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 MST336CCLK, Check the Bayhill+
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
-
-
Diagnostics
Check CN101, PC cable.
Change the PC cable. Change the main
PCB assembly
No
Yes
Does the digital data appear at
output of R1308 ~R1321,
R1323~R1336?
No
Yes
Power Indicator is off.
Lamp(Backlight) Off, no video
Yes
Check the PC source and
check the connection of DSUB?
No
Input an analog PC signal.
Check the connected cable.
Yes
Check IC1001 Change the main PCB
assembly
Check the LVDS cable?
Replace the LCD panel?
Please, Contact Tech support
No
Does the signal appear at
#11,#10,#8,#4,#5
(R, G, B, H, V) of IC601?
1
2
Caution Make sure to disconnect the power before working on the IP board.
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