OT? LCD monitor dead OT?

[Terry Coombs]

There was a lot of knowledge displayed above in the "computers" thread so ...

My 22" LCD just went dark . When the comp is hooked to it the power light does go green when I input , so I'm fairly sure the logic board is OK . I've disassembled it and the CCFL's look OK and none of the caps on the power supply are bulged . I'm not sure it's worth fixing if it means throwing parts at it . I'd like suggestions on testing the power supply , and yes I know there are some pretty high voltages present . The CCFL's are a bit dark on the ends , but not as bad as photos of failed units I found on the interwebs .

[IGot2P]

Green power light or not, first try hooking it to another system.

[Dan.Espen]

When my DELL 21" failed, I wrote to DELL. They replaced it under warranty.

[Retired]

What make / model ?? Does it not have any front or side panel setup/test buttons ??

[philoÂÂ]

Absolutely! The green light can also go on if the video signal is out of range so there is a possibility the problem is with the computer and not the monitor.

If the monitor is bad I doubt that it would be worth fixing as a new 22 inch monitor is probably $150.

[Terry Coombs]

Envision Model G22LWk . It does have setup buttons on the front lower center , pushing them in any sequence does nothing . Push the power button and the light comes on green . If not hooked to a system it'll go amber . This thing kinda flickered once then went dead . I thought it might be the backlight tubes , but they look OK . Bad caps on the power supply are a known source of problems , but none of these are bulged or leaking . I'm a bit lost here . This comp I'm using is where it belongs , and it runs this old CRT unit just fine ...

[Terry Coombs]

Well , I doubt it's the comp , since I'm using it with an older CRT monitor .

[KLayton888]

Suggest posting on sci.electronics.repair

[Bob_Villa]

[Mark Lloyd]

[snip]

I have had monitors fed with an out-of-range signal. The usual response is an on-screen display indicating that.

[snip]

[micky]

That doesn't mean anything!

[clare]

Actually, it does. It means the computer is functioning. If with the resolution set to 800X600 it still does not work on the flatscreen, it meens the flatscreen is dead.

What make/model did you say the dead screen is?? Extremely unlikel to be worth attempring to fix.

[Terry Coombs]

I'll be spending part of my tax refund on a new one . I'll also be spending some on consumibles for the machine shop ... I've been kinda rough on the smaller end mills while learning .

[Tony Hwang]

Hi, One time bad batch of caps affected monitors, mother boards. If the monitor is sick due to those caps. Replacing them usually revives it. Otherwise, I wouldn't bother.