Sony Tektronix AWG2021, Service Manual

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Preparation for Use
2-6
AWG2021 Service Manual
Applying and Interrupting Power
Consider the following information when you power on or power off the
AWG2021, or when external power loss occurs.
At power-on, the start-up diagnostics check the AWG2021 operation. The
start-up diagnostics take about 30 seconds. If all diagnostic items complete
without error, the AWG2021 displays PASS on the screen and then changes to the
SETUP menu.
If the diagnostics detect an error, the AWG2021 displays FAIL and the error
code. To exit the diagnostics menu, press any key; then the system displays the
SETUP menu. See section 6, Maintenance, for information on diagnostics and
fault isolation.
NOTE
. If the ambient temperature goes outside the specified operating tempera-
ture range, an error occurs during the diagnostics at power-on. If this happens,
power off the AWG2021 and wait until the chassis temperature is appropriate;
then switch the power on again.
CAUTION.
To prevent loss of internally stored adjustment constants, DO NOT
power off the AWG2021 when doing the internal calibration described in
section 5, Adjustment Procedures.
Wait for the AWG2021 to finish the operation when doing internal calibration or
saving waveform or sequence files. Improper power-off or unexpected loss of
power to the AWG2021 can result in the corruption of data stored in nonvolatile
memory.
PowerĆon Cycle
PowerĆoff Cycle