Agilent Technologies 89410A Service Manual page 85

5
Check the random noise output.
a
b
Oscilloscope Setup
Connect CH1 to SOURCE
CH1 V/div 100 mV/div
50 Ω
Input Impedance
CH1 Coupling dc
Probe Atten 1
Display Mode Real Time
Resolution 7 bits
Time/div 200 ns/div
Trigger Trg'd Sweep
Trig Src Chan1
c
Press the following keys:
[cal signal off]
]
[Source
[ source on]
]
[level
1
[ ]
V
[ ]
source type
[ ]
random noise
Using an oscilloscope and 1:1 probe, check the following signal.
Parameters Waveform
Variations
No Pattern
Random Noise
If the random noise source is incorrect, the A30 Digital Source
assembly is probably faulty.
This is only a quick check of the random noise signal. Do the
Random Noise performance test to thoroughly check the random
noise signal.
Troubleshooting the Analyzer
To troubleshoot source and calibrator out failures
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