LG Electronics 32LS5610/561T B. Power error, Lcd Tv, Check Power Off Mode, POWEROFFABNORMAL1

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Check Power Off Mode

Standard Repair Process

 

 

Error

B. Power error

Established

2012. 01 .14

 

 

LCD TV

date

 

 

symptom

Off when on, off while viewing, power auto on/off

Revised date

 

8/14

 

 

 

 

 

 

 

 

 

 

 

Check outlet

☞A14

Check A/C cord

Check for all 3- phase power out

N

Error?

Y

Check Power Off Mode

CPU

Abnormal

Abnormal 1

Replace Main B/D

Normal? Y End

N

Replace Power B/D

Fix A/C cord & Outlet and check each 3 phase out

☞A13

(If Power Off mode is not displayed) Check Power B/D voltage

※Caution

Check and fix exterior of Power B/D Part

Normal Y voltage?

(If Power Off mode is not displayed) Check Power B/D voltage N

Replace Power B/D

Replace Main B/D

*Please refer to the all cases which can be displayed on power off mode.

Status

Power off List

Explanation

 

"POWEROFF_REMOTEKEY"

Power off by REMOTE CONTROL

 

"POWEROFF_OFFTIMER"

Power off by OFF TIMER

 

"POWEROFF_SLEEPTIMER"

Power off by SLEEP TIMER

 

"POWEROFF_INSTOP"

Power off by INSTOP KEY

 

"POWEROFF_AUTOOFF"

Power off by AUTO OFF

Normal

"POWEROFF_ONTIMER"

Power off by ON TIMER

 

"POWEROFF_RS232C"

Power off by RS232C

 

"POWEROFF_RESREC"

Power off by Reserved Record

 

"POWEROFF_RECEND"

Power off by End of Recording

 

"POWEROFF_SWDOWN"

Power off by S/W Download

 

"POWEROFF_UNKNOWN"

Power off by unknown status except listed case

Abnormal

"POWEROFF_ABNORMAL1"

Power off by abnormal status except CPU trouble

"POWEROFF_CPUABNORMAL"

Power off by CPU Abnormal

Copyright © 2012 LG Electronics. Inc. All rights reserved.

LGE Internal Use Only

Only for training and service purposes

 

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Contents SERVICE MANUAL CHASSIS LD21BREAD THE SAFETY PRECAUTIONS IN THIS MANUAL http//aic.lgservice.comSAFETY PRECAUTIONS CONTENTSSERVICING PRECAUTIONS SPECIFICATIONIMPORTANT SAFETY NOTICE SAFETY PRECAUTIONSElectrostatically Sensitive ES Devices SERVICING PRECAUTIONSReplacement IC Remove/ReplacementSmall-Signal Discrete Transistor Removal/Replacement Removal4. Model General Specification SPECIFICATION1. Application range 3. Test methodsymbolrate Symbolrate 4.0Msymbols/s to 7.2Msymbols/sDVB-S2 8PSK / QPSK 2 ~ 45Msymbol/s DVB-S QPSK 2 ~ 45Msymbol/s5.1. Component Input Y, CB/PB, CR/PR 5. Video resolutions 2D5.2. RGB Input PC - LS35/LS34/CS46 series models are not supported PCDVI 5.3. HDMI InputPC/DTVBoot file Download ADJUSTMENT INSTRUCTION1. Application Range 2. Designation3.3. EDID data 3.1. ADC Process3.2. EDID Download 7. ADC Calibration4.1. Adjustment Preparation 4. Total Assembly line process3.4 Function Check 6.1. Signal Table 4.3. Outgoing condition Configuration5. HI-POT Test 6. Model name & Serial number D/L6.3. Method & notice 7. MAC Address & CI+ key download7.1 MAC Address GP4LOW7.3. LAN PORT INSPECTIONPING TEST 7.2 LAN InspectionScrew specification and application situation SCREW ASSEMBLY WORKING GUIDEח ͷͲͳͤͤͤͪͥͣ͢͡ ͙;ͤ͛ͽͥͦ͑͟͝ͳͼ͑͝;ΒΔΙΚΟΖ͚ ח ͣ͢ͶͲ ח ͷͲͳͤͨͩͩͣ͑͢͡͡ ͙;ͧ͛ͽ͑͢͡͝ͳͼ͑͝;ΒΔΙΚΟΖ͚Side RearLG2111 A IC101LS350T/CS460T Applied Model **LM580T, **560T, **LS350T, **CS460TTDSN G301DLS350S/CS460S 560S, **LS350S, **CS460SG001D EXPLODED VIEW Copyright 2012 LG Electronics. Inc. All rights reserved GP4LS7LR22011.12.01to delete CI or gate for for SYSTEM EEPROMVDDC Normal PowerNormal DDR3PowerDET FROM LIPS & POWER B/D+3.3VNormal +1.5VDDRIR/LED and control for normal models USB1DIODES USB SIDEUSB2DIODES HDMI THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES RGB-PC / SPDIFSPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF ISCOMMERCIAL/NonOS MODEL OPTION COMMERCIAL MODEL OPTION RS-232CFor Comsumer model, use 4PIN Wafer LVDS for large inch GP4LS7LR22011/06/03 DDR25612 S7LR2DIVXMS10IC1201 H5TQ1G63DFR-H9CSFLASHMAINMACRONIX Serial Flash for SPI bootSFLASHMAINWINBOND IC1401-*1 W25Q80BVSSIG PHONE Headphone *Option HEADPHONEHEAD Option name of this page CISLOT because of Hong Kong CI Region10067972-0500LF GP4LS7LR22011/06/14 ETHERNET21 H/W option ETHERNETETHERNET TU2602TU2603 TDSS-G101D TDSN-G301D GP4RGLOBALTUNERBLOCKTU2601 TDSQ-G001DOptionLNB DVB-S2 LNB Part AllegroGP4LS7LR22011/11/02 DVBS27 DCDCGND and AGND are connectedFULL SCART / COMPONENT1 SCART / COMPONENT&COMPSITJK2801 PSC008-01AUDIO AMPSTA380BWE Page Contents of LCD TV Standard Repair Process Continue to the next page Contents of LCD TV Standard Repair Process Detail Technical ManualError symptom ContentLCD TV A. Video errorMain B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable A2 Check Power Board 24v outputCheck various voltages of PowerBoard 3.5V,12V,20V or 24V…Menu→ Set up→ Support → Signal Test Signal strength Normal over 50% By using Digital signal level meter By using Diagnostics menu on OSDSignal Quality Normal over 50% → Set-Top-Box, Different maker TV etc Check color by input -External Input COMPONENT -RGB A8/ A9※ Check Link CableVertical/Horizontal bar, residual image, light spot External device screen error-Color errorConnect other external device and cable Check color condition by input -External Input -Component RGBCheck Power LED B. Power errorCheck Power On ‘”High” Measure voltage of each output of Power B/DIf Power Off mode is not displayed Check Power B/D voltage Check Power Off ModePOWEROFFABNORMAL1 POWEROFFCPUABNORMAL24V of Power C. Audio errorCheck user menu Speaker off Check audio B+Check audio B+ Voltage In case of External Input signal error Check and fix external device1. Remote controlR/C operating error D. Function errorCheck & Repair Y Check technical Signal information input? - Fix information Check input signalRecognition error Replace Main B/DIdentify nose type E. NoiseF. Exterior defect
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