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 LE40N87BDX
Page 13: ...2 Product Specifications 2 8 Memo...
Page 37: ...11 Disassembly and Reassembly 11 6 Memo...
Page 41: ...4 Troubleshooting 4 4 WAVEFORMS 1 R G B Output Signal of IC2001...
Page 43: ...4 Troubleshooting 4 6 2 Digital Output Data of IC4001 3 Signal of HDMI Data...
Page 45: ...4 Troubleshooting 4 8 WAVEFORMS 4 Tuner_CVBS Output Signal 3 CVBS Output Signal...
Page 47: ...4 Troubleshooting 4 10 WAVEFORMS 4 CVBS Output Signal...
Page 49: ...4 Troubleshooting 4 12 2 Digital Output Data of IC2001 5 Analog Signal Y C to IC2001 WAVEFORMS...
Page 67: ...3 Alignments and Adjustments 3 16 Memo...
Page 69: ...7 Block Diagrams 7 2 Memo...
Page 71: ...12 PCB Diagram 12 2 12 2 IP Board Diagram 37...
Page 72: ...12 PCB Diagram 12 3 12 3 IP Board Diagram 40...
Page 73: ...12 PCB Diagram 12 4 12 4 IP Board Diagram 46...
Page 74: ...12 PCB Diagram 12 5 12 5 IP Board Diagram 52...
Page 75: ...12 PCB Diagram 12 6 Memo...
Page 81: ...8 Wiring Diagrams 8 6 8 4 Power Board Layout...
Page 84: ...8 9 8 Wiring Diagrams...
Page 87: ...8 Wiring Diagrams 8 12 Memo...
Page 122: ...13 Circuit Descriptions 13 3 13 2 Main Block...
Page 123: ...13 Circuit Descriptions 13 4 13 3 IP Board...
Page 129: ...10 Operating Instructions and Installation 10 6 Memo...
Page 137: ...14 Reference Infomation 14 8 14 3 2 Supported Modes 1...
Page 138: ...14 Reference Infomation 14 9 14 3 3 Supported Modes 2...
Page 139: ...14 Reference Infomation 14 10 14 3 4 Supported Modes 3...
Page 150: ...Memo 1 Precautions 1 4...