Rca 32 in tv turns on and then off for about 30 seconds then finally off?

i'm not sure how to fix it but i'm sure the problem is in the circuitry behind the control buttons on the unit. i am sitting here with the same tv you have taken apart with the control button unit unplugged. the tv is staying on but i obviously can't change channels or anything. as soon as i plug the control unit back in the tv starts turning on and off again. i'm looking for this part online now, hence how i came across your post.

Mindspin19@aol.com
December 2007