I have an RCA CTC130 and color does not come in on ch 3 and 5. Any thoughts?
You did not state if you are using direct broadcast or cable hookup. First thing I would check is to substitute the tuner if available. Supply NTSC standard signals to the RF input and see if colour is present. If so suspect shifted frequency signals from CATV source. AFT circuit may be to tight to lock onto centre of channel allowing proper reception. Also, read section 12.1 of Sam Goldwasser’s TV Repair FAQ at http://www.anatekcorp.com/articles.htm.