LCD backlight goes off after 10 sec to 10 min

[jeepster]

I have a Conia brand LCD TV - I think it a rebadge name by some importer.
Anyway, the backlight drops out after a while. If you switch it off and on
again, it lasts about 10 seconds before off. If I wait till next morning, when it
is cooler, then maybe goes 20-30 seconds. But the strange thing is if I leave it
for a few weeks, then try again, it lasts 10 minutes before the backlight
goes out. Does this sound like a bad electrolytic in the backlight power
supply? I have search in LCD monitor forums, and it seems usually the
backlight goes off after 2 second or less.
The reason I ask is that the case of this TV is a prick of a thing. It has 2
halves clipped together in such a way that two people would be required
to lever it apart with small screwdrivers. I am hoping it is a simple fault to
justify the hassle of getting at bad components.

[Dgtech]

Re: LCD backlight goes off after 10 sec to 10 min

You're gonna have to get into this thing, theres no way around it. I've noticed some cheaper, non-brandname sets have unusual cases and weird ways to properly open them. Once you do, post pics of the boards inside using "Manage Attatchments" on the post page.

[PlainBill]

Re: LCD backlight goes off after 10 sec to 10 min

This sounds similar to a problem I had with a Philips LCD, although the 'On' time was often much shorter. That was due to a bad transformer in the inverter.

PlainBill