The tv when first turned on from cold e.g. overnight will not turn on. The red standby light begins pulsing and a high pitch whine is heard. It seems to originate from the main board. The back light remains off.
If the tv is left trying to boot like this then turned off and on again it will turn on fully functional. If it is turned off after this and turned on again it may or may not boot up.
The power board has been replaced in the hope it was the capacitors but it did not fix or change the problem.
The firmware has been updated to the most recent...
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