Tektronix AWG7000 Series, Service Manual

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Adjustment Procedures
AWG7000 Series Service Manual
3-5
Calibration Procedure
Before starting the calibration procedure, you need to restore the calibration
constants that were obtained by ATS (Automatic Test System) at the factory or the
service center.
Restoring the Calibration
Constants
Click the Copy Calibration Data from AWG10G to MIO button in the middle
right of the Service UI window.
The calibration data saved to the EEPROM on the AWG10G board during the ATS
calibration is restored to the EEPROM on the MIO board. The calibration data on
the MIO board EEPROM is used during the following calibration procedure.
10 MHz Reference
Calibration
This procedure adjusts the built-in TCXO oscillator frequency for the 10 MHz
Reference Output.
1. Install the test hookup and preset the instrument controls:
a. Connect a BNC cable from the 10 MHz Reference Output on the rear panel
of the arbitrary waveform generator to the CHANNEL 1 of the frequency
counter, as shown in Figure 3-2.
Figure 3-2: 10 MHz Reference calibration initial test hookup
2. Set the frequency counter CHANNEL 1 Impedance to 50
Ω
..
Equipment required One frequency counter
One 50
Ω
BNC cable
LIMITS MEASURE MASS DISPLAY
CHANNEL1
CHANNEL2
'ZVGTPCN
%NQEM+PRWV
ǡF$O/CZ
ǡ8RR/CZ
4GHGTGPEG
%NQEM+PRWV /*\
4GHGTGPEG1WVRWV
!
10 MHz Reference Output
CHANNEL 1
Instrument under test
Frequency counter