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Have no power

Tv cut off changed fuse in plug still no power

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Check and replace damaged component/s at it main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis.

Posted on Apr 19, 2014

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Posted on Jan 02, 2017

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1 Answer

After power cut panasonic viera flat screen tv wont turn on


check fuse on meter board isnt blown.or easir plug another applience in the socket the tv is using. If it works then your tv is most likly damaged from a voltage surge, which can happen from power cuts.

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Possibly you've had a power cut & a fuse associated with the TV has blown. Have you checked the fuse in the TV plug? If that's ok then probably a fuse internally in the TV has blown or something more serious has blown in the power supply

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My electric went off yesterday and when it went back on my tv wouldnt turn on it was working fine before the power cut we have changed the fuse but still nothing is there anyway i can reset it to make it...


you said you changed the fuse. (inside the tv)double check to see if its blown agian if not. keep it unplugged for about 20 minutes to reset the surge protector onboard . if you have done all that the fuse didnt protect your tv from the surge and it gone. IF ITS CONNECTED TO A SURGE PROTECTOR unplug it from that and plug directly into the wall TRY THAT FIRST let me know if this works.

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Following a power cut my tv has no power, have changed the fuse, checked and used another proven working plug and still no power .. Is this tv repairable ?


Sounds like the power supply has copped a mains-borne surge. Replacing the fuse doesn't always fix it unfortunately. The cost to repair the switchmode PSU depends on how many components have been affected within it and the extent of the damage as a result of the surge. If the damage is serious, for example burn marks/large cracks on the board, and the optocoupler is destroyed, the whole set would be uneconomical to repair.

You can never predict when or where a power surge is likely to strike.

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1 Answer

We had a power cut while watching the tv when power came back on it did not work we have changed the fuse in the plug but it still wont work


You make no mention of the brand or even type of tv you have, but i'm guessing from "flat panel" that it's an LCD tv. If that's the case then you could possibly have had enough of a power surge when the power came back on that it damaged the power supply. Take a look at the power supply board to see if there are any electrolytic capacitors that have the top of them blown open or puffed up.

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There is a fuse in tvs I've had to change one myself

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Hi,

It can be the problem voltage variation. The mother board might have some problem. Please check the motherboard for any burnt parts. If there are changing is the only option.

Thanks

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1 Answer

My tv did not come back on after a power cut could it be the fuse


Good Day;
After a power outage it is best to 'reboot' the TV. Unplug the TV for 4-5 minutes from a/c outlet, wait, plug back in. Did not work?
It could be the main fuse, it will be located near the a/c cord on the TV's board. CATION!! After removing back of unit make sure the TV is unplugged from the a/c outlet and the fuse will be a glass fuse, ensure that it the correct value eg; 5 amp 250v.
Good Luck and Careful, Big Irish.

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2 Answers

TV Won'T Turn On


A fuse is not your problem. this TV has a safty feture that when it senses a problem it cuts the power to prevent any fouther damage, when you un plug it the TV resets and it will turn on agian. I have the same TV Check the CRT light guns there are 3 of them. If one goes bad it will cause your problem.

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