Dave Dameron <ddameron_at_earthlink.net> wrote:
> >It's probably easier to rewind the transformer than replace it with
> >SMPSUs.
> >
> Yes.
> What are the dimensions of the core? The longest dimension (length
> usually), and the thickness. The height should be 5/6 of the length.
> Hopefully the laminations are not welded together like microwave oven
> transformers. If the voltages checked out without a load, look for a very
> good short somewhere.
> The 5 Amp line fuse didn't blow?
>
> -Dave
Hi All
I was there and yes, the fuse didn't blow yet? When Eric
first came in, he was complaining of too high of a output voltage.
I should have recognized this symptom right off the bat.
This is a definite indication that the primary is failing
some place. When you have shorted turns, it increases the
turns ratio, causing higher output voltage ( his first
symptom). I doubt it is a rectifier short, these usually
smoke quite a bit when they fail because the current is
concentrated in one place. Nothing else was particularly
hot.
Eric, you might try seeing if these guys have a transformer
laying around:
http://www.imsai.net/
Dwight
Received on Mon May 10 1999 - 13:19:30 BST