Agilent Technologies 89410A Service Manual page 51

1
Check sample clocks.
a
Remove the top cover.
b Set the power switch to on ( l ).
c
Using an oscilloscope and 2 BNC(m)-to-SMB(f) cables, check the
following signals.
Oscilloscope Setup
Connect CH1 to A60 J3
Connect CH2 to A60 J2
CH1 V/div
Input Impedance
CH1 Coupling
Probe Atten
CH2 V/div
Input Impedance
CH2 Coupling
Probe Atten
Display Mode
Averaging
Time/div
Trigger
Trig Src
d
If either signal is incorrect, the A60 Frequency Reference
assembly is probably faulty.
e Reconnect the cables to A60 J3 and A60 J2.
Parameters
Time
Duty Cycle
Time Relationship
1 V/div
50 Ω
dc
1
1 V/div
50 Ω
dc
1
Repetitive
8
10 ns/div
Trg'd Sweep
Chan1
Sample Clock
Troubleshooting the Analyzer
To perform self tests
Waveform
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