OWON ODP3031 - Manual (Page 26)

7.Troubleshooting
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7. Troubleshooting
1. The instrument is powered on but no Display.
 Check if the power is connected properly.
 Check if the Power Switch is in the proper voltage scale.
 Check if the fuse which is below the AC Power socket is used appropriately and
in good condition (the cover can be pried open with a straight screwdriver).
 Restart the instrument after the steps above.
 If the problem still exists, please contact Lilliput for our service.
2. The output is abnormal:
 Check if the output voltage is set to 0V. If so, set it to other value.
 Check if the output current is set to 0A. If so, set it to other value.
 When in timer status, check if there is any voltage/current value of timer setting
is set to 0. If so, set it to other value.
 If the problem still exists, please contact Lilliput for our service.
3. Cannot identify the USB device correctly:
 Check if the USB device is in good condition.
 Check if the used USB device is a flash device, note a hard disk cannot be
supported.
 Restart the instrument and insert your USB flash device again.
 If the problem still exists, please contact Lilliput for our service.