Question about Fisher PC-25R20 25" TV

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Intermittent shut off

I have a 20 year old fisher 25" tv and it shuts itself off randomly. If I unplug it, it will stay on a few hours, but after a while it will shut off every 5 minutes

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20 years is too long and the components ternmial might be loose or crack at this time, I'll susgest you look for any dry cold solder on the main board and do resoldering to the components terminal.

Posted on Dec 01, 2008

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Just shut off and now no power going to it., unplugged and try powering it up with button on tv not remote and still nothing.


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Jan 05, 2016 | Televison & Video

1 Answer

Older-model Toshiba TV shuts off by itself


There is a large sand filled resistor on the main board close to where the power cord attaches that cracks. This will stop power until it cools enough to make the connection then heats up rapidly to open it again. It may be worth the trouble if you're handy with a soldering gun and can get the back off the TV. If not then I'd consider getting a flat screen.

Aug 21, 2014 | Televison & Video

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I have a Fujitsu 42'' PDS4221 - 10 years old - shuts itself off


See Fixya tips and tricks:-
'Fujitsu Plasma 42" random shutdown - continuous flashing red'

While the model of your set is slightly different, the checks described generally still apply, as it is very similar.

Nov 18, 2009 | Cars & Trucks

1 Answer

Unit shuts down after 25 minutes


I had a similar problem with my Phillips 42 in. LCD HD TV.

Here's the problem. The Power Supply Board. I opened my TV up(warranty was up of course) and found several bad capacitors. Phillips and several other companies were sold capacitors that although were highly rated failed within 5 years because of a lack of preservatives. All sorts of electronic equipment is now being effected due to these defective capacitors.
Solutions?
1. Take it in and have it fixed
2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
3. Remove PSB, remove faulty capacitors and replace with compatible new ones.

Hope this helps

Jun 30, 2009 | Samsung LN32A550 32 in. LCD TV

1 Answer

TV shuts itself off. ON/OFF switch no longer works.


If your sure the switch is broken, you can remove the switch and directly attach the wires and plug and unplug to turn it off and on. But it sound like that if the switch is broken you have a slight connection and with an ajar it will turn off and on by itself. The good thing to do would be to purchase a push button switch at your local electronics store for between $1.25 to $10.00 depending on what one you would like to have.
if it is remote control you could have what they call a sliver on the circut board to that can cause this to make the tv turn off and on. Best way to check this is to take the remote batteries out and see if the tv still turns off and on. If so replace the switch.

May 07, 2009 | JVC Televison & Video

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Shut off itself


sounds like you might have an auto overvoltage shutdown circuit kicking in. The hivoltage goes to high and the monitoring circuit auto shuts down. More than likely trouble is in hivoltage circuitry. If you have a transformer that will allow you to bring up the set slowly without shutting down and you can look to see what's happening.

Feb 16, 2009 | Sharp 25R-S100 25" TV

1 Answer

Fisher tv monitor intermittently turns to snow and loud buzzing


Could it be vertical IC loose connection. It is sometimes connected with correct tuning. Check it for crack or wiggling connection best is to resolder.


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Toshiba TV/DVD combo turns on then off again.


try letting it sit for 15-20 minutes unplugged from the wall and maybe try another outlet depending on if u got plugged in to a power strip, possibly pulling to much power from that perticular outlet.

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1 Answer

Shutting off and on...


the problem may be due to dry soldering in the power supply stage if it was with the lamp there would be red or green light showing the presence of the power to the tv after making it own some of the components get hot and it will make the the soldering point conectionless and after some time the heat sink get cooled and the soldering point gets connected and u will see the picture again it is a simple problem if u have a soldering iron u make it hot and re solder all the components in the first part of the circuit board and the problem if rectified

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