B. Power error, Lcd Tv | LG Electronics 32LS679C-ZC specification

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LG Electronics 32LS679C-ZC B. Power error, Lcd Tv, Check Power Off Mode, POWEROFFABNORMAL1, Poweroffcpuabnormal

Contents

http//aic.lgservice.com CHASSIS LD21BSERVICE MANUAL READ THE SAFETY PRECAUTIONS IN THIS MANUAL SPECIFICATION CONTENTSSAFETY PRECAUTIONS SERVICING PRECAUTIONS IMPORTANT SAFETY NOTICE SAFETY PRECAUTIONS Electrostatically Sensitive ES Devices SERVICING PRECAUTIONS Removal IC Remove/ReplacementReplacement Small-Signal Discrete Transistor Removal/Replacement 3. Test method SPECIFICATION4. Model General Specification 1. Application range DVB-S QPSK 2 ~ 45Msymbol/s Symbolrate 4.0Msymbols/s to 7.2Msymbols/ssymbolrate DVB-S2 8PSK / QPSK 2 ~ 45Msymbol/s 5.2. RGB Input PC 5. Video resolutions 2D5.1. Component Input Y, CB/PB, CR/PR PCDVI 5.3. HDMI InputPC/DTV 2. Designation ADJUSTMENT INSTRUCTIONBoot file Download 1. Application Range 7. ADC Calibration 3.1. ADC Process3.3. EDID data 3.2. EDID Download 3.4 Function Check 4. Total Assembly line process4.1. Adjustment Preparation 6. Model name & Serial number D/L 4.3. Outgoing condition Configuration6.1. Signal Table 5. HI-POT Test GP4LOW 7. MAC Address & CI+ key download6.3. Method & notice 7.1 MAC Address 7.3. LAN PORT INSPECTIONPING TEST 7.2 LAN Inspection ח ͷͲͳͤͨͩͩͣ͑͢͡͡ ͙;ͧ͛ͽ͑͢͡͝ͳͼ͑͝;ΒΔΙΚΟΖ͚ SCREW ASSEMBLY WORKING GUIDEScrew specification and application situation ח ͷͲͳͤͤͤͪͥͣ͢͡ ͙;ͤ͛ͽͥͦ͑͟͝ͳͼ͑͝;ΒΔΙΚΟΖ͚ ח ͣ͢ͶͲ LG2111 A BLOCK DIAGRAMRear Side EXPLODED VIEW for SYSTEM EEPROM GP4LS7LR22011.12.01Copyright 2012 LG Electronics. Inc. All rights reserved to delete CI or gate for DDR3 Normal PowerVDDC Normal +1.5VDDR FROM LIPS & POWER B/DPowerDET +3.3VNormal IR/LED and control for normal models USB2DIODES USB SIDEUSB1DIODES HDMI FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS RGB-PC / SPDIFTHE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION For Comsumer model, use 4PIN Wafer RS-232CCOMMERCIAL/NonOS MODEL OPTION COMMERCIAL MODEL OPTION LVDS for large inch H5TQ1G63DFR-H9C S7LR2DIVXMS10GP4LS7LR22011/06/03 DDR25612 IC1201 SFLASHMAINWINBOND IC1401-*1 W25Q80BVSSIG Serial Flash for SPI bootSFLASHMAINMACRONIX HEAD Headphone *Option HEADPHONEPHONE 10067972-0500LF CI RegionOption name of this page CISLOT because of Hong Kong ETHERNET H/W option ETHERNETGP4LS7LR22011/06/14 ETHERNET21 TDSQ-G001D GP4RGLOBALTUNERBLOCKTU2602TU2603 TDSS-G101D TDSN-G301D TU2601 DCDCGND and AGND are connected DVB-S2 LNB Part AllegroOptionLNB GP4LS7LR22011/11/02 DVBS27 PSC008-01 SCART / COMPONENT&COMPSITFULL SCART / COMPONENT1 JK2801 AUDIO AMPSTA380BWE Page Contents of LCD TV Standard Repair Process Content Contents of LCD TV Standard Repair Process Detail Technical ManualContinue to the next page Error symptom A2 Check Power Board 24v output A. Video errorLCD TV Main B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable or 24V… voltages of PowerCheck various Board 3.5V,12V,20V Signal Quality Normal over 50% By using Digital signal level meter By using Diagnostics menu on OSDMenu→ Set up→ Support → Signal Test Signal strength Normal over 50% → Set-Top-Box, Different maker TV etc Link Cable A8/ A9Check color by input -External Input COMPONENT -RGB ※ Check Check color condition by input -External Input -Component RGB External device screen error-Color errorVertical/Horizontal bar, residual image, light spot Connect other external device and cable Measure voltage of each output of Power B/D B. Power errorCheck Power LED Check Power On ‘”High” POWEROFFCPUABNORMAL Check Power Off ModeIf Power Off mode is not displayed Check Power B/D voltage POWEROFFABNORMAL1 Check audio B+ C. Audio error24V of Power Check user menu Speaker off Check audio B+ Voltage In case of External Input signal error Check and fix external device Check & Repair D. Function error1. Remote controlR/C operating error Replace Main B/D Check input signalY Check technical Signal information input? - Fix information Recognition error Identify nose type E. Noise F. Exterior defect