PAGE UPDATED 4.4.2010

A4000 FLOPPY CABLE FIX

Many and perhaps most A4000s were shipped with improperly-wired floppy cables. These cables had wires 3-5 twisted, instead of wires 4-6. These cables will work fine for a single drive, but will not properly connect a second drive. Also an improperly-wired or failing floppy cable can cause a high-density drive to only work with double-density disks. My A4000 was no exception and it had 3-5 twisted. This guide will tell you how to correct this and how modify PC floppy cable as Amiga floppy cable.  

Requirements:
Instructions:

On left improperly-wired A4000 floppy cable and on right PC floppy cable that was opened, cut and modified to be properly-wired A4000 floppy cable.




Open floppy connector by pushing a flat screwdriver on both edges of the connector.

Peel floppy cable from other egde of the connector to the other edge. Just like you would roll a rug. Be careful not to pull pins up and out of the connector.

Cut improperly-wired floppy cable end off.

Cut the plastic with scissors between pins 3 and 4 for about 5cm

Cut the plastic with scissors between pins 6 and 7 for about 5cm

Twist cable pins 4-6 around and install them inside the opened floppy cable connector.

Press floppy cable connector with screw vice or flat cable clamp until it is closed and the pin blades have penetrated the wires.

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