Viewsonic N3252W Power Issues

[thrallking]

My N3252W has decided it finally wanted to start giving me problems. A few days ago it blew a few capacitors (six to be exact) in the power supply and stopped turning on. I went ahead and replaced the caps and it started working again. Well, it worked for two days at least.

Not long ago the screen flickered and then went black, but unlike last time there are no popped caps. Whenever I hit the power button the light turns green, then off, then back to red ready to do the cycle over again. I should also note that the red standby LED flickers a little (it doesn't turn off, just dims occasionally).

So, does anybody have an ideas as to what this latest issue is?

[mmartell]

Re: Viewsonic N3252W Power Issues

Replace ALL caps in the secondary - those that haven't failed are probably in the process of doing so. Then it might not hurt to replace the smaller ones in the primary while your at.

[nomoresonys]

Re: Viewsonic N3252W Power Issues

yep, they don't have to bulge to be bad.

[selldoor]

Re: Viewsonic N3252W Power Issues

You should be using good quality caps from a known good seller - radioshack ones are generally not up to it.
Usually recommend panasonic FR FM & FC in that order (not all sizes are available in all series.

[thrallking]

Re: Viewsonic N3252W Power Issues

So just to clarify, you think my problem may still be capacitor related? Assuming the problem continues after replacing all of the caps on the power supply, are there any other components on that board that could be the culprit with these symptoms?