Rrd40 Compact Disc Drive Removal - Digital Equipment VAXstation 3100 Maintenance Manual

122 VS 3100 (Model 40) System
5. Position the switches on the right side of the new TZ30 to the same
position as on the old TZ30 you just removed. Usually, the switches are
set as shown in Figure 5-12.
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Figure 5-12 TZ30 Jumper Switch Location
5.2.6 RRD40 Compact Disc Drive Removal
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The RRD40 compact disc drive subsystem consists of the RRD40 drive and
the RRD40 adapter board. The drive is in the left position on the lower drive
- mounting panel an~ the RRD40 adapter-board-is on the back of the top-drive-
mounting panel. The RRD40 adapter board connects to the SCSI bus and a
data cable connects the RRD40 drive to the adapter board.
1. Remove the system box cover (Section 5.2.1).
2. Remove both the drive mounting panels (Section 5.2.2).
3. Turn the drive mounting panel over and remove the four screws from the
drive. Support the RRD40 drive with one hand when removing the last
screw.
NOTE
The RRD40 compact disc and the RRD40 adapter board are one FRU
and both must be replaced together.
4. Position the switches on the new drive and the new adapter board to the
same position as on the old drive and old adapter board you just removed.
Usually, the switches are set as shown in Figure 5-13.