The original 3.5 inch floppy drive of the A-4000 can be mounted directly
into an 5.25 inch mounting frame if the height of the original A-4000 drive
is 1.5 inch. It is also possible to mount the 1.5 inch floppy disk drive into
the 3.5 drive bays, but in that case you cannot use the second from the
front accessible 3.5 drive bay. If you have a floppy disk drive with the
height of 1 inch then mount it into the 3.5 inch drive bay.
Hard disk drives and additional 3.5 inch slimline floppy drives are now
mounted in to the 3.5 inch drive bay.
Hold the 3.5 inch drive cage onto its mounting position in the tower and
determine the position of the drives that have to be placed inside the cage.
Then fix the drives into the dismounted drive cage and mount it back into
the tower case. Now check the exact positioning of the drives and correct
it if necessary. Connect the data cables and power cables of all drives
taking care of the polarity that you noted before.
The switch unit with the MHz display at the front of the tower comes
completely pre-adjusted. Some A-4000 towers are delivered with type 1 or
type 2 of the MHz display (mechanical setting). See drawings of the
default settings (30 / 40 MHz) next page.
unused jumper
(parking position)
dark turbo turbo normal
& normal only only
8
