24

 

ACER H233H

 

 

 

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5. Troubleshooting (continued)

5.2 Nothing display on screen (screen is black, color of LED is blue)

Is backlight lit?

NG

OK

Does computer output RGB video signals?

NG

OK

Check OSM menu is display on screen

when you push the "MENU" key.

NG

OK

Proceed "Abnormal sreen" dection"

Refer "Checking the backlight unit" section"

Check the video cable for failure. Check the host for output signal is all

black or not.

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 Interface

Board and LCD module.

 

 

 

 

 

 

 

 

 

 

 

 

 

Failure Point

 

 

 

NG

 

 

 

 

 

 

 

 

 

OK

 

 

 

 

The LCD video signal cable is disconnected.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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