help with rca

[sampson159]

i have a rca atc 113b 27" screen. set has a chattering noise when it is plugged in.set does not work at all. it was taken to a repair shop and the h o t was replaced with no effect.tech said transformer was bad and repair would be 200.00.chatter seems to be coming from regulator area and a resistor beside transistor looks discolored.this is beyond my range of technology and would like some help! thanks