Atten ADS1000 Series, Руководство по обслуживанию

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Service Manual
Troubleshooting
1. After the oscilloscope is powered on
，
， ，
，
the screen remains dark
，
， ，
，
please do as following
steps
： ： ： ：
Check the power cable’s connection.
⑴
Ensure the power switch
⑵
is turned on.
After the inspections above
⑶ ，
restart the oscilloscope.
⑷
If the oscilloscope is still not used after the checking, please contact with ATTEN company
2. If there is no signal wave in the screen after gathering the signal, please do as following
steps:
(1) Check whether the probe have connected with the signal cable or not.
(2) Check whether the signal cable have connected with the BNC connector or not.
(3) Check whether the probe has connected with the goods tested or not.
(4) Check whether tested goods have produced the signal or not.
(5) Gather the signal again.
3. The value of the tested voltage is 10 times higher/lower than the real one , please do as
following steps:
Check the attenuation quotient whether match the probe attenuation proportion or not.
4. Display the wave, but not steady, please do as following steps:
(1) Check the signal source on the trigger interface whether or not matches the signal channel.
Check the trigger mode: normal signal should use the “edge” trigger mode. The video signal
should use the “Video” Trigger mode. The signal would display steady, only using the
matching trigger mode.
(2) Attempt to change the “coupling” into “HF Reject” or “LF Reject” display, so that the
High/low frequency noise disturb the trigger should be filtrated
5. Press “RUN/STOP” button, but no display.
Check the trigger mode on the trigger interface whether or not in the “normal” or “single”, and
check the trigger level is whether or not over the wave range. If yes, please put the trigger level to
the middle position or set the trigger mode to the “Auto” position. In another hand, you could
choose the “Auto” button to set up automatically.
6. After the Acquisition is set to Averages or Display Persistence time is set too long, the
waveform refreshes slowly.
It is normal in these settings
7. The signal is displayed as ladder like waveform
(1)This phenomenon is normal. The time base maybe is too slow .you should turn the horizontal
SCALE knob to increase horizontal resolution to improve the display.
(2) Maybe the display Type is set to “Vectors”, You could set it to Dots mode to improve the
display.