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Presario 2500 - no LCD backlight

2642 Views 0 Replies 1 Participant Last post by  tarja311
Hello all. I hope i am posting this in the right place.

I own a :
- Compaq Presario 2500 ( DM758A )
- 2.3 GHz Pentium 4 w/ 768 MB of RAM
- Windows XP Home Edition - SP2
- and it's a notebook computer

I have purchased this notebook back in February of 04. Within the last week or so my LCD screen had just went completely black on me. The first time it occured, i immediately thought it just went into standby or hibernation mode since i was just letting it idle for a while. But then i realized this was not the case because i could not get the screen back up. I restarted the machine twice and my display came back for the remainder of the night. The next day i went to turn it back on but this time the screen did not recover as easily as before. It remained dark from POST to desktop. I noticed that i could very faintly see the desktop if i move the screen into the light. This was when i realized the backlight had gone out.

( EDIT : Also i forgot to mention, if i turn the computer on with the screen partially up, the backlight works fine. It's not until i flip the screen all the way up that it goes black again. The only way to get the backlight back on is if i turn the computer off and turn it back on with the screen partially up )

I have read that it could be the light itself or the inverter, or even a bad LCD plug, but i am not sure. I dismantled my notebook and played with the LCD plug, but to no avail.

Now my question is, if i purchased a brand new LCD screen to replace the old one, will this fix my problem? Or is there another component that might need to be replaced as well? and is the LCD inverter located inside the screen?

Thanks for your time.

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