Emax

I'm looking for a IC for my Emax I. I'm 100% sure that this component
is the problem. If I try with a different one from another Emax, it's
working perfect...

The IC is IC7, I think it's the keyboard and keypad scanner
(onechip CPU with ROM and RAM + I/O)

The IC is markt with : (first line) IM368-1 BA, (second line) R1125-11
(third line) only a date code

With the faulty scanner CPU, it boots and loads system, then hangs...

Thanks
/ Karl