Agilent Technologies 35670A Service Guide

To troubleshoot trigger failures
Use this test when the trigger mode is suspected of failing or the Input Trigger self test
fails on all channels.
q
Step 1. Check trigger modes.
•
Set the power switch to on ( l ).
•
Press the following keys:
[
System Utility ]
[
CALIBRATN ]
[
AUTO CAL OFF ]
[
Input ]
[
ALL CHANNELS ]
[
CH* FIXED RANGE ]
1
[ Vpk ]
[
Source ]
[
SOURCE ON ]
[
LEVEL ]
1
[ Vpk ]
[
FIXED SINE ]
[
1 ]
[
kHz ]
[
Inst Mode ]
[
4 CHANNEL ]or[2 CHANNEL ]
[
ACTIVE TRACE ]
[
ABCD]or[AB]
[
Meas Data ]
[
ALL CHANNELS ]
[
TIME CHANNEL ]
[
System Utility ]
[
MORE ]
[
SERVICE TESTS ]
[
SPCL TEST MODES ]
[
SOURCE LEVEL ]
[
Trigger ]
[
SOURCE TRIGGER ]
•
If the analyzer is not triggering and the message WAITING FOR SOURCE
TRIGGER
is displayed, the A6 Digital assembly is probably faulty.
Fixed sine wave source triggering occurs at a consistent (but not predictable) point
within the time record.
•
Set the frequency synthesizer as follows:
Frequency
Amplitude
Function
1 kHz
6 Vp-p
Square Wave
Troubleshooting the Analyzer Agilent 35670A
To troubleshoot trigger failures
4-62

Agilent Technologies 35670A Specifications

General

Brand	Agilent Technologies
Model	35670A
Category	Measuring Instruments
Language	English