CW Generator Quits During Operation
(
OPERATE
light remains on)
Trouble Description: The CW generator operates for some time, then
shuts down (
OPERATE
light remains on). After a short period, the CW
generator resumes normal operation. This is an indication that the
680XXB has reached an excessive operating temperature.
Step 1
Check that the fan is still operating during the time that the
instrument is shut down.
If the fan is still operating, clean the air filter (see page
6-14).
If the fan is not operating, call a service technician.
LOCK ERROR
is Displayed
Trouble Description: This message is displayed in the frequency pa-
rameters area to indicate that the output frequency is not phase-
locked. It is normally caused by an internal component failure.
Step 1
Perform a self-test of the CW generator by pressing the Sys-
tem Menu soft-key
Selftest
.
If self-test does not result in an error message(s), resume
normal operation.
If an error message(s) is displayed, call a service techni-
cian.
Table 6-4.
Troubleshooting (2 of 3)
OPERATOR
MAINTENANCE
TROUBLESHOOTING
680XXB OM
6-11
Summary of Contents for 680 B Series
Page 5: ......
Page 11: ...Figure 1 1 Series 680XXB Synthesized CW Generator...