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Adjustment Procedures
5-16
AWG510 & AWG520 Service Manual
2. Set AWG500 controls:
a. Initialize AWG500 controls: Press UTILITY Ý System Ý Factory
Reset Ý OK.
b. Load waveform:
H Press SETUP Ý Waveform/Sequence Ý Load...
H Turn the general purpose knob to display the list of waveform files
and highlight the file TRIM.PAT (triangle waveform; 10 MS/s).
H Press OK to select and load the file.
c. Start waveform generation:
H Press RUN button.
H Press CH 1 OUTPUT button.
3. Adjust CH 1 DAC linearity:
a. Make sure that the position of R6025 and R6026 is near center.
b. Adjust low range bits of the DAC: Adjust R6026 on the AWG (A50)
board so that rise and fall slope to be linear.
c. Adjust mid range bits of the DAC: Adjust R6025 on the AWG (A50)
board so that rise and fall slope to be linear.
d. Readjust low range bits of the DAC: Adjust R6026 on the AWG (A50)
board so that rise and fall slope to be linear.
The following steps 4 and 5 are for the AWG520 only. For the AWG510, go to
the step 6.
4. Setup for CH 2 DAC Adjust: (AWG520 only)
a. Connect the oscilloscope: Disconnect the BNC on CH 1 output, then
connect it to the AWG500 CH 2 output connector.
b. Load waveform to CH 2:
H Push CH 2 button
H Press SETUP Ý Waveform/Sequence Ý Load...
H Turn the general purpose knob to display the list of waveform files
and highlight the file TRIM.PAT (triangle waveform; 10 MS/s).
H Press OK to select and load the file.