Asus PA246Q - Troubleshooting

Service Manual PA246Q
52
11 Trouble Shooting
11.1 No Display or display is unstable (Interface Board):
OSD shown when key pressed?
No
Yes
Follow instructions from OSD dialog
Keypad OK?
Yes
No
Screen is Blank and
Power LED is white.
Backlight turned
ON?
Scalar output
Data ?
Yes
Proceed to
“Check Power Board”.
No
Yes
“Check LCD Module”
No
Proceed to
“Check Scalar”
Proceed to
“Check Control Board”.