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Old 16th Sep 2020, 11:51 pm   #38
Buzby123
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Join Date: Oct 2011
Location: Culcheth, Cheshire, UK.
Posts: 346
Default Re: I found it !. A very sorry looking MK14

I've started on waking Micky from his 40 year hibernation.

Because there is no easy access to the main board while it is in the case, I've taken it out and will work on it with no keyboard or display. I should be able to check enough signals with my scope to see if it is working.

When I was looking at the edge connector I noticed that Pin 8 was not connected to 0v, it is connected to NADS.

My board has 'MK 14 ISSUE II' printed in the copper, so I think it is an issue 2. But edge pin 8 connected to NADS is an issue 3 feature, according to the manual posted earlier.

I don't think this will make much difference to my task. I've hacked the board so much that it won't match any drawing that SOC produced !.


One question, are the PROMs likely to be OK ?

Cheers,

Buzby
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