User Guide

4
.
Troubleshooting
12
4. Troubleshooting
1. Oscilloscope is powered on but no display.
 Check whether the power connection is connected properly.
 Check whether the fuse which is beside the AC power input jack is blew
(the cover can be pried open with a straight screwdriver).
 Restart the instrument after completing the checks above.
 If the problem persists, please contact us and we will be under your
service.
2. After acquiring the signal, the waveform of the signal is not displayed in
the screen.
 Check whether the probe is properly connected to the signal connecting
wire.
 Check whether the signal connecting wire is correctly connected to the
BNC (namely, the channel connector).
 Check whether the probe is properly connected with the object to be
measured.
 Check whether there is any signal generated from the object to be
measured (the trouble can be shot by the connection of the channel from
which there is a signal generated with the channel in fault).
 Make the signal acquisition operation again.
3. The measured voltage amplitude value is 10 times or 1/10 of the actual
value.
Look at the attenuation coefficient for the input channel and the attenuation
ration of the probe, to make sure they are match (see "Set the Probe
Attenuation Coefficient" on P9).
4. There is a waveform displayed, but it is not stable.
 Check whether the trigger source (Int/Line/Ext controls on the front panel)
is in conformity with the signal channel used in the practical application.
 Press down the Lock button on the front panel.