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4
Calibration and Adjustment
Timebase Verification
Description
This procedur e verifies the cor r ect oper atin g frequen cy of the digitizers
in ter n al timebase.
The timebase verification test procedur e con sists of con nectin g a
fr equen cy counter to the timebase r efer en ce sign al on the 10 MHz Out
BNC con nector and measur ing the r eference sign al fr equen cy.
Procedure
1
2
3
4
58
Conn ect the r ear pan el Timebase Output to the coun ter input.
Measur e the timebase output fr equency.
Compar e the measur ed fr equency to the value in the table below.
If the measured value is out of the specified r an ge, the digitizer
r equir es repair : the Digital Board must be r eplaced.
Nominal Output
Specification
10 MHz
500 Hz
Agilent L4532A/ 34A Service Guide
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