Question about Sylvania 6842-PEM 42 in. EDTV-Ready Plasma Television

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Hi I have a sylvania 6842pem 42 inch plasma. when turning the television on it makes a weird screeching noise then goes to stand by. what can the problem be thanks for the help

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  • jloussia Jan 12, 2009

    is it something i can change on my own and were can i find the part

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Your transformer on your power supply is bad, i would recomend replacing the power supply, usually when the transformer goes bad , it damages other things on the board, should be around a 200$ part

Posted on Jan 11, 2009

  • Fred Haines Jan 12, 2009

    you can replace it yourself, about 6 connectors, and 6 screws, after you get the back off, you should to be able to order it through there website

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When i turn my 42 inch plasma sylvania on, it makes a sharp high pitched squeal, then shuts off. it does this repeatedly, whats the problem, and how do i fix it?


You have a short on one of the drive boards making the power supply squeal. You will have to unplug each board until the squeal is no longer there. Which ever board it is will have to be replaced. Thanks for using fixya.

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Jul 20, 2009 | Sylvania 6842-PEM 42 in. EDTV-Ready Plasma...

1 Answer

SYLVANIA 42 INCH 6842PEM DOES NOT TURN ON


The most likely the TV has a power supply related problem. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
I can't say it's 100% the problem because I can't actually look at the tv over the internet.
If by chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.

Jun 27, 2009 | Sylvania 6842-PEM 42 in. EDTV-Ready Plasma...

1 Answer

Hi i have a 42'' 42'' sylvania pla model 6842 pf m and have a bli


if stand-by voltages are good, you probably have bad inverter board. could be one or two depending on unit

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1 Answer

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No. They are entirely different. Panasonic was the supplier of the 6842PE and Funai was the supplier of the 6842PEM.

Oct 18, 2008 | Sylvania 6842PE 42 in. HD-Ready Plasma...

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when i turn the t.v on it switches back off. to standby mode.it also makes a little glitchy sound after it has turnd itself off.
what do i do?

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2 Answers

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I had the same issue. Turned out to be a blown capacitor on the power board.
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Jun 15, 2008 | Sylvania 6842-PEM 42 in. EDTV-Ready Plasma...

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It happened to me.. a FAx to Enrique. in California.

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1 Answer

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