Acer RB23WABAS 5.2Nothing display on screen (screen is black, color of LED is blue), 24 5.Troubleshooting (continued)

Isbacklight lit?
Refer"Checking the backlight unit" s ection"
OK
NG
Doescomputer output RGB video signals?
OK
CheckOSM menu is display on screen
whenyou push the "MENU" key.
Proceed"Abnormal sreen" dection"
OK
NG
Checkthe video cable for failure. Check the host for output signal is all
blackor not.
1)Change pattern of video signal output on the host.
2)Reconnect the video cable.
3)Change the video cable.
NG Checkif the LCD video signal cable is connected between the Int erface
Boardand LCD module.
OK
NextPage
NG
FailurePoint
TheLCD video signal cable is disconnected.
5.2Nothing display on screen (screen is black, color of LED is blue)
Go to cover page
24 5.Troubleshooting (continued)
ACERH233H