26 Aug
2004
26 Aug
'04
4:18 p.m.
Sure.. And
you'll find that if that fuse blows there are almost
certainly other component fialed as well (most likely the chopper
transistor or one of the mains rectifier diodes).
The question then is why IBM went to the expense of putting a fuse
connector inside the box. A wiretail fuse surely would be at least a slight cost savings. I've never seen that fuse
blown, personally.
Nor have I, actually. Annother curious one is the fuse in the PSU of a
Canon SX Laser printer (HP Laserjet 2, etc). It's in fuse clips at one
end of the PSU board, and is accessible without removing the metal case
from the PSU. Canon don't supply any parts for the
internals of the PSU
(IIRC even the case is not available separtely), there's
no PSU
schemmatic in the official service manual. But the fuse is a listed
spare part. Again, I've never seen it blow.
I don't thionk I've ever seen the fuse in the mains side of an SMPSU blow
unless there were other faults in the PSU.
-tony