I have a 32" RCA TV thats driving me nuts, which is how i found this forum as some searching led me to a few threads here but i didn't really see an answer to my issue.
Its model # L32WD22
Suddenly it started making a loud noise, a high pitched crackling squeal. With my experience i figured time to recap it. I went online and ordered up a batch of caps from Digi-Key, since they are local to me here in MN i use them all the time.
I re-capped the power supply, noise went away and the tv turned back on, awesome! I gave the tv back to a friend of mine that owns it and they used it for about two weeks, then it started acting up again, the squeal was back and it would randomly shut off on its own.
I pulled all the caps i replaced, i have a desoldering station and it takes me a few minutes tops to drop all the caps out. Tested all them with my capacitor checker and they were all within spec. Soldered them back in and the squeal is still there. After hitting the power button and unplugging and plugging the tv in for about ten minutes i finally got it to power up and come on. But there was still a squeal that slowly went away after a while, its working for now but doubt it will last.
So here is what i am thinking, it has to be the 100uf 450v caps on the power supply? Its the only two i didn't change because i couldn't find them, and they tested within spec, 95-98uF on both of them. But as they are the only two i haven't changed, and they are crappy Elite brand caps, i still suspect them.
Would you spend the money to replace them or is it possibly something else?
Its model # L32WD22
Suddenly it started making a loud noise, a high pitched crackling squeal. With my experience i figured time to recap it. I went online and ordered up a batch of caps from Digi-Key, since they are local to me here in MN i use them all the time.
I re-capped the power supply, noise went away and the tv turned back on, awesome! I gave the tv back to a friend of mine that owns it and they used it for about two weeks, then it started acting up again, the squeal was back and it would randomly shut off on its own.
I pulled all the caps i replaced, i have a desoldering station and it takes me a few minutes tops to drop all the caps out. Tested all them with my capacitor checker and they were all within spec. Soldered them back in and the squeal is still there. After hitting the power button and unplugging and plugging the tv in for about ten minutes i finally got it to power up and come on. But there was still a squeal that slowly went away after a while, its working for now but doubt it will last.
So here is what i am thinking, it has to be the 100uf 450v caps on the power supply? Its the only two i didn't change because i couldn't find them, and they tested within spec, 95-98uF on both of them. But as they are the only two i haven't changed, and they are crappy Elite brand caps, i still suspect them.
Would you spend the money to replace them or is it possibly something else?
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