Posts: 265
Threads: 29
Joined: Jan 1970
Hi John,
Definitely dirty switch contacts, I've seen that a lot. I use isopropyl alcohol soaked gauze to clean them with. You need to carefully thread this under the metal bands and wipe gently. You can also try using dental floss with is much easier to deal with, but doesn't always do the trick.
-Katie
Posts: 1,092
Threads: 57
Joined: May 2007
A real fine (1000 Grit) and very light sanding under the contacts can help a lot, it does not take nor should you use this too much.
Posts: 231
Threads: 51
Joined: Oct 2007
The Isopropanol did the trick. Thanks guys.