Sharp 60LE920UN, 52LE920UN service manual Noaudio12

Page 54

LC-52LE920UN/LC-60LE920UN
I				Noaudio12)				I
I	[PC analo_l audio input] INPUT-3		No audio,	I	I	[HDMI analo_l audio input] INPUT-4 No audio.		I
Is INPUT-3	selected	on the input select menu	screen?			Is INPUT-4 selected	on the input select menu screen?	I
		_' NO					NO
	I	Refer to ": No external input video [INPUT-3]".				I	Refer to ": No external input video [IN PUT-4]".	I
YES						YES

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

_' NO

I Set the audio output to "FIXED".

YES

Isscreen?the "PC input" - "Audio select for "Video + Audio" on the menu

J' NO

Audio"Set the. "PC input" - "Analog select" to "Video +

YES

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

_' NO

I Set the audio output to "FIXED".

YES

Is the "PC input" -"Audio select" selected for "HDMI + Analog" on the menu screen?

_' NO

Set the "PC input" - "Analog select" to "HDMI +

Analog.

YES

Does the digital audio signal come from pins (F28/F30/G28) (AUBCK/AULRCK/AOSDATA0) of

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

_' NO

Check the line between IC3302 and IC2701, and their peripheral circuits.

YES

• About the L/R 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/R)?

• 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/R Speakers.

Is the audio output from IC2703 as specified?

• About the Subwoofer Speaker.

IS the audio output from IC2702 as specified?

_' Yes

• About the L!R Speakers.

Check the connector (P2701) L/R 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 its peripheral circuits. (X2701, etc.).

• About the L!R Speakers.

Check IC2703 and its peripheral circuits.

• About the Subwoofer Speaker.

Check IC2702 and its peripheral circuits.

6-8

Image 54

Contents Models LC-60LE920UN Safety Checks 5k ohm Important Service Safety PrecautionSafety Notice ==BEFORE Returning the Receiver Fire Shock HazardDVM Precautions a Prendre Lors DE LA ReparationAvertissement AUX Pieces Bran HER a UNE Metalliques Terre Connue Exposees=Using lead-free wire solder =Employing lead-free solderMajor Service Parts TalC for Exclusive USE of the ServiceSpecifications Parts Name AUO,OIi,iFAV0R,TE--FAVAPP3--qo Insert the stand into the openings on the rear of the TV Dimensions Dimensions LC-52LE920UNDimensions LC-60LE920UN 141j2Removing of Major Parts LC-52LE920UN Removing of Stand Unit and Rear Cabinet AssyMAiN Unit Speaker-R Speaker-L Cover Removing of Speaker-L/RPower Unit Main Unit Removing of ConnectorsLCD LED Removing of Major Parts LC-60LE920UN Speaker-R Power Unit LED Drive Unit Main Unit PD .m Terminal Cover Bottom Front Cabinet Assy LC-52LE920UN/LC-60LE920UN Glass handlingGlass cleaning Space Illiiiii LC-52LE920UN/LC-60LE920UN Main software version upgrade Get ready before you start Adjustment ProcedureSoftware version upgrade Upgrading of each microprocessor softwareLC-52LE920UN/LC-60LE920UN How to upgrade the software UP/DOWN Entering and exiting the adjustment process modeRemote Controller key Main Unit Key LEFT/RIGHT Input EnterLine List of adjustment process mode menuRemarks adjustment detail, etc DescriptionOffset Analog RGB ADJGain Vcom ADJLine Description Remarks adjustment detail, etc Special features Description Remarks adjustment detail, etcMODE2 Adjustment procedure Signal adjustmentAdjustment item Adjustment conditions Model/inch discrimination writing Main PWB QPWBXF452WJZZVideo input signal Adjustment Point Adjustment conditions ProcedureComponent 15K Tuner/V-CHIP Adjustment Point Conditions Procedure RGB ADJOPC OFF AdjustmentAdjustment conditions pointAV Mode Dynamic OFFAdjustment Adjustment conditions Procedure Point Key writing Edid writing Main PWB QPWBXF452WJZZPWB Writing the inch and model name onto Eeprom Factory settingSoftware version ENTHow to exit Public Mode Public Mode Setting ProcedureHow to start Public Mode Public Mode Setting ValuesPublic Mode Menu On Setting Items Menu Button Input Mode StartPanel Button On Screen Display12AV Position Fixed 10INPUT Mode Fixed11RCPATHTHROUGH 13LOUD Speaker ON/OFF15PUBLIC Mode ON!OFF Troubleshooting Table No videLC-52LE920UN/LC-60LE920UN Component No external input video IINPUT-1Video No video at Uhfnhf broadcast silnal reception No video at dilital broadcast silnal receptionLvds TX 0 DATA2P/N Video14 PC No external Input video INPUT-3Hdmi No externalHdmi input Hdmi No external input video INPUT-6INPUT-2 No audio VariableAUBCK/AULP,CK/AOSDATA0 Noaudio12 Audio13 Audio14 INoINPUT-4151617IHDMIaudio No audio at dilital broadcast silnal receptionHP/MONIR No connect NetworkIf it is not An error If it is not an error of power supply/LEDIt is start-up in the lamp Error Disrelard Mode Do you Driver It is start-up Lamp Error Disrelard ModeTrouble Shootinl Panel Module Display methodLED flashing Method Flashing during VerupRLA.JIJ!,r-q.j-q New methodError Type Center Icon LED operation Inverter/Lamp failure details Flashes slowly onceIcon LED operation Display Error descriptionMonitor ERR Stby table Dpow DETD3V3Major IC Informations IC1504 VHiSii9287+-1QLC-52LE920UN/LC-60LE920UN Memo PDDKEYMF452FM20 Overall Wiring DiagramWoofer RSP-ZA482WJZZ RUNTKA690WJQZ IRKSystem Block Diagram Parts Guide Printed Wiring Board Assemblies LCD Panel Module UnitDescription Cabinet Parts LC-52LE920UN Cabinet Parts LC-52LE920UN Cabinet Parts LC-60LE920UN SensorCabinet Parts LC-60LE920UN Supplied Accessories Parts Code Price NEW Description Rank Mark DelveryPacking Parts not Replacement Item LC-52LE920UN Packing Parts not Replacement Item LC-52LE920UN X5t¢ Packing Parts not Replacement Item LC-60LE920UN Service Jigs USE for ServicingSharp