A SERVICE OF

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Maintenance 5
Agilent U1251A/U1252A User’s and Service Guide 107
6 Gently remove the defective fuse by prying one end of the
fuse loose and removing it out of the fuse bracket.
7 Replace with a new fuse of the same size and rating.
Make sure the new fuse is centered in the fuse holder.
8 Ensure that the rotary switch on the top case and the
circuit board switch stay on the OFF position.
9 Then re- fasten the circuit board and the bottom cover.
10 Refer to the table below for the part number, rate, and
size of the fuses.
Figure 5-7 Fuse replacement
Table 5-4 Fuse specifications
Fuse Agilent part number Rating Size Ty pe
1 2110-1400 440 mA/1000 V 10 mm × 35 mm
Fast blow fuse
2 2110-1402 11 A/1000 V 10 mm × 38 mm
Fuse 1
Fuse 2