Parts/Test Point Locations 129

Diskette Drive Cable Conne ctor Signals
Pin Signal
Name I/O Pin Signal
Name I/O
1 Ground 18 Direction 0
2 Density
Select O19Ground
3No
Connection 20 Step O
4 No
Connection 21 Ground
5Ground 22Write DataO
6No
Connection 23 Ground
7 Ground 24 Write Enable O
8 Ind ex I 25 Ground
9 Ground 26 Track 0I I
10 Motor Enable
0O27Ground
11 Ground 28 Write P rotect I
12 Drive Select
1O29Ground
13 Ground 30 Re ad Da ta I
14 Drive Select
0O31Ground
15 Ground 32 Select Head
1O
16 Motor Enable
1O33Ground
17 Grou nd 34 Diskette
Change I