Keithley 2520, Service Manual, Page: 70 / 137

3-2 Routine Maintenance Model 2520 Pulsed Laser Diode Test System Service Manual
Introduction
The information in this section deals with routine type maintenance that can be performed
by the operator and includes information on line fuse replacement.
Line fuse replacement
WARNING Disconnect the line cord at the rear panel, and remove all test leads
connected to the instrument before replacing the line fuse.
The power line fuse is accessible from the rear panel and is integral with the AC power
module (see
Figure 3-1 ).
Figure 3-1
Model 2520 rear panel
Line Fuse
TRIGGER LINK
PULSE
SYNC
OUT
TESTHEAD
CONN 1
LINE FUSE
SLOWBLOW
1.6A, 250V
LINE RATING
100-240VAC
50, 60Hz
140VA MAX.
TESTHEAD
CONN 2
CAT I
WARNING:
NO INTERNAL OPERATOR SERVICABLE PARTS, SERVICE BY QUALIFIED PERSONNEL ONLY.
CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE FUSE WITH SAME TYPE AND RATING.
MADE IN
U.S.A.
!
IEEE-488
(CHANGE IEEE ADDRESS
WITH FRONT PANEL MENU)
DIGITAL I/O
RS-232
!
!