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4 Troubleshooting
4-1
4 Troubleshooting
4-1 First Checklist for Troubleshooting
1. Check the various cable connections first.
- Check to see if there is a burnt or damaged cable.
- Check to see if there is a disconnected cable connection or a connection is too loose.
- Check to see if the cables are connected according to the connection diagram.
2. Check the power input to the Main Board.
3. Check the voltage in and out between the SMPS Main Board, between the SMPS
INVERTER Board, and between the Main LVDS Boards.
Summary of Contents for LE40M71B
Page 9: ...Memo 1 Precautions 1 4 ...
Page 17: ...3 Alignments and Adjustments 3 4 ...
Page 18: ...3 Alignments and Adjustments 3 5 ...
Page 23: ...Memo 3 Alignments and Adjustments 3 10 ...
Page 27: ...4 Troubleshooting 4 4 WAVEFORMS 1 R G B Output Signal of IC500 ...
Page 29: ...4 Troubleshooting 4 6 2 Digital Output Data of IC500 3 Signal of HDMI Data ...
Page 31: ...4 Troubleshooting 4 8 WAVEFORMS 4 Tuner_CVBS Output Signal 3 CVBS Output Signal ...
Page 33: ...4 Troubleshooting 4 10 WAVEFORMS 4 CVBS Output Signal ...
Page 35: ...4 Troubleshooting 4 12 2 Digital Output Data of IC500 5 Analog Signal Y C to IC500 WAVEFORMS ...
Page 37: ...4 Troubleshooting 4 14 WAVEFORMS 6 The Signal are Inputed to IC1015 7 DC 12V ...
Page 71: ...7 Block Diagrams 7 2 Memo ...
Page 72: ...8 1 8 Wiring Diagrams 8 Wiring Diagram 8 1 Wiring Diagram ...
Page 73: ...8 Wiring Diagrams 8 2 8 2 Main Board Layout FRCH ...
Page 77: ...8 Wiring Diagrams 8 6 8 4 Power Board Layout ...
Page 80: ...8 9 8 Wiring Diagrams ...
Page 83: ...8 Wiring Diagrams 8 12 Memo ...
Page 91: ...9 Schematic Diagrams 9 8 Memo ...
Page 97: ...Memo 10 Operating Instructions and Installation 10 6 ...
Page 103: ...11 Disassembly and Reassembly 11 6 Memo ...
Page 105: ...12 PCB Diagram 12 2 12 2 SMPS PCB Layout ...
Page 108: ...13 Circuit Descriptions 13 3 13 2 Main Block ...
Page 109: ...13 Circuit Descriptions 13 4 13 3 IP Board ...
Page 117: ...14 Reference Infomation 14 8 14 3 2 Supported Modes 1 ...
Page 118: ...14 Reference Infomation 14 9 14 3 3 Supported Modes 2 ...
Page 119: ...14 Reference Infomation 14 10 14 3 4 Supported Modes 3 ...