Samsung LA19C350D1 Service Manual page 52

4-1-2. No Video (Analog PC signal)
Symptom Audio is normal but no picture is displayed on the screen.
-
Check the PC source
-
Major
Check the M-star
-
checkpoints
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
Check a PC source and check
the connection of DSUB cable?
Does the signal appear at R4059,
1
R4060(R,G,B,H,V) of IC4000?
Diagnostics
Does the digital data appear at the
2
3
Please, Call to Samsung Co. LTD.
Caution Make sure to disconnect the power before working on the IP board.
All manuals and user guides at all-guides.com
19"/22"_C350
Power Indicator is off.
Lamp on, no video.
Yes
Yes
R4058, R4056, R4061,
Yes
output of LVDS Cable?
Yes
Check a LVDS cable?
Replace a lcd panel?
Yes
Input a analog PC signal and
No
connected cable(DPMS).
PC cable change a PC cable.
No
Change a main PCB ass'y.
No
Check a IC4000.
Change a main PCB ass'y
4. Troubleshooting
26"/32"_C350
4-3