Not helpful. TVs are no more complicated than PCs. There should be simple self help remedies provided, rather than pay $200 for an alcohol wipe, or some such!
Could be a loose power button or problem with relay/circuitry. Recommend you get a professional to take a look.
Also try a hard reset:
Unplug from mains, remove all cabling from TV. Wait 10 mins. After 10-15mins, hold down the power button and replug TV to mains. Now redo all cabling and try powering on the TV.
Should it still not work, you'll have to call in a pro..
ADJUSTMENT
1. Turn on the power switch while holding down the start/stop button, backtack button, and
NP button simultaneously.
2. While holding down the start button, press the + positions 1, 2, 3, 4 and 5 on the screen in
order. If the buzzer sounds once when 5 is pressed, the position is okay. If the buzzer
sounds several times, the position is erroneous; therefore, adjust again. (When pressing
the screen, use a pencil (or match) with a round tip.)
3. Turn on the power again, and confirm that the screen display and touch panel positions
match.
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