Re: samsung 50" plasma wont turn on

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Re: samsung 50" plasma wont turn on

Tom66, your a genius, I have been so concerned with the logic board issue and its oddities, i never thought to try unplugged power to the Y board. I am usually good at narrowing down the problem by trials of deduction.
I unplugged the power to the Y board and the tv clicked on, stayed on, sound also came on but of course no image. The green LED on the logic board was blinking green if that matters.

What is my next step? Unplug just the X board?

Re: samsung 50" plasma wont turn on

ttt

Re: samsung 50" plasma wont turn on

Thank you for your reply, Impressive signature by the way.
here are some pics I just took, I hope my iphone 4s quality is decent enough to help you help me.

I do have a multimeter (digital) and I know (mostly) how to use it

The third, fourth and fifth pics are pictures of components that have already been replaced and made no difference to the issue in my original post.

Pictures left to right are the whole tv, unknown board, power board, logic board, main board and another unknown board (z or...

This is a Samsung 50" PN50C450 plasma tv.
These are its symptoms, it just suddenly turned off. When plugged into the wall, you can hear the relay clicking on and off five times before it stops and nothing else happens, no picture and no audio.
After removing the cover on the back of the TV, when plugged in, I can hear the relay on the power board clicking on and off, about one second intervals. Each time it clicks on, the green led on the logic board lights up, then the relay clicks again and the light turns off, repeat x5 before it remains off.
If I unplug the...

Re: New Members - please post your introductions here

Hello, new here! I am still familiarizing myself with electronics. However, I have done many electronic repairs and pc builds for myself and others including cellphone and television repairs. I am not the best at diagnosing problems but I can usually figure out which part is bad by matter of deduction. I did register on this site to ask about a certain television repair that I am stumped on. I will post a topic when I am approved, Thanks!