Nothing Displays On Screen(Screen Is Black ,Color Of Led Is Green) - NEC MultiSync LCD1525V Service Manual

2. Nothing displays on screen (Screen is black, color of LED is green)
Is backlight lit?
NG
OK
Does computer output
RGB video signals?
NG
OK
Check OSM menu is displayed
on screen when you push the
"PROCEED" key.
NG
OK
Proceed "Abnormal screen"
section.
Refer "Checking the backlight
unit" section
Check the video cable for failure.
Check the host for output signal with
all black only.
1) Change pattern of video signal output on the host.
2) Reconnect the video cable.
3) Change the video cable.
Check if the LCD video signal
cable is connected between the
MAIN PWB and LCD module.
NG
OK
Next page
6-3
Failure Point
The Cable is disconnected.