Do you have a loupe or a high-gain magnifying glass? If so, consider inspecting the back of the circuit board of the inverter (if visible).
The more you're describing it, the more it sounds like a fractured solder joint. Or a dry electrolytic capacitor. The former is easy to fix, the latter harder to identify.
A dumb thought
Date: 2010-02-28 01:09 pm (UTC)The more you're describing it, the more it sounds like a fractured solder joint. Or a dry electrolytic capacitor. The former is easy to fix, the latter harder to identify.