!!!! NOTE: This unit does not currently seem to work properly. !!!! !!!! The ROM dumps may not be correct. !!!! !!!! The ROMs may not be in the correct sockets, etc. !!!! 2023/8/3 Issues: On power-on the LEDs on the PM9052 do show the contents of addr 0 of the 2716 chip in the copy socket. From there - Action: Press List Result: 117 7FF ? I'd expect 000 7FF instead Action: Press number keys 000 008 Result: fills out the 6 digits as expected Action: Press Enter Result: 111 19 ? expected 000 xx - ADDR and whatever in in 000 on the 2716 Action: Press Enter Result: BB9 9D ? expected 001 xx - ADDR and whatever in in 001 on the 2716 Action: Press Enter Result: BB9 9D ? nothing changes with enter repeatedly pressed Cheers, Matt Intergalactic Microsystems