That was one of the 1st things I checked. This is a tempature related
problem possiably caused a incorrect voltage, causing T Chip to run
hoter than normal. The 1st one I got in I even changed thr T Chip to
no avail. Glueing a heat sync helps but not a cure (on T Chip)
However a small computer power supply fan will keep it cool enough.
Another shop in town tried this several months ago & set has not been
back. I appreciate any suggestions I can get on this