Plasma TV Capacitors....

Discussion in 'General Electronics Chat' started by frontstmaui, Dec 26, 2012.

  1. frontstmaui

    Thread Starter New Member

    Dec 26, 2012
    4
    0
    Easy Question? IDK. I have used the search function in here and read a few threads but it appears to me that the general knowledge level of the grou re: electronics makes me feel like a 1st grader and I didn't consider my self a shmuck.:D:D

    OK. Question. Dis-assembled the rear of my Plasma tv and found the power board. I have been told a bad capacitor will have a rounded or domed top from the overheated insides pushing out. My tv works fine after "Warming Up" for 10 minutes and I was told to check the Caps. All of the caps on all of the boards look OK. How can I tell out of several caps on the power board, which is the one that is going bad? Schematics? Is their one that Tends to be bad. I really don't care to repair them all.

    I am 90% certin this is the power board...

    [​IMG]
     
  2. frontstmaui

    Thread Starter New Member

    Dec 26, 2012
    4
    0
    Here is a pic of the bac of the whole set...

    Sorry about the pic... cell phone....

    [​IMG]
     
  3. frontstmaui

    Thread Starter New Member

    Dec 26, 2012
    4
    0
    Yes, I am a newb and this thread is prolly beneath 98% of you but any help is appreciated... got the thing dismembered in my living room. Have the tools and all the various capacitors I need to replace... Just need to figure out which one!
     
  4. frontstmaui

    Thread Starter New Member

    Dec 26, 2012
    4
    0
    Bump to subscribe to thread after editing profile...
     
  5. debe

    Well-Known Member

    Sep 21, 2010
    946
    184
    If its not obvious then you have 2 choices, 1 replace the lot, 2 use an ESR meter to check the capacitors.
     
  6. PackratKing

    Well-Known Member

    Jul 13, 2008
    850
    215
    Yes, the caps will swell if heated enough. Look also for some variety of goop under the cap, which might indicate that the cap may have just heated enough to eject some electrolyte out the pin-ends rubber plug.
     
    Last edited: Dec 28, 2012
Loading...