These firmware files are from a later version of the 1062 unit and so the MPU board is using 27C32 EPROM instead of the original 2532 design (the IEEE may still be using the TMS2532, as it was in my case)
As a result it has special conversion sockets installed on the board which converts the 27C32 pinout to the 2532 pinout (as can be seen in the photos)

You can build a converter yourself by comparing the pinouts and pin swapping on a pair a piggybacked sockets (pinout difference is shown below), I have done this for a 2532 to 2732 pinout so I could use my EPROM programmer with it.

My Datron repair videos are on YouTube: http://www.youtube.com/user/TheDefpom


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Conversion between a 2532 and 2732 pinout are noted below in case you need to make an adaptor to read/write the 2532 using a 2732 profile on your programmer.

Pins 18,20,21 are affected by the pinout difference.

TMS2532 (IC)  ->  2732 (programmer socket)
----------------------------------------
	21		->		20
	20		->		18
	18		->		21

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MPU Board - Datecode 8th July 1987
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Datron1062_M18_290113/A20_8-7-87_27C32
Datron1062_M30_290057/A20_8-7-87_27C32
Datron1062_M35_290056/A20_8-7-87_27C32

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IEEE Board - Datecode 27th May 1986
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Datron1062_M3_290070A-19_27-5-86_2532


Regards
Scott (aka The Defpom)
TheDefpom.com