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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
19"/22"_C350
26"/32"_C350
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 IC4000.
Change a main PCB ass’y
Yes
Check a LVDS cable?
Replace a lcd panel?
Does the signal appear at R4059,
R4058, R4056, R4061,
R4060(R,G,B,H,V) of IC4000?
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.
Содержание LA19C350D1
Страница 34: ...1 4 1 Precautions Memo ...
Страница 53: ...4 4 4 Troubleshooting WAVEFORMS 1 R G B Output Signal ...
Страница 55: ...4 6 4 Troubleshooting WAVEFORMS 2 Digital Output Data 3 Signal of HDMI Data ...
Страница 57: ...4 8 4 Troubleshooting WAVEFORMS 3 CVBS Output Signal 4 Tuner_CVBS Output Signal ...
Страница 59: ...4 10 4 Troubleshooting WAVEFORMS 4 CVBS Output Signal ...
Страница 61: ...4 12 4 Troubleshooting WAVEFORMS 6 The Signal are Inputed to IC1201 7 The Signal are Inputed to IC1202 ...
Страница 77: ...6 1 6 Wiring Diagram 6 Wiring Diagram 6 1 Wiring Diagram ...