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Adjustment Procedures
AWG510 & AWG520 Service Manual
5-15
This procedure adjusts R6025, R6026, R7025 (AWG520), and R7026
(AWG520) on the A50 AWG board for the DAC Linearity. See Figure 5–6 for
the adjustment location on page 5–11.
Equipment
Required
One oscilloscope (Item 1)
One 50 W coaxial cable (Item 5)
1. Connect the test equipment and set test equipment controls:
a. Connect the oscilloscope: Connect the AWG500 CH 1 output connector
through a BNC coaxial cable to the CH 1 input connector on the
oscilloscope.
50 W coaxial cable
AWG500 Oscilloscope
Figure 5-8: Hookup for the DAC linearity adjustment
b. Set oscilloscope controls:
Vertical . ........................ CH1
CH 1 coupling . ............... DC
CH 1 scale . ................. 10mV/div
CH 1 input impedance . ......... 50W
Horizontal
Sweep . .................... 2ms/div
Trigger
Source . .................... CH1
Coupling . ................... AC
Slope ...................... Positive
Level ...................... 0V
Mode . ..................... Auto
DAC Linearity