[Coco] FDD 26pin to 34pin (pic attached)

[Chester A Patterson]

Thankyou! 

-----Original Message-----
From: Robert Emery [mailto:theother_bob at yahoo.com] 
Sent: Tuesday, August 08, 2006 4:11 PM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] FDD 26pin to 34pin (pic attached)

(sorry for directly attaching the pic here, but I'm in a hurry)
 
OK, here's the 26 pin deal...
 
I acquired a 26 pin IDC connector from a PC Parallel port connector,
carefully removed from it's ribbon cable. Prepare your CoCo floppy cable
with a bare end waiting for a new connector...
 
>From the 34 pin cable, line up pin 7 to pin 1 of the 26 pin connector.
This should make pin 32 line up to pin 26 of the 26 pin connector. Go
ahead and crimp it on.
 
Wires 1-6, 33 and 34 can be cut off somewhere before the connector.Lines
11 thru 15 also need to be cut out. I removed about an inch of those
wires from the mid section.
 
The trickiest part is to separate the 5V lines at the floppy end.
Remember that Controller pin 7 is going to Floppy pin 1, so I am
shifting my wire references to the floppy end of the cable now. Separate
wires 1,3 and 5 (FDC lines 7,9 and 11). Cut them a few inches from the
connector so they no longer connect to the Controller, connect them
together and feed +5v into the drive from this combined line. 
 
This is all it takes for the basic configuration. I also intercepted the
Side Select and DS0/DS1 lines for my two switches.
 
HTH,
Bob