free hit counter
Sharp LC-20B8U-S Service Manual
  1. Manuals
  2. Brands
  3. Sharp Manuals
  4. LCD TV
  5. LC-20B8US
  6. Service manual

Sharp LC-20B8U-S Service Manual

Lcd color television
Hide thumbs Also See for LC-20B8U-S:
Table of Contents

Advertisement

Quick Links

See also: Operating 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.
» IMPORTANT SERVICE SAFETY PRECAUTION .........................................................................................2
» SPECIFICATIONS ........................................................................................................................................5
» OPERATION MANUAL .................................................................................................................................6
» DIMENSIONS ...............................................................................................................................................8
» REMOVING OF MAJOR PARTS ..................................................................................................................9
» ADJUSTING PROCEDURE OF EACH SECTION ..................................................................................... 13
» PUBLIC MODE SETTING PROCEDURE ..................................................................................................23
» TROUBLE SHOOTING TABLE ..................................................................................................................29
» MAJOR IC INFORMATION .........................................................................................................................34
» BLOCK DIAGRAM ......................................................................................................................................42
» OVERALL WIRING DIAGRAM ...................................................................................................................44
» DESCRIPTION OF SCHEMATIC DIAGRAM ............................................................................................. 46
ËR/C, LED Unit ..........................................................................................................................................47
ËMAIN Unit .................................................................................................................................................48
ËSUB Unit ..................................................................................................................................................72
ËPOWER Unit ............................................................................................................................................76
ËINVERTER Unit .......................................................................................................................................86
» PRINTED WIRING BOARD ASSEMBLIES ................................................................................................88
» REPLACEMENT PARTS LIST..................................................................................................................109
» PACKING OF THE SET ............................................................................................................................127
SHARP CORPORATION
SERVICE MANUAL
LCD COLOR TELEVISION
LC-20B8U-S
LC-20B9U-S
LC-20B9U-SM
MODELS
CONTENTS
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
LC-20B8U-S
LC-20B9U-S
LC-20B9U-SM
S45H7LC20B9US
Page

Advertisement

Table of Contents
loading

Related Manuals for Sharp LC-20B8U-S

Summary of Contents for Sharp LC-20B8U-S

  • Page 1: Table Of Contents

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM SERVICE MANUAL S45H7LC20B9US LCD COLOR TELEVISION LC-20B8U-S LC-20B9U-S LC-20B9U-SM MODELS 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.

  • Page 2: Important Service Safety Precaution

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM 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: • Use an AC voltmeter having with 5000 ohm per volt, or...
  • Page 3 LC-20B8U-S LC-20B9U-S LC-20B9U-SM PRECAUTIONS A PRENDRE LORS DE LA REPARATION Ë Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants. • Utiliser un voltmètre CA d'une sensibilité d'au moins AVERTISSEMENT 5000Ω/V pour mesurer la chute de tension en travers...
  • Page 4 LC-20B8U-S LC-20B9U-S LC-20B9U-SM 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

    19.4 lbs. (8.8 kg), w/o accessories ËAs a part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for the LCD TV set improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be...

  • Page 6: Operation Manual

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM OPERATION MANUAL...
  • Page 7 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...

  • Page 8: Dimensions

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM DIMENSIONS Unit: inch (mm) (345) (444) (134) (68) (92) (638) (410.5) (242) (100)

  • Page 9: Removing Of Major Parts

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM REMOVING OF MAJOR PARTS 1. Remove the stand cover fixing screw (1 pc.). 2. Remove the stand fixing screws (4 pcs.). 3. Remove the carrying handle fixing screws (4 pcs.). 4. Remove the terminal cover. 5. Remove the terminal screws (4 pcs.).
  • Page 10 LC-20B8U-S LC-20B9U-S LC-20B9U-SM 10. Remove the inverter PWB fixing screws (3 pcs.). 11. Remove the power PWB fixing screws (6 pcs.). 12. Remove the sub PWB fixing screws (4 pcs.). 13. Remove the chassis frame fixing screws (3 pcs.). 14. Remove the R/C, LED PWB fixing screws (2 pcs.).
  • Page 11 LC-20B8U-S LC-20B9U-S LC-20B9U-SM » Precautions in handling the LCD panel 1. Handle it in a clean room. (above 50% humidity) 2. The worker must wear an earth band. 3. Be careful not to drop, vibrate and shock the panel. 4. Use an ionizer. (within 30 cm) 17.
  • Page 12 LC-20B8U-S LC-20B9U-S LC-20B9U-SM »Precautions in servicing the side-B (backside) of the main PWB unit 1. Disconnect the FFC for connection between the main PWB (SC1201) and LCD panel (CN1), and then connect the service-specific extension FFC (flat cable) (QCNW-C458WJQZ). 2. Disconnect the SC2001 side of the lead from between the main PWB (SC2001) and the sub PWB (P3401), and then connect the service-specific extension cord (QCNW-D402WJQZ).

  • Page 13: Adjusting Procedure Of Each Section

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM ADJUSTING PROCEDURE OF EACH SECTION 1. Preparations before adjustment (1) Keep the AC power cable directly plugged in a wall outlet. AC110V~240V [1] Adjustment procedures 1-1. Adjusting the checker Power on (initialization) → Setting the model number and screen size 1-2.
  • Page 14 LC-20B8U-S LC-20B9U-S LC-20B9U-SM [4] Initialization 4-1. Connect both pins (81) and (82) of IC2001 (microprocessor) to GND, and turn on the power. 4-2. Make sure the model number "A628" is selected. *Note: This setting cannot be changed. 4-3. Make sure "20" (inches) is selected for the screen size. *Note: This setting cannot be changed.
  • Page 15 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Reference (Onscreen display of adjustment process menu page 2) 12 13 14 15 16 17 18 19 20 21 24 25 26 Y Data (White 75%) 5-4. White balance adjustment 1) Adjustment procedure (Call the AV input mode with INPUT3 or INPUT4.) Adjust the RGB CUTOFF2 setting for the 40% white level, and the RGB-GAIN setting for the white 80% level.
  • Page 16 LC-20B8U-S LC-20B9U-S LC-20B9U-SM 6-2. Intial value of factory settings Setting ranges Initial values (TV) (INPUT1) (INPUT2) (INPUT3) (INPUT4) MENU PICTURE AV MODE STANDARD/DYNAMIC/DYNAMIC(FIXED)/MOVIE/GAME DYNAMIC DYNAMIC DYNAMIC DYNAMIC DYNAMIC (Except PC) (PC) ON/OFF BACKLIGHT BRIGHT/NORMAL/DARK/VARIABLE VARIABLE VARIABLE (STANDARD) (DYNAMIC) (DYNAMIC (FIXED))
  • Page 17 LC-20B8U-S LC-20B9U-S LC-20B9U-SM 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 DEFAULT CHART OF ADJUSTMENT PROCESS 1ST HIERARCHICAL ITEMS Initial Response precautions on servicing Page No.
  • Page 18 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Initial Response precautions on servicing Page No. Item Function Value (Do not change other items than designated.) PC AD ADJUSTMENT REFER TO METHOD OF ADJUSTMENT. AUTO GAIN2 AD9883 GAIN AUTO ADJUSTMENT OFF/RUN AUTO OFFSET2 AD9883 OFFSET AUTO ADJUSTMENT OFF/RUN REFER TO METHOD OF ADJUSTMENT.
  • Page 19 N358 TINT SETTING (TV) NOT USED N358 AV TINT N358 TINT SETTING (COMPOSITE, S VIDEO) NOT USED N358 TV SHARP V N358 V PICTURE QUALITY SETTING (TV) NOT USED N358 AV SHARP V N358 V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO)
  • Page 20 PAL60 AV TINT PAL60 TINT SETTING (COMPOSITE, S VIDEO) NOT USED PAL60 AV SHARP V PAL60 V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO) NOT USED PAL60 AV SHARP H1 PAL60 H PICTURE QUALITY SETTING 1 (COMPOSITE, S VIDEO) NOT USED...
  • Page 21 625I COLOR 625I COLOR DENSITY SETTING (TV) NOT USED 625I TINT 625I TINT SETTING (TV) NOT USED 625I SHARP V 625I V PICTURE QUALITY SETTING (TV) NOT USED 625I SHARP H1 625I H PICTURE QUALITY SETTING 1 (TV) NOT USED...
  • Page 22 LC-20B8U-S LC-20B9U-S LC-20B9U-SM DEFAULT CHART OF OTHER ADJUSTMENT PROCESS ITEMS Initial Response precautions on servicing Page No. Item Function Value (Do not change other items than designated.) OTHERS OTHERS1 DAC DATA — DAC-RELATED GENERAL-PURPOSE VARIABLE SETTINGS NOT USED L ERROR WAIT...

  • Page 23: Public Mode Setting Procedure

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM 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 1) Press the "INPUT" and "VOL (+)" keys on the set at once and turn on the power.
  • Page 24 LC-20B8U-S LC-20B9U-S LC-20B9U-SM 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 25 LC-20B8U-S LC-20B9U-S LC-20B9U-SM 5. On Setting Items * "EZ-SETUP" discussed below indicates "EZ-SETUP after the first power-on". (1) MAXIMUM VOLUME Selection Adjustment from 1 to 60 (no loop) Default Explanation Sound volume can not be adjusted higher than the preset value.
  • Page 26 LC-20B8U-S LC-20B9U-S LC-20B9U-SM (3) 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 " " " "...
  • Page 27 LC-20B8U-S LC-20B9U-S LC-20B9U-SM (7) 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 "...
  • Page 28 LC-20B8U-S LC-20B9U-S LC-20B9U-SM (9) INPUT MODE FIXED " " " " Selection Selection between Variable Fixed (loop provide) Default – (Variable) " " Explanation The input mode is fixed at the input source or the channel set at the Input mode start in 9 and other input sources and channels can be made non-selectable.

  • Page 29: Trouble Shooting Table

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM TROUBLE SHOOTING TABLE...
  • Page 30 LC-20B8U-S LC-20B9U-S LC-20B9U-SM TROUBLE SHOOTING TABLE (Continued)
  • Page 31 LC-20B8U-S LC-20B9U-S LC-20B9U-SM TROUBLE SHOOTING TABLE (Continued)
  • Page 32 LC-20B8U-S LC-20B9U-S LC-20B9U-SM TROUBLE SHOOTING TABLE (Continued)
  • Page 33 LC-20B8U-S LC-20B9U-S LC-20B9U-SM TROUBLE SHOOTING TABLE (Continued)

  • Page 34: Major Ic Information

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM MAJOR IC INFORMATION 1. IC2001 (RH-iXA628WJN1Q), (RH-iXA628WJZZQ) 1-1.Pin Connections 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51...
  • Page 35 LC-20B8U-S LC-20B9U-S LC-20B9U-SM 1-2. Pin Functions Pin No. Pin Name Pin Name Function P96/ANEX1/Sout4 P95/ANEX0/CLK4 P94/DA1/TB4in PC-H PC signal HS frequency judgment P93/DA0/TB3in D_FIL Component filter switching DA (No function) P92/TB2in/Sout3 PC-V PC signal VS frequency judgment P91/TB1in/Sin3 CSYNC Composite sync signal...
  • Page 36 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Pin No. Pin Name Pin Name Function P46/CS2 P45/CS1 S_SEL AV selector switch P44/CS0 VSHOUT Panel gate driver voltage control P43/A19 P42/A18 HP MUTE Headphones mute (at "H") P41/A17 SP MUTE1 Main speaker mute P40/A16 P37/A15 HP DET...
  • Page 37 LC-20B8U-S LC-20B9U-S LC-20B9U-SM 2. IC801(RH-iXB170WJZZQ) 2-1. Pin Connections DVDD3.3 1 DVDD3.3 2 PXD24 QBR3 3 PXD25 QBR2 4 PXD26 QBR1 5 PXD27 QBR0 6 VDIN DGND 7 HDIN/FBIN DVDD3.3 8 DVDD3.3 QGR7 9 DGND QGR6 10 VRPD QGR5 11 VROD...
  • Page 38 LC-20B8U-S LC-20B9U-S LC-20B9U-SM 2-2. Pin Functions Pin No. Pin name Function Pin status 1 DVDD33 Digital 3.3V power 2 PXD24 Pixel data signal (C) input/output Pull-up when not used 3 PXD25 Pixel data signal (C) input/output Pull-up when not used...
  • Page 39 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Pin No. Pin name Function Pin status 58 MPWEL MPSEL0='1' setting (parallel bus): Write enable lower (negative polarity) Pull-up when not used MPSEL0='0' setting (4-line serial bus) MSD: Serial data input 59 MPOE MPSEL0='1' setting (parallel bus): Output enable (negative polarity)
  • Page 40 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Pin No. Pin name Function Pin status 97 QDRVHD Panel driver signal output D (variable horizontal period) 98 QDRVHE Panel driver signal output E (variable horizontal period) 99 DVDD33 Digital 3.3V power 100 DGND Digital GND 101 DVDDSD Digital 3.3V power...
  • Page 41 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Pin No. Pin name Function Pin status 157 DGND Digital GND 158 QBR0 Panel B signal (R) output 159 QBR1 Panel B signal (R) output 160 QBR2 Panel B signal (R) output 161 QBR3 Panel B signal (R) output 162 DVDD33 Digital 3.3V power...

  • Page 42: Block Diagram

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM BLOCK DIAGRAM SUB UNIT EDID TV-V PC-RGB IN E2PROM TUNER SC401 TU3401 IC401 IC80 SELECT IC3401 V2-IN PC-R,G,B,H,V V2-OUT V2-OUT IN/OUT CONVERTE INPUT4 SWITCH IC8701 Y, PB, PR L2, R2-IN L2/R2-IN/OUT /OUTPUT IC3404 J3403 Q3413 Q3410 L, R-OUT...
  • Page 43 LC-20B8U-S LC-20B9U-S LC-20B9U-SM MA IN UNIT REG. IC805 3.3V VIDEO PANEL 3.3V PROCESSER INV_OFL,INV_OSC IC801 AD-CKO,HSO,VSO RSDS R, G, B (VIDEODECODER) CONVERTER CK,R,G,B TRANSMITTER (3D Y/C) IC8701 IC1201 (I/P) (QS) TV-V,V,SY, SC,Y L_R,REV,LS,GSP1,GSP2,POWER,GCK,U_D REG. 14.6V IC1706 1.8V REG. 3.3V IC802 -6.5V...

  • Page 44: Overall Wiring Diagram

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM OVERALL WIRING DIAGRAM...
  • Page 45 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...

  • Page 46: Description Of Schematic Diagram

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM 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 47: Schematic Diagram Ër/C, Led Unit

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM SCHEMATIC DIAGRAM Ë R/C, LED Unit (LC-20B9U-S) Ë R/C, LED Unit (LC-20B8U-S, LC-20B9U-SM)

  • Page 48: Ëmain Unit

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë MAIN Unit-1/7 (LC-20B9U-S)
  • Page 49 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 50 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë MAIN Unit-1/7 (LC-20B8U-S, LC-20B9U-SM)
  • Page 51 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 52 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë MAIN Unit-2/7 (LC-20B9U-S)
  • Page 53 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 54 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë MAIN Unit-2/7 (LC-20B8U-S, LC-20B9U-SM)
  • Page 55 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 56 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë MAIN Unit-3/7 (LC-20B9U-S)
  • Page 57 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 58 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë MAIN Unit-3/7 (LC-20B8U-S, LC-20B9U-SM)
  • Page 59 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 60 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë MAIN Unit-4/7 (LC-20B9U-S)
  • Page 61 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 62 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë MAIN Unit-4/7 (LC-20B8U-S, LC-20B9U-SM)
  • Page 63 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 64 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë MAIN Unit-5/7 (LC-20B9U-S)
  • Page 65 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 66 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë MAIN Unit-5/7 (LC-20B8U-S, LC-20B9U-SM)
  • Page 67 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 68 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë MAIN Unit-6/7...
  • Page 69 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 70 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë MAIN Unit-7/7...
  • Page 71 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...

  • Page 72: Ësub Unit

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë SUB Unit-1/2...
  • Page 73 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 74 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë SUB Unit-2/2...
  • Page 75 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...

  • Page 76: Ëpower Unit

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë POWER Unit-1/3 (LC-20B9U-S)
  • Page 77 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 78 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë POWER Unit-1/3 (LC-20B8U-S, LC-20B9U-SM)
  • Page 79 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 80 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë POWER Unit-2/3 (LC-20B9U-S)
  • Page 81 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 82 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë POWER Unit-2/3 (LC-20B8U-S, LC-20B9U-SM)
  • Page 83 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 84 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë POWER Unit-3/3...
  • Page 85 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...

  • Page 86: Ëinverter Unit

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ë INVERTER Unit...
  • Page 87 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...

  • Page 88: Printed Wiring Board Assemblies

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM PRINTED WIRING BOARD ASSEMBLIES MAIN Unit (Side-A)
  • Page 89 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 90 LC-20B8U-S LC-20B9U-S LC-20B9U-SM SC2002 SC2003 L801 R808 R2020 R2005 R8720 R8721 R8718 R8719 R2019 R2016 Q2001 R2028 R2038 IC8701 R2040 R2060 R2094 R2062 R2032 R2077 R8707 R2026 R2065 R2013 FB8704 R2067 IC2001 C2012 FB8702 R2004 R8726 R2014 C2013 C8715 R2080...
  • Page 91 LC-20B8U-S LC-20B9U-S LC-20B9U-SM SC2002 SC2001 LUG2004 R8719 C858 C855 D403 C801 C849 D410 C848 D402 C847 D409 C806 C846 C807 D401 C811 D408 R8715 C812 IC801 C818 C820 C843 C825 C828 C841 C887 R874 C840 R831 D801 FB806 LUG2001 R873...
  • Page 92 LC-20B8U-S LC-20B9U-S LC-20B9U-SM MAIN Unit (Side-B)
  • Page 93 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 94 LC-20B8U-S LC-20B9U-S LC-20B9U-SM TL2005 TL2028 TL2036 TL2037 TL2087 TL2002 TL2006 TL2049 TL2014 TL2016 TL2008 TL2013 TL2024 TL2026 TL2032 TL2001 TL2003 C401 TL2012 TL2023 TL2011 TL2088 TL2010 TL2009 R2075 TL2048 TL2051 TL2027 R417 C403 TL2035 TL2004 R416 C405 TL2015 TL2050 TL2025...
  • Page 95 LC-20B8U-S LC-20B9U-S LC-20B9U-SM TL2014 TL2016 TL2022 TL2071 TL2031 TL2064 TL2012 TL2062 R2075 TL2018 TL2038 TL2069 TL2068 TL2015 TL2020 TL2030 TL2067 TL2034 TL2065 TL2066 TL2063 TL2070 C8704 C8706 C8703 C8729 C8730 R2099 C8701 C8727 C8737 TL2073 C8726 TL2052 C8738 TL2074 R2030...
  • Page 96 LC-20B8U-S LC-20B9U-S LC-20B9U-SM SUB Unit (Component Side)
  • Page 97 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 98 LC-20B8U-S LC-20B9U-S LC-20B9U-SM J3403 R3485 R348 D3401 D3403 C3420 R3429 R3480 R3405 R3408 D3402 R3415 R3427 Q3402 R3424 D3425 C3402 L3401 R3443 D3426 C3414 R3442 R3448 R3444 C3419 C3424 C3403 R3459 C3401 C3465 R3505 R3491 Q3415 R3517 R3467 C3404 R3476...
  • Page 99 LC-20B8U-S LC-20B9U-S LC-20B9U-SM J3410 J3405 R3426 R3402 D3424 R3499 R3484 R3495 R3498 R3496 R3403 R3478 R3479 R3430 R3494 R3429 R3416 R3435 R3421 R3434 D3410 C3408 D3423 C3407 D3409 D3408 R3415 C3426 C3417 R3419 R3493 Q3402 C3405 R3413 D3411 R3424 D3415...
  • Page 100 LC-20B8U-S LC-20B9U-S LC-20B9U-SM POWER Unit (Component Side)
  • Page 101 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 102 LC-20B8U-S LC-20B9U-S LC-20B9U-SM POWER Unit (Wiring Side)
  • Page 103 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 104 LC-20B8U-S LC-20B9U-S LC-20B9U-SM R7779 R7757 D7737 R7783 R7718 C7039 R7043 R7046 R7715 R7044 C7042 R7050 C7045 C7038 C7758 R7049 C7041 R7039 R7054 R7714 R7053 R7040 C7034 R7041 R7042 C7022 C7051 R7026 R7013 R7019 IC7001 C7015 R7016 C7031 D7310 R7038 C7762...
  • Page 105 LC-20B8U-S LC-20B9U-S LC-20B9U-SM R7707 R7721 R7718 R7713 R7715 R7714 R7772 R7771 R7768 R7773 R7746 R7748 R7749 C7748 R7770 R7765 C7743 R7764 C7749...
  • Page 106 LC-20B8U-S LC-20B9U-S LC-20B9U-SM INVERTER Unit (Component Side) INVERTER Unit (Chip Parts Side)
  • Page 107 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...
  • Page 108 LC-20B8U-S LC-20B9U-S LC-20B9U-SM...

  • Page 109: 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 110 Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKD041FE03 (LC-20B9U-S/SM) C823 VCKYCY1HB104KY J 0.1 Ceramic DUNTKD041FE06 (LC-20B8U-S) C824 VCKYCY1HB104KY J 0.1 Ceramic C825 VCKYCY1HB104KY J 0.1 Ceramic MAIN Unit (Continued) C826 VCKYCY1HB104KY J 0.1 Ceramic Q1707 VSFMMT718//-1Y...
  • Page 111 Description Code Ref. No. Part No. Description Code DUNTKD041FE03 (LC-20B9U-S/SM) C8719 VCKYCY1CB473KY J 0.047 16V Ceramic DUNTKD041FE06 (LC-20B8U-S) C8720 VCKYCY1EF104ZY J 0.1 Ceramic C8721 VCKYCY1EF104ZY J 0.1 Ceramic MAIN Unit (Continued) C8722 VCKYCY1EF104ZY J 0.1 Ceramic C1209 VCKYCY1HB104KY J 0.1 Ceramic C8723 VCKYCY1EF104ZY J 0.1...
  • Page 112 Part No. Description Code Ref. No. Part No. Description Code DUNTKD041FE03 (LC-20B9U-S/SM) R1221 VRS-CH1JF000JY 1/16W Metal Oxide DUNTKD041FE06 (LC-20B8U-S) R1222 VRS-CH1JF000JY 1/16W Metal Oxide R1223 VRS-CH1JF000JY 1/16W Metal Oxide MAIN Unit (Continued) R1224 VRS-CH1JF000JY 1/16W Metal Oxide R851 VRS-CY1JF182FY J 1.8k 1/16W Metal Oxide R1702 VRS-CY1JF272JY J 2.7k 1/16W Metal Oxide...
  • Page 113 Description Code Ref. No. Part No. Description Code DUNTKD041FE03 (LC-20B9U-S/SM) FB803 RBLN-0006TAZZY J Ferrite Bead DUNTKD041FE06 (LC-20B8U-S) FB805 RBLN-0006TAZZY J Ferrite Bead FB806 RBLN-0006TAZZY J Ferrite Bead MAIN Unit (Continued) FB807 RBLN-0210TAZZY J Ferrite Bead R2038 VRS-CH1JF101JY J 100 1/16W Metal Oxide...
  • Page 114 Code Ref. No. Part No. Description Code DUNTKD042DE03 (LC-20B9U-S) DUNTKD042WE03 (LC-20B9U-SM) C3237 VCEASX0JN107MY J 100 6.3V Electrolytic DUNTKD042WE06 (LC-20B8U-S) C3243 VCKYCY1EF104ZY J 0.1 Ceramic C3244 VCEASX1HN335MY J 3.3 Electrolytic SUB Unit C3245 VCKYCY1HB102KY J 1000p 50V Ceramic TUNER C3251 VCKYCY1EF104ZY J 0.1...
  • Page 115 Description Code DUNTKD042DE03 (LC-20B9U-S) R3427 VRS-CY1JF101JY J 100 1/16W Metal Oxide DUNTKD042WE03 (LC-20B9U-SM) R3428 VRS-CY1JF101JY J 100 1/16W Metal Oxide DUNTKD042WE06 (LC-20B8U-S) R3429 VRS-CY1JF104JY J 100k 1/16W Metal Oxide SUB Unit (Continued) R3430 VRS-TQ2BD750JY J 75 1/8W Metal Oxide R3431 VRS-CY1JF101JY...
  • Page 116 Description Code Ref. No. Part No. Description Code DUNTKD042DE03 (LC-20B9U-S) DUNTKD043FE03 (LC-20B9U-S) DUNTKD042WE03 (LC-20B9U-SM) DUNTKD043FM03 (LC-20B9U-SM) DUNTKD042WE06 (LC-20B8U-S) DUNTKD043FM06 (LC-20B8U-S) SUB Unit (Continued) POWER Unit INTEGRATED CIRCUITS R3540 VRS-CY1JF000JY 1/16W Metal Oxide R3545 VRS-CY1JF000JY 1/16W Metal Oxide IC7001 VHiBD9300F+-1Y J BD9300F-FE2...
  • Page 117 Part No. Description Code DUNTKD043FE03 (LC-20B9U-S) C7717 VCQYTA1HM332J+ J 3300p 50V Mylar DUNTKD043FM03 (LC-20B9U-SM) C7721 RC-KZ0103GEZZ J 1000p 250V Ceramic å DUNTKD043FM06 (LC-20B8U-S) C7722 RC-KZ0105GEZZ J 2200p 250V Ceramic å POWER Unit (Continued) C7735 RC-EZA468WJZZ J 2200 Electrolytic (LC-20B9U-S) L7701...
  • Page 118 Part No. Description Code DUNTKD043FE03 (LC-20B9U-S) R7784 VRS-CY1JF271JY J 270 1/16W Metal Oxide DUNTKD043FM03 (LC-20B9U-SM) (LC-20B8U-S,LC-20B9U-SM) DUNTKD043FM06 (LC-20B8U-S) POWER Unit (Continued) SWITCHES R7304 VRS-CY1JF223JY J 22k 1/16W Metal Oxide S4202 QSW-PA011WJZZ J MAIN POWER R7305 VRS-CY1JF104JY J 100k 1/16W Metal Oxide SW4202 QSW-K0003AJZZ+ J CH(Channel)(Ù)
  • Page 119 Part No. Description Code Ref. No. Part No. Description Code DUNTKD043FE03 (LC-20B9U-S) DUNTKD044DE03 (LC-20B9U-S) DUNTKD043FM03 (LC-20B9U-SM) DUNTKD044WE03 (LC-20B9U-SM) DUNTKD043FM06 (LC-20B8U-S) DUNTKD044WE06 (LC-20B8U-S) POWER Unit (Continued) R/C, LED Unit INTEGRATED CIRCUITS HM7711 LX-GZ3001PEZZ J Screw (LC-20B8U-S,LC-20B9U-SM) IC4001 VHiLM70CiMM-1Y J LM70CIMMX-3 HM7712 XG-BM20-30000...

  • Page 120: Inverter Unit

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ref. No. Part No. Description Code Ref. No. Part No. Description Code RUNTKA134WJZZ C6715 9EX1194723222 J 4700p 50V Ceramic C6716 9EX1131802353 J 18p Ceramic INVERTER Unit C6721 9EX1131026354 J 1000 Electrolytic C6722 9EX1191043219 J 0.1 Ceramic INTEGRATED CIRCUITS C6723 9EX1191533222 J 0.015 50V...
  • Page 121 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ref. No. Part No. Description Code Ref. No. Part No. Description Code RUNTKA134WJZZ R6794 9EX1230003206 1/4W Carbon R6795 9EX1230003208 1/10W Carbon INVERTER Unit (Continued) R6796 9EX1230003208 1/10W Carbon R6797 9EX1230003208 1/10W Carbon R6798 9EX1230003208 1/10W Carbon R6713 9EX1232002F01...

  • Page 122: Cabinet And Mechanical Parts

    J Diffusion Sheet PSHEPA208WJZZ J Prism Sheet (V) XBPS726P05J00 J Screw, x3 GCOVAA659WJKB J Bass-Conne Cover GCOVAB082WJKA J Stand Cover (LC-20B8U-S) AK GCOVAB082WJKB J Stand Cover (LC-20B9U-SM) AK GCOVAB202WJKA J Terminal Cover LCHSMA193WJKA X Chassis Frame HiNDPB274WJSA X Model Label (LC-20B9U-SM)
  • Page 123 LC-20B8U-S LC-20B9U-S LC-20B9U-SM CABINET AND MECHANICAL PARTS (LC-20B8U-S,LC-20B9U-SM) 4-2-4 4-2-5 4-2-8 R/C, LED 4-2-8 4-2-5 4-2-8 4-2-11 4-2-7 4-2-1 4-2-6 4-2-3 4-2-9 4-2-10 4-2-2 2-16 2-13 2-15 2-11 2-14 2-12 2-10 2-14 Sub PWB Power PWB Inverter PWB Main PWB...
  • Page 124 LC-20B8U-S LC-20B9U-S LC-20B9U-SM Ref. No. Part No. Description Code Ref. No. Part No. Description Code CABINET AND MECHANICAL PARTS Not Available – Serial No. Label — LANGTA184WJFW J Reinforcement Angle (LC-20B9U-S) QCNW-D403WJQZ J Connecting Cord LHLDW1046CEZZ J Wire Holder, x1 CCABAA890WJ01 J Cabinet A Ass’y...
  • Page 125 LC-20B8U-S LC-20B9U-S LC-20B9U-SM CABINET AND MECHANICAL PARTS (LC-20B9U-S) 1-12 1-11 1-12 1-11 4-2-4 4-2-5 4-2-8 R/C, LED 4-2-5 4-2-8 4-2-8 4-2-11 4-2-7 4-2-1 1-10 4-2-6 4-2-3 4-2-9 4-2-10 4-10 4-2-2 2-16 2-13 2-15 2-11 2-14 2-12 2-10 2-14 Sub PWB...

  • Page 126: Packing Parts

    (NOT REPLACEMENT ITEM) LC-20B8U-S,LC-20B9U-SM LHLDWA002WJSA J Cable Clamp, x1 (LC-20B8U-S) SPAKCB904WJZZ – Packing Case(LC-20B9U-SM) — LHLDWA002WJSB J Cable Clamp, x1 SPAKCB905WJZZ – Packing Case(LC-20B8U-S) — (LC-20B9U-S,LC-20B9U-SM) SPAKFA791WJZZ – Packing Material — QACCDA038WJPZ J AC Cord å (Accessories) QCNWGA050WJPZ J RGB Cable SPAKFA793WJZZ –...

  • Page 127: Packing Of The Set

    LC-20B8U-S LC-20B9U-S LC-20B9U-SM PACKING OF THE SET...
  • Page 128 LC-20B8U-S LC-20B9U-S LC-20B9U-SM COPYRIGHT © 2005 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.

This manual is also suitable for:

Lc-20b9u-sLc-20b9u-sm

Table of Contents