>It would be a good idea to open it up, John. Leave the power off and
>look for something obvious. It may be that some crawled in and died
>(you'd be amazed at how often that happens)or something was spilled
>into the unit. Perhaps something has been jostled out of place and is
>now resting against the CRT or some other heat producer. You'd want
>to catch that before it fails.
You definitely want to open it up and take a look. Arthropods are attracted
to the warmth of electronic devices so it could literally be a "bug".
One of my co-workers found a "roach" in a field-strength meter he was
repairing, only this was the hand-rolled kind...
--
Terry Bowman, KA4HJH
"The Mac Doctor"