Question about Planar PD42ED 42 in. Plasma Television

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42" Planar Plasma turns off

Our T.V. decided to turn itself off by itself last night and refuses to turn back on. When the power button is pushed, either on the set itself or the controller, it turns on but then immediately turns itself back off - no sound, no picture. This is repeated each time I push the "on" button. Any suggestions on what the issue could be or is the thing just a goner. It's about 4 years old by now. Add'l info: it's actually a computer monitor, but unfortunately I don't have the model number. Any help is appreciated! Thank you

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Re: 42" Planar Plasma turns off - Planar PD42ED 42 in. Plasma Television Flat Panel Televisions

Your power board can cost 120-350

Posted on Sep 27, 2007

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Recently my 42 inch sansui plasma has refused to power up when prompted by remote or pushing the button.This problem began approximately 3 weeks ago.At that time when I attempted to turn it on it stayed on...

I would look for a power supply from or if you can't find then repair the ps, look for bad caps bulging or open and ousing out.

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Tries unplug,replug the tv an hour later might work.But this a temp.fix,must replaced the backlight video board sooner or later.

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the internal overload sensor is engaging to protect the system. The parts cost to replace the faulty board is about $70 But you need the skills to open the tv and change it I recommend you get a professional to do it More expensive of course but a lot safer.

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Samsung pn50a450 plasma TV turned off by itself

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change the c97,c19 and c16 caps below is where I got mines.
Got it from a site called their phone # is 1800-344-4539. The part #s are EF6225-ND you need 1of these, and E6105-ND you need 2 of these, the cost is $16 for all. Let me know how it went.

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It is the power supply. Replace the C97, C19, and C16 Capacitors with 2.2 uF ones.

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