Agilent Technologies 35670A Service Manual page 223

Agilent 35670A
Step 3. Check the periodic chirp output.
G
• Press the following keys:
[
DC OFFSET
0
[ ]
V
[ ]
LEVEL
1
[ ]
Vpk
[
PERIODIC CHIRP
• Using an an oscilloscope and a 1:1 probe, check the following signal.
Oscilloscope Setup
Connect CH1 to A5 TP8
CH1 V/div 300 V/div
Input Impedance
50 Ω
CH1 Coupling
dc
Probe Atten
1
Display Mode
Repetitive
Averaging
off
Time/div
10 µs/div
Trigger
Trg'd
Trig Src
Sweep
Chan1
• If the signal is incorrect, the A5 Analog assembly is probably faulty.
]
]
Parameters
Amplitude
Time
Duty Cycle
Pulse shape
Time
Relationship
Troubleshooting the Analyzer
To troubleshoot source and calibrator failures
Waveform
Periodic Chirp
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