13 Jun
2005
13 Jun
'05
2:48 p.m.
I've got a couple IBM PC Convertibles that exhibit the same problem with
their power supply. When I press the power button (which is a momentary
switch) it turns on briefly: the disk drive light goes on and the drive
starts to spin or the display shows brief activity, but in either case for
only about a tenth of a second. Sometimes if I hold the switch just right
I can get it to make it through the entire memory test and up to the point
Is this switch on a PCB (like the PSU PCB)? If so, 'holding the switch
just rignt' might be flexing the board just right to cure a cracked track
or dry joint.
This does sound like a mechanical problem, a bad connection, something
like that.
-tony