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Screen is almost black


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#1 repairman

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Posted 25 August 2013 - 03:12 PM

I have a Compaq CQ60 Notebook computer, and the screen is almost black, What I mean that it is almost black is that you have to look at it very close to see a picture. I need to know what I can do to fix it?



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#2 rotor123

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Posted 25 August 2013 - 04:40 PM

Ok, That is a CCFL backlight type of screen.

 

That means it has the Cold Cathode Flourescent lamp as a backlight. So either

1. The backlight has gone bad

2. The Inverter has gone bad

3. The Motherboard circuitry that feeds the Inverter has gone bad

4. Bad/Loose wires from the motherboard to the Inverter. These are usually part of the video cable harness.

5. Someone turned the brightness way down

 

This is the service manual for the CQ60:

Compaq Presario CQ60 Notebook PC HP G60 Notebook PC - Maintenance and Service Guide

http://h10032.www1.hp.com/ctg/Manual/c02985882.pdf

 

It looks like Chapter four covers replacing parts.

 

Unfortunately the best test is substitution.

 

Good Luck

Roger


Edited by rotor123, 25 August 2013 - 04:41 PM.

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#3 Simply_Michael

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Posted 26 August 2013 - 07:20 AM

You can fix it by changing settings, if it will not work than there is hardware problem.






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