HP HP 54600B, User'S And Service Manual

Page: 110 / 183

External Trig
Sensitivity 6
Verify the external trigger sensitivity at 100 MHz (60 MHz for
HP 54603B) and 100 mV p-p (HP 54600B and HP 54603B only).
a
Press
Source
, then press the
Ext
softkey.
b
Use the power splitter to connect the signal generator to the channel
1 input and to the external trigger input.
c
Change the output of the signal generator to 100 MHz and 200 mV p-p.
The power splitter divides the 200 mV so that 100 mV is applied to
each of the oscilloscope inputs.
The oscilloscope triggering should be stable. If the triggering is not
stable, try adjusting the trigger level. If adjusting the trigger level
makes the triggering stable, the test still passes. If adjusting the
trigger does not help, see "Troubleshooting the Oscilloscope," on
page 4–40.
7
Verify the external trigger sensitivity at 25 MHz and 50 mV p-p
(HP 54600B and HP 54603B only).
a
Change the output of the signal generator to 25 MHz at about 100 mV.
b
Press
Autoscale
.
The oscilloscope triggering should be stable. If the triggering is not
stable, try adjusting the trigger level. If adjusting the trigger level
makes the triggering stable, the test still passes. If adjusting the
trigger does not help, see "Troubleshooting the Oscilloscope," on
page 4–40.
Service
Verifying Oscilloscope Performance
4–21