LG Electronics 39LN548C Trouble Shooting Guide, Check the booting Voltage, Digital TV Video

Contents SERVICE MANUAL READ THE SAFETY PRECAUTIONS IN THIS MANUALLED TV MODEL 39LP360H 39LN548C/549COnly for training and service purposes CopyrightLG Electronics. Inc. All rights reserved LGE Internal Use OnlySAFETY PRECAUTIONS General GuidanceBefore returning the receiver to the customer Leakage Current Cold CheckAntenna Cold CheckSERVICING PRECAUTIONS Electrostatically Sensitive ES DevicesIC Remove/Replacement ReplacementSmall-Signal Discrete Transistor Removal/Replacement RemovalSPECIFICATION 4. Model General Specification1. Application range 3. Test methodSymbolrate 4.0Msymbols/s to 7.2Msymbols/s DVB-TGuard IntervalBitrateMbit/s 1/4, 1/8, 1/16, 1/325. Video resolutions 2D 5.1. Component Input Y, CB/PB, CR/PR5.2. RGB Input PC - HD Model 5.3. RGB Input PC - FHD Model5.3. HDMI InputPC/DTV PCDVIADJUSTMENT INSTRUCTION 1. Application Range2. Designation 3. Main PCB check processAfter downloading, have to adjust Tool Option again 3.1. ADC Process3.2. EDID Download 3.3. EDID data4.1. White Balance adjustment 4. Total Assembly line process3.4 Function Check 5. GND and HI-POT Test 6. Model name & Serial number D/L6.1. Signal Table 4.5. Outgoing condition Configuration7. CI+ key download 6.3. Method & notice7.1. Communication Prot connection 7.2. CI+ Key Download8.1. External speaker8OHM, 1W, Single-End 8. Check Commercial Features8.2. IR OUT 1. Check the booting Voltage TROUBLE SHOOTING GUIDE2. Digital TV Video 3. Analog TV Video 4. AV Video5. RGB Video 6. HDMI Video9. AV Audio 10. RGB AudioS7LR2 LGE211A-T8 BLOCK DIAGRAMTuner DVB- T/C 7. Audio of All iput 8. TV AudioEXPLODED VIEW 2012 . 11 2013 S7LR2Copyright 2013 LG Electronics. Inc. All rights reserved SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF ISVDDC NormalFROM LIPS & POWER B/D PowerDET+1.5VDDR +3.3VNormal780 mAIC501 NTP-7500LTHE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATIONTHE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC CONTROL IR & LEDLVDS 51Pin LVDS Connector For FHD 60Hz30Pin LVDS Connector FOR FHD REVERSE10bit Change in S7LRHDMI EEPROM HDMI1HDMI2 For CECRS232C RS - 232CHEADPHONE RGB PCSIDE USB PC AUDIOS7LRDIVXMS10 DDR256DDR13331GHYNIX EAN61828901SFLASH REAR COMPONENT PHONE JACK F u l lS c a r t SCART AUDIO MUTEEXTSPEAKERAMP SPEAKER OUT JACKEXTSPK IC1800CI POWER ENABLE CONTROL CI RegionOption name of this page CI SLOT because of Hong Kong PCMCIGP4RGLOBALTUNERBLOCK TU2602TU2603 TDSS-G101D