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WARNING- VOLTAGES STORED INSIDE YOUR TV CAN KILL YOU EVEN AFTER ITS BEEN UNPLUGGED FOR DAYS..your problem is in the zero cross detect circuit . youu should take it to a repair facility. -Or replace diode D647 . Or on remote in this order press "display -5- vol down - pwr ." and then you could watch it right now ..kinda
the great thing about sony is you dont need the remote to do menu functions. there is a flip down panel in the front that has the menu, cursers, and select buttons. just select the tab you need in the menu (channels) select the type of input (cable :on/off) then auto program. be sure to have the VCR off so not to program the channel 3 only.
Check the battery if its still good. if not replace with new one. if its still good, open the remote and inspect for loose connection. resolder if necessary. check also for possible crack pcb. good luck!
Just had the TV repaired for the same issue. According to the shop it was a bad channel up/down switch. That impacted the other functions (menu not working, remote malfunction) because they're all intertwined. Only about a $75 fix here in the DC area, so maybe cheaper elsewhere.