Samsung UE D61 S Series Service Manual page 40

4. Troubleshooting
No Video (Analog PC signal)
„
N Refer to the next page to check the lacation such a CN201 or IC1001 SVC Manual mentioned.
Symptom
-
-
Major
-
checkpoints
-
Caution
Make sure to disconnect the power before working on the PD board.
1
2
Diagnostics
Caution Make sure to disconnect the power before working on the IP board.
4-6
Genoa-S
Audio is normal but no picture is displayed on the screen.
Check the PC source
Check the Arsenal, Check the Valencia.
This may happen when the LVDS cable connecting the Main Board and the Panel is
disconnected.
Check the PC source and check the
connection of DSUB?
Yes
Does the signal appear at
pin 1, 2, 3, 13, 14(R,G,B,H,V) of
CN401?
Yes
Does the digital data appear at
output of IC801?
Yes
Check the LVDS cable?
Replace the LCD panel?
Input an analog PC signal.
No
Check the connected cable.
No Change the PC cable.
Change the main PCB assembly.
No Change the IC801 or the
main PCB assembly.
No
Please, contact Tech support.