Technical data

J30, MCBLZ380, Floppy

Signal Pin Signal Pin Signal

2 RPM 14 DRV0- 26 TRK0-

4 No connect 16 MTR1- 28 WRPRT-

6 DRATE0 18 DIR 30 RDATA-

8 INDEX- 20 STEP- 32 HDSEL

10 MTR0- 22 WDATA- 34 DSKCHG

12 DRV1- 24 WGATE-

NOTE All odd-numbered pins of J30 are connected to ground, except pin 29 (MID1) and pin 33 (MID0).

J43, MCBLZ176A, SCSI

Signal Pin Signal Pin Signal

26 CD0 33 CD7 46 MSG

27 CD1 34 CD Parity 47 SCT

28 CD2 38 TPWR 48 CMD

29 CD3 41 ATTN 49 REQ

30 CD4 43 BSY 50 I/O

31 CD5 44 ACK Remaining Ground

32 CD6 45 RST

J68, MCBLZ530, Fan power

Signal Color

1 +12V Red

2 Ground Black

J12 and J69, MCBLZ660, Fan power

Signal Color

1 +12V Red

2 Ground Black

J71, MCBLY520, Speaker

Signal Color

1 + 5.1 V Red

2 Ground White

J72, MCBLZ610, Power On LED

Signal Wire Color

1 Pwrgood Red

2 Ground Black