From Tim P (UK)
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Yes, I discovered this trick when I removed the four screws in the base of
aTM502A, and the entire PSU slid out and landed in my lap !
Someone on this group published a photo of a setup using a small board to
'chock' the plug-in, and a couple of the guide rails to ensure a good
contact with the board connector.
On Sat, 20 Feb 2021 at 21:36, walter shawlee <firstname.lastname@example.org> wrote:
I just want to mention again that all the issues raised with regard to
module extenders are important,
and no matter which route you go, the result is always a bit sub-optimal,
and awkward on the bench
The magic answer is just to take a TM502A apart, removing the blue outer
shell. What's left is a compact dual connector power supply (complete with
power switch + line connector), and total access to the module under test.
This is the simplest, easiest, and most trouble free way to work on a TM500
plug in, and takes up the least possible bench space. I highly recommend
this path over all others. A similar trick is possible with a TM5003 for
the TM5000 modules, but it's certainly bigger.
I should point out that I did not move to this approach until long after I
already had many extenders, and it's only this specific frame that yields
such good results. In any case, it is a magical fix, full of test bench
Test plug-ins to validate the frame are still needed, and you may still
want to extend a plug in from a specific frame, so that's the best case for
All the best,
walter (walter2 -at- sphere.bc.ca)