880-107 1k static memory board

[benalford]

Marty:

Thanks for the advice. I did check the IC data sheet before I tried anything. I don't do a smoke test.

Since I found the error on the memory board I checked the CPU board and found ICK pin 12 to be tied to ground. The schematic shows pin 12 to be connected to ICK pin 11.

The collector of CS4410 is connected to +5 through R28 instead of being in series with R26.

I also found Jumper J1 on 8800 D/C Board dead ends at the bottom left corner. Was J1 for future use?

Thanks

Ben