Dittos on Dougs comment. I also ran a ground from tuner - Eprom -
front heat sink. If its cold PC cons lightly tapping the TNR will make it
come & go. RCA tried many fixes including special solder & removing
old solder first. Since the tuner has very close SMD's its dangerous
to do removal. Also if you havnt done it wright down the Eprom
parameters incase they get corrupted for any reason.
73 Zeno
LFOD !