I need a new control panel for my RCA F36669 TV. The channel keeps changing (always down) without anyone pushing buttons. Won't even stay on Video 1 and does the same in Menu.
I pulled the old board and it looks like the part number is 1547266C - at least that's the one I see printed on the circuit board in multiple places. Anyone know where I can get the part to plug it in?
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That's hi voltage arcing. Dangerous condition were a component has broken down and is arcing causing the power supply to 'crowbar' or go into over current protection mode. Call a TV repair pro for an estimate to see if you want to keep the set.
Have you tried to unplug the TV set for a half hour or so? If not see if that helps reset the set. If that does not work, make sure that none of the front panel channels buttons on the front of the TV set is not pushed in and stuck. Or if all this is checked and the TV set still scrolls, there is a problem in the remote sensor, or the front panel board will need to be replaced. Good Luck
The most likely problem is a stuck tact switch, if it goes up in channel number, 5, 6, 7, etc. then the channel up button is stuck, if it counts down it`s obviously the ch. down button. Problem is you have to remove the guts of the set to get at the control boards screws, you can try turning on the set and poke around the offending push button with a tooth-pick, if it stops changing channels leave it alone and use your remote from now on to change channels, if you can`t get it to stop the tact switches or the control board module will have to be swapped out, hope this helps
Customer service at RCA stated that you have to simultaneously push the menu button on the TV and the volume down button on the factory issued remote hold for three seconds and the parental should unlock and allow access again.
The easiest thing to check is if the channel up or down buttons are not pushed in too far forcing the switch to make contact all the time,the other possible reason is some of the cleaning solution or water might have gone down to the buttons and creating a short making the switch active all the time.For this reason you will need the help of a servicer to find you the parts and replace them.Let Us know if you need more information.
ok, let's try the simplest things first....
unplug the tv from the wall, and remove the batteries from the remote. wait about 5 or 10 minutes. reinstall the batteries and plug the tv back in. try it again. actually since you said you tried another remote, you can skip removing the batteries from the remote.
if it still does it, try unplugging the tv overnight. if it still doesn't work right then, you have a processor problem, and need to have it looked at by a service tech.