The tv keeps turning itself off, and then the remote does not work to turn it back on you have to push the button on the tv itself. after you push the button on the tv, the remote works again until it shuts itself down again. you have to keep turning the tv back on for about half an hour or so and then it finally will stay on. what do you think the problem is.
This is due to bad caps read here what a cap is www.badcaps.net see you tv is getting hot as normal but the caps cannot stand it any more thus shutting the tv down. The bad caps would be more or less in the power supply unit of this TV. So you can buy a new psu or get it repaired by a expert.
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620
Sharp smart tv shut down by itself after 5 minutes if it rest a long time. Then shut down after some seconds.
Tv used to shut down by itself after 30min when I bought it as used and i opened big holes on tv cover on behind. then the time delayed up to 3 hours.
But now it shut down after 2 seconds if tv rest 10 hours the time is initially 5 min then 1-5 seconds.
I changed 7 pieces capacitors but nothing changed. The power card number is HLL-4255WJ
And it has 12v and 16v output, 12v is always constant. On 16v output, there is 19v when tv standby, when the tv is working it drop to 17volt.
What is the problem?
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SOURCE: My TV shuts itself down by itself
Agreed, one of the problems is power supply problems, also, overheat protection may also be the cause, make sure the internals are dust free, compressed air works wonders, remove the back cover, blow as much of the dust as you can off of the componants, replace the cover, and see what happens...
NOTE: If you are using a home / shop air compressor, make sure to have a vapor filter to remove any moisture from the air lines. water + electronics = BAD
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