Technical data

5 Disassembly and Repair
70 U3401A User’s and Service Guide
Operating Checklist
Before returning your multimeter to Agilent for service or repair check the
following items:
Is the multimeter inoperative?
q Verify the power line voltage setting.
q Verify the power line fuse is installed.
q Check the power cord is connected to multimeter and to AC line power.
q Verify the front panel power switch is depressed.
See page 72
Is the mutimeter’s current input inoperative?
q Verify the current input fuse.