4-24
4. Troubleshooting
4-1-6. No Video (Video CVBS)
Symptom
Audio is normal but no picture is displayed on the screen.
-
Major
checkpoints
Check the Video CVBS source
-
Check the Valencia
-
Check if the LVDS cable is loose or not.
-
Diagnostics
Yes
Check the LVDS cable?
Replace the LCD panel?
Please, contact Tech support.
No
Does the digital data appear at
Pin 11~81 of CN1602 ?
No
Change the IC1001 or
the main PCB assembly.
5
No
Change the CN408 or
the main PCB assy.
No video
No
Check the video source and
check the connection of video cable?
Does the signal appear at R439?
Yes
Yes
Input a video signal.
Check the connected cable.
5
Yes
Caution
Make sure to disconnect the power before working on the PD board.
Notice
Refer to the next page for detailed locations.
Содержание UN46C9000ZF
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Страница 106: ...4 14 4 Troubleshooting WAVEFORMS 1 2 PC Input V Sync H Sync 3 LVDS Out CLK ...
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Страница 109: ...4 17 4 Troubleshooting WAVEFORMS 4 5 HDMI Input CLK 6 Tuner CVBS Out Pattern Grey Bar 7 TS DATA Out Clk Data 0 ...
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Страница 112: ...4 20 4 Troubleshooting WAVEFORMS 5 Tuner CVBS Out Pattern Grey Bar 6 Eagle Out Clk H Sync ...
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Страница 115: ...4 23 4 Troubleshooting WAVEFORMS 5 Tuner CVBS Out Pattern Grey Bar 7 TS DATA Out Clk Data 0 ...
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Страница 118: ...4 26 4 Troubleshooting WAVEFORMS 5 Tuner CVBS Out Pattern Grey Bar ...
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Страница 121: ...4 29 4 Troubleshooting WAVEFORMS 5 Tuner CVBS Out Pattern Grey Bar 9 Component Input Y Pb ...
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Страница 124: ...4 32 4 Troubleshooting WAVEFORMS 0 Audio Input Sign Wave I2S Input Clk Data Audio Amp Out Sign Wave ...