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General Information
1-9
Drive or Unit Number
The drives connected to a controller board are differentiated by their drive number. The
drive number must be between
a
and 3. The factory sets 9895A drives to
a
and 1, and
9895A Option all or 012 to 2 and 3. The drive number can be found on the front cover,
beneath the disc insertion opening. If this number must be changed (to eliminate conflicts or
other reason), follow this procedure.
1.
Remove front, top and bottom covers (see disassembly procedures in Chapter 3).
2. Place the unit on it's top.
3. Remove the controller board.
4. Remove the four screws holding the drive into the chassis.
5. Slide the drive forward to clear the aluminum plate covering the back portion.
6. Locate the eight segment drive select switch on the rear of the drive electronics board
mounted on the underside of the drive module (see Figure 1-3).
7. Set the switch segments according to the following diagram.
Segments
Select Code
1
2
3
4
5
6
7
8
3
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
2
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
1
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
0
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
Figure 1-3.
Setting the Drive Number
8. If you changed the drive number, be sure to change the number on the front of the
drive.
9. Re-assemble the unit.
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