Nothing Displays On Screen (Screen Is Black, Color Of Led Is Green) - HP R15AAC Service Manual

4.

Nothing displays on screen (Screen is black, color of LED is green)

Is backlight lit?
OK
Does computer output RGB video signals?
OK
Check OSM menu is display on screen
when you push the "PROCEED" key.
OK
Proceed "Abnormal sreen" dection"
Page 16
NG Refer "Checking the backlight unit" section"
Check the video cable for failure. Check the host for output signal with
1)Change pattern of video signal output on the host.
NG 2)Rsconnect the video cable.
3)Change the video cable.
Check if the LCD module signal cable is connected between the
NG
Interface Board and LCD module.
all black only.
Failure Point
NG
OK
The LVDS cable is disconnected.
Next Page
R15AAC/AAU (vs15)