User manual

RIGOL Chapter 4 Troubleshooting
4-2 DP700 User’s Guide
(5) If the problem still persists, contact RIGOL.
4. The screen display is too dark.
(1) Press System to enter the system utility function interface. Press the
Left/Right arrow key or use the knob to select the "Setting" tab.
(2) In the system setting tab, press the Up/Down arrow key to switch the
parameter focus to "Brightness", and then use the num key or knob to
adjust the brightness to a proper state.
5. How do I switch the system language?
(1) Press System to enter the system utility function interface. Press the
Left/Right arrow key or use the knob to select the "Setting" tab.
(2) In the system setting tab, press the Up/Down arrow key to switch the
parameter focus to "Language", and then press the Left/Right arrow key or
use the knob to select the desired language.
6. The RS232 interface cannot work normally.
(1) Check whether the RS232 cable is straight-though and whether it is intact.
(2) Check whether the current RS232 settings of the software match those of
the instrument.
(3) If the problem still persists, contact RIGOL.