If required, contact a Keysight Technologies Sales and Service office to arrange for proper cleaning to
ensure that safety features and performance are maintained.
Electrostatic Discharge (ESD) Precautions
Almost all electrical components can be damaged by electrostatic discharge (ESD) during handling.
Component damage can occur at electrostatic discharge voltages as low as 50 V.
The following guidelines will help prevent ESD damage during service operations:
– Disassemble instruments only in a static-free work area.
– Use a conductive work area to reduce static charges.
– Use a conductive wrist strap to reduce static charge accumulation.
– Minimize handling.
– Keep replacement parts in original static-free packaging.
– Remove all plastic, foam, vinyl, paper, and other static-generating materials from the immediate work
area.
Troubleshooting
Before troubleshooting or repairing the instrument, make sure the failure is in the instrument rather
than any external connections. Also make sure that the instrument was accurately calibrated within the
last year (see Calibration Adjustment Procedures > Calibration Interval for details).
Perform the following verifications if the unit is inoperative:
– Verify that the ac power cord is connected to the power supply.
– Verify that the front-panel power switch is depressed.
– Verify that the power-line fuse is installed:
– Use the 2.0 AT, 250 V fuse for 100 or 115 Vac operation.
– Use the 1.0 AT, 250 V fuse for 230 Vac operation.
– Verify the power-line voltage setting.
– See Getting Started > Options and Fuse Information for details.
Self-Test Procedures
A power-on self-test occurs automatically when you turn on the power supply. This limited test assures
you that the power supply is operational.
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