Does the power indicator blink when the set shuts down? If so thats an error code let me know the number of blinks and I will assist with the reason why the set is shutting down.
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: when I was watching TV
When tv it shutting itself off by it own does the tv power LED light indication flashes?Tv turn on now,the tv power light indication,just flashes?Yes,than ur tv power supply board is the causes and the problems.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
SOURCE: We have a Sony Bravia XBR HD LCD tv - model KDL
You've got a board going bad - most likely caused by an overheating diode or capacitor. It's going to require a service visit.
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