer Spacer Fixing Angle Shield Case Light Guide Plate Hold...

Page 8: ...nu select key input Next item If the menu select key is input while the bottom item is selected it moves to the top item on the next page The adjustment item makes a toggle operation with the video select key input Previous item If the video select key is input while the top item is selected it moves to the bottom item on the previous page If the auto preset key is input while an item is selected ...

Page 9: ...ignal must not be input from the antenna 6 3 33 9 L VCO adjustment 1 Set the sound system to the L mode 2 Send the CW signal of 33 9MHz 90dBµV from SG to TP3201 IF OUT 3 Adjust the R3233 volume so that a voltage of 2 5 0 2V is obtained at TP3203 AFT Note 1 The input impedance of the digital voltmeter must be 1MΩ or more Note 2 After performing the adjustment of the item 6 2 execute this item Note ...

Page 10: ...0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 2 C O M B I A S 1 1 7 N T S C T A M P 2 7 P A L T A M P 2 7 S E C A M T A M P 2 7 P A L M T A M P 2 7 P A L N T A M P 2 7 T V H P E A K I N G 3 R C U T O F F 3 G C U T O F F 0 B C U T O F F 9 G 3 B 3 R 3 0 0 0 0 0 0 G 1 B 4 Y 0 0 0 0 B 5 0 1 2 3 4 5 6 7 8 9 10 11 12 13 Y Data White 75 3 Item 6 7 White balance adjustment 1 Recei...

Page 11: ... and their peripheral parts No S VIDEO output No Are inputs at Pins 71 and 72 of IC802 as specified Check SC3301 SY line SC line and peripheral parts No COMPONENT output No Is input at Pins 4 5 6 and 75 of IC802 as specified Check J3404 J3405 J3406 DVD Y line CB line CR line and peripheral parts Are Pins 65 and 66 of IC2001 both at L Check IC402 and its peripheral parts Yes Yes Yes Yes Check the l...

Page 12: ...1201 at H Yes Yes No Are the oscillation waveforms at the primary side of T751 and T752 as specified Yes Replace F3751 No Is input at Pin 71 of IC802 as specified Check SC3301 SC line and peripheral parts No Are data signals at pins 31 57 of IC802 as specified Check each DC pin voltages of IC802 and its peripheral parts Check input and output signals of IC1201 Check the line IC1201 and its periphe...

Page 13: ... their peripheral parts No sound from headphone Yes No Is Pin 55 of IC2001 at L Check the headphone and its peripheral parts Check Q306 J3410 and their peripheral parts Yes No Is Pin 54 of IC2001 at L No Are input at Pin 5 as well as output at Pin 2 of IC302 as specified Yes Check the speaker and its peripheral parts Check the line IC901 IC303 and their peripheral parts Muting effect is on Check t...

Page 14: ...14 LC 12A2E A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 CHASSIS LAYOUT MAIN Unit Side A MAIN Unit Side B ...

Page 15: ...15 LC 12A2E A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 TERMINAL Unit SWITCH Unit R C Unit ...

Page 16: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 A B C D E F G H I J LC 12A2E LC 12A2E 16 17 BLOCK DIAGRAM ...

Page 17: ...ion of resistors and capacitors Resistors Unit Nonindication Ω K kΩ M MΩ Error Nonindication 10 J 5 F 1 D 0 5 Capacitor Unit Nonindication or µ µF P or p pF IMPORTANT SAFETY NOTICE PARTS MARKED WITH å ARE INPORTANT FOR MAINTAINING THE SAFETY OF THE SET BE SURE TO REPLACE THESE PARTS WITH SPECIFIED ONES FORMAINTAINING THE SAFETY AND PERFORMANCE OF THE SET CAUTION This circuit diagram is original on...

Page 18: ...19 LC 12A2E Ë SWITCH and R C Unit A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 SCHEMATIC DIAGRAMS ...

Page 19: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 A B C D E F G H I J LC 12A2E LC 12A2E å AND SHADED COMPONENTS SAFETY RELATED PARTS Ë MAIN Unit 1 2 20 21 ...

Page 20: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 A B C D E F G H I J LC 12A2E LC 12A2E å AND SHADED COMPONENTS SAFETY RELATED PARTS Ë MAIN Unit 2 2 22 23 ...

Page 21: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 A B C D E F G H I J LC 12A2E LC 12A2E å AND SHADED COMPONENTS SAFETY RELATED PARTS Ë TERMINAL Unit 24 25 ...

Page 22: ...26 LC 12A2E A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 PRINTED WIRING BOARD ASSEMBLIES Main Unit Side A ...

Page 23: ...27 LC 12A2E Main Unit Side B A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 ...

Page 24: ...28 LC 12A2E A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Terminal Unit Side A ...

Page 25: ...29 LC 12A2E A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Terminal Unit Side B ...

Page 26: ...30 LC 12A2E A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Switch Unit Side A Switch Unit Side B R C Unit Side A R C Unit Side B ...

Page 27: ...3 VHiNJM4565V 1 J NJM4565V AF IC1104 VHiNJM4565V 1 J NJM4565V AF IC1105 VHiBU4053V 1 J BU4053V AE IC1106 VHiNJM4580V 1 J NJM4580V AE IC1107 VHiNJM4580V 1 J NJM4580V AE IC1108 VHiNJM4580V 1 J NJM4580V AE IC1109 VHiNJM353M 1 J NJM353M AG IC1110 VHiBU4053V 1 J BU4053V AE IC1201 RH iX3378CEZZ J IX3378CE AY IC1202 VHiPD485505 2 J PD485505 AY IC2001 RH iX3477CEZZQ J IX3477CE BA IC2002 VHiPST529DM 1 J PS...

Page 28: ...B C817 VCKYTV1CF684Z J 0 68 16V Ceramic AB C818 RC KZ1025CEZZ J 1 10V Ceramic AB C819 RC KZ1025CEZZ J 1 10V Ceramic AB C820 VCKYCY1EF104Z J 0 1 25V Ceramic AA C821 VCEAPW1CN477M J 470 16V Electrolytic AE C822 RC KZ1025CEZZ J 1 10V Ceramic AB C825 RC KZ1025CEZZ J 1 10V Ceramic AB C826 VCKYCY1CF224Z J 0 22 16V Ceramic AA C827 VCKYCY1CF224Z J 0 22 16V Ceramic AA C830 VCEAPF0GW107M J 100 4V Electrolyt...

Page 29: ... R315 VRS CY1JF242J J 2 4k 1 16W Metal Oxide AA R316 VRS CY1JF512J J 5 1k 1 16W Metal Oxide AA R317 VRS CY1JF242J J 2 4k 1 16W Metal Oxide AA R318 VRS CY1JF000J J 0 1 16W Metal Oxide AA R319 VRS TX2HF8R2J J 8 2 1 2W Metal Oxide AA DUNTKA077FE10 MAIN PWB UNIT Continued C836 VCE9PF1CN475M J 4 7 16V Electrolytic AD C839 VCKYCY1CF224Z J 0 22 16V Ceramic AA C840 VCKYCY1CF224Z J 0 22 16V Ceramic AA C841...

Page 30: ...Oxide AA R1105 VRS CY1JF104J J 100k 1 16W Metal Oxide AA R1106 VRS CA1JF333J J 33k 1 16W Metal Oxide AA R1107 VRS CA1JF103J J 10k 1 16W Metal Oxide AA R1108 VRS CA1JF103J J 10k 1 16W Metal Oxide AA DUNTKA077FE10 MAIN PWB UNIT Continued R320 VRS CY1JF150J J 15 1 16W Metal Oxide AA R321 VRS CY1JF242J J 2 4k 1 16W Metal Oxide AA R322 VRS CY1JF472J J 4 7k 1 16W Metal Oxide AA R323 VRS CY1JF472J J 4 7k...

Page 31: ...etal Oxide AA R1114 VRS CY1JF103F J 10k 1 16W Metal Oxide AA R1115 VRS CY1JF102J J 1k 1 16W Metal Oxide AA R1116 VRS CY1JF102J J 1k 1 16W Metal Oxide AA R1117 VRS CY1JF102J J 1k 1 16W Metal Oxide AA R1118 VRS CY1JF823F J 82k 1 16W Metal Oxide AA R1119 VRS CY1JF472F J 4 7k 1 16W Metal Oxide AA R1120 VRS TW2ED5R6J J 5 6 1 4W Metal Oxide AA R1121 VRS CY1JF181J J 180 1 16W Metal Oxide AA R1123 VRS CY1...

Page 32: ...e AA R3304 VRS CY1JF102J J 1k 1 16W Metal Oxide AA R3305 VRS TQ2BD750J J 75 1 8W Metal Oxide AA R3306 VRS CY1JF101J J 100 1 16W Metal Oxide AA R3308 VRS CY1JF000J J 0 1 16W Metal Oxide AA R3310 VRS CY1JF000J J 0 1 16W Metal Oxide AA R3313 VRS CY1JF000J J 0 1 16W Metal Oxide AA R3314 VRS CY1JF101J J 100 1 16W Metal Oxide AA R3315 VRS CY1JF000J J 0 1 16W Metal Oxide AA R3319 VRS TQ2BD750J J 75 1 8W ...

Page 33: ...2CEZZ J Fuse Holder AA å FH3703 QFSHD1002CEZZ J Fuse Holder AA å FH3704 QFSHD1002CEZZ J Fuse Holder AA å FH3751 QFSHD1002CEZZ J Fuse Holder AA å FH3752 QFSHD1002CEZZ J Fuse Holder AA å F3701 QFS C1223CEZZ J Fuse 1 25A AD å F3702 QFS C1223CEZZ J Fuse 1 25A AD å F3751 QFS C2023CEZZ J Fuse 2A AD J3401 QJAKE0200CE02 J Jack AE J3402 QJAKE0200CE09 J Jack AE J3403 QJAKE0200CE04 J Jack AE J3404 QJAKE0200C...

Page 34: ...NGQ9209CEFW J ITO Sheet Angle AE 6 LHLDZ2144CEKZ J Light Guide Plate Holder AT 7 PGiDM0061CEZZ J Light Guide Plate AY 8 PSHEP0211CEZZ J ITO Sheet AU 10 PSHEP0212CEZZ J Diffusion Sheet AK 11 PSHEP0213CEZZ J Reflection Polarising Sheet BB 12 PSHEP0214CEZZ J Reflection Panel AK 13 QPWBHA141CEZZ J Source FPC AR 16 PSLDM4603CEFW J Shield Case AN 17 PSPAZ0292CEZZ J Panel Spacer AB 18 PSPAZ0376CEZZ J Bot...

Page 35: ... 34 30 27 16 6 12 7 18 18 27 35 29 33 4 8 10 11 21 22 5 19 20 17 17 42 13 40 1 8 1 7 1 2 1 1 10 1 5 1 14 1 6 1 13 1 6 1 14 34 1 13 1 1 1 3 23 1 4 41 1 9 1 9 1 11 2 3 2 2 2 14 2 7 2 12 2 5 2 9 2 1 2 8 2 13 34 34 2 6 2 12 2 11 26 28 2 4 35 2 7 2 10 31 36 2 15 38 37 43 3 2 3 9 3 11 3 2 32 3 9 3 6 3 3 3 1 3 8 3 5 3 10 3 12 3 7 3 10 3 4 25 ...

Page 36: ...rol RRMCG1618CESA Battery 2 pcs UBATU0026GEZZ SPAKX2902CEZZ Buffer Material SPAKP0781CEZZ Wrapping Paper TiNS 7202CEZZ LC 12A2E TiNS 7259CEZZ LC 12A2E K Operation Manual LHLDW1028GEZZ Cable Clamp 2 pcs SSAKA0160CEZZ Operation Manual Polyethylene Bag SPAKF0495CEZZ Pat SPAKF0404CEZZ Packing Material SPAKX2902CEZZ Buffer Material SPAKC5473CEZZ Packing Case FRONT å å å TLABN0157CEZZ Barcode Label TLAB...

Page 37: ...41 Ref No Part No Description Code Ref No Part No Description Code LC 12A2E ...

Page 38: ...29 2193 Japan COPYRIGHT C 2000 BY SHARP CORPORATION ALL RIGHTS RESERVED No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher LC 12A2E D Japan P Japan TQ0999 S Oct 2000 Printed in JAPAN NA DS ...

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