Here is the current connection diagram so far:
7 - +5V
9 - +5V
11 - +5V
13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33 - GND
Connection from floppy connector to PC floppy drive
2 - connect to pin 34 directly
4 - 4 /BUSY
6 - open
8 - 8 /INDEX
10 - 12 /DRIVE1
12 - open
14 - open
16 - 16 /MOTOR1
18 - 18 /DIR
20 - 20 /STEP
22 - 22 /WDATA
24 - 24 /WGATE
26 - 26 /TRK00
28 - 28 /WPT
30 - 30 /RDATA
32 - 32 /SIDE1
34 - 34 /RDY