[Lowfer] OT - Gentner Phoenix processor info needed

[Andy - KU4XR via Lowfer]

Hi all: 

I have a 1988 Gentner phoenix that has the AMC-2 Revision A - NRSC / Limiter card..
I could really use a manual for this thing, and the almost all knowing google does not 
dig up any meaningful info at all.. Do any of you guys have any info at your disposal
for this box ?? even real world experience comments will be helpful.. I especially need
to know the jumper locations on the AMC-2 card.. They are not marked.. 
Thanks for any help with this box..

73: - Andy , KU4XR