Main Power Connector; Diskette Drive Connector - NEC NEAX Express Service & Reference Manual

Main Power Connector

Pin Signal
1 +3.3 VDC
2 +3.3 VDC
3 COM
4 +5 VDC
5 COM
6 +5 VDC
7 COM
8 PWR-OK
9 +5 VSB
10 +12 VDC

Diskette Drive Connector

Pin Signal
1 GND
2 FD_DENSEL
3 GND
4 N/C
5 Key
6 FD_DRATE0
7 GND
8 FD_INDEX_L
9 GND
10 FD_MTR0_L
11 GND
12 FD_DR1_L
13 GND
14 FD_DR0_L
15 GND
16 FD_MTR1_L
17 FD_MSEN1
Main Power Connector Pinout
Wire color Pin
Orange 11
Orange 12
Black 13
Red 14
Black 15
Red 16
Black 17
Grey 18
Purple 19
Yellow 20
Diskette Drive Connector Pinout
Pin
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
Signal Wire color
+12 VDC Yellow
+3.3 VDC Orange
+3.3 VDC Orange
-12 VDC Blue
COM Black
PS_ON Green
COM Black
COM Black
COM Black
-5 VDC White
Signal
FD_DIR_L
GND
FD_STEP_L
GND
FD_WDATA_L
GND
FD_WGATE_L
GND
FD_TRK0_L
FD_MSEN0
FD_WPROT_L
GND
FD_RDATA_L
GND
FD_HDSEL_L
GND
FD_DSKCHG_L
Connectors E-3