Sony Tektronix AWG2021, Service Manual

Page: 99 / 262

Performance Tests
AWG2021 Service Manual
4-31
2. Set AWG2021 controls and select the waveform:
a. Initialize AWG2021 controls: Push UTILITY
!
Misc
!
Config...
!
Re-
set to Factory
!
O.K.
b. Select the waveform file:
H
Push SETUP
!
Waveform Sequence, if necessary, to select a
waveform file for CH1. Waveform Sequence toggles between the
CH1 files (upper list) and the CH2 files (lower list).
H
Turn the general purpose knob to select the CLK_FREQ.WFM file.
H
Push ENTER.
3. Check clock frequency accuracy:
a. Check clock frequency accuracy at current clock frequency setting:
Check that the frequency counter reading falls between 249.9875 MHz
and 250.0125 MHz.
b. Check clock frequency accuracy for different clock frequency settings:
H
Select Clock/Divider from the bottom of the SETUP menu, or select
Clock if the instrument is not equipped with Option 02.
H
Turn the general purpose knob (or press the numeric and units keys,
and push ENTER) to select the first clock frequency listed in
Table 4–3.
H
Check that the frequency counter reading is within the frequency
range listed in the table for the clock frequency setting.
H
Repeat this step for each clock frequency and frequency range listed
in Table 4–3.
Table 4-3: Clock Frequency Accuracy
Clock Frequency Frequency Range
150ĂMHz 149.9925ĂMHz - 150.0075ĂMHz
1ĂMHz 0.99995ĂMHz
–
1.00005ĂMHz
1ĂkHz 0.99995ĂkHz - 1.00005ĂkHz
10ĂHz 9.9995ĂHz - 10.0005ĂHz
4. End procedure: Disconnect the frequency counter.