15 Troubleshooting - Rigol DS4000 Series User Manual

15 Troubleshooting

15 Troubleshooting
The commonly encountered failures and their solutions are listed below. When you
encounter those problems, please solve them following the corresponding steps. If
the problem remains still, please contact RIGOL and provide your device
information (Utility  System  System Info).
1. The screen is still dark (no display) after power on:
(1) Check if the power is correctly connected.
(2) Check if the power switch is really on.
(3) Check if the fuse is burned out. If the fuse needs to be changed, please
return the instrument to the factory and the RIGOL authorized personnel
will change the fuse for you.
(4) Restart the instrument after finishing the above inspections.
(5) If it still does not work correctly, please contact RIGOL.
2. The signal is sampled but no waveform of the signal is displayed:
(1) Check if the probe is correctly connected to the signal connecting wire.
(2) Check if the signal connecting wire is correctly connected to the BNC
(namely channel connector).
(3) Check if the probe is correctly connected to the item to be tested.
(4) Check if there are signals generated from the item to be tested (you can
connect the probe compensation signal to the problematic channel to
determine which has problem, the channel or the item to be tested).
(5) Resample the signal.
3. The tested voltage amplitude is greater or lower than the actual value
(note that this problem usually occurs when probe is used):
Check whether the attenuation coefficient of the channel complies with the
attenuation ratio of the probe.
4. There is waveform display but not stable:
(1) Check the trigger signal source: check whether the Source item at the
trigger panel complies with the signal channel actually used.
(2) Check the trigger type: general signals should use "Edge" trigger and video
DS4000 User's Guide
RIGOL
15-1