RS PRO 123-6438, Quick Start Manual

Page: 29 / 152

29
Troubleshooting
The general failures and consequential solutions are listed below.
When you find them, please deal with them in the following
corresponding ways.
1. The screen remains dark after power on:
(1) Check if the power is correctly connected.
(2) Check whether the fuse is burned out. If the fuse needs to be
changed, pleasereturn the instrument to have it repaired by
qualified personnel.
(3) Restart the instrument after completing inspections above.
2. After the signal is sampled, there is no corresponding
waveform displaying:
(1) Check if the probe is correctly connected to the signal
connecting cord.
(2) Check if the signal connecting cord is correctly connected to
BNC.
(3) Check if the probe is correctly connected to the item under
test.
(4) Check if there are signal generated from the item under test
(you can connect the probe compensation signal to the
problematic channel to determine the reason to the problem )
(5) Resample the signal.
3. The voltage amplitude measured is higher or lower than the
actual value (the error usually occurs in use of the probe):
Check if the attenuation coefficient of the current channel
matches with the attenuation ratio of the probe.