Agilent Technologies U1602A User's And Service Manual page 154

6 Service and Maintenance
• If there is no trace display
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• If the trace display is unusual or unexpected
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154
Recall factory default setting by pressing
panel. Press F1 to enter Save/Load Setup menu, in the page 1/4, then
press F1 to restore factory default setting.
Check that the scope probe lead wires are securely inserted into the
connector assembly and that the probe clips are making good contact
with the probe lead wires.
Check that the circuit under test is powered on, probe clips are
securely connected to test points on the circuit under test, and ground
is connected.
Press Autoscale button to allow the instrument to automatically trigger
the signal to the best display.
Contact Agilent Technologies Service Center to obtain technical
assistance, if necessary.
Check that the horizontal time/division is correctly set for the expected
frequency range of the input signals.
Check that all scope probes are connected to the correct signals on the
circuit under test, and ground lead is securely connected to ground of
the circuit under test.
The trigger setup is the most important factor in capturing the signal
you desire. Check that the trigger setup is correct.
Check that infinite persistence in the Display menu is turned off. Press
Clear Display to remove the display.
Press Autoscale button to allow the instrument to automatically trigger
the signal to the best display.
Contact Agilent Technologies Service Center to obtain technical
assistance, if necessary.
Agilent U1602A/U1604A User's and Service Guide
button on the front