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45. F.A.Q
1.
In the case of that the oscilloscope is still in the black-screen state without any display after the
power is switch on, implement the following fault treatment procedure.
*
Check whether the power connection is connected properly.
*
Check whether the power switch is pushed down to the designated position.
*
Restart the instrument after completing the checks above.
*
If this product still cannot work normally, please get in touch with Lilliput and we will be under your
service.
2.
After acquiring the signal, carry out the following operations if the wave form 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 greater or smaller than the actual value.
Check whether the channel attenuation coefficient and the attenuation ration of the probe used in
practical application is match.
Fig. 111 Wave Form Obtained from the Video Line Trigger
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