Harman Kardon 930 lost channel. Hoe to trouble shoot ?
An infra-red heat gun is better at very close range. It will show variations of fractions of a degree.
Also very good for pinpointing hot-spots. Within a couple of inches, the spread is 1/6" for a standard 12:1 unit. There are narrower devices, but they are comparatively pricey.
Peter Wieck
Melrose Park, PA
|