Sharp LC 15A2U, Service Manual

Page 1: ...OF THE SET 8 ADJUSTING PROCEDURE OF EACH SECTION 9 TROUBLE SHOOTING TABLE 11 CHASSIS LAYOUT 14 BLOCK DIAGRAM 16 DESCRIPTION OF SCHEMATIC DIAGRAM 18 SCHEMATIC DIAGRAM 19 PRINTED WIRING BOARD ASSEMBLIES 26 PARTS LIST Ë ELECTRICAL PARTS 31 MAIN UNIT 31 TERMINAL UNIT 36 SWITCH UNIT 37 R C UNIT 37 Ë ACCESSORIES PARTS 37 Ë PACKING PARTS 37 Ë CABINET PARTS LIST 38 Ë CABINET AND MECHANICAL PARTS 39 PACKIN...

Page 2: ...n 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 s...

Page 3: ... de rendre le récepteur à l utilisateur effectuer les vérifications suivantes 1 Inspecter tous les faisceaux de câbles pour s assurer que les fils ne soient pas pincés ou qu un outil ne soit pas placé entre le châssis et les autres pièces métalliques du récepteur 2 Inspecter tous les dispositifs de protection comme les boutons de commande non métalliques les isolants le dos du coffret les couvercl...

Page 4: ...Rear 2 5 W Speakers Size Front 1 3 16 1 37 64 in 3 4 cm 2 pcs Rear φ65 mm 1 pcs Voice coil impedance Front 32 ohm Voice coil impedance Rear 6 ohm Antenna input impedance 75 ohm unbalanced Tuning ranges VHF Channels 2 thru 13 UHF Channels 14 thru 69 CATV Channels 1 thru 125 EIA Channel Plan U S A Weight 8 2 lbs 3 7 kg w o accessories Accessories R C Batteries Antenna cable AC adapter AC cord Operat...

Page 5: ...DEO AUDIO R AUDIO L VIDEO S VIDEO COMPONENT Antena terminal Head phone Power input DC 12V AV IN 2 OUT AV IN 1 POWER TV VIDEO CH VOL VOL CH 8 9 0 00 DISPLAY LCDTV 1 1 2 3 4 5 6 7 MENU MUTE FLASHBACK MENU POWER TV VIDEO CHANNEL SELECT CH Selects next higher channel Selects next lower channel FLASHBACK VOL Returns to previous channel DISPLAY Press Displays receiving channel for 10 seconds Channel ind...

Page 6: ...D COLOR TELEVISION LC 15A2U ENGLISH IMPRIMÉ AU JAPON TINS 6961CEZZ Printed on post consumer recycled paper Imprimé sur du papier recyclé FRANÇAIS TÉLÉVISION COULEUR À ÉCRAN À CRISTAUX LIQUIDES LCD PRINTED IN JAPAN 0C T2444 A OPERATION MANUAL MODE D EMPLOI QACCD3088CEZZ UBATU0026GEZZ QCNW 5730CEZZ UADP 0212CEZZ RRMCG1559CESA TINS 6961CEZZ ...

Page 7: ... 16 357 0 1 3 4 45 3 1 3 16 30 3 1 16 1 5 6 5 32 156 4 4 1 2 114 5 1 31 32 50 0 1 13 16 46 4 1 31 28 26 0 1 2 12 13 11 32 339 2 4 7 8 124 1 4 3 4 121 1 1 32 4 5 2 5 32 66 0 1 8 3 0 7 64 2 75 1 2 12 1 2 12 1 2 12 1 2 12 9 16 14 0 9 16 14 0 9 16 14 0 9 16 14 0 9 16 14 0 9 16 14 0 9 16 14 0 9 16 14 0 9 16 14 0 1 2 13 0 9 16 14 0 1 3 8 35 5 1 8 3 0 ...

Page 8: ...r 7 9 Remove the FFC from the FFC connector 8 on the main PWB 10 Remove the connector 9 from the switch PWB 11 Remove the right and left speaker connectors 0 on the terminal PWB Disassembly of the main PWB 1 Disconnect the flexible cable connectors q and w from the LCD panel 2 Disconnect the cable connectors e and r from the fluorescent lamp 3 Remove the four screws t Disassembly of the terminal P...

Page 9: ...the main power and simultaneously press the inspection process CH key and VOL key to change the mode to the adjustment mode Description The manual adjustment or adjustment through communication with the automatic machine is performed 3 Inspection mode Procedure Holding down the TV VIDEO key and MENU key turn on the power Description In the ordinary menu select VIDEO ADJUST with the CH key and deci...

Page 10: ...ias adjustment 1 Receive a B W channel 1 Adjust COM BIAS to the darkest 2 Go to the adjustment mode screen with VOL and VOL key 3 Select the COM BIAS with The color of COM BIAS must be MENU key yellow 5 Shipping setting list Channel 2ch Air Cable Air Skip Data_CATV All Skip Skip Data_AIR All Skip Volume 20 Picture 30 Tint 0 Color 0 Black Level 0 SHARP 0 RED BLUE 0 GREEN 0 TV Color System N358 AV C...

Page 11: ...he tuner and its peripheral parts No Is input at Pin 1 of IC402 as specified Check the line in question Yes Check IC402 and its peripheral parts Yes No Are Pins 2 and 4 of IC402 at H and L respectively Are Pins 65 and 66 of IC2001 at H and L respectively No VIDEO 1 output Yes No Is input at Pin 1 of IC402 as specified Check the line in question Yes No Are Pins 2 and 4 of IC402 both at L No VIDEO 2...

Page 12: ...e F3701 and F3702 Check S4701 and connection cable Check the secondary side load of T701 Fluorescent lamp Yes No Does F3751 function Yes No Is Pin 34 of IC1201 at H 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 Yes Check the line IC1201 and its peripheral...

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 th...

Page 14: ...14 LC 15A2U 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 15A2U 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: ...LC 15A2U LC 15A2U BLOCK DIAGRAM 16 17 ...

Page 17: ...nindication 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 one therefore there may be a slight difference from yours Resistors Nonindication Carbon film resistor C Solid resistor S Metal o...

Page 18: ...19 LC 15A2U 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 ...

Page 19: ...LC 15A2U LC 15A2U 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 20 21 å AND SHADED COMPONENTS SAFETY RELATED PARTS Ë MAIN Unit 1 2 ...

Page 20: ...LC 15A2U LC 15A2U 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 22 23 å AND SHADED COMPONENTS SAFETY RELATED PARTS Ë MAIN Unit 2 2 ...

Page 21: ...LC 15A2U LC 15A2U 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 24 25 å AND SHADED COMPONENTS SAFETY RELATED PARTS Ë TERMINAL Unit ...

Page 22: ...26 LC 15A2U 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 15A2U 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 15A2U 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 15A2U 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 15A2U 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: ...CANADA Contact SHARP Electronics of Canada Limited Phone 416 890 2100 MARK SPARE PARTS DELIVERY SECTION Ref No Part No Description Code RLCDT0058CEZZ J LCD Module Unit DQ LCD MODULE UNIT å KLMP 0098CEZZ J Lamp Unit BA LAMP UNIT PRINTED WIRING BOARD ASSEMBLIES NOT REPLACEMENT ITEM DUNTKA077FE09 Main PWB Unit DUNTKA146DE01 Terminal PWB Unit DUNTKA147DE01 Switch PWB Unit DUNTKA148DE01 R C PWB Unit Re...

Page 28: ... C733 RC EZ0538CEZZ J 330 16V Electrolytic AE C734 VCKYTV1CF105Z J 1 16V Ceramic AB C735 RC EZ0416CEZZ J 330 6 3V Electrolytic AD C736 RC EZ0416CEZZ J 330 6 3V Electrolytic AD C737 RC EZ1339CEZZ J 220 16V Electrolytic AD C738 RC KZ1025CEZZ J 1 10V Ceramic AB C740 VCEAPF1EN475M J 4 7 25V Electrolytic AC C741 VCKYTV1CF105Z J 1 16V Ceramic AB C746 VCKYCY1EF104Z J 0 1 25V Ceramic AA C747 VCKYTV1HB562K...

Page 29: ...23 VCKYTV1AB105K J 1 10V Ceramic AD C2024 VCKYCY1HB222K J 2200p 50V Ceramic AA RESISTORS R201 VRS CY1JF102J J 1k 1 16W Metal Oxide AA R202 VRS CY1JF103F J 10k 1 16W Metal Oxide AA DUNTKA077FE09 MAIN PWB UNIT Continued C759 VCEAPF0JN107M J 100 6 3V Electrolytic AD C762 RC FZ0174CEZZ J 0 12 100V Ceramic AG C764 VCKYTV1CF105Z J 1 16V Ceramic AB C765 VCKYTV1CF105Z J 1 16V Ceramic AB C801 VCEAPF1CN106M...

Page 30: ...JF102J J 1k 1 16W Metal Oxide AA R910 VRS CY1JF102J J 1k 1 16W Metal Oxide AA R913 VRS CY1JF000J J 0 1 16W Metal Oxide AA R914 VRS CY1JF000J J 0 1 16W Metal Oxide AA DUNTKA077FE09 MAIN PWB UNIT Continued R203 VRS CY1JF102F J 1k 1 16W Metal Oxide AA R204 VRS CY1JF473F J 47k 1 16W Metal Oxide AA R205 VRS CY1JF103J J 10k 1 16W Metal Oxide AA R206 VRS CY1JF103F J 10k 1 16W Metal Oxide AA R207 VRS CY1J...

Page 31: ...RBLN 0006TAZZ J Balun BLN 0006TA AB FB1201 RBLN 0090CEZZ J Balun BLN 0090CE AD FB1202 RBLN 0006TAZZ J Balun BLN 0006TA AB DUNTKA077FE09 MAIN PWB UNIT Continued R915 VRS CY1JF000J J 0 1 16W Metal Oxide AA R916 VRS CY1JF000J J 0 1 16W Metal Oxide AA R917 VRS CY1JF105J J 1M 1 16W Metal Oxide AA R918 VRS CY1JF822F J 8 2k 1 16W Metal Oxide AA R919 VRS CY1JF822F J 8 2k 1 16W Metal Oxide AA R920 VRS CY1J...

Page 32: ...RS CY1JF104J J 100k 1 16W Metal Oxide AA R3435 VRS CY1JF103J J 10k 1 16W Metal Oxide AA R3436 VRS CY1JF102J J 1k 1 16W Metal Oxide AA R3704 VRS CY1JF000J J 0 1 16W Metal Oxide AA MISCELLANEOUS PARTS å FH3701 QFSHD1002CEZZ J Fuse Holder AA å FH3702 QFSHD1002CEZZ 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...

Page 33: ...N0564TAZZ J Plug 5Pin AC SW4002 QSW K0087GEZZ J Switch CH AC SW4003 QSW K0087GEZZ J Switch CH AC SW4004 QSW K0087GEZZ J Switch Menu AC SW4006 QSW K0087GEZZ J Switch TV Video AC SW4007 QSW K0087GEZZ J Switch Vol AC SW4008 QSW K0087GEZZ J Switch Vol AC S4701 QSW S0213CEZZ J Switch AE DUNTKA148DE01 R C PWB UNIT TRANSISTORS Q4106 VSDTC144EE 1 J DTC144EE AA Q4107 VSUMG4 1 J UMG4 AC DIODES D4120 RH EX12...

Page 34: ... J Screw AA 3 11 XBPSF40P04000 J Screw AA 3 12 XESSF30P08000 J Screw AA å 4 KLMP 0098CEZZ J Lamp Unit BA 5 LANGQ9208CEFW J ITO Sheet Angle AE 6 LHLDZ2145CEKZ J Light Guide Sheet Holder AU 7 PGiDM0060CEZZ J Light Guide Sheet AZ 8 PSHEP0207CEZZ J ITO Sheet AX 9 PSHEP0220CEZZ J Wave Sheet AY 10 PSHEP0208CEZZ J Diffusion Sheet AP 11 PSHEP0209CEZZ J Polarising Sheet BG 12 PSHEP0210CEZZ J Reflection She...

Page 35: ... 21 21 30 38 32 36 4 10 13 8 9 11 24 25 5 17 22 23 MAIN Unit SWITCH Unit 18 20 19 1 8 1 7 1 2 1 1 10 1 5 1 12 1 6 1 11 1 6 1 12 37 1 11 1 1 1 3 26 44 1 4 1 9 1 9 1 9 2 3 2 12 2 7 2 14 2 5 2 9 2 1 2 8 2 11 37 43 46 2 37 2 6 29 2 4 38 2 7 2 10 34 39 2 13 2 14 2 15 41 40 47 42 3 3 9 3 11 3 2 35 3 9 3 6 3 3 3 1 3 8 3 5 3 10 3 12 3 7 3 10 3 4 28 TERMINAL Unit R C Unit ...

Page 36: ...EZZ Remote Control RRMCG1559CESA Battery 2 pcs UBATU0026GEZZ SPAKX2903CEZZ Buffer Material SPAKP0798CEZZ Wrapping Paper SSAKA0160CEZZ Operation Manual Polyethylene Bag TiNS 6961CEZZ Operation Manual LHLDW1028GEZZ Cable Clamp SPAKF0473CEZZ Pat SPAKF0405CEZZ Packing Material SPAKX2903CEZZ Buffer Material SPAKC5443CEZZ Packing Case FRONT TLABN0157CEZZ Barcode Label TLABK0001TAZZ No Label å ...

Page 37: ...41 Ref No Part No Description Code Ref No Part No Description Code LC 15A2U M E M O ...

Page 38: ...42 LC 15A2U Ref No Part No Description Code Ref No Part No Description Code M E M O ...

Page 39: ...43 Ref No Part No Description Code Ref No Part No Description Code LC 15A2U ...

Page 40: ...ochigi 329 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 TQ0908 S Jun 2000 Printed in JAPAN NA DS LC 15A2U ...