Volume goes up and down by itself. Menu goes off by itself. Basically, the TV has a mind of its own and does what it wants.
Thats caused by the small signal board located on the right side of the set ( Green board with the RCA plug inputs on it. Very common issue with that chassis. The board will have a barcode sticker with an as222 number. You can get replacement boards and any part needed for that model from www.tvrepairworld.com
SOURCE: rca hd52w59 powers off / need small signal board?
Deflection/power supply board cost 196.00 - SSB 253.00 has tuner on it--------- power board has Flyback transfomer, Check this board capacitor cp150 2200uf 16 v if it is bad you have 2 more caps in same circuit that need to be replaced also 220uf 35v ,there is 3 caps all together cp150--,cp111 or114-- cp120 call UED for parts 1-800-648-6657
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