Diskette Drive Connector - NEC PowerMate Pro150 Series Service Manual

A-6 Connector Pin Assignments

DISKETTE DRIVE CONNECTOR

The following figure shows the diskette drive connector on the system board. Table A-6
provides the pin assignments.
Pin
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
2 34
1 5 33
Figure A-5 Diskette Drive Interface Connector
Table A-6 Diskette Drive Pin Assignments
Signal Name
Ground
Ground
Key
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Pin Signal Name
2 DENSEL
4 Reserved
6 FDEDIN
8 Index-
10 Motor Enable A-
12 Drive Select B-
14 Drive Select A-
16 Motor Enable B-
18 DIR-
20 STEP-
22 Write Data-
24 Write Gate-
26 Track 00-
28 Write Protect-
30 Read Data-
32 Side 1 Select-
34 Diskette