Update: TRS-80 Model 1 Power supply (was: Warning: Most of DejaNews
Hi folks,
Well, this power supply is plastic, but has four screws holding it together.
It wasn't obvious, because the screwholes were mounted underneath the rubber
feet (which I had to pull off). I discovered this after being somewhat
brutal with the power supply...hope I didn't destroy it in the effort to
open it. Well, transformers are tough devices :-)
All who guessed it was the fuse...bingo! The fuse is indeed out to lunch.
I'm off to Fry's to get a new fuse. I'll solder it in, and report back with
the results...
- Earl
----- Original Message -----
From: "Tony Duell" <ard_at_p850ug1.demon.co.uk>
To: <classiccmp_at_classiccmp.org>
Sent: Sunday, May 21, 2000 11:42 AM
Subject: Re: TRS-80 Model 1 Power supply (was: Warning: Most of DejaNews
> [TRS-80 Model 1 PSUs]
>
> > 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
>
> Oh, I like it :-)....
>
> I normally use the knife blade on my Leatherman and run it carefully
> round the seam between the 2 parts of the case. Then crack the case
> apart. Or at least that's how I open up most 'sealed' AC adapters. As I
> mentioned in my other posting, the UK model 1 PSUs are in metal cases and
> have 4 screws holding them together ;-)
>
> > 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
>
> I like it......
>
> > management insisted that there was NOTHING WRONG with the power
provided)
>
> Let me guess.... The neutral (mains midpoint) connection was all over the
> place.
>
> -tony
>
Received on Sun May 21 2000 - 18:08:35 BST
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