Datasheet

56
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 PEAKTECH 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 "How to Set the Probe Attenuation Coefficient" on P13).
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 the proper position. Only if a proper
trigger mode is applied, the waveform can be displayed steadily.
5. No Display Responses to the Push-down of Run/Stop.
Check whether Normal or Signal is chosen for Polarity in the TRIG MODE menu and the trigger
level exceeds the waveform range.
If it is, make the trigger level is centered in the screen or set the trigger mode as Auto. In
addition, with the Autoset button pressed, the setting above can be completed automatically.
6. The displaying of waveform seems getting slow after increasing AVERAGE value in
Acqu Mode (see "How to Set the Sampling/Display" on P29 ), or a longer duration is set in
the Persist in Display (see "Persist" on P29).
It's normal as the Oscilloscope is working hard on many more data points.