4-10
4. Troubleshooting
4-1-2. No Video (Analog PC signal)
Symptom
Audio is normal but no picture is displayed on the screen.
-
Major
checkpoints
Check the PC source
-
Check the IC7001(Valencia)
-
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
Caution
Make sure to disconnect the power before working on the PD board.
Diagnostics
Change the PC cable.
Change the main PCB assembly.
No
Yes
Does the digital data appear at
output of IC6001?
No
Yes
No video
Yes
Check the PC source and check the
connection of DSUB?
No
Input an analog PC signal.
Check the connected cable.
Yes
Change the IC6001 or
the main PCB assembly.
Check the LVDS cable?
Replace the LCD panel?
Please, contact Tech support.
No
Does the signal appear at pin 14, 16, 12,
6, 1(R,G,B,H,V) of CN3011?
1
2
Содержание UN40C8000XM
Страница 10: ...4 3 4 Troubleshooting ...
Страница 16: ...4 9 4 Troubleshooting Location Main TOP Location Main BOTTOM ...
Страница 18: ...4 11 4 Troubleshooting Location Main TOP Location Main BOTTOM ...
Страница 19: ...4 12 4 Troubleshooting WAVEFORMS 1 PC Input V Sync H Sync 2 LVDS Out CLK ...
Страница 21: ...4 14 4 Troubleshooting Location Main TOP Location Main BOTTOM ...
Страница 22: ...4 15 4 Troubleshooting WAVEFORMS 3 4 HDMI Input CLK 5 TS DATA Out Clk Data 0 ...
Страница 24: ...4 17 4 Troubleshooting Location Main TOP Location Main BOTTOM ...
Страница 25: ...4 18 4 Troubleshooting WAVEFORMS 6 Tuner CVBS Out Pattern Grey Bar 7 Eagle Out Clk H Sync ...
Страница 27: ...4 20 4 Troubleshooting Location Main TOP Location Main BOTTOM ...
Страница 28: ...4 21 4 Troubleshooting WAVEFORMS 6 Tuner CVBS Out Pattern Grey Bar 7 Eagle Out Clk H Sync ...
Страница 30: ...4 23 4 Troubleshooting Location Main TOP Location Main BOTTOM ...
Страница 31: ...4 24 4 Troubleshooting WAVEFORMS 7 Eagle Out Clk H Sync 9 Component Input Y Pb ...
Страница 33: ...4 26 4 Troubleshooting Location Main TOP Location Main BOTTOM ...
Страница 34: ...4 27 4 Troubleshooting WAVEFORMS 0 Audio Input Sign Wave I2S Input Clk Data Audio Amp Out Sign Wave ...