Sharp LC-60H20T Service Manual
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Sharp LC-60H20T Service Manual

Sharp LC-60H20T Service Manual

Led backlight tv
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OUTLINE-MAJOR SERVICE PARTS ... . .......... iii
CHAPTER 1. SPECIFICATIONS
[1]
SPECIFICATIONS ................................. . ....... 1-1
[1]
OPERATION MANUAL .......................... . ....... 2-1
[1]
DIMENSIONS ....................................... . ....... 3-1
[1]
REMOVING MAJOR PARTS ................ . ....... 4-1
[1]
ADJUSTMENT ...................................... . ....... 5-1
[2]
USB CLONE SPECIFICATIONS............ . ....... 5-8
[3]
PUBLIC MODE SETTING......................5-8
[1]
TROUBLESHOOTING TABLE .............. . ....... 6-1
DIAGRAM
[1]
SYSTEM BLOCK DIAGRAM ................ . ....... 7-1
[2]
WIRING DIAGRAM LC-60H20T ............ . ....... 7-2
[3]
WIRING DIARAM LC-70H20T ............... . ....... 7-3
Parts marked with "
" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the
safety and performance of the set.
LCD KIT
SERVICE MANUAL
LED BACKLIGHT TV
MODEL:
CONTENTS
[1]
GRAM ...........................................................8-1
[2]
MAIN UNIT ...................................................8-2
Parts Guide
No. SZ4M67LC-60/70H20T
LC-60H20T
LC-70H20T
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
1st Addition

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Summary of Contents for Sharp LC-60H20T

  • Page 1: Table Of Contents

    CHAPTER 7. SYSTEM BLOCK DIAGRAM /WIRING DIAGRAM SYSTEM BLOCK DIAGRAM ......7-1 WIRING DIAGRAM LC-60H20T ....7-2 WIRING DIARAM LC-70H20T ....... 7-3 Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.

  • Page 2: Safety Precaution

    LC-60H20T/LC-70H20T SAFETY PRECAUTION IMPORTANT SERVICE 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 All checks must be repeated with the AC cord plug connection reversed.

  • Page 3: Precautions For Using Lead-Free Solder

    LC-60H20T/LC-70H20T PRECAUTIONS FOR USING LEAD-FREE SOL- 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 oflead-free solder.

  • Page 4: Outline-Major Service Parts

    LC-60H20T/LC-70H20T OUTLINE-MAJOR SERVICE PARTS PWB UNIT ription LC-60H20T MAIN Unit DKEYMG542FM01 DUNTKG505FM01 COCORO EYE DUNTKG504FM01 NET BOARD RUNTKB285WJQZ POWER Unit DUNTKG477FMG1 T-CON Unit LC-70H20T MAIN Unit DKEYMG542FM02 DUNTKG505FM01 COCORO EYE DUNTKG504FM01 NET BOARD RUNTKB286WJQZ POWER Unit DUNTKG477FMG2 T-CON Unit OTHER UNIT...

  • Page 5: Specifications

    The HDMI 5 and 電腦 (PC) terminals can both use the same audio input terminal. • As a part of policy of continuous improvement, SHARP reserves the right to make design and specifi cation changes for product improvement without prior notice. The performance specifi cation fi gures indicated are nominal values of production units.

  • Page 6: Chapter 2. Operation Manual

    LC-60H20T/LC-70H20T CHAPTER 2. OPERATION MANUAL [1] OPERATION MANUAL Attaching the stand • Before attaching (or detaching) the stand, unplug the AC cord from the AC outlet. • Before performing work spread cushioning over the base area to lay the TV on. This will prevent it from being damaged.
  • Page 7 “SMART POWER CONTROL” IS PRIORITY. Power indicator will display Green even if other setting also turn On at the same time. If the “Assist Light mode” is turned On, Power indicator will display weak White during standby mode. • The illustrations used throughout this manual are based on LC-60H20T. 2 – 2...
  • Page 8 “Audio select” menu. • The illustrations in this operation manual are for explanation purposes and may vary slightly from the actual operations. • The illustrations used throughout this manual are based on LC-60H20T. 2 – 3...

  • Page 9: Part Names And Functions

    LC-60H20T/LC-70H20T Part names and functions Remote control unit a / b / c / d (Cursor) Select a desired item on the setting screen. 確定 (ENTER) Execute a command. 10 色彩調整 ( 靜止 ) [(COLOUR ADJ.) (FREEZE)] Freeze a motion picture on the screen and adjust the colour tone of the still image.

  • Page 10: Chapter 3. Dimensions Dimensions

    LC-60H20T/LC-70H20T CHAPTER 3. DIMENSIONS [1] DIMENSIONS Dimensional drawings Unit : mm LC-60H20T 1355 1332.4 1563 LC-70H20T 1540.6 3 – 1...

  • Page 11: Chapter 4. Removing Major Parts

    LC-60H20T/LC-70H20T CHAPTER 4. REMOVING MAJOR PARTS [1] REMOVING MAJOR PARTS [1] REMOVING OF MAJOR PARTS REMOVING OF THE STAND UNIT AND REAR CABINET 1.Remove the 4 lock screw [1] and detech stand unit [2]. 2.Remove 1 lock screw [3] and detech the AC cord cover [4].
  • Page 12 LC-60H20T/LC-70H20T LC-70LE660X 4 – 2...
  • Page 13 LC-60H20T/LC-70H20T [2] Removing of connectors & PWB 1.Disconnect the following connectors from Main Unit. (SP,RA,KM,LWwires) 2.Disconnect the following connectors from the POWER Unit.(PD,PL,LED wire) 3.Disconnect the following connectors from the LCD CONTROL Unit .(T-Con FFC wayer) 4.Remove 4screws [1]Main Unit ,remove 6 screws [2] Power unit & remove 4 screws [3]...

  • Page 14: Chapter 5. Adjustment Adjustment

    2) Insert USB device to the USB terminal at the LCD TV. (Make sure the latest software is installed in the USB device.) 3) Use below menu procedure to st art upgrading software version : FOR LC-60H20T/LC-70H20T Option System data - Menu...
  • Page 15 LC-60H20T/LC-70H20T LCD TV ADJUSTMENT ITEM 1. VCOM ADJUSTMENT i. Enter service mode key and go to VCOM/TEST PATTERN Page ii. Press “Enter” key (at VCOM) iii. Adjust the flicker effect by pressing “VOL +/-“ of RC key iv. Press “Enter” key after get the best value 2.
  • Page 16 NOT to write multiple data. Also, when data writing location parts is broken, please change PWB board (since the concerned IC is non-exchangeable part). Note: a) MAC Address is from Sharp IT department b) WMDRM Key is from SEM Enginering department 5.
  • Page 17 LC-60H20T/LC-70H20T a) Adjustment Mode Adjustment Mode Press the test key at the test remote control b) Component 15K 50Hz Signal Adjustment (COMP-SD) Setting [Signal] Feed the COMPONENT 15K 50Hz (576i) 100% Full-field COMP 15K 50Hz Colour Bar signal(100% colour saturation) to...
  • Page 18 LC-60H20T/LC-70H20T At the related page, move cursor to [COMP HD ADJ], press Auto Adjustment Test Mode page 5 ENTER. (COMP HD) [OK] appears when finished. d) PC (ANALOG RGB) Signal Adjustment (PC-RGB) Setting [Signal] Feed the XGA 60Hz 100% Checkered pattern signal (100%...
  • Page 19 LC-60H20T/LC-70H20T MGMB**** RB to the reference value of point 1. (18) Adjusted value is writing at [command] MSET0003 (19) Set the G of point Max. to the default value (4080 x G value of point 2 / R2). Set the R,B Max.
  • Page 20 LC-60H20T/LC-70H20T 6. FACTORY SETTING AC power is plug off after shipment setting is done. Caution: Do not plug on again after shipment setting is done. If do, please re-do the shipment setting. Do not off with remote control. ITEM Factory setting AC power off to exit 1.

  • Page 21: Usb Clone Specifications

    LC-60H20T/LC-70H20T [2] USB CLONE SPECIFICATIONS [3] USB CLONE SPECIFICATIONS [2] USB Clone (Smart Loader) 1. Description The Smart Loader is a function implemented in the service software to easily replicate the user settings of one TV into another. These settings include (but not restricted to): picture and audio, turning set-up, language and country selection, PIN, child locked programs etc.

  • Page 22: Public Mode Setting

    LC-60H20T/LC-70H20T [4] PUBLIC MODE SETTING [5] PUBLIC MODE SETTING [3] 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) Press the “INPUT” and “VOL (+)” keys on the set at once and turn on the power.
  • Page 23 LC-60H20T/LC-70H20T 4. Public Mode Menu The guidance is not displayed onscreen. Setup procedure • To move the cursor up and down, use the cursor UP/DOWN key (remote controller) and CH ( ) key (remote controller and set). • To change the settings, use the cursor RIGHT/LEFT key (remote controller) and VOL (+)/(‒) key (remote controller and set).
  • Page 24 LC-60H20T/LC-70H20T 3. VOLUME FIXED Selection Selection between Variable ,''Fixed'' and ''AC/RC CTRL'' ( loop provided ). Default Variable Explanation Sound volume is fixed and made invariable. Limit in setting • The sound volume for the ON-timer (Wake up timer) is fixed also without display of menu. Besides, the setting is made impossible.
  • Page 25 LC-60H20T/LC-70H20T 8. OSD DISPLAY Selection Selection between Yes , No (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 • Set time of the OFF-timer (SLEEP TIMER) is cleared.
  • Page 26 LC-60H20T/LC-70H20T 12. PRESET CHANNEL PLAN Selection Selection between "ON" and "OFF" Default Explanation [ON] : Display preset channel plan when power on. [OFF]: Not display preset channel plan. (Default setting) Remark When hotel mode is ON and PRESET CHANNEL PLAN is [ON], press power ON (Panel or R/C key), it displays preset channel plan on the screen.

  • Page 27: Chapter 6. Troubleshooting Table Troubleshooting Table

    LC-60H20T/LC-70H20T CHAPTER 6. TROUBLESHOOTING TABLE [1] TROUBLESHOOTING TABLE [2] TROUBLESHOOTING TABLE [1] TROUBLESHOOTING TABLE No power (front LED failure to light up) or no startup (front LED failure to turn from red to blue ) Are the wire harnesses and other cables properly connected in...
  • Page 28 LC-60H20T/LC-70H20T With [RF] signal input No video onscreen (1) No video in the UHF/VHF reception Is there IF output from the tuner pin( 8 ) , ( 9 ) of TU1102 as specified? Check TU1102 and its peripheral circuits. Is there IF input at pin W1 & W2 of IC3301 ? r i c &...
  • Page 29 LC-60H20T/LC-70H20T With <Component> signal input No video onscreen (3) No external input video onscreen <INPUT 6> Is INPUT 6 selected on the input select menu screen? Select INPUT 6 on the input select menu screen to pick up the right input signal.
  • Page 30 LC-60H20T/LC-70H20T No audio heard (1) No sound in the UHF/VHF reception. Check TU1102 and its peripheral circuits. Is the IF output from the tuner pin(8) & (9) of TU1102 as specified ? Is there the 12C signal input a t pins (W4 ), (W5) of IC3301? Check IC3301 and its peripheral circuits.
  • Page 31 LC-60H20T/LC-70H20T No audio heard (2) No external audio heard <INPUT 7> Is there the L-ch audio signal input from pin (7) ofinput terminal J502 to pin (U4) of IC3301? Is there the R-ch audio signal input from pin (5) ofinput terminal J502 to pin (V5 ) of I C3301? <INPUT 6>...
  • Page 32 LC-60H20T/LC-70H20T No audio heard (3) No HDMI sound heard (*INPUT1/INPUT2/INPUT3 is digital audio ) Refer to "(HDMI1/HDMI2/HDMI3/HDMI4/HDMI5) video onescreen (HDMI)" HDMI1/HDMI2/HDMI3/HDMI4/HDMI5 > < t i r Are waveforms input in to the pin( C4 , D 4 / C 3 , D 3 / W 7 , V 8 ) Check peripheral circuits IC3301.
  • Page 33 LC-60H20T/LC-70H20T No audio heard (4) No sound from the HDMI sound input terminal. (INPUT 1 analog audio) Is there the L-ch audio signal input from pin (2) of external input terminal J506 (HDMI AUDIO IN) to pin (U3) of IC3301?

  • Page 34: Chapter 7. System Block Diagram /Wiring

    LC-60H20T/LC-70H20T CHAPTER 7. SYSTEM BLOCK DIA- GRAM /WIRING DIAGRAM [1] SYSTEM BLOCK DIAGRAM WISTERIA SYSTEM BLOCK 7 – 1...

  • Page 35: Wiring Diagram Lc-60H20T

    LC-60H20T/LC-70H20T [2] WIRING DIAGRAM LC-60H20T 7 – 2...

  • Page 36: Wiring Diaram Lc-70H20T

    LC-60H20T/LC-70H20T [3] WIRING DIARAM LC-70H20T 7 – 3...

  • Page 37: Chapter 8. Description Of Schematic Dia

    LC-60H20T/LC-70H20T CHAPTER 8. DESCRIPTION SCHEMATIC DIAGRAM [1] DESCRIPTION OF SCHEMATIC DIA- GRAM 8 – 1...

  • Page 38: Main Unit

    LC-60H20T/LC-70H20T [2] MAIN UNIT 8 – 2...
  • Page 39 LC-60H20T/LC-70H20T 8 – 3...
  • Page 40 LC-60H20T/LC-70H20T 8 – 4...
  • Page 41 LC-60H20T/LC-70H20T 8 – 5...
  • Page 42 LC-60H20T/LC-70H20T 8 – 6...
  • Page 43 LC-60H20T/LC-70H20T 8 – 7...
  • Page 44 LC-60H20T/LC-70H20T 8 – 8...
  • Page 45 LC-60H20T/LC-70H20T 8 – 9...
  • Page 46 LC-60H20T/LC-70H20T 8 – 10...
  • Page 47 LC-60H20T/LC-70H20T 8 – 11...
  • Page 48 LC-60H20T/LC-70H20T 8 – 12...
  • Page 49 LC-60H20T/LC-70H20T 8 – 13...
  • Page 50 LC-60H20T/LC-70H20T 8 – 14...
  • Page 51 LC-60H20T/LC-70H20T 8 – 15...
  • Page 52 LC-60H20T/LC-70H20T 8 – 16...
  • Page 53 PARTS GUIDE No. SZ4M67LC-60/70H20T LED BACKLIGHT TV LC-60H20T MODEL: LC-70H20T CONTENTS PRINTED WIRING BOARD LCD PANEL ( LC-60H20T ) ASSEMBLIES LCD PANEL ( LC-70H20T ) LCD PANEL SUPPLIED ACCESSORIES CABINET AND MECHANICAL PARTS ( LC-60H20T ) PACKING PARTS ( NOT REPLACE-...
  • Page 54 LCD PANEL MODULE UNIT ( LC-70H20T ) RUNTKB270WJZZ LED BAR ( LC-60H20T ) LED BAR ( LC-70H20T ) RUNTKB273WJZZ T-CON UNIT DUNTKG477FMG1 [3] CABINET AND MECHANICAL PARTS ( LC-60H20T ) CANGKE266WJ01 VESA ANGLE ASSEMBLY, x4 LANGKE266WJFW VESA ANGLE VESA SHAFT NSFTZA460WJFN...
  • Page 55 LC-60H20T/LC-70H20T PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [4] CABINET AND MECHANICAL PARTS ( LC-70H20T ) SCREW FOR POWER LX-BZA408WJF7 FOR SP LX-EZA085WJF7 12*12*t0.7 PSPAHC681WJ00 45*35*t0.7 PSPAHC804WJ00 TCON CPU COOLER PSPAZC854WJKZ PTPEZA359WJZZ SHADING TAPE-T SHADING TAPE-B PTPEZA360WJZZ PC SHEET(BTN)
  • Page 56 OPC LENS HDECQB890WJ4A RC LENS HDECQB905WJ4A FROMT DECO (HB) HDECQB896WJ4A SCREW x3 XEBS830P10000 SCREW x2 XEBS830P06000 [6] LCD PANEL ( LC-60H20T ) KS B/L CHASSIS CCHSMA728WJ22 B/L CHASSIS LCHSMA728WJ2W KS P-CHA TOP CHLDZC197WJ21 P-CHASSIS TOP LHLDZC197WJ2Z KS P-CHA BTM CHLDZC198WJ21...
  • Page 57 LC-60H20T/LC-70H20T [7] LCD PANEL ( LC-70H20T ) KS B/L CHASSIS CCHSMA729WJ22 B/L CHASSIS LCHSMA729WJ2W KS P-CHASSIS TOP L CHLDZC186WJ21 LHLDZC186WJ2Z P-CHASSIS TOP L CHLDZC187WJ21 KS P-CHA TOP R P-CHASSIS TOP R LHLDZC187WJ2Z KS P-CHA L CHLDZC190WJ02 P-CHASSIS L LHLDZC190WJKZ KS P-CHA R...

  • Page 58: Supplied Accessories

    LC-60H20T/LC-70H20T PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [8] SUPPLIED ACCESSORIES Supplied accessories “AAA” size battery ( g 2) Remote control unit Other accessories X6 • Operation manual X7 • Warranty certifi cate Stand unit PRICE PART PARTS CODE...
  • Page 59 LC-60H20T/LC-70H20T [9] PACKING PARTS ( NOT REPLACEMENT ITEM ) [S12] [S3] [S9] [X3] [X6] [X1] [X7] [X2] [X5] [S10] [S5] [S11] [X4] [S13] [X4] FRONT [S1] [S4] [S6] [S2] [S8]...
  • Page 60 HOSO PP SPAKPB733WJ4Z SPAKXE362WJZZ TOP AD-L BTM AD-L SPAKXE366WJZZ BTM AD-C SPAKXE367WJZZ BTM AD-R SPAKXE368WJZZ SIDE AD-L ( LC-60H20T ) SPAKXE364WJZZ SIDE AD-L ( LC-70H20T ) SPAKXE369WJZZ SIDE AD-R (LC-60H20T) SPAKXE365WJZZ SIDE AD-R (LC-70H20T) SPAKXE370WJZZ TOP AD-R SPAKXE378WJZZ TOP AD-C (LC-60H20T )
  • Page 61 LC-60H20T/LC-70H20T [10] EXPLODE VIEW PRICE PART PARTS CODE RANK MARK RANK...
  • Page 62 LC-60H20T/LC-70H20T...
  • Page 63 EndPage © COPYRIGHT 2014 BY SHARP CORPORATION COPYRIGHT XXXX 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, ©...

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