[rescue] How to open a TK50Z-GA?

[Richard]

Take the feet offb&sometimes they also doubled as case securingb&just a
guess BTW

Sent from my iPhone

> On 7 Nov 2021, at 09:32, Mouse <mouse at rodents-montreal.org> wrote:
>
> o;?I've got a DEC TK50Z-GA which appears to be broken.  I offered it FTGH
> here on 2021-09-21 and heard nothing in response.  So I infer nobody's
> interested - which is hardly surprising.
>
> So I wanted to open it up and remove the TK50, turning it into a
> relatively generic SCSI enclosure.  (It's a lunchbox-sized DEC SCSI
> enclosure with a TK50 in it, obviously with brige electronics, with two
> Centronics connectors for SCSI and a three-bit DIP switch for SCSI ID.)
>
> But I can't figure out how to open it.  The top and sides are a piece
> of relatively heavy sheet metal, wrapped around and fastened onto the
> bottom with four screws.  But, upon removing those screws, the metal
> still won't go anywhere; the front and back plastic pieces extend out
> about to the outside surface of that metal, so it can't slide forward
> or backward.  I could just pull the sides apart, bend the metal enough
> to lift it up.  But the metal is heavy enough I suspect that would
> surpass its elastic limit (as in, it wouldn't spring back into shape
> afterwards).  That wouldn't necessarily be a problem - I could still
> fasten it on with the screws - but I can't help feeling there has to be
> a better approach, largely because (if I'm right about the elastic
> limit of the metal) that obviously isn't what was done during
> manufacture or the metal would have sprung outwards as soon as I took
> out the screws.
>
> There are ten other screws visible on the bottom (four holding on the
> feet, four holding what I suspect is the power supply to the base, and
> two holding on a small coverplate that reveals nothing of interest -
> just part of the TK50 proper - when removed.
>
> Any hints?
>
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