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

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I have a sylvania 6842pf m that won't stay on , unplugged for 10 minutes, re-started it did stay on for 10 seconds, then went into standby. any help?

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  • tisubrady Feb 26, 2009

    no there was snow, because the input was off. It was a bright picturte all snow

  • Devon Sacco
    Devon Sacco May 11, 2010

    When it stayed on for 10secs, did the picture look darker at a curtain level of the screen?

    Like the top was darker than the bottom.

×

3 Suggested Answers

zexxal
  • 11 Answers

SOURCE: Parts

You can find a replacement Capacitor at any local Radio Shack. Just ask them for a 50 Watt Capacitor and they will give you a box of 2 for like $1.45

0.047µF 50V Hi-Q Ceramic Disc Capacitor Pk/2

Link to Item

If the above link does not work, add this to your browser:

http://www.radioshack.com/product/index.jsp?productId=2062364&cp=&pg=1&sr=1&retainProdsInSession=1&origkw=capacitor&kw=capacitor&numProdsPerPage=100&parentPage=search


You will see the blown capacitor once you open up the back of the unit. It is over to the top left side of the unit.

Here is a link for some basic soldering instructions for circut boards.

http://www.popularmechanics.com/blogs/automotive_news/4213423.html

Hope this helps out. Good Luck. Let me know if you need any additional assistance.

Zexxal

Posted on Nov 14, 2007

  • 1 Answer

SOURCE: sylvania 6842pf m after i power on inmedialty power off (stamby)

These sets are manufactured by Funai, in my opinion total junk, yet they command a $1,500 price tag. I cannot find parts available for this hunk of **** anywhere so if this tip helps you fix this set and get it out of your hair, God Bless You! Model number is followed by an M to read: 6842PF M Found no VSUS on connector CN2502 of the SMPS. VSUS was shorted to adjacent GND pin by 120 Ohms. Small high voltage blue capacitor C2250 (Between Two very big electrolytics and right next VSUS diode D2250 (TO-220 package) on aluminum heatsink) shorted, burned. I have two of these sets in the shop at the same time, both of them have the very same problem, appears to be common and parts seem to be NLA for this unit. Replace C2250, 1,500 pF @ 1Kv. Usually marked as 152K on small high voltage capacitors in junk units. This is not a common value part so if you have to, make one by parallelling a .001 uF cap (102) with a 470 pF cap (471) to get a suitable 1,470 pF capacitor at 1 Kv. Adjust VSUS with VR2250 on SMPS board to read 175 VDC to GND and you are done. You're welcome. ~Ohmster

Posted on May 21, 2008

jtrag
  • 112 Answers

SOURCE: Sony Trinitron won't turn on, Standby/Timer light now blinks 2x

If you unplug it for more than 30 minutes and it still doesn't work, I highly doubt that leaving it overnight will make a difference. The TV tube/screen itself can hold a charge for a LONG time, but the rest of the electronics in the television should lose their charge which will cause most things on the television to reset.

If unplugging it for more than 30 minutes doesn't help, you may have to get the television serviced.

Sony makes some great stuff, but sometimes there's problems just like any other electronics.

Good luck!

-James

Posted on Jul 21, 2009

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Sylvania 6842pf m after i power on inmedialty power off (stamby)


These sets are manufactured by Funai, in my opinion total junk, yet they command a $1,500 price tag. I cannot find parts available for this hunk of **** anywhere so if this tip helps you fix this set and get it out of your hair, God Bless You! Model number is followed by an M to read: 6842PF M Found no VSUS on connector CN2502 of the SMPS. VSUS was shorted to adjacent GND pin by 120 Ohms. Small high voltage blue capacitor C2250 (Between Two very big electrolytics and right next VSUS diode D2250 (TO-220 package) on aluminum heatsink) shorted, burned. I have two of these sets in the shop at the same time, both of them have the very same problem, appears to be common and parts seem to be NLA for this unit. Replace C2250, 1,500 pF @ 1Kv. Usually marked as 152K on small high voltage capacitors in junk units. This is not a common value part so if you have to, make one by parallelling a .001 uF cap (102) with a 470 pF cap (471) to get a suitable 1,470 pF capacitor at 1 Kv. Adjust VSUS with VR2250 on SMPS board to read 175 VDC to GND and you are done. You're welcome. ~Ohmster

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Guess what you may have hit the nail on the head. Plasma TV used a balast type power system for the backlighting and that is what you are hearing. I would suggest getting this set looked at to see if the plasma excitor needs to be replaced (it may have another name in this brand of set).

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