[HoustonHam] Cushman CE 6000 Radio Service Analyzer - help wanted

[Vaclav]

I am getting desperate and ready to junk this heavy box.
I have a Cushman CE 6000 Radio Service Analyzer and I need a schematic or talk to someone who knows something about it or owns one. 
It resets properly , but I just cannot get the processor to work with the control / display panel.
Cushman is out of business. All sources so far fizzed out, save yourself ton of time and please do not bother to Google for it.

Reply only if you own one or know someone for sure who knows something about it.

Thanks for reading.

73 Vaclav AA7EJ