28 May
2008
28 May
'08
6:21 p.m.
From: dr.emiel at xs4all.nl
To: cctalk at classiccmp.org
Date: Wed, 28 May 2008 23:12:21 +0200
Subject: RE: Transformer repairs
You could try one of the CBM clubs, there should be someone who has some
spares..
The other option is rewinding the transformer, not the most thrilling
option..
The last i had, was suffering of a bad 9vac transformer that one I replaced
and the PSU was up again.
-RIk
-----Oorspronkelijk bericht-----
Van: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org]
Namens Ade Vickers
Verzonden: woensdag 28 mei 2008 21:20
Aan: 'General Discussion: On-Topic and Off-Topic Posts'
Onderwerp: RE: Transformer repairs
Rik wrote:
Hi Ade
If it is a switcher, it sounds like you don't understand how these work.
Please send a pointer to the schematic you located. We can then talk
about failures in switchers.
Dwight
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Maybe this is some help.
http://www.zimmers.net/commie/docs/sx64.txt
http://www.zimmers.net/anonftp/pub/cbm/schematics/computers/c6
4/sx-64/index.
html
I do have a 22MB pdf file with the schematics, if you got a ftp I'll
upload it.
Hi Rik,
Thanks - I found the schematics via Wikipedia (of all places); and the text
file too (can't remember where that was linked from).
From the description, I think it's the
"+12 volt switcher (2.8 Amps)"
that's
blown; the question is, where the heck would I get one of those from??
Here's the pin-out (from the solder side, heatsink towards you):
240v o o 0v
240v o o 0v
n/c o o 0v o 0v
n/c o o 12v o 12v
0v o o 12v
0v o o 12v