Introduction
The informatio
n in this section deals with routine type maintenance that can be
performed by the operator.
Line fuse replacement
WARNING Disconnect the line cord at the rear panel,
and remove all test leads
connected to the instrument (front and rear) before replacing the line
fuse.
The power line fuse is accessible from the rear panel, just above the AC power receptacle (see
Figure 3-1).
Perf
orm the following steps to replace the line fuse:
1. Carefully grasp and squeeze together the locking tabs that secure the fuse carrier to th
e
fu
s
e
holder.
2. Pull out the fuse carrier, and replace the fuse with the type specified in Table 3-1.
CAUTION
To prevent instrument damage,
use only the fuse type specified in Table 3-1.
3. Re-in
stall the fuse carrier.
NOTE If the power line fuse continues to blow, a circuit malfunction exists and must be
corrected. Refer to the troubleshooting section of this manual for additional
information.
Ta
ble 3-1
Power line fuse
Line voltage Rating
Keithley part
no
.
100-
240V 250V, 2.5A, slow blow 5 ×
20mm
FU
-106-2.5
3-2 Routine Maintenance
2410-902-01.book Page 2 Monday, November 7, 2005 2:49 PM
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