Question about Panasonic Televison & Video
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Posted on Jan 02, 2017
when you say flickering??? are you saying the screen goes black and comes back on?? does the sound go out at the same time and comes bag on with the pic ? Is the sound there when this happens but is distorted. Is the pic blacked out or is it greying out with lines and twisting?? Need more info please as if its blacking out and the sound goes with it it may be going into shutdown. If the pic is getting kinda greyish with it twisting and the sound is there and ditorted then the tuner could be bad
Posted on Mar 25, 2006
Your problem im afraid could be one of several things. Power supply problems,sweep supply,horizontal output transistor,standby power supply. The best thing for you to do , if your not a tech, take the set into a reair depot as these are solid state sets and have no user replaceable parts inside. Good Luck
Posted on Aug 28, 2006
Hi there, I have the same model, and I had a simular problem , except my picture shrunk from each side of the screen into concave arc, if you know what I mean. I thought it might be a faulty horozontal output transistor, so I replaced that but did not fix it.
Eventually the picture quality dropped namely it became out of focus and i couldnt refocus it. Then it stopped all together and I heard a ticking sound, which I found was
coming from the line output transformer. A Tech friend told me it was probably a cracked or burnt out HV Capacitor, so checked them all and ofcourse they were all o.k.
So I have come to the conclusion that the Line Output Transformer is faulty, I hope I
am right as they are not cheap.
I think I have the answer to your problem which is a very simple one:
Adjust the "vertical picture height," and it will bring the picture down and fill the bottom of the screen. To do this adjust the VERTICAL CENTER SWITCH by pushing it forward towards the tube , this switch is on Board
TNP 107985 which is located right next to the AV inputs on the back of the TV, the switch is a round white component with a lever on it, and is located on the top of the board, push it to the max forward position, this should help, but might not fix it enough
depending on how much space u have at the bottom. There are no other vertical height adjustments on this Model so it would have to be a faulty component, like a HV
capacitor or burnt out resistor, or not enough HT drive voltage, which suggests dare I
say it--- Line output Transformer, could be wrong though.
Anyway good luck with your problem, hope what I suggested helps.
Posted on Feb 04, 2008
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