Service manual

ManualsBrandsSharp ManualsFlat Panel TVLC-10A2

LC-10A2H-S/A

LC-10A2M-S/A

SERVICE MANUAL

 !

In the interests of user-safety (Required by safety regulations in some countries) the set should be restored

to its original condition and only parts identical to those specified should be used.

MODELS



LC-10A2H-S/A

LC-10A2M-S/A

LCD COLOUR TELEVISION

 !"#$

 !"#$%=E !"#$%&'($)*F=  !"#$%&'()*+,-./0123456

 !"#$

S40Y9LC-10A2H

CONTENTS

Page 

===

»  !"#$%&'( KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 15

»  ! KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 16

»  !" KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 17

»  !"#$ KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 19

»  !"#$% KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 22

»  !"# KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 25

»  !"#$% KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 28

»  !" KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 30

»  !"#$% KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 31

»  !" KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 32

»  !"#$ KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 40

» 

 ! KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK

 !" KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 44

 ! KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 49

 ! KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 50

iba  KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 50

 ! KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 50

 !"#$%&'( KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK

 KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK

 ! KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK

»  ! KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK 53

IMPORTANT SERVICE SAFETY PRECAUTION......

» SPECIFICATIONS ............................................. 3

» OPERATION MANUAL ...................................... 4

» REMOVING OF MAJOR PARTS ....................... 6

» ADJUSTING PROCEDURE OF

EACH SECTION ................................................ 9

» TROUBLE SHOOTING TABLE ........................ 12

» CHASSIS LAYOUT .......................................... 28

» BLOCK DIAGRAM ........................................... 30

» DESCRIPTION OF SCHEMATIC DIAGRAM .. 31

» SCHEMATIC DIAGRAM .................................. 32

» PRINTED WIRING BOARD ASSEMBLIES ..... 40

» PARTS LIST

ELECTRICAL PARTS .................................. 44

MAIN UNIT .................................................. 44

TERMINAL UNIT ......................................... 49

OPERATION UNIT....................................... 50

LED UNIT .................................................... 50

RELAY UNIT ................................................ 50

CABINET AND MECHANICAL PARTS ....... 50

ACCESSORIES PARTS .............................. 52

PACKING PARTS......................................... 52

» PACKING OF THE SET ................................... 53

SHARP CORPORATION

Summary of content (38 pages)

PAGE 1
LC-10A2H-S/A LC-10A2M-S/A SERVICE MANUAL ! S40Y9LC-10A2H LCD COLOUR TELEVISION MODELS !"#$ LC-10A2H-S/A LC-10A2M-S/A In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used. !"#$%= E !"#$ !"#$%&'($)*F= !"#$%&'()*+,- ./0123456 === CONTENTS Page » » » » » » » » » » » » » IMPORTANT SERVICE SAFETY PRECAUTION ...... 2 SPECIFICATIONS .
PAGE 2
LC-10A2H-S/A LC-10A2M-S/A IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be perfomed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow: • Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity or measure the AC voltage drop across the resisor.
PAGE 3
LC-10A2H-S/A LC-10A2M-S/A Specifications LCD panel ............................................................................................... 10.4" TFT LCD Number or pixels ............................................................................. 921,600 pixels VGA Video colour systems ....................................................................... PAL/NTSC/SECAM TV FUNCTION TV Standard (CCIR) .................................................................................
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LC-10A2H-S/A LC-10A2M-S/A Operation Manual Main unit (front view) Main unit (rear view) Remote control 4
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LC-10A2H-S/A LC-10A2M-S/A Dimensions Front View Side View Rear View (Units: mm) 5
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LC-10A2H-S/A LC-10A2M-S/A REMOVING OF MAJOR PARTS 1. 2. 3. 4. Remove the five lock screws 1 off the cabinet B. Push on the six hooks 2 of the cabinet B and open it slightly. Disconnect all the connectors 3 from the terminal and operation PWBs. Detach the cabinet B. Disconnect all the connectors 4 from the main PWB.
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LC-10A2H-S/A LC-10A2M-S/A 5. 6. 7. 8. 9. Remove the four lock screws 5 off the main PWB. Remove the two lock screws 6 off the remote control PWB. Remove the two lock screws 7 off the terminal PWB. Remove the two lock screws 8 off the operation PWB. Remove the two lock screws 9 off the flexible shield, and detach he relay PWB.
PAGE 8
LC-10A2H-S/A LC-10A2M-S/A 10.Remove the lock screw 0 off the LC display unit. 11.Undo the seven hooks q to release the unit frame. 12.Detach the fluorescent lamp.
PAGE 9
LC-10A2H-S/A LC-10A2M-S/A ADJUSTING PROCEDURE OF EACH SECTION The best adjustment is made before shipping. If any position deviation is found or after part replace is performed, adjust as follows. 1. Preparations for Adjustments Use the specific AC adaptor or a regulated DC power supply. AC adaptor : UADP-0209CEZZ (Type 10 non-polar LC10A2H/M) DC power supply : 12 V, 3.2 A 2. Calling the adjustment process mode The mode can be called up in the following two ways.
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LC-10A2H-S/A LC-10A2M-S/A 4. Initialization Here is the procedure of initializing the EEPROM and making model number and size settings. 4-1. Get Pins (81) and (82) of the IC2001 (microprocessor) grounded and turn on the power. 4-2. Select a model number (A1, A2H, A2U). For Models LC-10A2H and LC-10A2M, select A2H. 4-3. Select a size in inches (10, 12, 15, 20). For Models LC-10A2H and LC-10A2M, select 10. 4-4. Get Pins (81) and (82) of the IC2001 (microprocessor) back to normal. 5. Adjustments 5-1.
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LC-10A2H-S/A LC-10A2M-S/A 7.
PAGE 12
No TV and VIDEO 1 output No 12 Check LCD panel voltage and waveform. Yes Is input at Pin NO (73) of IC802 as specified? Check IC1201 and its peripheral parts. Are inputs and outputs of IC402 as specified? Are inputs and outputs No of IC1201 as specified? Check IC802 and its peripheral parts. Yes No Yes Are inputs and outputs of IC802 as specified? Check IC802, AV1 line and their peripheral parts. Check IC402 and its peripheral parts.
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No No No VIDEO color Check J3701, its peripheral parts and connection cable. Yes Is any of T701’s primary side, No Q701, Q710 and S4701 short-circuited? Yes Disconnect F3701 and F3702. Is the load side short-circuited? Check all the settings on the microprocessor’s adjust process menu. No TV color No color Check the secondary-side load of T701.
PAGE 14
No sound from headphone 14 Check the speakers and their peripheral parts. Yes Are inputs at Pins (5) and (8) as well as outputs at Pins (2) and (11), all of IC301, as specified? Yes Are inputs and outputs of IC303 as specified? Yes Are outputs at Pins (1) and (7) of IC903 as specified? Yes Is Pin (53) of IC2001 at “L”? No No No No Check the line in question, IC303 and its peripheral parts. Check IC303 and its peripheral parts. Check IC901, IC903 and their peripheral parts.
PAGE 15
LC-10A2H-S/A LC-10A2M-S/A CHASSIS LAYOUT !"#$% H MAIN Unit (Side-A) G F E MAIN Unit (Side-A) D C B A 1 1 2 2 3 4 3 5 64 28 7 5 8 9 6 10
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LC-10A2H-S/A LC-10A2M-S/A H TERMINAL Unit G F E OPERATION Unit (Side-A) D OPERATION Unit (Side-B) C LED Unit B A 10 111 12 2 13 143 15 29 4 16 17 5 18 6 19
PAGE 17
LC-10A2H-S/A LC-10A2M-S/A BLOCK DIAGRAM !" H G F E D C B A 1 1 2 2 3 4 3 5 64 30 7 5 8 9 6 10
PAGE 18
LC-10A2H-S/A LC-10A2M-S/A DESCRIPTION OF SCHEMATIC DIAGRAM VOLTAGE MEASUREMENT CONDITION: 1. When the exclusive-use AC adapter is used, the colour bar signal of colour bar generator for service is input to get the normal screen. When the audio is minimized, the voltage value is measured with the 20 kΩ/V tester. NK !"#$%&'()I= !" #$%&'() !"#$%&!"'()!"*+,I= !"#OM !"#$"%& WAVEFORM MEASUREMENT CONDITION: 1.
PAGE 19
LC-10A2H-S/A LC-10A2M-S/A Ë MAIN Unit -1/2 !"JNLO H G F E D C B A 1 2 3 32 4 5 6 7 8 9 10 11 33 12
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LC-10A2H-S/A LC-10A2M-S/A Ë MAIN Unit -2/2 !"JOLO H G F E D C B A 1 2 3 34 4 5 6 7 8 9 10 11 35 12
PAGE 21
LC-10A2H-S/A LC-10A2M-S/A Ë TERMINAL Unit !"# H G F E D C B A 1 2 3 36 4 5 6 7 8 9 10 11 37 12
PAGE 22
LC-10A2H-S/A LC-10A2M-S/A Ë REAY Unit ! H G F E D C B A 1 1 2 2 3 4 3 5 64 38 7 5 8 9 6 10
PAGE 23
LC-10A2H-S/A LC-10A2M-S/A Ë OPERATION and LED Unit iba ! H OPERATION UNIT G F E LED UNIT D C B A 10 111 12 2 13 143 15 39 4 16 17 5 18 6 19
PAGE 24
LC-10A2H-S/A LC-10A2M-S/A PRINTED WIRING BOARD ASSEMBLIES !"#$ H G F E D C B Main Unit (Side-A) !" !"#^ A 1 2 3 4 40 5 6
PAGE 25
LC-10A2H-S/A LC-10A2M-S/A H G F E D C B Main Unit (Side-B) !" !"#_ A 1 2 3 4 41 5 6
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LC-10A2H-S/A LC-10A2M-S/A H Relay Unit (Component Side) LED Unit (Component Side) iba !"#$%&'() *+, !"#$%&' ()* G F E D C B A Operation Unit (Side-A) 1 !"#$%&'() 2 Terminal Unit (Side-A) *+, 3 4 42 !"#$%&'() 5 *+, 6
PAGE 27
LC-10A2H-S/A LC-10A2M-S/A H G F E D C B Operation Unit (Side-B) Terminal Unit (Side-B) !"#$%&'_ !"#$%&'_ A 1 2 3 4 43 5 6
PAGE 28
LC-10A2H-S/A LC-10A2M-S/A Ref. No. Part No. ★ Description Code Ref. No. Part No. PARTS REPLACEMENT Replacement parts which have these special safety characteristics identified in this manual: electrical components having such features are identified by "å" in the Replacement Parts Lists.
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LC-10A2H-S/A LC-10A2M-S/A Ref. No. ★ Part No. Description Code Ref. No.
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LC-10A2H-S/A LC-10A2M-S/A Ref. No. Part No. ★ Description Code Ref. No.
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LC-10A2H-S/A LC-10A2M-S/A Ref. No. Part No. ★ Description Code Ref. No. Part No.
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LC-10A2H-S/A LC-10A2M-S/A Ref. No. Part No.
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LC-10A2H-S/A LC-10A2M-S/A Ref. No. ★ Part No.
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LC-10A2H-S/A LC-10A2M-S/A Ref. No. ★ Part No. Description Code Ref. No.
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LC-10A2H-S/A LC-10A2M-S/A Part No. AND ★ Description Code Ref. No. Part No. CABNET MECHANICAL PARTS ★ Ref. No.
PAGE 36
LC-10A2H-S/A LC-10A2M-S/A Ref. No. Part No. ★ Description Code Ref. No. CABINET PARTS LOCATION 17 18 19 20 21 22 23 24 25 26 27 28 TLABM4197CEZZ QCNW-5538CEZZ QCNW-5279CEZZ QCNW-5539CEZZ QCNW-5299CEZZ QCNW-5285CEZZ LANGQ9207CEFW PSPAP0051CEZZ QCNW-4941CEZZ PSPAG2001CEZZ XBBSD20P05000 LHLDW1173CEZZ J Model Label (LC-10A2-MA) J Connecting Cord J Connecting Cord J Connecting Cord J Connecting Cord J Connecting Cord J Fixing Metal J Spacer J Connecting Cord J Spacer J Screw J Wire Holder Part No.
PAGE 37
LC-10A2H-S/A LC-10A2M-S/A PACKING OF THE SET Operation Manual ! Antenna Cable Batteries (2 pcs.) AV Cable for Mini-jack AC Adaptor Infrared R/C Unit AC Cord Wall Mount Parts Buffer Material Wrapping Paper Packing Material No.
PAGE 38
LC-10A2H-S/A LC-10A2M-S/A COPYRIGHT © 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. TQ0875-S Apr. 2000 Printed in Japan SHARP CORPORATION AV Systems Group Quality & Reliability Control Center Yaita, Tochigi 329-2193, Japan NA.