4-5
4. Troubleshooting
4-1-3. No Video (HDMI - Digital Signal)
Symptom
Audio is normal but no picture is displayed on the screen.
-
Major
checkpoints
Check the HDMI source
Check the M-star
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
-
-
Diagnostics
No
Does the digital data appear at
R6021~R6024, R6026~R6028,
R6010~R6017?
Power Indicator is off.
Lamp on, no video.
No
Check the connection
of HDMI cable?
Check a IC6003.
Change a main PCB ass’y.
Check a IC6003.
Change a main PCB ass’y.
No
Does the digital data appear at
output of LVDS Cable?
Check the LVDS cable?
Replace the LCD panel?
Please, Contact Tech support
Yes
Yes
Input a HDMI cable.
Yes
Yes
Yes
2
3
1
Caution
Make sure to disconnect the power before working on the IP board.
Summary of Contents for LA26B350F1
Page 29: ...1 4 1 Precautions Memo...
Page 39: ...4 4 4 Troubleshooting WAVEFORMS 1 R G B Output Signal...
Page 41: ...4 6 4 Troubleshooting WAVEFORMS 2 Digital Output Data 3 Signal of HDMI Data...
Page 43: ...4 8 4 Troubleshooting WAVEFORMS 3 CVBS Output Signal 4 Tuner_CVBS Output Signal...
Page 45: ...4 10 4 Troubleshooting WAVEFORMS 4 CVBS Output Signal...
