Dodgy IBM PC Convertible power supply

[Tony Duell]

> Yes, I did this.  I can short the two leads of the switch but I get the
> same symptoms.  There's something wrong with the electronics.

When you say the 'same symptoms', what do you have to press/hold just 
right for it to work?

Assuming this is an electronic problem, I would first test all the 
electrolytics on an ESR meter. High-ESR capacitors cause the most odd 
faults on SMPUSs...

-tony