Anritsu 681XXC - Manual (Page 199)

6-3
TROUBLESHOOTING Table 6-4 provides procedures for troubleshooting common malfunc-
tions encountered during operation of the signal generator. Included
are procedures for troubleshooting faults that do not produce error
messages, such as, failure to power up and unexpected shutdown.
6-10 681XXC OM
Signal Generator will not turn on
( OPERATE light is OFF )
Normal Operation: When the 681XXC is connected to the power
source, the
OPERATE light should illuminate and the instrument
should power up.
Step 1 Disconnect the 681XXC from the power source, then check
the line fuse on the rear panel.
q If the fuse is defective, replace (see page 6-14).
q If the fuse is good, go to the next step.
Step 2 Check to see if power is available at the power receptacle.
q If not, move to a working receptacle.
q If power is available, go to the next step.
Step 3 Check the power cable.
q If defective, replace.
q If good, call a service technician.
Signal Generator will not turn on
( OPERATE light is ON )
Normal Operation: When the 681XXC is connected to the power
source, the
OPERATE light should illuminate and the instrument
should power up.
q If the OPERATE light illuminates but the unit fails to
power up, the 681XXC has an internal component fail-
ure. Call a service technician.
Table 6-4. Troubleshooting (1 of 3)
OPERATOR
MAINTENANCE
TROUBLESHOOTING