Sharp LC-15AV6U Service Manual
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Sharp LC-15AV6U 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.
» IMPORTANT SERVICE SAFETY PRECAUTION ......................................................................................... 2
» SPECIFICATIONS ........................................................................................................................................ 5
» OPERATION MANUAL ................................................................................................................................. 6
» DIMENSIONS ............................................................................................................................................... 8
» REMOVING OF MAJOR PARTS .................................................................................................................. 9
» ADJUSTING PROCEDURE OF EACH SECTION ..................................................................................... 12
» PUBLIC MODE SETTING PROCEDURE ..................................................................................................22
» TROUBLESHOOTING TABLE .................................................................................................................... 27
» MAJOR IC INFORMATIONS ...................................................................................................................... 30
» BLOCK DIAGRAM ...................................................................................................................................... 32
» OVERALL WIRING DIAGRAM ................................................................................................................... 34
» DESCRIPTION OF SCHEMATIC DIAGRAM ............................................................................................. 36
ËLED/HP Unit ............................................................................................................................................. 37
ËMAIN Unit ................................................................................................................................................. 38
ËSUB Unit .................................................................................................................................................. 52
» PRINTED WIRING BOARD ASSEMBLIES ................................................................................................ 66
» REPLACEMENT PARTS LIST .................................................................................................................... 80
» PACKING OF THE SET .............................................................................................................................. 91
LCD COLOR TELEVISION
LC-15AV6U
MODEL
CONTENTS
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
LC-15AV6U
N46A5LC15AV6U
Page

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Summary of Contents for Sharp LC-15AV6U

  • Page 1: Table Of Contents

    LC-15AV6U N46A5LC15AV6U LCD COLOR TELEVISION LC-15AV6U MODEL 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. CONTENTS Page »...

  • Page 2: Important Service Safety Precaution

    LC-15AV6U IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be performed only by qualified service technicians who are thor- oughly familiar with all safety checks and the servicing guidelines which follow: WARNING • Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity or measure the AC voltage drop 1.
  • Page 3 LC-15AV6U PRECAUTIONS A PRENDRE LORS DE LA REPARATION Ë La réparation ne peut être effectuée que par un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants. AVERTISSEMENT exposées du coffret et une terre connue comme une conduite électrique ou une prise de terre branchée à...
  • Page 4 LC-15AV6U Precautions for using lead-free solder 1 Employing lead-free solder "All PWBs" of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder.

  • Page 5: Specifications

    +32°F to +104°F (0°C to +40°C) As a part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for product improve- ment without prior notice. The performance specification figures indicated are nominal values of production units. There may be some...

  • Page 6: Operation Manual

    LC-15AV6U...
  • Page 7 LC-15AV6U...

  • Page 8: Dimensions

    LC-15AV6U DIMENSIONS Unit: inch (mm)

  • Page 9: Removing Of Major Parts

    LC-15AV6U REMOVING OF MAJOR PARTS 1. Remove the stand cover fixing screw (1 pc.). 2. Remove the stand fixing screws (4 pcs.). 3. Remove the cabinet B fixing screws (9 pcs.). 4. Remove the cabinet B after opening from the direction of an arrow.
  • Page 10 LC-15AV6U 6. Remove the chassis frame fixing screws (2 pcs.). 7. Remove the 2 lock screws from the main PWB. Detach the chassis frame, together with its terminals, from the main PWB. 8. Remove the 4 lock screws from the sub PWB and the PWB fixing angle. Detach the chassis frame together with its terminals, from the sub PWB.
  • Page 11 LC-15AV6U » Precautions in servicing the side-B (backside) of the main PWB unit 1. Remove the lock screws (2 pcs.) from the main PWB, detach the PWB from the chassis frame, and then turn it over. 2. Connect the service-specific extension cable (QCNW-E540WJQZ) between the main PWB (SC5201) and the sub PWB (P5002).

  • Page 12: Adjusting Procedure Of Each Section

    LC-15AV6U ADJUSTING PROCEDURE OF EACH SECTION The best adjustment is made before shipping. If any position deviation is found or after part replacement is performed, adjust as follows. 1. Preparations (1) Plug the AC power cord directly into a wall outlet.
  • Page 13 LC-15AV6U 3-2. ADC target level adjustment * Using the UP/DOWN keys, enter RGTAR, GGTAR, BGTAR of Service Menu Page 7 * Press CH12 of remote control, enter adjustment situation "A3 A3 A3" * Using the LEFT/RIGHT keys, make the first A3 correspond to RGTAR, the second A3 correspond GGTAR, and the third A3 correspond BGTAR * It is not adjusted usually.
  • Page 14 LC-15AV6U 6-2. TAMP adjustment 1) Receive the standard color bar signal. 2) See if the "Y" reading (maximum) on Adjustment Process Page 2 is within the range in the following table. If not, adjust the "NTSC TAMP" setting on the same page to have the "Y" reading (maximum) within this range.
  • Page 15 LC-15AV6U 7-2. Description of Factory Settings. Setting content/range Initial Value (AV1) (AV2) (COMPONENT1) MENU PICTURE AV MODE STANDARD/DYNAMIC/DYNAMIC(FIXED)/MOVIE/GAME DYNAMIC DYNAMIC DYNAMIC DYNAMIC BACKLIGHT BRIGHT/NORMAL/DARK/VARIABLE VARIABLE (STANDARD) (DYNAMIC) (DYNAMIC(FIXED) (MOVIE) (GAME) 1 (DARK) ~9 (NORMAL)~17 (BRIGHT) CONTRAST 0~60 BRIGHTNESS -30~+30 -30~+30...
  • Page 16 LC-15AV6U 8. Lamp error detection 8-1. Functional description This LCD color television has a function (lamp error detection) to be turned off automatically for safety when the lamp or lamp circuit is abnormal. If the lamp or lamp circuit is abnormal, or some other errors happen, and the lamp error detection is executed, the followings occur.
  • Page 17 LC-15AV6U LIST OF THE ADJUSTMENT PROCESS MODE MENU " For calling the adjustment process mode and keying in this mode, refer back to ADJUSTING PROCEDURE OF " EACH SECTION ADJUSTMENT PROCESS 1st LEVEL ITEM DEFAULT TABLE Response precautions on servicing Initial Value Page No.
  • Page 18 TINT SETTING (COMPOSITE, S VIDEO) NOT USED N358 TV SHRAP V V PICTURE QUALITY SETTING (TV) NOT USED N358 AV SHARP V V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO) NOT USED N358 TV SHRAP H1 H PICTURE QUALITY SETTING 1 (TV) NOT USED...
  • Page 19 COLOR DENSITY SETTING (COMPOSITE, S VIDEO) NOT USED N443 AV TINT TINT SETTING (COMPOSITE, S VIDEO) NOT USED N443 AV SHARP V V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO) NOT USED N443 AV SHARP H1 H PICTURE QUALITY SETTING 1 (COMPOSITE, S VIDEO) NOT USED...
  • Page 20 TINT SETTING (TV) NOT USED PAL-N AV TINT TINT SETTING (COMPOSITE, S VIDEO) NOT USED PAL-N TV SHARP V V PICTURE QUALITY SETTING (TV) NOT USED PAL-N AV SHARP V V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO) NOT USED PAL-N TV SHARP H1...
  • Page 21 COLOR DENSITY SETTING (TV) NOT USED 1125I TINT TINT SETTING (TV) NOT USED 1125I SHARP V V PICTURE QUALITY SETTING (TV) NOT USED 1125I SHARP H1 H PICTURE QUALITY SETTING 1 (TV) NOT USED 1125I SHARP H2 H PICTURE QUALITY SETTING 2 (TV) NOT USED...

  • Page 22: Public Mode Setting Procedure

    LC-15AV6U PUBLIC MODE SETTING PROCEDURE 1. How to start Public Mode • There are the following two ways to get the public mode setup screen displayed. 1 In the adjustment process mode, turn on "PUBLIC MODE". Also press the "CH (ù)" and "VOL (+)" keys on the set at once and turn on the power.
  • Page 23 LC-15AV6U 2. How to exit Public Mode There are the following ways to quit the public mode setup screen. • Turn off "PUBLIC MODE" in the adjustment process mode. (✩) ← This way alone is not for quitting the setup screen, but for quitting the mode itself.
  • Page 24 LC-15AV6U 5. On Setting Items * "EZ-SETUP" discussed below indicates "EZ-SETUP after the first power-on". (1) POWER ON FIXED " " " " Selection Selection between Variable Fixed (loop provided) Default – (Variable) " " Explanation Fixed setting, the power-off by the power key of the unit is invalidated and the image is kept being received.
  • Page 25 LC-15AV6U (4) VOLUME FIXED LEVEL Selection Adjustment from 1 to 60 (no loop) Default " " Explanation The sound volume to be fixed by Volume fixed is determined. Limit in Setting None Exception None " " " " Remarks Setting is valid only when...
  • Page 26 LC-15AV6U (8) ON SCREEN DISPLAY " " " " Selection Selection between Limited (loop provide) Default Explanation The following OSD displays are made ineffective. Displays of menu group, channel call, sound volume bar and direct key call " " Limit in Setting ON-timer (Wake-up timer) is cleared and set to •...

  • Page 27: Troubleshooting Table

    LC-15AV6U TROUBLESHOOTING TABLE...
  • Page 28 LC-15AV6U TROUBLESHOOTING TABLE (Continued)
  • Page 29 LC-15AV6U TROUBLESHOOTING TABLE (Continued)

  • Page 30: Major Ic Informations

    LC-15AV6U MAJOR IC INFORMATIONS 1-1. Description of Pins of IC2001 (RH-iXA634WJN1Q or RH-iXA634WJZZQ) Pin No. Pin Name Pin Name Function AD_INT OFL_DUTY PC_H D_FIL PC_V TB1in CSYNC Composite sync signal TB0in IREM1 Remote control signal BYTE BYTE Connected to GND...
  • Page 31 LC-15AV6U Pin No. Pin Name Pin Name Function F_SEL0 HP_MUTE SP_MUTE1 Main speaker mute F_SEL1 HP DET Headphones detect SSTBY Amplifier power control VSH_IN Panel gate driver voltage confirm L MUTE Line out audio mute V_IN/OUT Video input/output select SRESET...

  • Page 32: Block Diagram

    LC-15AV6U BLOCK DIAGRAM LC-15AV6U BLOCK DIAGRAM SUB_PWB IMZ1A To MAIN MICON VIDEO U/V TUNER S-IF SIF AMP I2C(3.3V) S-SW SY-IN SC-IN AUDIO-IN VIDEO-IN AUDIO-IN Y-IN Component Pb-IN Pr-IN SOUND_PROCESSOR (IXB302WJN1) DACA_OUT AUDIO_POWER_AMP HP (Front) IC3301 DACM_OUT Jack (LA4635A(Analog)) Ø (STEREO)
  • Page 33 LC-15AV6U LCD_Panel MAIN_PWB RCRSCA 0 9 7 WJZZ 54MHz RED,GREEN,BLUE CVBS-in 13pin LCD PANEL CVBS-in CK,SP 40pin Y-in 42pin DVP-ML T-CON (IXB150WJ) C-in 31pin D-Y-in 40pin AD/IP/ SCALER, Cb-in D1-D4, OSD 33pin Cr-in 21pin Gradation IC H OUT V OUT...

  • Page 34: Overall Wiring Diagram

    LC-15AV6U OVERALL WIRING DIAGRAM...
  • Page 35 LC-15AV6U...

  • Page 36: Description Of Schematic Diagram

    LC-15AV6U DESCRIPTION OF SCHEMATIC DIAGRAM VOLTAGE MEASUREMENT CONDITION: 1. The voltages at test points are measured on the stable supply voltage of AC 120V. Signals are fed by a color bar signal generator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.

  • Page 37: Schematic Diagram

    LC-15AV6U SCHEMATIC DIAGRAM Ë LED/HP Unit...

  • Page 38: Ëmain Unit

    LC-15AV6U Ë MAIN Unit-1/7 MAIN1 (MICON)
  • Page 39 LC-15AV6U...
  • Page 40 LC-15AV6U Ë MAIN Unit-2/7 MAIN2 (DVP)
  • Page 41 LC-15AV6U...
  • Page 42 LC-15AV6U Ë MAIN Unit-3/7 MAIN3 (DOT_GRAD)
  • Page 43 LC-15AV6U GRAD)
  • Page 44 LC-15AV6U Ë MAIN Unit-4/7 MAIN5 (RSDS)
  • Page 45 LC-15AV6U...
  • Page 46 LC-15AV6U Ë MAIN Unit-5/7 MAIN6 (INTERFACE)
  • Page 47 LC-15AV6U...
  • Page 48 LC-15AV6U Ë MAIN Unit-6/7 MAIN7 (DC/DC)
  • Page 49 LC-15AV6U...
  • Page 50 LC-15AV6U Ë MAIN Unit-7/7 MAIN9 (MSP)
  • Page 51 LC-15AV6U...

  • Page 52: Ësub Unit

    LC-15AV6U Ë SUB Unit-1/7 SUB1 (TUNER/INPUT)
  • Page 53 LC-15AV6U...
  • Page 54 LC-15AV6U Ë SUB Unit-2/7 SUB2 (SOUND)
  • Page 55 LC-15AV6U...
  • Page 56 LC-15AV6U Ë SUB Unit-3/7 SUB3 (AC/DC)
  • Page 57 LC-15AV6U...
  • Page 58 LC-15AV6U Ë SUB Unit-4/7 SUB4 (DCDC CONVERTER)
  • Page 59 LC-15AV6U...
  • Page 60 LC-15AV6U Ë SUB Unit-5/7 SUB5 (CONTROL)
  • Page 61 LC-15AV6U...
  • Page 62 LC-15AV6U Ë SUB Unit-6/7 SUB6 (INTERFACE)
  • Page 63 LC-15AV6U...
  • Page 64 LC-15AV6U Ë SUB Unit-7/7 SUB7...
  • Page 65 LC-15AV6U...

  • Page 66: Printed Wiring Board Assemblies

    LC-15AV6U PRINTED WIRING BOARD ASSEMBLIES LED/HP Unit (Side-A) C4006 D4006 D4005 IC4001 RMC4000 C4001 C4003 D4002 C4000 LED/HP Unit (Chip Parts Side-A) LED/HP Unit (Side-B)
  • Page 67 LC-15AV6U R4000 R4002 D4000 D4001 J4000 R4001 R4003 FB4001 R4010...
  • Page 68 LC-15AV6U MAIN Unit (Side-A)
  • Page 69 LC-15AV6U...
  • Page 70 LC-15AV6U MAIN Unit (Chip Parts Side-A)
  • Page 71 LC-15AV6U...
  • Page 72 LC-15AV6U MAIN Unit (Side-B)
  • Page 73 LC-15AV6U...
  • Page 74 LC-15AV6U MAIN Unit (Chip Parts Side-B)
  • Page 75 LC-15AV6U...
  • Page 76 LC-15AV6U SUB Unit (Wiring Side) (QPWBFD674WJN1)
  • Page 77 LC-15AV6U...
  • Page 78 LC-15AV6U TL4051 TL4052 TL4056 TL4057 TL4054 TL7734 TL4058 TL4055 TL7740 TL5067 D6703 TL4053 TL5069 R4053 R6743 TL7738 TL5109 TL5058 TL5107 Q5001 TL506 TL5122 TL5121 TL5119 TL5118 TL5106 R7710 TL5120 Q7703 TL5108 TL5103 Q7702 TL5105 TL5102 TL5104 R6728 C7732 C6703 TL6715...
  • Page 79 LC-15AV6U R3421 R3417 R4056 R3445 C3416 R5010 L3406 TL5019 Q3405 TL5058 R3538 TL5068 D5001 R3475 C3497 TL5120 C3495 IC3403 C3439 TL5064 D3411 D3412 D5004 TL5029 TL5023 C3437 TL5027 TL5025 TL502 C3431 R3470 R3420 C3432 TL3421 C3433 TL5030 TL5028 TL5026 TL5024...

  • Page 80: Replacement Parts List

    2. NO. DE REF 3. NO. DE PIECE 4. DESCRIPTION in USA: Contact your nearest SHARP Parts Distributor to order. For in CANADA: Contact SHARP Electronics of Canada Limited location of SHARP Parts Distributor, Please call Toll-Free; Phone (416) 890-2100...
  • Page 81 LC-15AV6U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code C754 RC-KZA114WJZZY J 1 25V Ceramic DUNTKD673FMF6 C801 VCKYCZ1AB333KY J 0.033 10V Ceramic MAIN UNIT (Continued) C802 VCKYCZ1AB333KY J 0.033 10V Ceramic C803 VCKYCZ1AB104KY J 0.10 10V Ceramic...
  • Page 82 LC-15AV6U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code C2005 VCKYCY1EF104ZY J 0.10 25V Ceramic DUNTKD673FMF6 C2006 RC-KZA176WJZZY J 10 10V Ceramic MAIN UNIT (Continued) C2008 VCKYCY1EF104ZY J 0.10 25V Ceramic C2009 VCKYCY1EF104ZY J 0.10 25V Ceramic C1202 VCKYCY1HB104KY J 0.10 50V Ceramic...
  • Page 83 LC-15AV6U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code R1714 VRS-CY1JF123FY J 12k 1/16W Metal Oxide AA DUNTKD673FMF6 R1715 VRS-CJ1JF270JY J 27 1/16W Metal Oxide MAIN UNIT (Continued) R1720 VRS-TW2HF361JY J 360 1/2W Metal Oxide...
  • Page 84 LC-15AV6U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code D3401 RH-EX0267TAZZY J Zener Diode, 12V DUNTKD673FMF6 D3402 RH-EX0267TAZZY J Zener Diode, 12V MAIN UNIT (Continued) D3403 RH-EX0267TAZZY J Zener Diode, 12V D3404 RH-EX0267TAZZY J Zener Diode, 12V...
  • Page 85 LC-15AV6U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code C7751 VCKYCY1HB104KY J 0.10 50V Ceramic DUNTKD674FMF6 å C7758 RC-KZ1039CEZZ J 4700P 250V Ceramic SUB UNIT (Continued) å C7759 RC-KZ1039CEZZ J 4700P 250V Ceramic C3311...
  • Page 86 LC-15AV6U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code RJ11 VRS-TQ2BD000JY J 0 1/8W Metal Oxide DUNTKD674FMF6 RJ12 VRS-TQ2BD000JY J 0 1/8W Metal Oxide SUB UNIT (Continued) RJ13 VRS-TQ2BD000JY J 0 1/8W Metal Oxide...
  • Page 87 LC-15AV6U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKD674FMF6 SUB UNIT (Continued) HM7737 LX-GZ3002PEZZ J Screw å CN7701 QSOCAA003WJZZ J Socket, 2pin å F6700 QFS-ZA003WJZZ J Fuse, 1.6A/250V å F6702 QFS-ZA003WJZZ J Fuse, 1.6A/250V å...
  • Page 88 LC-15AV6U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code CABINET AND MECHANICAL PARTS CCABAB338WJ01 J Cabinet A Ass'y Not Available - Cabinet A — HDECQA633WJSA J R/C, LED Cover PSPAHA569WJ00 J Mask Spacer(Side), x2...
  • Page 89 LC-15AV6U CABINET AND MECHANICAL PARTS 4-12 4-2-5 4-2-6 LED/HP PWB 4-2-4 4-2-3 4-2-1 4-2-2 4-11 4-11 4-11 4-11 4-10 4-11 Sub PWB Main PWB...
  • Page 90 LC-15AV6U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code PACKING PARTS SUPPLIED ACCESSORIES (NOT REPLACEMENT ITEM) RRMCGA457WJSA J Remote Control Unit å X2 QACCDA038WJPZ J AC Cord SPAKCC557WJZZ - Packing Case — LHLDWA002WJSA J Cable Clamp, x1...

  • Page 91: Packing Of The Set

    LC-15AV6U PACKING OF THE SET X3, X4...
  • Page 92 LC-15AV6U © COPYRIGHT 2006 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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