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Mains voltages are present in all TV's (unless they have a separate “brick” type psu) so you still need to take precautions when you remove the back cover and smoothing caps which can retain their charge for days are part of every mains psu.
Symptoms that clear after a warm up period are usually (but not always) caused by faulty electrolytic capacitors so some soldering would be required and that would be a cheap fix.
Without soldering experience the only other way to repair it is to identify where the faulty caps are and replace the pcb. On most models the psu is on a separate pcb, on others it's part of the main board.
Once you've located the faulty pcb take note of any parts nos on it and Google them for suppliers.
If you have to source replacement boards that will push the cost up and it may just be better to replace the TV. |
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