KY11 - ever debug one?

ERROR!! Sorry. The ASCII pinout is *not* of the console board, but of the M7859! I have the "scribbled" printset with me. You are correct on J1 on the console board, pin #1 is near the edge. Typical (...), in my notes, I have just one comment near the 7442 (on KY-1), saying pin #2 (KY1 STOP L) gets never active ... Is there some info written in the M7859 manual? In the end of that manual is also a source code listing of the 8008 assembler code. Useful, if you put the logic analyser on the databus, to see what the cpu is executing. Perhaps that can explain why you get WAIT. Is the 8008 executing the states you mentioned just once? I don't know the 8008, but what if E16/E17 is defective. Is the 8008 putting out an address, reading data? Is that data correct? - Henk. - Henk. This message and attachment(s) are intended solely for use by the addressee and may contain information that is privileged, confidential or otherwise exempt from disclosure under applicable law. If you are not the intended recipient or agent thereof responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by telephone and with a 'reply' message. Thank you for your co-operation.