Intermittent flicker - LCD monitor

[katzcaps]

Working an a '09? or so Acer, 22", I think. Random very slight screen flicker. Here's the thing; it may flicker off & on for a couple of days, & then clear up and not flicker again for a week.

Initially, I had it in for a black screen/wouldn't power on. I replaced several bulged caps & went over everything very well visually, couldn't see anything else wrong.

Ideas?

[t.j.]

Re: Intermittent flicker - LCD monitor

post pics! an should have replace more then just the bulging caps, the other caps in the same areas have been stressed out from the badcaps .

[katzcaps]

Re: Intermittent flicker - LCD monitor

Sorry!

Should have included more info. I guess. I actually did replace all the caps. Guess I didn't word that correctly.

I don't have any way to get pics at the moment. Just thought that by the symptoms I'm describing, someone might think of something.

I did go over the boards with a strong magnifier & I have a good eye - I'm certain I did not notice anything else defective.

[tibimakai]

Re: Intermittent flicker - LCD monitor

Couldn't be the tube itself going bad?

[smason]

Re: Intermittent flicker - LCD monitor

Listen very carefully in a quiet room, hear any hissing or arcing? Could be a bad connection to one of the ccfls.

I'm assuming "going over the boards with a strong magnifier" includes looking for bad solder joints.

[jetadm123]

Re: Intermittent flicker - LCD monitor

The monitor model # and photos of the boards would be helpful at this point.

[t.j.]

Re: Intermittent flicker - LCD monitor

did you replace with low esr or general caps?