K keenerb Veteran Member Joined Mar 11, 2016 Messages 859 Location Georgia, USA Jan 16, 2022 #1 Picked one up off Ebay. Seems to be missing some chips, but I'm curious what it was. Attachments leia mv-1.jpg 180.2 KB · Views: 19
Eudimorphodon Veteran Member Joined May 9, 2011 Messages 7,001 Location Upper Triassic Jan 16, 2022 #2 I will boldly hazard the guess that it’s a serial port. I’ll even go so far as say the missing chips are an 8250 UART and either a 74ls688 or a PAL.
I will boldly hazard the guess that it’s a serial port. I’ll even go so far as say the missing chips are an 8250 UART and either a 74ls688 or a PAL.
K keenerb Veteran Member Joined Mar 11, 2016 Messages 859 Location Georgia, USA Jan 16, 2022 #3 Eudimorphodon said: I will boldly hazard the guess that it’s a serial port. I’ll even go so far as say the missing chips are an 8250 UART and either a 74ls688 or a PAL. Click to expand... Yeah I looked up all those ICs. 1488p and 1489p are some sort of RS232 buffers or something, so I do believe you are correct...
Eudimorphodon said: I will boldly hazard the guess that it’s a serial port. I’ll even go so far as say the missing chips are an 8250 UART and either a 74ls688 or a PAL. Click to expand... Yeah I looked up all those ICs. 1488p and 1489p are some sort of RS232 buffers or something, so I do believe you are correct...