You have a faulty main TV board. Not the power supply. replace it.
SOURCE: faulty main pcb board , test cycle showing
as the guest above says do not remove the board there is no fault on it 4 sure good luck
SOURCE: Power Surge damage. Suggestions on which part to replace.
I would start looking at the power supply, it's usually a separate board where the a/c line plugs into. In many cases i have seen that the problem you described is from a damaged power supply, sounds like something is shorting causing the power supply to continuously come on and off. I would first check the capictors to see if any of them have blown, usually cylinder looking and sometimes you'll see an X or a K at the top of the cylinder, if it's blown then the top will be bulging out instead of being flat. If all those look good then there is probably a short somewhere else like in one of the transistors, if so you'd be best to just find another power supply board to replace.
SOURCE: Fujitsu Plasma Screen won't power up
This is most likely caused by the Main Power pcb.
See Fujitsu Service Bulletin on this problem in a similar model from Fujitsu. -see link below
http://tomtom2k5.free.fr/fujitsu/PDP-0035-06.pdf
A competent service technician should be able to implement the service bulletin.
A similar service bulletin is probably available for your model.
Request bulletin from Fujitsu '[email protected]'
SOURCE: Circuit diagram Samsung LE23R88BDX - LCD TV
when I turn off and then Turn on after 10 minutes the TV notwork(by using remote or touch button). I try to disconnect power supply andthen reconnect and waiting a couple of minutes and turn on but no work (nosound and black desktop) .I repeat this procedure many times so some timework and sometimes not work. please help me to solve this problem
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Are the symptoms identified typical of a power supply failure?
I replaced the power supply still have the same issue. Power cycles every 3 seconds or so.
Well, new power supply and main board. Basically no change. When initially plugged in, standby is working but when power button on remote.or TV is pressed same symptom. And unit must be unplugged to reset.
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