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RCA TV turning off automatically

Discussion in 'General Electronics Discussion' started by comogritas, Jan 27, 2011.

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  1. comogritas

    comogritas

    1
    0
    Jan 26, 2011
    I have a RCA TV Model F32650 that turns off automatically as soon as it is power on with the remote or manually. Do not have a clue as to what is causing it. I hoping, I can get some ideas as to what is the part that might be causing the TV to do this. Then go to an electronic part store buy the part and have my son put the part in (weld it, attach it, bolted, etc) Any suggestions will be greatly appreciated. Thank You
     
  2. davenn

    davenn Moderator

    13,589
    1,871
    Sep 5, 2009
    any fuses would be a good place to start

    If you have some GOOD technical ability then with a multimeter you would be able to check for some of the low voltage rails and see if they are correct.

    the causes could be many... fuses, capacitors, line output transformer, horizontal drive transistor....

    if you or your son dont have experience servicing TV's, then you need to consider the cost of a replacement compared to the cost of getting that one repaired by a qualified service centre :)

    Dave
     
  3. shrtrnd

    shrtrnd

    3,734
    478
    Jan 15, 2010
    You probably have a cirucit problem.
    But one experience I had, was the on-off push/button on the TV itself, sticking 'IN'.
    The plastic push-button itself had become wobbly on the switch shaft, and the plastic
    housing of the TV chassis, was sometimes keeping the push-button from completely
    disengaging (to allow the set to turn 'on').
    Just something to check.
     
  4. sall

    sall

    51
    0
    Jan 29, 2010
    I have cheap APEX 19" flat screen that had the same issues. I did a little research and came across a fix. There was bloated and failed 1000uf capacitor. Removed and replaced and fires up good now.

    Open it up and have a look around. Here is where mine was at fault:

    [​IMG]

    Hope this may help!

    This may help as well and is model specific..

    http://www.videokarma.org/archive/index.php/t-205389.html
     
    Last edited: Jan 29, 2011
  5. davenn

    davenn Moderator

    13,589
    1,871
    Sep 5, 2009
    did you replace only one or both of those caps either side of the choke ?
    BOTH of them have bulging tops :)

    Dave
     
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