Troubleshooting - Vevor Sds1102 Benutzerhandbuch

7. Troubleshooting

1. Oscilloscope is powered on but no Display.
 Check whether the power connection is connected properly.
 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 ratio of the probe, to make sure they are match (see
"How to Set the Probe Attenuation Coefficient" on P20).
4. There is a waveform displayed, but it is not stable.
 Check whether the Source item in the TRIG MODE menu is
in conformity with the signal channel used in the practical
application.
 Check on the trigger Type item: The common signal
chooses the Edge trigger mode for Type and the video
signal the Video. If Alternate trigger is selected, both of the
channel 1 and channel 2 trigger levels should be adjusted to
91