Sharp LC-26D43U Service Manual

Hide thumbs Also See for LC-26D43U:

Operation manual (60 pages)

Specifications (2 pages)

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

Table of Contents

Quick Links

Summary of Contents for Sharp LC-26D43U

Page 1: Table Of Contents
LC-26D43U N17A8LC26D43U LCD COLOR TELEVISION LC-26D43U 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-26D43U SAFETY PRECAUTION IMPORTANT SERVICE SAFETY PRECAUTION Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow: WARNING • Use an AC voltmeter having with 5000 ohm per volt, or higher, sen- sitivity or measure the AC voltage drop across the resistor.
Page 3 LC-26D43U PRECAUTIONS A PRENDRE LORS DE LA REPARATION Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants. AVERTISSEMENT A l'aide de deux fils à pinces, brancher une résistance de 1.5 k 10 watts en parallèle avec un condensateur de 0.15µF en série...
Page 4 LC-26D43U Precautions for using lead-free solder Employing lead-free solder • “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
The dimensional drawings are shown on the inside back cover. ・ As part of policy of continuous improvement, SHARP reserves the right to make design and speci cation changes for product improvement without prior notice. The performance speci cation gures indicated are nominal values of production units.
Page 6: Operation Manual
LC-26D43U OPERATION MANUAL Part names TV (Front) Remote control sensor MOBILE AUDIO jack OPC sensor* OPC indicator** POWER indicator** *OPC: Optical Picture Control **See page 16 for TV status indicator. TV (Top/Rear) Channel buttons INPUT button ∨ ∧ MENU button...
Page 7: Part Names
LC-26D43U Part names 1 POWER: Switch the TV power on or enters standby. Remote control unit － 9: Set the channel. 3 » (DOT): 4 VOL － : Set the volume. 5 DISPLAY: Display the channel and the clock information .
Page 8 LC-26D43U Basic adjustment sitings Menu items for TV/INPUT 1/2/3 Menu items for HDMI/PC-IN Backlight Backlight Contrast Brightness Contrast Color Brightness Tint Color Sharpness Tint Advanced Sharpness Color Temp. Advanced Color Temp. Black I/P Setting Black Film Mode I/P Setting 3D-Y/C...
Page 9: Dimensions
LC-26D43U DIMENSIONS (662) 1 /16 (500) (564.8) 15 /64 (500) 11 /16 (101) (100) (83) 17 /64 (243)
Page 10: Removing Of Major Parts
LC-26D43U REMOVING OF MAJOR PARTS 1. Remove the USB Cover. 2. Remove the Bass Cone Cover. 3. Remove the 4 lock screws and detach the Stand Base Ass’y. 4. Remove the 9 lock screws,2 lock screws,4 lock screws and detach the Rear Cabinet.
Page 11 LC-26D43U 5. Remove the 4 lock screws and detach the Vesa Angle. 6. Remove the 2 lock screws and detach the Stand Angle-B. 7. Remove the 2 lock screws and detach the Stand Cover. 8.Remove the 2 lock screws and detach the LCD ANG -DOWN.
Page 12 LC-26D43U 10.Disconnect all the connectors from all the PWBs. 11.Remove the 2 screws and detach the Top Cover Ass’y. 12.Remove the 2 lock screws from the Top Cover Ass’y and detach the KEY Unit. Top Cover Ass'y KEY Unit...
Page 13 LC-26D43U 13. Remove the Speaker - L and R. 14. Remove the 2 lock screws and detach the LED Unit. 15. Remove the 5 lock screws and detach the Tray Chassis. Speaker-L Speaker-R...
Page 14 LC-26D43U 16.Remove the lock screws,2 lock rivets and detach the Radiator. 17.Remove the earth plate. 18.Remove the 2 lock screws and detach the Chassis Frame. 19.Remove the 6 lock screws and detach the Main PWB Unit. 20.Remove the 8 lock screws and detach the Power Unit .
Page 15 LC-26D43U 21.Remove the 4 lock screws,4 lock screws and detach the 4 Chassis ANG. 22.Remove the 2 lock screws and detach the Chassis Angle Center.
Page 16: Adjusting Procedure Of Each Section
LC-26D43U ADJUSTING PROCEDURE OF EACH SECTION [1] ADJUSTMENT PROCEDURET The adjustment values are set to the optimum conditions at the factory before shipping. If a value should become improper or an adjustment is required due to part replacement,make an adjustment according to the following procedure.
Page 17 LC-26D43U 6. Even a single failure in the process will trigger the upgrade failure screen as shown below.the word "NG" channges to red for the item failed. NOTE: In the event of a failure, repeat the upgrading process.If the process repeatedly fails. it is likely that the hardware is troubled.
Page 18 2. Signal adjustment (1) Checking the Device Before starting the adjustment,make sure the adjustment tool and signal generator are set for Sharp LCD US. Checking the signal generator level adjustment (Set to th standard level) Composite signal 0.714 Vp-p ±...
Page 19 LC-26D43U (2) . Process mode Adjustment item Adjustment conditions Adjustment procedure Process mode Enter the process adjustment mode using the process adjustment remote controller (3 ) Composite N358 signal/tuner adjustment Adjustment conditions Adjustment procedure Adjustment item Setting N358 signal Feed the N358 color bar signal(75%)to VIDEO 1 Input US-10ch Feed the RF signal (by use of US-10CH) to TUNER.
Page 20 LC-26D43U (6) Analog RGB signal adjustment Adjustment procedure Adjustment item Adjustment conditions Setting Analog RGB signal: XGA Feed the XGA100% color bar signal to analog RGB input. (1024x768) 60HZ SYNC: HV separate 100% Color saturation 100% color bar 100% white...
Page 21 RGB setting/4 at each point. ) WBI50800 MG5G**** [Adjustment value] MG5B**** As per the "standard set" submitted by Engineering Department MG5R**** [LC-26D43U] Teaching Set. [Adjustment reference] Instrument:[Minolta CA-210] Engineering instrument Point 4 WBI40480 Level Reference Adj. spec Ins.
Page 22 LC-26D43U 4. Key writing 1. EDID writing (Main PWB :QPWBXE001WJZZ,Analog RGB/GDMI input terminal) Adjustment procedure Adjustment item Adjustment conditions Analog RGB File Version checking 1) Using the checker,write the EDID data for HDMI to EDID writing IC1505 that is mounted on the main PWB.
Page 23 LC-26D43U Set the light level to MAX with the light control command (SBSL0016 for 45). SBSL0016 Setting is complete. Multi point adjustment mode setting MSET0001 Multi point adjustment mode is set. Initialize adjustment values. MSET0004 Initialization is done. Adjustment gradation setting (point 6 = 232 gradation adjustment*)
Page 24 LC-26D43U Start measurement Adjust RB to the target xy values. MG5RXXXX MG5BXXXX * XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). * G is fixed. * The default adjustment value of RGB is the parameter value Repeat until RGB of the LEV5 command multiplied by 2.
Page 25 LC-26D43U Start measurement Adjust RB to the target xy values. MG3RXXXX MG3BXXXX * XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). * G is fixed. * The default adjustment value of RGB is the parameter value of Repeat until RGB the LEV3 command multiplied by 2.
Page 26 LC-26D43U Start measurement Adjust RB to the target xy values. MG1RXXXX MG1BXXXX *XXXX indicates the adjusted values between 0000 and 1023 (4 digit decimal number with zero fill). * G is Fixed. * The default adjustment value of RGB is the parameter value of Repeat until RGB the LEV1 command multiplied by 2.
Page 27: Troubleshooting Table
LC-26D43U TROUBLESHOOTING TABLE No power supply (Front LED does not light up) and no power-up even is turned on (Front LED light up to blue) Is the AC cord connected? Connect the AC cord and turn on the power. Are the harness and FFC connected Connect the hamess and FFC properly.
Page 28 LC-26D43U TROUBLESHOOTING TABLE (Continued) No audio output during UHF/VHF reception Is SIF output from the tuner (TU1101_Pin15) normal? Check the tuner and peripheral circuits. Is input signal fed to pin21 (SOUNDIF 1)of IC1401(SIF Check the filter circuits (Q1102-3) and peripheral...
Page 29 LC-26D43U TROUBLESHOOTING TABLE (Continued) No audio output from external input <<HDMI>>[INPUT-4/INPUT5 (Digital audio mode)] Is digital audio signal (DTV_SPDIF) fed from pin E12 of IC8101 to pin 4 of IC1404? <<HDMI>>[INPUT-5(Analog audio mode)] Is L-ch audio signal fed from pin 3 of input terminal J1501 to pin 57 of IC1404? Is R-ch audio signal fed from pin 2 of input terminal J1501 to pin 58 of IC1404? PCIPUT<<INPUT-6>>...
Page 30 LC-26D43U TROUBLESHOOTING TABLE (Continued) <Component video signal input> No video output (1) No video output from extermal input <<INPUT-1>> Select INPUT-1 and the input signal on the input switching menu screen. When INPUT-1 cannot be selected since the characters Is INPUT-1 selected on the input switching menu screen? INPUT-1 on the menu screen are gray.
Page 31 LC-26D43U TROUBLESHOOTING TABLE (Continued) <Component video signal/S-video signal input> No video output (2) No video output from extermal input <<INPUT-3>> Select INPUT-3 and the input signal on the input switching menu screen. When INPUT-3 cannot be selected since the characters Is INPUT-2 selected on the input switching menu screen? INPUT-2 on the menu.
Page 32 LC-26D43U TROUBLESHOOTING TABLE (Continued) No video output during ANALOG broadcasting reception Is video signal sent to output terminal pin 13 of tuner Check or repiace the tuner's peripheral circuits. (TU1101)? Is control signal for level adjustment fed from pin 1 of...
Page 33 LC-26D43U TROUBLESHOOTING TABLE (Continued) <Component video signal input> No video output (3) No video output from external input<<INPUT-1>> Select INPUT-1 and the input signal on the input switching Is INPUT-1 selected on the input switching menu screen? menu screen. When INPUT-1 cannot be selected since the characters INPUT-1 on the menu screen are gray.
Page 34 LC-26D43U TROUBLESHOOTING TABLE (Continued) No video output from HDMI input (INPUT4) Are signals fed from HDMI (SC1501) connector to input Is IC1501(E PROM) accessed with 12C when connectiong terminals H_RX0±(pins 70 and 71),H_RX1±(pins 73 and HDMI device and is DDC_12C_CLOCK/DATA data read 74),H_RX2±(pins 76 and 77) and H_RXC±(pins 67 and...
Page 35 LC-26D43U TROUBLESHOOTING TABLE (Continued) No video output from HDMI input (INPUT5) Are signals fed from HDMI (SC1502) connector to input Is IC1502 (E PROM) accessed with 12C when connecting terminals H_RX0 ± (pins 8 and 9),H_RX1 ± (pins 11 and HDMI device and is DDC_12C_CLOCK/DATA data read 12),H_RX2 ±...
Page 36 LC-26D43U TROUBLESHOOTING TABLE (Continued) No video output from PC input (INPUT6) Analog mode DIGITAL mode Are signal fed from pins 1,2,3(Analog-R/G/B),and 13,14(H IS IC1505(E PROM) accessed 12C when connecting PC Sync/V Sync) of input terminal (SC1503) to pins 11,9,6,2,3 and is DDC_12C_CLOCK/DATA data read out?
Page 37 LC-26D43U TROUBLESHOOTING TABLE (Continued)
Page 38: Major Ic Informations
LC-26D43U MAJOR IC INFORMATIONS 1-1. IC8101 (RH-iXB870WJQZQ) This IC is a system LSI with the following function. A cable,ground wave receiver,NTSC decoder,HDMI receiver,transport processor,MPEG video pocessor,digital andio decoder,analog video processor,graphics processor,MLPS processor, and Peripheral controller. IXB870WJQZ BALLOUT IXB870WJQZ BALLOUT HDMI_D...
Page 39 LC-26D43U --MEMO--...
Page 40: Block Diagram
LC-26D43U BLOCK DIAGRAM...
Page 41 LC-26D43U...
Page 42: Overall Wiring Diagram
LC-26D43U OVERALL WIRING DIAGRAM...
Page 43 LC-26D43U...
Page 44: Description Of Schematic Diagram
LC-26D43U 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 45: Schematic Diagram
LC-26D43U SCHEMATIC DIAGRAM Ë LED Unit...
Page 46: Ëmain Unit
LC-26D43U Ë MAIN Unit-1/20...
Page 47 LC-26D43U...
Page 48 LC-26D43U Ë MAIN Unit-2/20...
Page 49 LC-26D43U...
Page 50 LC-26D43U Ë MAIN Unit-3/20...
Page 51 LC-26D43U...
Page 52 LC-26D43U Ë MAIN Unit-4/20...
Page 53 LC-26D43U...
Page 54 LC-26D43U Ë MAIN Unit-5 /20 I X B 9 8 6 W J N 4...
Page 55 LC-26D43U 8 6 W J N 4...
Page 56 LC-26D43U Ë MAIN Unit-6 /20...
Page 57 LC-26D43U...
Page 58 LC-26D43U Ë MAIN Unit-7 /20...
Page 59 LC-26D43U...
Page 60 LC-26D43U Ë MAIN Unit-8 /20...
Page 61 LC-26D43U...
Page 62 LC-26D43U Ë MAIN Unit-9 /20...
Page 63 LC-26D43U...
Page 64 LC-26D43U Ë MAIN Unit-10 /20...
Page 65 LC-26D43U...
Page 66 LC-26D43U Ë MAIN Unit-11 /20...
Page 67 LC-26D43U...
Page 68 LC-26D43U Ë MAIN Unit-12 /20...
Page 69 LC-26D43U...
Page 70 LC-26D43U Ë MAIN Unit-13/20...
Page 71 LC-26D43U...
Page 72 LC-26D43U Ë MAIN Unit-14 /20...
Page 73 LC-26D43U...
Page 74 LC-26D43U Ë MAIN Unit-15 /20...
Page 75 LC-26D43U...
Page 76 LC-26D43U Ë MAIN Unit-16 /20...
Page 77 LC-26D43U...
Page 78 LC-26D43U Ë MAIN Unit-17 /20...
Page 79 LC-26D43U...
Page 80 LC-26D43U Ë MAIN Unit-18 /20...
Page 81 LC-26D43U...
Page 82 LC-26D43U Ë MAIN Unit-19/20...
Page 83 LC-26D43U...
Page 84 LC-26D43U Ë MAIN Unit-20/20...
Page 85 LC-26D43U...
Page 86: Ëkeyunit
LC-26D43U Ë KEY Unit...
Page 87 LC-26D43U...
Page 88: Printed Wiring Board Assemblies
LC-26D43U PRINTED WIRING BOARD ASSEMBLIES LED Unit (Side-A) LED Unit (Chip Parts Side-A) LED Unit (Side-B)
Page 89 LC-26D43U...
Page 90 LC-26D43U MAIN Unit (Side-A)
Page 91 LC-26D43U...
Page 92 LC-26D43U MAIN Unit (Chip Parts Side-A)
Page 93 LC-26D43U...
Page 94 LC-26D43U MAIN Unit (Side-B)
Page 95 LC-26D43U...
Page 96 LC-26D43U MAIN Unit (Chip Parts Side-B)
Page 97 LC-26D43U...
Page 98: Key Unit
LC-26D43U KEY Unit...
Page 99 LC-26D43U...
Page 100: 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 101 LC-26D43U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code Q9602 VSSP8K2++++-1Y J SP8K2 DUNTKE0001FM04 Q9603 VSRT1N141U/-1Y J RT1N141U MAIN UNIT (Continued) Q9604 VSRT1N141U/-1Y J RT1N141U IC8401 VHIPQ1M505M-1Y J PQ1M505M Q9606 VSRT1N141U/-1Y J RT1N141U IC8451 RH-IXC069WJQZY J IXC069WJQZY...
Page 102 LC-26D43U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code C535 VCKYCY1EF104ZY J 0.10 25V Ceramic DUNTKE001FM04 C536 VCKYCH1CB104KY J 0.10 16V Ceramic MAIN UNIT (Continued) C537 VCKYCH1CB104KY J 0.10 16V Ceramic C538 VCKYCH1CB104KY J 0.10 16V Ceramic...
Page 103 LC-26D43U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code C1543 VCKYCZ1CF104ZY J 0.10 16V Ceramic DUNTKE001FM04 C1544 VCKYCZ1HB102KY J 1000p 50V Ceramic MAIN UNIT (Continued) C1545 VCKYCZ1CF104ZY J 0.10 16V Ceramic C1429 VCCCCZ1HH330JY J 33p 50V Ceramic...
Page 104 LC-26D43U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code C8108 VCKYCY1EB104KY J 0.10 25V Ceramic DUNTKD673FMF4 C8109 VCKYCY1EB104KY J 0.10 25V Ceramic MAIN UNIT (Continued) C8110 VCKYCY1EB104KY J 0.10 25V Ceramic C8111 VCKYCY1EB104KY J 0.10 25V Ceramic C2702 RC-KZA104WJZZY J 0.10 50V Ceramic...
Page 105 LC-26D43U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code C9612 RC-KZA237WJZZY J 10 16V Ceramic DUNTKE001FM04 C9613 RC-KZA237WJZZY J 10 16V Ceramic MAIN UNIT (Continued) C9614 VCKYCZ1HB222KY J 2200p 50V Ceramic C8185 VCKYCZ1AB104KY J 0.10 10V Ceramic C9615 VCKYCY1EB104KY J 0.10 25V Ceramic...
Page 106 LC-26D43U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code R1309 VRS-CJ1JF473JY J 47k 1/16W Metal Oxide AB DUNTKE001FM04 R1310 VRS-CJ1JF473JY J 47k 1/16W Metal Oxide AB MAIN UNIT (Continued) R1311 VRS-CZ1JF220JY J 22 1/16W Metal Oxide...
Page 107 LC-26D43U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code R1574 VRS-TQ2BD561JY J 560 1/8W Metal Oxide DUNTKE001FM04 R1575 VRS-TQ2BD561JY J 560 1/8W Metal Oxide MAIN UNIT (Continued) R1577 VRS-CZ1JF470JY J 47 1/16W Metal Oxide...
Page 108 LC-26D43U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKE001FM04 R3314 VRS-CZ1JF100JY J 10 1/16W Metal Oxide R3316 VRS-CZ1JF100JY J 10 1/16W Metal Oxide MAIN UNIT (Continued) R3317 VRS-CZ1JF100JY J 10 1/16W Metal Oxide...
Page 109 LC-26D43U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKE001FM04 R9018 VRS-CZ1JF272JY J 2.7k 1/16W Metal Oxide AA R9032 VRS-CZ1JF103JY J 10k 1/16W Metal Oxide AA MAIN UNIT (Continued) R9033 VRS-CZ1JF103JY J 10k 1/16W Metal Oxide AA...
Page 110 LC-26D43U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKE001FM04 FB2614 RBLN-A206WJZZY J Ferrite Bead FB2615 RBLN-A206WJZZY J Ferrite Bead MAIN UNIT (Continued) FB2709 RBLN-0064TAZZY J Ferrite Bead R9707 VRS-TQ2BD101JY J 100 1/8W Metal Oxide...
Page 111 LC-26D43U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKE008FM04 LED UNIT INTEGRATED IC101 VHITPS850++-1Y J TPS850 TRANSISTORS Q102 VS2SC3928AR-1Y J 2SC3928AR Q103 VS2SC3928AR-1Y J 2SC3928AR Q104 VS2SC3928AR-1Y J 2SC3928AR Q106 VS2SC3928AR-1Y J 2SC3928AR...
Page 112 Not Available - Front Cab — GCOVAC004WJKA J SP Cover HDECSA016WJSA J Front Decorator HDECQA706WJSA J LED Cover TLABZB376WJZZ J HDTV Label HBDGBA079WJSC J SHARP Badge TLABZA635WJZZ J E-Star Not Available - Front Cover — PSPAHB056WJ00 J Mask L/R x2...
Page 113 LC-26D43U CABINET AND MECHANICAL PARTS Key Unit 1-10 LED Unit 1-11 1-12...
Page 114: Supplied Accessories
LC-26D43U ★ ★ Ref. No. Part No. Description Code Ref. No. Part No. Description Code SUPPLIED ACCESSORIES PACKING PARTS (NOT REPLACEMENT ITEM) RRMCGA549WJSA J Remote Control Unit UBATUA009WJZZ - “AAA” size Battery ,x2 — SSAKA0001SEZZ - Polyethylene Bag — LHLDWA131WJKZ J Cable Clamp...
Page 115: Packing Of The Set
LC-26D43U PACKING OF THE SET...
Page 116 LC-26D43U © COPYRIGHT 2007 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.

Sharp LC-26D43U Service Manual

Quick Links

Related Manuals for Sharp LC-26D43U

Summary of Contents for Sharp LC-26D43U

Table of Contents