Sounds like the flyback, (main power provider to the picture tube is shorting, 20,000 plus volts inside so don't go in there thinking you can fix it, it is toast, time for another set
SOURCE: f32650/atc113ca1
This could cause a problem, because modern TVs and most other entertainment electronic goods, have a small kind of computer chip, but there should be a Reset button probably inside the set! If you feel confident about computer chips you may be able to find the button by tracing the circuit.(Disconnected from the mains). Another idea is if there is a small button cell or battery inside, then try disconnecting it for a day. Good Luck!
SOURCE: TV will not turn on when power button is pushed.
check the main fuse in the tv. test it with a multimeter, not visually. if its the thermistor that blew the fuse, it is very difficult to see the break in the wire. replace if blown. if unit blown fuse again withing a couple of weeks replace the thermistor in the degausing circuit. good luck.
SOURCE: Power light does not come on, no picture . Only sound it makes is when i push the power button
make checks in the all power circuits if you are not a tech take it to a repairman
SOURCE: tv won't power on
the flashes are a indication of the actual problem. 5 flashes along with a popping sound is the flyback transformer failing to provide the high voltage necessary to reproduce the image on the screen.
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