Question about Zenith Z50P3 50 in. Plasma TV

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I have a zenith plasma tv 50pc3db-ue flatscreen tv and when I hit the power button it goes green then back to red. I believe it is the relay switch. Can someone tell me what pannel the relay switch is on and maybe where I could get it for cheap. I bought one other pannel that's on the right side and replaced it but it must not have been where the relay switch was. Help of where the relay switch is would be greatly appreciated!

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Power supply is the big board at the top middle, but a short on any board could do what you are describing, You need a Digital volt meter to trobleshoot further, look for popped or bulged capacitors or shorted components before purchasing more boards. Also look at Y-sus, Y Drivers (big board on the left 2 skinny boards.

Posted on Feb 17, 2014

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Posted on Jan 02, 2017

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SOURCE: Very noisy fan on a Zenith 50" Plasma (Model 50PC3DB-UE). Should I replace the power supply or just a fan?

if it has only one fan, replace that but look to see if fan dusty or not.

I have seen ones with two identical fans and one made noise and the other did not, swapped them and then knew for sure which was the bad one, in that case better to replace both fans at same time.

Posted on Dec 19, 2012

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