A friend of mine routinely had to crack open his TRS-80 PSU's. He did this
with some care, but mostly a plastic mallet and a chisel. Once the deed
was done, he used MEK to glue the case back together. This seemed to me
like a lot of trouble. I'd put in an externally accessible fuse holder
arrangement of some sort so I didn't have to do this more than once.
Dick
----- Original Message -----
From: Fred Cisin (XenoSoft) <cisin_at_xenosoft.com>
To: <classiccmp_at_classiccmp.org>
Sent: Sunday, May 21, 2000 10:24 AM
Subject: TRS-80 Model 1 Power supply (was: Warning: Most of DejaNews
> On Sat, 20 May 2000, Earl Evans wrote:
> > BTW, anyone have a spare TRS-80 Model 1 power supply hanging around?
:-)
> > Or, could tell me how to build/repair one?
>
> The good news is that MOST (but certainly not ALL) problems with the model
> 1 power supply are nothing more than a blown fuse! All that is usually
> needed is to solder in a new fuse.
>
> The bad news is that the case is glued together.
>
> Fortunately the glued joint tends to be substqantially weaker than the
> rest of the case.
>
> Although some, such as Tony, might have a much better way to open the
> case, brute force will usually do. Swinging it by the cord (now I'm SURE
> that Tony would have a better way :-), slam it down onto a carpeted floor.
> Gradually increase the level of violence until it cracks open, without
> getting rough enough to shatter it all over the place.
>
> Solder in a new fuse, and glue the case back together.
>
>
> A Dremel saw might do the job, but this is the technique that we used at
> the 6th? West Coast Computer Faire to repair half a dozen of them. (Show
> management insisted that there was NOTHING WRONG with the power provided)
>
>
> I sold some of my model 1 stuff at VCF, and Eric got most of the rest.
>
> --
> Grumpy Ol' Fred cisin_at_xenosoft.com
> <A HREF= "http://www.xenosoft.com/dogears" >DogEars</A>
>
Received on Sun May 21 2000 - 17:10:32 BST