4 Troubleshooting
4-2
4-2-1 No Power
4-2 Checkpoints by Error Mode
Does proper DC 13V
appear at JP845?
Change a Assy PCB Power.
Yes
Yes
No
Check a connection a power cable.
No
Does proper DC A3.3V,
A5V appear at
C1158, C1150?
Check a IC1112, Q1103.
Change a main PCB ass'y.
Yes
No
Does proper DC 5V, 3.3V,
1.2V appear at C1153, C1178,
C1170?
Check a IC1111, IC1102, IC1113.
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?
TIP: How to drive the circuit by force when LCD panel Lamp is faulty.
- It is available to drive the circuit when the pin of 2 in Main_Power_control CN1101
connect the pin of 4.
Summary of Contents for LE32M87BDX
Page 9: ...Memo 1 Precautions 1 4 ...
Page 31: ...4 Troubleshooting 4 4 WAVEFORMS 1 R G B Output Signal of IC2001 ...
Page 33: ...4 Troubleshooting 4 6 2 Digital Output Data of IC4001 3 Signal of HDMI Data ...
Page 35: ...4 Troubleshooting 4 8 WAVEFORMS 4 Tuner_CVBS Output Signal 3 CVBS Output Signal ...
Page 37: ...4 Troubleshooting 4 10 WAVEFORMS 4 CVBS Output Signal ...
Page 115: ...7 Block Diagrams 7 2 Memo ...
Page 139: ...9 Schematic Diagrams 9 14 Memo ...
Page 151: ...11 Disassembly and Reassembly 11 6 Memo ...
Page 153: ...12 PCB Diagram 12 2 12 2 SMPS Board Diagram ...
Page 154: ...12 PCB Diagram 12 3 12 3 Sub Board Diagram ...
Page 155: ...12 PCB Diagram 12 4 12 4 Sub Board Diagram ...
Page 158: ...13 Circuit Descriptions 13 3 13 2 Main Block ...
Page 159: ...13 Circuit Descriptions 13 4 13 3 SMPS Board ...
Page 167: ...14 Reference Infomation 14 8 14 3 2 Supported Modes 1 ...
Page 168: ...14 Reference Infomation 14 9 14 3 3 Supported Modes 2 ...
Page 169: ...14 Reference Infomation 14 10 14 3 4 Supported Modes 3 ...