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Agilent L4532A/ 34A Service Guide
4
Calibration and Adjustment
Timebase Verification
Description
This pr ocedu r e ver ifies t he cor r ect oper atin g fr equen cy of t he digitizer s
in ter n al timebase.
The timebase ver ification test procedu r e con sists of con n ectin g a
fr equ en cy cou n t er t o t he timebase r efer en ce sign al on t he 10 MHz Ou t
BNC con n ect or an d measu r in g t he r efer en ce sign al fr equ en cy.
Procedure
1
Con n ect th e r ear pan el Timebase Outpu t to t he coun ter inp ut.
2
Measur e t he timebase ou tpu t fr equ en cy.
3
Comp ar e t he measu r ed fr equen cy t o t he valu e in t he t able below.
4
If t he measu r ed valu e is out of t he sp ecified r an ge, t he d igitizer
r equ ir es r ep air : t h e Digit al Board mu st be r ep laced.
Nominal Output
Specification
10 MHz
500 Hz
