Appendix B: Maintenance
CFG280 User Manual 27
Yes
Send your instrument to the
nearest Tektronix service
center.
Adjust with AMPLITUDE knob and MAIN
button.
Is signal
amplitude too
large or too
small?
Yes
No
No
Yes
Start.
Is signal
frequency too fast
or slow?
Adjust with MULTIPLIER
buttons and FREQUENCY dial.
Is signal responsive to
sweep rate and sweep
width adjustments?
No Are
you using internal or
external
sweep?
Internal
External
Is signal
responsive to DC
offset
adjustments?
No
Yes
Is
SWEEP button
pushed
in?
Is
DC OFFSET knob
pulled out?
Done.
Sweep knobs do not
function in external
sweep mode.
Push in SWEEP
button to activate
internal sweep.
Pull DC OFFSET knob
out to activate DC offset
function.
No
No
Yes
Inappropriate Function Generator Output
Send your
instrument to the
nearest Tektronix
service center.