Tektronix AWG2021 User Manual page 37

Start Up
Power Off
1 8
displayed, you should execute the calibrations in the UTILITY menu. Still,
when the error message is displayed, contact our nearest representative. To
exit the diagnostics system, press any of the buttons. The system moves on
to the SETUP menu.
NOTE. In order to preserve the precision of the instrument, after the completion
of the warm-up or after temperature changes, calibrate the instrument. For
details on how to calibrate, see the explanation of the Calibration item on the
UTILITY menu in Section 3.
If this instrument is exposed to temperatures outside its usage temperature range
and the chassis temperature is inappropriate, an error will occur during the
diagnostics when the power is switched on. If this happens, wait until the chassis
temperature is appropriate, then switch the power on again.
9. Toggle the ON/STBY switch.
AWG2021 User Manual