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2011 LG 60PZ550 60" Plasma

99.149.238.6

I recently got this 60" plasma tv for free. The problem is when you turn it on, it gives out what I believe is a hi voltage shorting/humming sound for several seconds,then goes back to the red idle light. I've traced the sound to one board, but that might not be it. I used to work as an electronics tech, so I feel comfortable working on it.

So far, this is what I've done.

Checked fuses, none-blown.
d/l the owners and service manuals.

The previous owner had this problem twice, he said that in both times, the shutoff would at first take a while, then get shorter & shorter until it was unusable. First time, a tech told him he replaced a cap, second time he gave the set to me.

PS, I know I can buy a newer set, I like to fix things, and love Plasma and CRT picture quality.

Follow Ups:

Check voltages as Rod M suggested. n/t - tweakmenow 10:35:22 04/06/19 (0)
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RE: 2011 LG 60PZ550 60" Plasma - Rod M 18:29:32 04/02/19 (0)
I've got a similar vintage Samsung plasma and it's a gorgeous picture and likely the same panels.

Check on Youtube or maybe you did. I found some on where to check voltages on different boards. You might find a 'good' board on eBay if you're daring. Or you might find there are no parts.

-Rod
RE: 2011 LG 60PZ550 60" Plasma - Hornlover 07:47:36 04/01/19 (0)
Inspect all of the electrolytics. This is the most common problem on flat panel TVs. Any that are bulging should be replaced.

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