4 Service and Maintenance
54 Keysight U1241B and U1242B User’s and Service Guide
Fuse Replacement
1 Turn off the multimeter and disconnect the test leads from external
equipment.
2 Loosen four screws on bottom case, lift and remove the cover.
3 Gently remove the defective Fuse 1 by prying one end of the fuse and removing
it out of the fuse bracket, see Figure 4-2.
4 Replace a new fuse of the same size and rating into the center of the fuse
holder.
Figure 4-2 Fuse 1 replacement
5 If you want to replace a defective Fuse 2, remove Fuse 1 then loosen the four
screws (shown in Figure 4-3) to lift and remove the circuit board from top case.
6 Gently remove the defective Fuse 2 by prying one end of the fuse loose and
removing it out of the fuse bracket, see Figure 4-3.
Users are recommended to use clean/dry gloves when performing fuse
replacement. Do not touch any components except the fuse and plastic parts.
No recalibration is required after replacing the fuse.
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