Digital Equipment VAXstation 3100 Maintenance Manual page 181

160 Expansion Boxes
6.3.3 TK50Z Expansion Box FRU Removal and Replacement
This section describes the removal and replacement procedures for the FR.Us
in the
T~OZ
expansion box. To use this section, find the name of the FRU
that needs replacing in Table 6-3, 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.
CAUTION
Wear a sU.tic wrist strap and use a static mat
when
replacing an FRU.
Table 6-3 TK50Z Expansion Box FRU Section Listings
FRU
Power
supply
TKSO tape drive
TZK.50
controller board
SCSI ID switch board
Resistor load board
1. Switch off power to the expansion box.
Section
6.3.3.3
6.3.3.2
6.3.3.l
6.3.3.4
6.3.3.5