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Look at the input or video select button. Change it once and attempt to change channels, if the problem persists continue to change the input selection until you can select channels.
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My tv will not turn on. We had been away for a week and no power interuption at home. We have unpluged the tv for short and long periods of time . We we attempt to turn the power on it cuts off by itself.
I have seen some RCA TV's with this problem and it has usually been a switch going bad on the keypad of the tv. This can be confirmed by disconnecting the plug from the control panel to the main chassis.If you are lucky, and the ir rcvr for the remote is not on the control board, you can still control tv with the remote.Good luck.
Unplug the TV for 4 hours or more. This is called a 'Hard Reset'. Then plug it back in, turn it on and let the TV do it's thing. It will set itself up. Just follow the TV setup prompts. Guide Plus is a feature on the TV. Much like a TV guide showing all channels, shows, description of shows, times, etc..
Have you checked to see if any of the front panel buttons are depressed and stuck??? this is a big problem these days?? I have also found the infared remote sensor to be bad on some sets that do crazy things all by them selfs.. A funny storry once i had was a customer called me after her mother called some goast finders as her maggy projection set would go on all by itself andf the channels would change and the volume would go up and down all by its self. funny thing I had a set just like thast in the shop at the time with the same problem and I scoped out the output pulse from the infared reciver on the set and that was putting out noise on the data line and caused the set to eratacly do all sorts of weird stuff. get the point?? its a stck button or the remote sensor is bad.