Watford ELECTRONICS DISC DRIVE Operating Instructions - page 3
If you remove the cover from your Beeb and take out the keyboard (
disconnect the ribbon cable), you will see a double row of eight
holes on the bottom right of the keyboard (they may be horizontal or
Vertical depending on the age of the Beeb). If you now solder an 8-
way dip switch into this position so that switch 1 is either on the
left or at the bottom of the bank of switches, you will be able to
select the following functions:-
SWITCH 1
This selects the 'master' filing system if you have the Acorn DNFS
ROM fitted. In a machine with both Econet and DFS fitted, making this
switch will power you up into the Econet system. If this switch is
unmade, it will power up into a Disc system. This switch has no
effect on the Watford DFS.
SWITCH 2
Currently unused.
SWITCH 3 and 4
These select the operation speed for the DFS to match the drives. For
both Epson and Mitsubishi drives, both switches must be set.
SWITCH 5
This provides an Auto-Boot option. If this switch is made then on
power up, or a hard reset, the computer will go to the currently
selected filing system and execute a !BOOT file if found.
SWITCH 6, 7 and 8
These switches select the default screen mode which is entered when
you power up the computer or perform a hard reset. With all the
switches open, Mode 7 is selected, when they are all closed, Mode 0
is selected. Other settings cause further screen modes to be
selected.
Note: These options may be changed under software control as well.
See *FX255 in the Advanced User Guide.