Corcomp controller modded?

[+arcadeshopper]

Seems hacked up

 

[RickyDean]

Seems to be a prototype of the CC FDC?

5 minutes ago, arcadeshopper said:

Seems hacked up

 

 

[WhataKowinkydink]

2 minutes ago, RickyDean said:

Seems to be a prototype

Silkscreen does say Rev. C though.

[RickyDean]

3 minutes ago, WhataKowinkydink said:

Silkscreen does say Rev. C though.

A later "Proto"?

[+dhe]

19 minutes ago, arcadeshopper said:

Seems hacked up

Does it work?

 

My memory from the 80's is gone, but I think I remember seeing the chip on the back of the board on a corcomp controller before, this only stands out, because I'd never seen that thing done before (and haven't seen it a lot since).   My thought was - what the heck is a component doing on the solder side! 😃

[RickyDean]

5 minutes ago, dhe said:

Does it work?

 

My memory from the 80's is gone, but I think I remember seeing the chip on the back of the board on a corcomp controller before, this only stands out, because I'd never seen that thing done before (and haven't seen it a lot since).   My thought was - what the heck is a component doing on the solder side! 😃

That is the Ram chip, which means that it was placed on the unit as an afterthought since it is in the back. Most production CC's had them in the front.

 

 

 

[WhataKowinkydink]

16 minutes ago, RickyDean said:

A later "Proto"?

Yeah - I suppose it could be that too 😁

[+arcadeshopper]

It does not work no motor enable when I access the drives..  same cable and drives work with a TI controller 

 

Also all the stickers on the chips except for the ROMs look done later and almost all the sockets are machine sockets. I don't think corcomps came with machine sockets. Have to look at another one

[RickyDean]

38 minutes ago, arcadeshopper said:

It does not work no motor enable when I access the drives..  same cable and drives work with a TI controller 

 

Also all the stickers on the chips except for the ROMs look done later and almost all the sockets are machine sockets. I don't think corcomps came with machine sockets. Have to look at another one

It could have been used to test things out, quick removal of IC's and such. It also could have been upgraded by a previous owner with the tooled sockets, same principle I'm doing on mine. But I believe it is a preproduction Corcomp.

[+Ksarul]

This is a somewhat regular modification to Rev C CorComp boards. Here's a picture of another one, also modded extensively.

[+dhe]

CKT - Designer, or real old computer company name?

[+FALCOR4]

7 hours ago, Ksarul said:

This is a somewhat regular modification to Rev C CorComp boards. Here's a picture of another one, also modded extensively.

 

Were there four versions of this controller?

[+Ksarul]

There are at least two variants in the wild using 2793 chips, and two more using the 1773 chips, so that would definitely result in a total of four versions of the board. You could count a potential fifth variant, the 1793 board with the 1773 daughter board on it. . .