Sharp 52LE920UN, 60LE920UN ,

LC-52LE920UN/LC-60LE920UN

INoaudio11) I

IINPUT-1Noaudio, I

[ Is INPUT-1 selected on the input select menu screen? ]

€

I INPUT-2 No audio, I

¢

Is INPUT-2 selected on the input select menu screen? I

_' NO

[ Refer to ": No external input video [INPUT-I]". ]

YES

[ Is the audio output selected for "VARIABLE" on the menu screen? ]

NO

I Refer to" No external input video [INPUT-2]". I

YES

Is the audio output selected for "VARIABLE" on the menu screen? I

_' NO

Set the audio "FIXED".output to

YES

Does the audio signal come from pins (4) (L) and (3) (P,)of input

terminal (J507) to pins (U29)(L) and (U28) (P,) of IC3302 (CPU)?

_' NO

I Set the audio output to"FIXED".

YES

Does the audio signal come from pins (4) (L) and (1) (P,) of input

terminal (J505) to pins (P,28) (L) and (T26) (P,) of IC3302 (CPU)?

_' NO

[ Check the line between J507 and IC3302. ]

YES YES

Does the digital audio signal come from pins(F28/F3O/G28) (AUBCK/AULP,CK/AOSDATA0) of

IC3302 (CPU) to pin (8/9/7) (SP_BCLK/SP_LP,CLK/SP_DATA) of IC2701 (Audio DSP)?

_' NO

I Check the line between J505 and IC3302.

_' NO

Check the line between IC3302 and IC2701,

and their peripheral circuits.

YES

• About the L/P,Speakers.

Does the digital audio signal come from pins(47/43/44/45) of

IC2701 (Audio DSP) to pin (5/8/7/6) of IC2703 (AMP for L/P,)?

• About the Subwoofer speaker.

Does the digital audio signal come from pins(47/43/44/46) of

IC2701 (Audio DSP) to pin (5/8/7/6) of IC2702 (AMP for SW)?

_' YES

• About the L/P,Speakers.

Is the audio output from IC2703 asspecified?

• About the Subwoofer Speaker.

ISthe audio output from IC2702 as specified?

_' Yes

• About the L!P,Speakers.

Check theconnector (P2701) L/P, speakers and their peripheral cir-

cuits.

• About the Subwoofer Speaker.

Check the connector (P2702), subwoofer speaker and their periph-

eral.

NO

NO

Check IC2701 and itsperipheral circuits. (X2701, etc.).

• About the L/P, Speakers.

Check IC2703 and itsperipheral circuits.

• About the Subwoofer Speaker.

Check IC2702 and itsperipheral circuits.

6-7

Contents

Main SHARP SERVICE MANUAL No. S701560LE920U/ SHARP CORPORATION LC-52LE920UN LC-60LE920UN F CONTENTS J LC-52LE920UN/LC-60LE920UN SAFETY PRECAUTION /DVM / rt.o ACSCALE o_-_ SAFETY NOTICE PRECAUTIONS APRENDRE LORS DE LA REPARATION AVERTISSEMENT =VERIFICATIONS CONTRE L'INCEN=DIE ET LE CHOC ELECTRIQUE l-i-i-i-i-i-i oooo i AVIS POUR LA SECURITE a Sn-Ag-Cu ='Using lead-free wire solder ='Soldering OUTLINE LC-52LE920UN/LC-60LE920UN MAJOR SERVICE PARTS mPWB UNIT mOTHER UNIT talC FOR EXCLUSIVE USE OF THE SERVICE ==SERVICE JIGS CHAPTER 1. SPECIFICATIONS 1-1 [1] SPECIFICATIONS TV Function CHAPTER 2. OPERATION MANUAL % 1 I 18 19 ii,iFAV0R,TE_--FAVAPP3--qo 2-2 3_ 5 _ .....................................................21 7 8 g 11 12 13 14 15 16 17_ 22 2 _9 3 CHAPTER 3. DIMENSIONS _d [2] DIMENSIONS (LC-60LE920UN) 141j2 j 3-2 Unit: inch (mm) LJ i _-- AN =52AG4 CHAPTER 4. REMOVING OF MAJOR PARTS [sP] [PL] [SB] 4. Removing of MAIN Unit, POWER Unit, Woofer, Stand Angle, 52" LCD Panel Module Unit. 4-4 (Bottom-L) I / R/C, LEDUnit Glass Front Panel Ass'y [RK] "(_)TOUCH SENSOR Unit @ Page [SB] ,,[PD] (Top-R) 4-9 )TERMINAL Cover (Bottom) ,_,1 :_ "-" (_ Front Cabinet Ass'y Unit _ Glass Front Panel Ass'y IRK] ('7)TOUCH SENSOR Unit LC-52LE920UN/LC-60LE920UN [3] Caution Cleaning Glass 1. Glass handling 4-11 Page LC-52LE920UN/LC-60LE920UN ! [4] How to replace the touch key sensor PWB i f.j Space U ! ill:iiiii Page CHAPTER 5. ADJUSTMENT [1] ADJUSTMENT PROCEDURE 5-1 1. After replacement of any PWB unit and/or IC for repair, please note the following. 2. Upgrading of each microprocessor software 5-2 5-3 3. Entering and exiting the adjustment process mode 4. Remote controller key operation and description of display in adjustment process mode 5-4 5. List of adjustment process mode menu 5-5 5-6 5-7 6. Special features 5-8 7. Microprocessor software writing 8. Signal adjustment 5-9 8.1. LCD section adjustment [LCD module adjustment] 8.2. Image adjustment 8.2.1 Device check 5-10 8.2.6 Analog RGB signal adjustment 5-11 Adjustment procedure Send the 100% color barsignal to theVideo 4 analog RGB input. 5-12 10. Key writing 10.1. EDIDwriting (Main PWB: QPWBXF452WJZZ) 5-13 11. Factory setting 12. Software version 5-14 LE920 UPGRADE SUCCESS The inch and model name are displayed. [2] PUBLIC MODE SETTING PROCEDURE 1. How to start Public Mode 5-15 2. How to exit Public Mode 3. Public Mode Setting Values Page 5. On Setting Items 5-17 5-18 5-19 Page CHAPTER 6. TROUBLESHOOTING TABLE [1] TROUBLESHOOTING TABLE 6-1 I INovideo12) I I _' NO 6-2 I .o 6-3 I .ovideo14) I 6-4 I<HDMI input> No video 15)-1 I I 6-5 LC-52LE920UN/LC-60LE920UN I<HDMI input> No video 15)-2 I I 6-6 INoaudio11) I IINPUT-1Noaudio, I 6-7 INoaudio12) I I 6-8 I.o audio13) I 6-9 I.o audio14) I 6-10 I NoINPUT-4151617IHDMI)audio. I 6-11 NO J' NO 6-12 t fig-2 Iharnessexchange ; YEs ; .o ; YEs ; .o 6-13 LC-52LE920UN/LC-60LE920UN ] ] 6-14 14oo s"t"4oo s' ,,iT,, oo s, ,,_500ms 3. New method ,r-q.j-q 6-15 6-16 4. Monitor ERR STBY table 6-17 CHAPTER 7. MAJOR IC INFORMATIONS [1] MAJOR IC INFORMATIONS 7-1 1. MAJOR IC INFORMATIONS Page Page CHAPTER 8. OVERALL WIRING/SYSTEM BLOCK DIAGRAM L 8-1 [1] OVERALL WIRING DIAGRAM OVERALL WIRING DIAGRAM i i _Uc"s_"s_itr_q LC-52LE920UN/LC-60LE920UN [2] SYSTEM BLOCK DIAGRAM SYSTEM BLOCK DIAGRAM _NPUT DDC0 8-2 SHARP PARTS GUIDE No. S701560LE920U/ LC-52LE920UN LC-60LE920UN [6] SHARP CORPORATION [1] PRINTED WIRING BOARD ASSEMBLIES z_ [2] LCD PANEL MODULE UNIT Page z_ [3] CABINET PARTS (LC-52LE920UN) Page A_ [4] CABINET PARTS (LC-60LE920UN) 1 I-I 1-2 1-3 1-4 1-5 1-6 1-7 2 2-I 2-2 2-3 2-4 2-5 2-6 2-7 2-8 2-9 2-I0 3 [5] SUPPLIED ACCESSORIES X5 7 Xll (x 2) 7 [6] PACKING PARTS (NOT REPLACEMENT ITEM) (LC-52LE920UN) 9 LC-52LE920UN/LC-60LE920UN [7] PACKING PARTS (NOT REPLACEMENT ITEM) (LC-60LE920UN) x5_t[._, L [7] PACKING PARTS (NOT REPLACEMENT ITEM) (LC-60LE920UN) 11 [81SERVICE JIGS (USE FOR SERVICING) SHARP COPYRIGHT 2010 BY SHARP CORPORATION ALL RIGHTS RESERVED.