RIGOL DM3068 - Manual (Page 139)

Chapter 4 Troubleshooting RIGOL
User’s Guide for DM3068 4-1
Chapter 4 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 ( T/C  Info).
1. The screen is still dark (no display) after power on.
1) Check whether the power cord is well connected.
2) Check whether the power switch on the rear panel is switched on.
3) Check whether the fuse is burned out. If the fuse needs to be changed,
please use the specified fuse.
4) Restart the instrument after finishing the above inspections.
5) If the problem persists, please contact
RIGOL.
2. The reading does not change when a current signal is input.
1) Check whether the test lead is correctly inserted into the HI and LO
terminals of current measurement.
2) Check whether the current fuse at the rear panel is burned out.
3) Check whether the DCI or ACI measurement function is enabled.
4) Check whether the DCI measurement function is used to measure AC
current.
3. The reading is abnormal when a DC signal is input.
1) Check whether the test lead is correctly inserted into the HI and LO
terminals of current measurement.
2) Check whether the current fuse at the rear panel is burned out.
3) Check whether the DCI or DCV measurement function is enabled.
4) Check whether the ACI measurement function is used to measure DC
current.
4. The USB storage device cannot be identified.
1) Check whether the USB storage device is in good condition.
2) Make sure the USB storage device you used is a flash storage device. This
instrument does not support hardware storage type.
3) Check the capacity of your USB storage device. It is recommended that