18 Oct
1998
18 Oct
'98
4:32 a.m.
Russ Blakeman wrote:
Someone out there had the technical reference for the original IBM PC
model 5150. I need the pinout for the cassette port if possible.
Pin 1 - Motor Control
Pin 2 - Ground
Pin 3 - Motor Control
Pin 4 - Data In
Pin 5 - Data Out
The internal connection on Pin 1 and Pin 3 is a relay with N.O. contacts.