Question about Fujitsu Plasmavision PDS-4233 42 in. Television

1 Answer

Screen goes off repeatedly

I have a 5-year old Fujitsu 42" Plasmavision. It will often go dark, and the red light start to flash. I tried unplugging it, and I heard some kind of relay trip after a couple of seconds. I plugged it back in, hear the relay or whatever reset twice, then turn on the TV, and it works. Sometimes that's it, other times, I go through this 5 or 10 times. Power is from the NYC grid, smooth and constant.

Any ideas?

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  • mikeoffit Nov 23, 2008

    Thanks! I figured it was something in that neighborhood... is it possible that as the TV gets warm fromrunning the board functions better? Seems wierd. These days, might be cheaper to buy a new TV!

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  • Fujitsu Master
  • 19,396 Answers

Often you get this kind of problems when one of the sustain boards is faulty, the TV must be tested .

Posted on Nov 23, 2008

  • Ginko
    Ginko Nov 23, 2008

    If the picture goes dark then one of the sustain boards is defective.

    the technician must perform 3 test on a Sus board, test an on board fuse/resistor, test an IC and test the board voltages, this is not a job for a beginner.

    You can try doing it yourself, at your risk, in this case you replace the whole Ysus Zsus Kit without testing, relying on the fact that intermittent dark picture is usually symptom of a faulty sustain board.

    The best option is probably calling the phone number listed on the owner manual and asking the cost of a repair or contacting a local repairer and mentioning the dark picture, he will surely address the Sus boards.





  • Ginko
    Ginko Nov 23, 2008

    More on your problem, the kind of relay trip after a couple of seconds is a protection switch that is activated when a fault is detected.

    By leaving the TV unplugged you drain power completely, and the defective component restart working, until it fails again.

    Try leaving TV unplugged for longer and see if this can sort out the problem. If not follow the indications given on previous comment and get it repaired.




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