2000 floppy problems

[rkauer]

da9000 wrote:
Hi Brian,

there's a jumper on the motherboard which controls the behavior IIRC. Near the back of the case and "under" the CPU slot.

 You mean J500? Yes, you need to change the status of the jumper.

 But if the drive after "the twist" works, you made a huge mess inside the Amiga!

Amiga drives floppy cable don't use twisted cables! Instead you set the drives (one as DS0, another as DS1) with a straight cable.

 But if you are using modified pc floppy drives, check if they match the Amiga specification: Diskchange signal in pin 2, Ready signal on pin 34.

 Look on my pictures to hack a proper modification to any peecee floppy unit to act as an original Amiga.

[rkauer]

 Just a little mistake: if you use a twisted cable, use the two floppies as unit 0 (DS0) or 1 (DS1). The twist on the cable just "invert" the selection signals.

 A DS1 floppy hooked after the twist will act as a DS0 unit. Diddle for DS0 after the twist, it will act as DS1.

 Using a straight floppy cable is just a matter of selecting each floppy as a different unit: one as DS0, the other as DS1.

 Using a twisted floppy cable both units must use the same ID (DS0 or DS1).