4-3
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 M-star
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
-
-
Diagnostics
No
PC cable change a PC cable.
Change a main PCB ass’y.
No
Does the digital data appear at the
output of LVDS Cable?
Power Indicator is off.
Lamp on, no video.
No
Check a PC source and check
the connection of DSUB cable?
Check a IC6003.
Change a main PCB ass’y
Yes
Check a LVDS cable?
Replace a lcd panel?
Does the signal appear at R6034,
R6035, R6034, R6032,
R6033(R,G,B,H,V) of IC6003?
Please, Call to Samsung Co. LTD.
Yes
Yes
Input a analog PC signal and
connected cable(DPMS).
Yes
1
Yes
2
3
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...
