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 LE27S71B
Page 15: ...3 Alignments and Adjustments 3 4 ...
Page 16: ...3 Alignments and Adjustments 3 5 ...
Page 24: ...4 Troubleshooting 4 4 WAVEFORMS 1 R G B Output Signal of IC500 ...
Page 26: ...4 Troubleshooting 4 6 2 Digital Output Data of IC500 3 Signal of HDMI Data ...
Page 28: ...4 Troubleshooting 4 8 WAVEFORMS 4 Tuner_CVBS Output Signal 3 CVBS Output Signal ...
Page 30: ...4 Troubleshooting 4 10 WAVEFORMS 4 CVBS Output Signal ...
Page 32: ...4 Troubleshooting 4 12 2 Digital Output Data of IC500 5 Analog Signal Y C to IC500 WAVEFORMS ...
Page 34: ...4 Troubleshooting 4 14 WAVEFORMS 6 The Signal are Inputed to IC603 7 DC 12V ...
Page 107: ...8 1 8 Wiring Diagrams 8 Wiring Diagram 8 1 LE27S71B LE32S71B LE37S71B LE40S71B Wiring Diagram ...
Page 108: ...8 Wiring Diagrams 8 2 8 2 Main Board Layout ...
Page 111: ...8 5 8 Wiring Diagrams ...
Page 112: ...8 Wiring Diagrams 8 6 8 4 Power Board Layout ...
Page 115: ...8 9 8 Wiring Diagrams ...
Page 124: ...10 2 Connection Panel 10 Operating Instructions and Installation 10 2 ...
Page 125: ...10 Operating Instructions and Installation 10 3 ...
Page 126: ...10 Operating Instructions and Installation 10 4 10 3 Remote Control ...
Page 133: ...12 PCB Diagram 12 1 12 PCB Diagram 12 1 26 Main PCB Diagram ...
Page 135: ...12 PCB Diagram 12 3 12 3 26 SMPS ...
Page 136: ...12 PCB Diagram 12 4 12 4 32 SMPS ...
Page 137: ...12 PCB Diagram 12 5 12 5 40 IP Board ...
Page 140: ...13 Circuit Descriptions 13 3 13 2 Main Block ...
Page 142: ...13 Circuit Descriptions 13 5 13 3 3 26 32 Power Block 13 3 4 26 32 SMPS Diagram ...
Page 143: ...13 Circuit Descriptions 13 6 ...
Page 144: ...13 Circuit Descriptions 13 7 13 3 5 37 Power Block 13 3 6 37 SMPS Diagram ...
Page 145: ...13 Circuit Descriptions 13 8 13 3 7 32 40 IP Board 13 3 8 32 40 IP Board ...
Page 153: ...14 Reference Infomation 14 8 14 3 2 Supported Modes 1 ...
Page 154: ...14 Reference Infomation 14 9 14 3 3 Supported Modes 2 ...
Page 155: ...14 Reference Infomation 14 10 14 3 4 Supported Modes 3 ...