"Mark D. Zacharias" wrote in message
...

wrote in message
ups.com...
Ok, one step closer. I replaced the two 10,000uf 71v power supply
caps with two 12,000uf 80v caps I had and now the fuse does NOT blow
when I push the power button. But, I hear a relay click and the unit
does still not power up.



Sounds like the emitter resistor has now failed, so the fuse no longer
blows...

Mark Z.

Of course, you could have a shorted filter cap, but this would be pretty
unusual on a newer unit.

mz