[comp.sys.apple] //e supply can't get it up

mjr@hpcvca.CV.HP.COM (Mark Reed) (08/17/89)

I just acquired an Apple //e system that has a problem.  It seems that the
power supply can't hack the initial load when it is first turned on.  If I
disconnect the supply and then turn it on, it works.  I can even plug the
connector into the board and run the system. 

Does anyone have any experience fixing this problem.  I'm willing to tackle
the supply, but without schematics, I'd rather just benefit from someone
else's experience.  (Alternatively, anyone have schematics?)

email preferred.

Thanks!

Mark Reed  mjr@cv.hp.com   or  anywhere!hplabs!hpcvca!mjr

sb@pro-generic.cts.com (Stephen Brown) (08/27/89)

Network Comment: to #4197 by hp-pcd!hpcvca!mjr@hplabs.hp.com

I had an Apple IIe power supply with exactly the same symptoms. After
scratching my head about it for the longest time, I found the problem was a
defective hi-voltage capactor connected across a winding of the main
transformer.  Schematics for the Apple Power Supply are available in the Sams
Photofacts for the Apple IIe. Highly reccommended!

UUCP: crash!pro-generic!sb
ARPA: crash!pro-generic!sb@nosc.mil
INET: sb@pro-generic.cts.com