Mass Storage Controller (Msc) Module Removal - Digital Equipment VAXstation 3100 Maintenance Manual

94 VS 3100 (Model 30) System
4. Unscrew the seven screws (Figure
4--6).
DRIVE PLATE
MA-XOIH-11
Flgt1re-4-6-Removlng-the-Dr~ve-Mountlng-Panel - -- - -
5. Slide the panel forward (with the drives), then lift the panel from the
system box and set it aside.
NOTE
When reinstalling the drive mounting panel, be sure that the system
box is sitting on a ftat surface, otherwise the panel's screws may not
line up properly.
6. Return to the procedure that sent you to this procedure.
4.2.3 Mass Storage Controller (MSC) Module Removal
There are two MSC modules available in the model 30 system. One is the
ST506/SCSI MSC module and the other is the SCSI/SCSI MSC module.
Remove and replace both modules using the following procedure. Differences
between the two modules are listed where necessary.
1. Remove the system box cover (Section 4.2.1 ).
2. On the ST506/SCSI MSC module, disconnect the MSC cable, the RX23
data cable (if installed), and the SCSI bus cable (if any SCSI drives
are installed) from the MSC module (Figure 4-7). Also disconnect the
external SCSI cable or the terminator from the external SCSI port.