User Manual

8. FAQ
1. The oscilloscope does not power up.
It may be caused by the dead battery. At this time, the oscilloscope will not start even if it is powered by the
battery charger. Firstly, charge the battery and supply the oscilloscope with power through the battery charger.
However, don’t switch on the oscilloscope till waiting for 15 minutes. If the oscilloscope still cannot start,
please contact PEAKTECH for service.
2. The oscilloscope stops working only after operating for several seconds.
Probably the battery is dead; Check the battery symbol at the upper right of the screen. The
symbol
indicates that the battery has been run out of power and must be charged.
3. The measurement type displays ERR when you switch to the Multimeter mode.
Probably you do not select the measuring mode. In this case, push down any key of the three keys V, A or R.
Thus, the relative measuring mode will be shown on the screen. If the ERR is still displayed, restart the
oscilloscope.
4. The measured voltage amplitude value is 10 times larger or smaller than the real value under the
oscilloscope mode.
Check whether the channel attenuation level matches the actual probe attenuation ratio.
5. The waveform is displayed on the screen but is not stable under the oscilloscope mode.
Check on the trigger mode: The edge trigger mode is applicable to the universal single and the video trigger
mode applicable to the video signal. Only when the proper trigger mode is applied, can the waveform be in
stable.
6. There is no display on the screen when you push down RUN/STOP key under the oscilloscope
mode.
Check whether the trigger mode in the trigger mode menu is in normal or single shot and whether the trigger
level is out of the waveform range.
In such condition, adjust and make the trigger level in the middle or select the non-auto trigger mode.
Additionally, press the AUTO SET key and complete the above setting
7. When select the average sampling in the sampling mode or select a longer display time in the
display mode under the oscilloscope, the display speed is slow.
It is normal in the above case.
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