Changes
/* Notes */
* Whereever possible, the wire numbers from the PC standard were used!
* The universal solution connects a 3" or 3 1/2" disk drive to any CPC with disk controller
** You can even use Part A for connecting a 3" disk drive to a CPC664/CPC6128/CPC6128plus and Part Bx for connecting a 3 1/2" disk drive to a CPC464 with DDI-1 at the same time
** Part Bx, which is also the full cable for the CPC464 with DDI-1, can even be used to connect the PC drive as A: on the DDI-1, though this doesn't work with all drives.
* Although schematics for drives without own RDY-Signal are given, it is highly recommended to use drives with RDY to ensure maximum compatibility. The only todays drive known to be resolderable to output a RDY-signal is the Samsung SFD-321B and many drives won't work as A: on the CPC464+DDI-1 without a permanent RDY though.
* These schematics differ from most existing schematics on the web in that way, that they don't use GND to pull signals active low, but the /DRIVE SELECT line via diode. This ensures that the other drive on the bus doesn't become influenced. You can solder the wire containing the diode directly (without the diode) to a GND-wire and you will get the same as described in other tutorials but the side switch and - if applicable - the permanent RDY will also be in effect for the other disk drive then.
* Hints for fitting cut/squeeze plugs on flat-ribbon cable (Assuming you were building the cable according to the PC wire numbers with red wire = wire 1), connectors seen from back:
** Amstrad CPC664/CPC6128: Red wire showing away from orientation nose inside the connector
** Schneider CPC6128 (DE): Red wire showing to the right with two free pins on the right end of the connector
** Amstrad CPC6128plus: Red wire showing to the right with three unused pins on the left end of the connector (red wire not connected/overlapping end of connector)
== Schematics ==
