用户手册目录47LE8500 LCD TRAINING PACKAGE FALL 20101OUTLINE2Overview of Topics to be Discussed3Preliminary Matters (The Fine Print)4ESD Notice5LG Contact Information6LCD Direct View Overview7Basic Troubleshooting Steps847LE8500 PRODUCT INFORMATION SECTION9Wireless Media Box10Wireless LAN (DLNA Adaptor)1147LE8500 Remote Control17Basic Specifications1247LE8500 Logo Familiarization Page 1 of 41347LE8500 Logo Familiarization Page 2 of 41447LE8500Logo Familiarization Page 3 of 41547LE8500Logo Familiarization Page 4 of 416Accessing the Service Menu18TV Rear Input / Output Jacks19Software Updates (New and Changed Functions)20Software Updates (New and Changed Functions) Continued21USB Automatic Software Download Instructions22Manual Software Download:23Service Menu: Adding the Model and Serial Number24Service Menu: Downloading EDID Data Pg 1 of 225Service Menu: Downloading EDID Data Pg 2 of 22647LE8500 Product Dimensions27DISASSEMBLY SECTION28Removing the Back Cover29Circuit Board Layout30Connector Identification31Power Supply Board Removal32Removing the Main Board33Removing the Inverter (Main) Board34Removing the Inverter (Secondary) Board35Removing Front IR Board36TROUBLESHOOTING SECTION37POWER SUPPLY SECTION38Power Supply (SMPS) Board Layout39Power Supply Start Up Sequence40TV Turn On Commands (Main Board Side)41Power Supply Board Low Voltage Test 142Power Supply Board Backlights Test 243Power Supply Connector P201 Voltage and Diode Check44Power Supply Connector P204 / P205 Voltage and Diode Check45Power Supply Connector SK101 Voltage and Diode Check46Power Supply F101 and F501 Voltage Checks47INVERTER (LED BACKLIGHTS) SECTION48IOP Structure49IOP Structure Information50IOP Cartridge Breakdown51IOP Block Structure Information5247” Explode View of the IOP Panel53Inverter (Main) Component and Connector Identification54Inverter (Secondary) Component and Connector Identification55Inverter (Main) LED 13V B+ Route56Inverter (Secondary) 13V LED B+ Route57Inverter 13V LED B+ DC to DC Converter Troubleshooting58P-DIM (PWM-DIM) Explained59Inverter (Main) Fuse F1 and Inverter (Secondary) Fuse F101 Check60Inverter Crystals Y1, Y501 (Main) and Y501 on (Secondary) Information61Inverter LED Driver Information62LED Drive Signal Information63Inverter Board Connector CN3 to Extension (Left) (Voltages)64Inverter (Main and Secondary) CN1 and CN101(Voltage and Diode Check)65Inverter (Main) CN11 & Inverter (Secondary) CN103 (Voltage and Diode Check)66Inverter Main and Secondary Local Dimming Control Signals Waveforms67MAIN BOARD SECTION68Main Board Layout69Main Board (Front Side) Component Locations70Main Board (Front Side) Component Voltages71Main Board (Back Side) Component Locations72Main Board (Back Side) Component Voltages73Main Board X9001 and X9000 Crystal Checks74Main Board X8100 and X1001 Crystal Checks75Main Board DC to DC Converter (Voltages for Panel) Checks76Main Board Additional Panel Voltage Checks77Main Board Connector P8000 to Power Supply Voltage and Diode Check78Main Board Connector P7500 to the Panel Voltage and Diode Check79Main Board Connector P7501 to the Panel Voltage and Diode Check80Main Board Connector P1200 to (Ft. IR/Intelligent Sensor) Voltage and Diode Check81Main P7900 / P7901 (Voltage and Diode Check)82Main Board Connector P8800 to Speakers Voltage and Diode Check83Main JK8700 Wireless Dongle Jack (Voltage and Diode Check)84FRONT (IR, INTELLIGENT SENSOR and MOVING LED) SECTION85Front IR Board (Connections Identified)86Front Board Connectors CON1, CON2 and CON3 Voltage and Diode Check87INVISIBLE SPEAKER SECTION88INTERCONNECT DIAGRAM (11 X 17 FOLDOUT SECTION)89Interconnect Circuit Diagram90Local Dimming Waveforms91DC Voltages9247LE8500 Conclusion Page93文件大小： 10.9 MB页数： 93Language: English打开用户手册
