According to Stason you may not like the answer.
If it’s in a default LLF
Quote:
Jumpering J4.1 to J4.2 causes the 8051A to operate in the slave role.
Remove this jumper when the drive is to function as the master, or is
the only drive attached.
However if they modified the LLF you’ll have some issues as the drive position (1/2/3 or master/slave) is matched to a binary notation in the pre-lead ring.
The huge up side here is it’s a miniscribe. One of the most reliable and heavily documented drive families in history. The tools are still available since most of the drives still work.
They don’t build them like that anymore!