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4 Troubleshooting
4-2
4-2-1 No Power
4-2 Checkpoints by Error Mode
Does proper DC 12V
appear at CN800?
Change a Assy PCB Power.
Yes
Yes
No
Check a connection a power cable.
No
Does proper DC A3.3V,
A5V appear at
C854, C866?
Check a IC809, IC802.
Change a main PCB ass'y.
Yes
No
Does proper DC 5V, 3.3V,
1.8V appear at C811, C853,
C833?
Check a IC803, IC805, IC813, IC307.
Change a main PCB ass'y
Yes
A power is supplied to set?
Check a other function.
(No picture part)
Replace a lcd panel.
No
No
LAMP off, power indicator
LED red color?
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 ...