21 May
2000
21 May
'00
2:08 p.m.
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(a)p850ug1.demon.co.uk>
To: <classiccmp(a)classiccmp.org>
Sent: Sunday, May 21, 2000 11:42 AM
Subject: Re: TRS-80 Model 1 Power supply (was: Warning: Most of DejaNews
provided)
[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
Let me guess.... The neutral (mains midpoint) connection was all over the
place.
-tony