Manuals / LG Electronics / TV and Video / Flat Panel Television

LG Electronics 32LS5600/560S/560T-ZC C. Audio error, Lcd Tv, Check user menu Speaker off, Normal

Models: 32LS5620-ZD 32LS5610/561T-ZA 32LS5600/560S/560T-ZC 32LS5610/561T

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Standard Repair Process

	Error	C. Audio error	Established	2012. 01 .14
LCD TV	Error	C. Audio error	date	2012. 01 .14
LCD TV	symptom	No audio/ Normal video	Revised date		9/14
		No audio/ Normal video	Revised date		9/14

No audio Screen normal

☞A15

Check user menu > Speaker off

Off

Cancel OFF

☞A16

Check audio B+	Normal	Y
24V of Power	Normal
24V of Power	voltage
Board	voltage
Board

Replace Power Board and repair parts

Check		N
Check		Disconnection
Speaker		Disconnection
Speaker
disconnection
		Y
		Y

		Replace Speaker

Replace MAIN Board

End

Copyright © 2012 LG Electronics. Inc. All rights reserved.	LGE Internal Use Only
Only for training and service purposes

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LG Electronics 32LS5600/560S/560T-ZC C. Audio error, Lcd Tv, Check user menu Speaker off, Check audio B+, Normal, voltage

Contents

READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LD21BSERVICE MANUAL http//aic.lgservice.comSERVICING PRECAUTIONS CONTENTSSAFETY PRECAUTIONS SPECIFICATIONSAFETY PRECAUTIONS IMPORTANT SAFETY NOTICESERVICING PRECAUTIONS Electrostatically Sensitive ES DevicesSmall-Signal Discrete Transistor Removal/Replacement IC Remove/ReplacementReplacement Removal1. Application range SPECIFICATION4. Model General Specification 3. Test methodsymbolrate SpecificationSymbolrate 4.0Msymbols/s to 7.2Msymbols/s DVB-S2 8PSK / QPSK 2 ~ 45Msymbol/s5.2. RGB Input PC - LS35/LS34/CS46 series models are not supported 5. Video resolutions 2D5.1. Component Input Y, CB/PB, CR/PR 5.3. HDMI InputPC/DTV PCDVI1. Application Range ADJUSTMENT INSTRUCTIONBoot file Download 2. Designation3.2. EDID Download 3.1. ADC Process3.3. EDID data 7. ADC Calibration3.4 Function Check 4. Total Assembly line process4.1. Adjustment Preparation 5. HI-POT Test 4.3. Outgoing condition Configuration6.1. Signal Table 6. Model name & Serial number D/L7.1 MAC Address 7. MAC Address & CI+ key download6.3. Method & notice GP4LOW7.2 LAN Inspection 7.3. LAN PORT INSPECTIONPING TESTOnly for training and service purposes SCREW ASSEMBLY WORKING GUIDEScrew specification and application situation ח ͷͲͳͤͤͤͪͥͣ͢͡ ͙;ͤ͛ͽͥͦ͑͟͝ͳͼ͑͝;ΒΔΙΚΟΖ͚ ח ͣ͢ͶͲLG2111 A RearSide IC101Side Applied Model **LM580T, **560T, **LS350T, **CS460TRear LG2111 ASide 560S, **LS350S, **CS460SRear LG2111 AEXPLODED VIEW Copyright 2012 LG Electronics. Inc. All rights reserved Only for training and service purposesGP4LS7LR22011.12.01 LGE Internal Use OnlyVDDC Normal PowerOnly for training and service purposes Normal+3.3VNormal FROM LIPS & POWER B/DPowerDET +1.5VDDRTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC IR/LED and control for normal modelsOnly for training and service purposes Copyright 2012 LG Electronics. Inc. All rights reservedUSB2DIODES USB SIDEUSB1DIODES Only for training and service purposesTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC HDMIOnly for training and service purposes Copyright 2012 LG Electronics. Inc. All rights reservedTHE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES RGB-PC / SPDIFOnly for training and service purposes SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATIONFor Comsumer model, use 4PIN Wafer RS-232CCOMMERCIAL/NonOS MODEL OPTION COMMERCIAL MODEL OPTION Only for training and service purposesTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC LVDS for large inchOnly for training and service purposes Copyright 2012 LG Electronics. Inc. All rights reservedGP4LS7LR22011/06/03 DDR25612 Only for training and service purposesS7LR2DIVXMS10 Copyright 2012 LG Electronics. Inc. All rights reservedCopyright 2012 LG Electronics. Inc. All rights reserved Serial Flash for SPI bootOnly for training and service purposes LGE Internal Use OnlyCopyright 2012 LG Electronics. Inc. All rights reserved Headphone *Option HEADPHONEOnly for training and service purposes LGE Internal Use OnlyOnly for training and service purposes CI RegionOption name of this page CISLOT because of Hong Kong THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESOnly for training and service purposes H/W option ETHERNETGP4LS7LR22011/06/14 ETHERNET21 ETHERNETTU2602TU2603 TDSS-G101D TDSN-G301D GP4RGLOBALTUNERBLOCKOnly for training and service purposes TU2601GP4LS7LR22011/11/02 DVBS27 DVB-S2 LNB Part AllegroOptionLNB Only for training and service purposesOnly for training and service purposes SCART / COMPONENT&COMPSITFULL SCART / COMPONENT1 THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATESTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC AUDIO AMPSTA380BWEOnly for training and service purposes Copyright 2012 LG Electronics. Inc. All rights reservedPage Contents of LCD TV Standard Repair Process Error symptom Contents of LCD TV Standard Repair Process Detail Technical ManualContinue to the next page ContentMain B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable A. Video errorLCD TV A2 Check Power Board 24v outputOnly for training and service purposes A. Video errorvoltages of Power LCD TVMenu→ Set up→ Support → Signal Test Signal strength Normal over 50% A. Video errorBy using Digital signal level meter By using Diagnostics menu on OSD Signal Quality Normal over 50%→ Set-Top-Box, Different maker TV etc A. Video errorLCD TV LCD TV A8/ A9A. Video error Check color by input -External Input COMPONENT -RGBVertical/Horizontal bar, residual image, light spot External device screen error-Color errorA. Video error LCD TVCheck Power On ‘”High” B. Power errorCheck Power LED Measure voltage of each output of Power B/DIf Power Off mode is not displayed Check Power B/D voltage B. Power errorCheck Power Off Mode POWEROFFABNORMAL1LCD TV C. Audio error24V of Power Check user menu Speaker offLCD TV C. Audio errorIn case of External Input signal error Check and fix external device Check audio B+ VoltageLCD TV D. Function error1. Remote controlR/C operating error Check & RepairY Check technical Signal information input? - Fix information D. Function errorCheck input signal Recognition errorIdentify nose type E. NoiseLCD TV F. Exterior defect LCD TV