Sharp LC-15A2M Service Manual
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Sharp LC-15A2M Service Manual

Sharp LC-15A2M Service Manual

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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.
» SPECIFICATIONS .............................................. 3
» OPERATION MANUAL ....................................... 4
» REMOVING OF MAJOR PARTS ........................ 6
EACH SECTION ................................................. 8
» TROUBLE SHOOTING TABLE ......................... 10
» CHASSIS LAYOUT ........................................... 14
» BLOCK DIAGRAM ............................................ 16
» SCHEMATIC DIAGRAM ................................... 18
The component parts of this model are partially
different depending on their suffix symbols. Before
servicing the units, be sure to check the suffix
symbol on the model label that is applied on the
back of the unit.
SERVICE MANUAL
LCD COLOUR TELEVISION
MODEL
CONTENTS
Page
» PARTS LIST
» PACKING OF THE SET .................................... 37
Example of suffix symbol:
LCD COLOUR TV SERIAL NO.
MODEL LC-15A2M
12V
2.2A, 27W
SHARP CORPORATION
1
LC-15A2M
Ë ELECTRICAL PARTS ................................... 28
MAIN UNIT ................................................... 28
TERMINAL UNIT .......................................... 33
OPERATION UNIT ........................................ 34
R/C RECEIVER UNIT ................................... 34
Ë SUPPLIED ACCESSORIES ......................... 36
Ë PACKING PARTS .......................................... 36
X
SHARP CORPORATION
N1
Suffix "X" for Australlia
LC-15A2M
S31Q9LC-15A2M
Page
x x x x x x x x x
MADE IN JAPAN

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Summary of Contents for Sharp LC-15A2M

  • Page 1: Table Of Contents

    LCD COLOUR TV SERIAL NO. x x x x x x x x x symbol on the model label that is applied on the back of the unit. MODEL LC-15A2M SHARP CORPORATION 2.2A, 27W MADE IN JAPAN Suffix "X" for Australlia...

  • Page 2: Important Service Safety Precaution

    LC-15A2M 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...

  • Page 3: Specifications

    LC-15A2M Specifications Power Input .................... DC 12V (Receiver) AC 110-240V (AC Adapter) Power Consumption .............. 27 W (Connected to DC 12V) LCD Panel Size ....................15" TFT LCD Number of Pixels ................921,600 pixels (VGA) Audio Amplifier ............ (Front) 0.6 W + 0.6 W (at 10% distortion) (Rear) 2.5 W...

  • Page 4: Operation Manual

    LC-15A2M Operation Manual Main unit (front view) Main unit (rear view) Rear control panel 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. Power input (DC 12 V)
  • Page 5 LC-15A2M Dimensions 45.3 359.0 30.3 357.0 307.4 ø 205.0 339.2 66.0 35.5 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 13.0 14.0 Units: mm...

  • Page 6: Removing Of Major Parts

    LC-15A2M REMOVING OF MAJOR PARTS 1. Insert your finger into the center of the terminal cover <<Disassembly of the Main Unit>> 1. Disconnect the flexible cable connectors q and and pull it toward you to detach the terminal cover. w from the LCD panel.
  • Page 7 LC-15A2M » Caution for handling the LCD panel <<Disassembly of LCD Panel>> 1. Work in a clean room. (Humidity: 50% or more) 1. Remove the six LCD unit fixing screws. 2. A worker must wear arm bands. 2. Remove the shield case.

  • Page 8: Adjusting Procedure Of Each Section

    LC-15A2M 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. Preparation for Adjustments (1)Use the exclusive-use AC adapter or stable DC power supply.
  • Page 9 Skip Data ............................Off Volume ..............................20 Contrast .............................. 30 Tint ..............................0 Colour ..............................0 Black Level ............................0 SHARP ..............................0 RED-BLUE ............................0 GREEN ............................... 0 TV Colour System ..........................Auto AV Colour System ..........................Auto Language ............................English Blue Screen (Back) ..........................

  • Page 10: Trouble Shooting Table

    LC-15A2M TROUBLE SHOOTING TABLE...
  • Page 11 LC-15A2M TROUBLE SHOOTING TABLE (Continued)
  • Page 12 LC-15A2M TROUBLE SHOOTING TABLE (Continued)

  • Page 13: Description Of Schematic Diagram

    LC-15A2M 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.

  • Page 14: Chassis Layout

    LC-15A2M CHASSIS LAYOUT MAIN Unit (Side-A) MAIN Unit (Side-B)
  • Page 15 LC-15A2M TERMINAL Unit OPERATION Unit R/C RECEIVER Unit...

  • Page 16: Block Diagram

    LC-15A2M BLOCK DIAGRAM...
  • Page 17 LC-15A2M Ë MAIN Unit -1/2...
  • Page 18 LC-15A2M Ë MAIN Unit -2/2...
  • Page 19 LC-15A2M Ë TERMINAL Unit...
  • Page 20 LC-15A2M Ë OPERATION and R/C RECEIVER Unit OPERATION R/C RECEIVER...

  • Page 21: Printed Wiring Board Assemblies

    LC-15A2M PRINTED WIRING BOARD ASSEMBLIES R/C Receiver Unit (Component Side) Terminal Unit Operation Unit (Component Side) (Component Side)

  • Page 22: Main Unit

    LC-15A2M Main Unit (Side-A)
  • Page 23 LC-15A2M Main Unit (Side-B)
  • Page 24 LC-15A2M Ref. No. Part No. Description Code Ref. No. Part No. Description Code PARTS LIST IC1202 VHiPD485505-2 J UPD485505G-25 IC2001 RH-iX3479CEZZ J I.C. IC2002 VHiPST529DM-1 J PST529DMT PARTS REPLACEMENT IC2003 VHiTC4W66F/-1 J TC4W66F Replacement parts which have these special safety characteristics...
  • Page 25 LC-15A2M Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKA077FE08 C734 VCKYTV1CF105Z J 1.0 Ceramic C735 RC-EZ0416CEZZ J 330 6.3V Electrolytic MAIN UNIT (Continued) C736 RC-EZ0416CEZZ J 330 6.3V Electrolytic C737 RC-EZ1339CEZZ J 220 Electrolytic L1202 VP-1M470J5R4N J Peaking 47µH...
  • Page 26 LC-15A2M Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKA077FE08 C2010 VCKYCY1EF104Z J 0.1 Ceramic C2016 VCKYCY1EF104Z J 0.1 Ceramic MAIN UNIT (Continued) C2017 VCKYCY1EF104Z J 0.1 Ceramic C2018 VCCCCY1HH101J J 100p Ceramic C927 VCCCCY1HH560J J 56p...
  • Page 27 LC-15A2M Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKA077FE08 R832 VRS-CY1JF102J J 1.0k 1/16W Metal Oxide R833 VRS-CY1JF102J J 1.0k 1/16W Metal Oxide MAIN UNIT (Continued) R834 VRS-CY1JF102J J 1.0k 1/16W Metal Oxide R852 VRS-CY1JF000J...
  • Page 28 LC-15A2M Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKA077FE08 MISCELLANEOUS PARTS FB702 RBLN-0051TAZZ J Ferrite Bead MAIN UNIT (Continued) FB703 RBLN-0051TAZZ J Ferrite Bead FB704 RBLN-0051TAZZ J Ferrite Bead R1203 VRS-CA1JF220J J 22 1/16W Metal Oxide...

  • Page 29: Terminal Unit

    LC-15A2M Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTK0136DE02 R3302 VRS-CY1JF102J J 1.0k 1/16W Metal Oxide R3303 VRS-CY1JF104J J 100k 1/16W Metal Oxide TERMINAL UNIT R3304 VRS-CY1JF102J J 1.0k 1/16W Metal Oxide R3305 VRS-TQ2BD750J J 75...

  • Page 30: Operation Unit

    J Zener Diode GCOVA1857CESA J LED Cover D4018 RH-EX1283CEZZ J Zener Diode GCOVA1900CESA J R/C Cover D4019 RH-EX1283CEZZ J Zener Diode HBDGB3154CESA J Badge, SHARP LANGS0130CEFW J Angle for Speaker, x4 CAPACITORS PSLDC3104CEZZ J Shield C4001 VCCCCY1HH471J J 470p Ceramic PSLDC3105CEZZ...

  • Page 31: Ë Cabinet And Mechanical Parts

    LC-15A2M CABNET AND MECHANICAL PARTS 2-15 3-10 2-12 TERMINAL Unit 2-14 3-12 OPERATION Unit 2-12 MAIN Unit 2-13 2-11 3-11 1-11 1-12 1-12 1-11 1-10 R/C RECEIVER Unit...

  • Page 32: Ë Supplied Accessories

    LC-15A2M Ref. No. Part No. Description Code Ref. No. Part No. Description Code CABINET PARTS LOCATION SUPPLIED ACCESSORIES (Continued) LHLDW1028GEZZ J Cable Clamp, x2 LHLDW1173CEZZ J Wire Holder, x2 å QACCL0020TAZZ J AC Cord LX-BZ3431CEFN J Screw, x4 RRMCG1558CESA J Infrared R/C Unit...

  • Page 33: Packing Of The Set

    LC-15A2M PACKING OF THE SET AC Cord AC Adapter Infrared R/C Unit Batteries (2 pcs.) Buffer Material Wrapping Paper Packing Material (Rear) Operation Manual Cable Clamp Packing Material (Front) Buffer Material No. Card Packing Case Barcode Label...
  • Page 34 LC-15A2M COPYRIGHT © 2001 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.

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