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•
Connect the frequency synthesizer to the analyzer’s rear panel EXT TRIG
connector using a BNC cable.
•
Press the following keys allowing enough time for the analyzer to trigger
before pressing the next key. Note which trigger modes are failing:
[
CHANNEL 1 ]
[
CHANNEL 2 ]
[
CHANNEL 3 ] (option AY6 only)
[
CHANNEL 4 ] (option AY6 only)
[
TRIGGER SETUP ]
[
CHANNEL LEVEL ]
200
[ mV ]
[
SLOPE NEG ]
[
ALL CHANNELS ]
[
CHANNEL DELAY ]
100
[ mS ]
[
0 ]
[
S ]
[
Rtn ]
[
ARM SETUP ]
[
MANUAL ARM ]
[
Rtn ]
[
ARM ]
[
ARM SETUP ]
[
AUTOMATIC ARM ]
[
Rtn ]
[
EXTERNAL TRIGGER ]
[
TRIGGER SETUP ]
[
EXT LEVEL TTL ]
[
EXT LEVEL USER ]
[
USER EXT LEVEL ]
200
[ mV ]
[
EXT RANGE +/− 10 ]
[
USER EXT LEVEL ]
0
[ V ]
The message
WAITING FOR mode TRIGGER is displayed when the analyzer is not
triggering.
•
Change the frequency synthesizer’s amplitude to 0.3 Vp-p.
•
Press [ EXT RANGE +/ 2 ].
The analyzer should now trigger.
Agilent 35670A Troubleshooting the Analyzer
To troubleshoot trigger failures
4-63