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From: EUGENE.WELCOME@rook.wa.com (eugene welcome)
Newsgroups: comp.sys.apple2
Subject: disk][ to //c pinout want
Message-ID: <150B0A14@rook.wa.com>
Date: Tue, 28 Mar 1995 21:20:09 GMT
Organization: Knight-Line! (206) 565-0594
Distribution: world
Lines: 44
PARICKJ4560@COBRA.UNI.EDU Hollered from the hallowed halls.
> I am desperately seeking the pinout for disk 2
> controller card to //c port...any body possibly have it ?
======================================================================
Male DB-19. Connector
1 1
1 2 3 4 5 6 7 8 9 0 0 9 8 7 6 5 4 3 2 1
_____________________ _____________________
( o o o o o o o o o o ) ( O O O O O O O O O O )
\_o_o_o_o_o_o_o_o_o_/ \_O_O_O_O_O_O_O_O_O_/
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 2 3 4 5 6 7 8 9 9 8 7 6 5 4 3 2 1
Pin View Soldered End
======================================================================
Pin
1 Signal Ground 11 Phase 0
2 Signal Ground 12 Phase 1
3 Signal Ground 13 Phase 2
4 3.5 Disk sense (if applicable) 14 Phase 3
5 -12 volts DC 15 Write Protect
6 +5 volts DC 16 Head Select (if applicable)
7 +12 volts DC 17 Enable Drive 2 (Low for Dr.2)
8 -12 volts DC 18 Read Data
9 Enable Drive 1 (Low for Dr.1) 19 Write Data
10 Write Protect
Note: (if applicable) is if 3.5 drives can be used on your version IIc.
Note: (Low for Dr.1) or (Low for Dr.2) This is the logic signal present
at the time each drive is active.
I hope this helps. I had to modify an old ][ Drive to work on my Laser
128 in 1985. The DB19 connector was a little hard to find. I still keep
the drive for backup and I did change the ribbon cable last yr with DB19
connector with an Apple shielded cable that had the flat header
connector plus a molded DB19 on the other end. The Laser and IIc has
the same configured drive port as I have a IIc also. The old drive also
works on my IIgs at the end of the daisy chained 3.5 and 5.25 drives.
The Apple drive cable part # 590-4360-A
Gene, K7"EEK" !! a Mouse !!! A Non-offensive Signature Line.