Technical data

VAXstation 3100 (Model 38) System 27
The monitor or an external mass storage device can be plugged in the
switched ac outlet.
The S3 switch next to the LEDs on the back of the system module controls
the console port. When the S3 switch is in the down position, it enables
the monitor connected to the monitor port to be the console. When the S3
switch is in the up position, it enables a terminal connected to the printer
port to be the console.
4.2 FRU Removal and Replacement
This section describes the removal and replacement procedures for the
FRUs in the VAXstation 3100 model 38 system. To use this section, find
the name of the FRU that needs replacing in Table 4–1, then go to the
section listed beside the FRU. Follow the steps in the section to remove
the FRU and reverse the procedures to replace the FRU. Always test the
replaced device for proper operation.
CAUTION
Wear a static wrist strap and use a static mat when replacing
FRUs.
Table 4–1 FRU Section Listings
FRU Section
Battery pack 4.12
Keyboard 4.14
Mass storage controller (MSC) module 4.8
Memory module 4.10
Mouse and tablet 4.15
8-plane graphics coprocessor option 4.9
Power supply 4.13
System module 4.11
RX23 diskette drive 4.6
TZ30 tape drive 4.5
RZ22 or RZ23 disk drive 4.4
The FRUs for the monitors are not covered in this guide. This information
is contained in the various pocket service guides listed in Table 4–2.