
Contents
1. Precautions....................................................................................................................... 1-1
1-1. Safety Precautions .......................................................................................................................1-1
1-1-1. Warnings.............................................................................................................................1-1
1-1-2. Servicing the LED TV ........................................................................................................1-1
1-1-3. Fire and Shock Hazard......................................................................................................1-1
1-1-4. Product Safety Notices.................................................................................................... 1-2
1-2. Servicing Precautions................................................................................................................. 1-3
1-2-1. General Servicing Precautions ...................................................................................... 1-3
1-3. Static Electricity Precautions .................................................................................................... 1-4
1-4. Installation Precautions............................................................................................................. 1-5
2. Product Specications .................................................................................................... 2-1
2-1. Product information.....................................................................................................................2-1
2-2. Product specication..................................................................................................................2-2
2-3. Accessories................................................................................................................................2-10
2-4. Supported Formats....................................................................................................................2-11
3. Disassembly and Reassemble........................................................................................ 3-1
3-1. Disassembly ................................................................................................................................. 3-1
4. Troubleshooting .............................................................................................................. 4-1
4-1. Function Control Operation Test............................................................................................... 4-1
4-2. Power............................................................................................................................................4-2
4-2-1. TV POWER STANDBY TEST.............................................................................................4-4
4-2-2. SMPS/PANEL BACKLIGHT TEST ...................................................................................4-4
4-3. Video .............................................................................................................................................4-5
4-3-1. Customer Picture Test.....................................................................................................4-5
4-3-2. TROUBLESHOOTING VIDEO PROBLEMS – TV MAIN/T-CON Models .................4-6
4-4. Audio.............................................................................................................................................4-9
4-5. Network......................................................................................................................................4-10
4-6. Smart Hub Connection Test ....................................................................................................4-13
4-7. Bluetooth / WiFi Module........................................................................................................... 4-15
4-8. Replacing Main Board..............................................................................................................4-16
4-9. Factory Mode .............................................................................................................................4-18
4-10. Factory Mode Adjustments ...................................................................................................4-24
4-10-1. Entering Factory Mode ...............................................................................................4-24
4-10-2. Factory Data.................................................................................................................4-26
4-11. RS-232C.....................................................................................................................................4-35
4-12. AV Control Tabe .......................................................................................................................4-36
4-13. Updating the TV’s Software...................................................................................................4-43