A. Video error, Lcd Tv | LG Electronics 32LS679C-ZC specification

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LG Electronics 32LS679C-ZC A. Video error, Lcd Tv, By using Digital signal level meter By using Diagnostics menu on OSD

Contents

READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LD21BSERVICE MANUAL http//aic.lgservice.com SERVICING PRECAUTIONS CONTENTSSAFETY PRECAUTIONS SPECIFICATION SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE SERVICING PRECAUTIONS Electrostatically Sensitive ES Devices Small-Signal Discrete Transistor Removal/Replacement IC Remove/ReplacementReplacement Removal 1. Application range SPECIFICATION4. Model General Specification 3. Test method DVB-S2 8PSK / QPSK 2 ~ 45Msymbol/s Symbolrate 4.0Msymbols/s to 7.2Msymbols/ssymbolrate DVB-S QPSK 2 ~ 45Msymbol/s 5. Video resolutions 2D 5.1. Component Input Y, CB/PB, CR/PR5.2. RGB Input PC 5.3. HDMI InputPC/DTV PCDVI 1. Application Range ADJUSTMENT INSTRUCTIONBoot file Download 2. Designation 3.2. EDID Download 3.1. ADC Process3.3. EDID data 7. ADC Calibration 4. Total Assembly line process 4.1. Adjustment Preparation3.4 Function Check 5. HI-POT Test 4.3. Outgoing condition Configuration6.1. Signal Table 6. Model name & Serial number D/L 7.1 MAC Address 7. MAC Address & CI+ key download6.3. Method & notice GP4LOW 7.2 LAN Inspection 7.3. LAN PORT INSPECTIONPING TEST ח ͷͲͳͤͤͤͪͥͣ͢͡ ͙;ͤ͛ͽͥͦ͑͟͝ͳͼ͑͝;ΒΔΙΚΟΖ͚ ח ͣ͢ͶͲ SCREW ASSEMBLY WORKING GUIDEScrew specification and application situation ח ͷͲͳͤͨͩͩͣ͑͢͡͡ ͙;ͧ͛ͽ͑͢͡͝ͳͼ͑͝;ΒΔΙΚΟΖ͚ Side BLOCK DIAGRAMRear LG2111 A EXPLODED VIEW to delete CI or gate for GP4LS7LR22011.12.01Copyright 2012 LG Electronics. Inc. All rights reserved for SYSTEM EEPROM Normal Normal PowerVDDC DDR3 +3.3VNormal FROM LIPS & POWER B/DPowerDET +1.5VDDR IR/LED and control for normal models USB SIDE USB1DIODESUSB2DIODES HDMI SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION RGB-PC / SPDIFTHE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS RS-232C COMMERCIAL/NonOS MODEL OPTION COMMERCIAL MODEL OPTIONFor Comsumer model, use 4PIN Wafer LVDS for large inch IC1201 S7LR2DIVXMS10GP4LS7LR22011/06/03 DDR25612 H5TQ1G63DFR-H9C Serial Flash for SPI boot SFLASHMAINMACRONIXSFLASHMAINWINBOND IC1401-*1 W25Q80BVSSIG Headphone *Option HEADPHONE PHONEHEAD CI Region Option name of this page CISLOT because of Hong Kong10067972-0500LF H/W option ETHERNET GP4LS7LR22011/06/14 ETHERNET21ETHERNET TU2601 GP4RGLOBALTUNERBLOCKTU2602TU2603 TDSS-G101D TDSN-G301D TDSQ-G001D GP4LS7LR22011/11/02 DVBS27 DVB-S2 LNB Part AllegroOptionLNB DCDCGND and AGND are connected JK2801 SCART / COMPONENT&COMPSITFULL SCART / COMPONENT1 PSC008-01 AUDIO AMPSTA380BWE Page Contents of LCD TV Standard Repair Process Error symptom Contents of LCD TV Standard Repair Process Detail Technical ManualContinue to the next page Content Main B/D↔ Power B/D, LVDS Cable,Speaker Cable,IR B/D Cable A. Video errorLCD TV A2 Check Power Board 24v output Board 3.5V,12V,20V voltages of PowerCheck various or 24V… By using Digital signal level meter By using Diagnostics menu on OSD Menu→ Set up→ Support → Signal Test Signal strength Normal over 50%Signal Quality Normal over 50% → Set-Top-Box, Different maker TV etc ※ Check A8/ A9Check color by input -External Input COMPONENT -RGB Link Cable Connect other external device and cable External device screen error-Color errorVertical/Horizontal bar, residual image, light spot Check color condition by input -External Input -Component RGB Check Power On ‘”High” B. Power errorCheck Power LED Measure voltage of each output of Power B/D POWEROFFABNORMAL1 Check Power Off ModeIf Power Off mode is not displayed Check Power B/D voltage POWEROFFCPUABNORMAL Check user menu Speaker off C. Audio error24V of Power Check audio B+ In case of External Input signal error Check and fix external device Check audio B+ Voltage D. Function error 1. Remote controlR/C operating errorCheck & Repair Recognition error Check input signalY Check technical Signal information input? - Fix information Replace Main B/D E. Noise Identify nose type F. Exterior defect

LG Electronics 32LS679C-ZC service manual A. Video error, Lcd Tv, Signal Quality Normal over 50%

Models: 32LS679C-ZC