Teledyne T3DSO1000, User Manual, Page: 220 / 227

202 User Manual
Troubleshoo�ng
The commonly encountered failures and their solutions are listed below. Please contact
Teledyne Test Tools if the problem is not listed below and you need further assistance.
1. The screen has no display after power on:
1) Check whether the power is correctly connected.
2) Check whether the power switch is on.
3) Check whether the fuse has blown. If the fuse needs to be changed, please
use the specified fuse.
4) Restart the instrument after finishing the above checks.
5) If it still does not work correctly, please contact Teledyne Test Tools.
2. The signal is sampled but no waveform is displayed:
1) Check whether the probe is correctly connected to the DUT waveform.
2) Check whether the probe or BNC cable is correctly connected to the oscilloscope
BNC.
3) Check whether the oscilloscope channel is turned on.
4) Check whether there are signals generated from the item to be tested (you can
connect the probe compensation signal to the oscilloscope channel to ensure
that the scope channel and probe are working correctly).
5) Resample the signal, press Run.
3. The tested voltage amplitude is greater or lower than the actual value (note that
this problem usually occurs when a probe is used):
Check whether the attenuation coefficient of the channel complies with the
attenuation ratio of the probe.
4. There is an unstable waveform display:
1) Check that the trigger signal source has a suitable signal to trigger on.
2) Check the trigger type: general signals should use the “Edge” trigger.
3) Change the trigger holdoff setting if the signal is a burst type waveform.
5. No display after pressing Run/Stop:
Check whether the trigger mode (TRIGGER) is on “Normal” or “Single” and whether
the trigger level exceeds the waveform voltage range. Try setting the trigger level to
the middle of the expected waveform voltage range, or set the mode to “Auto”.
Note: using AUTO will automatically trigger the scope whether there is a waveform
present or not.