Rigol DG900 Series, Руководство по обслуживанию

Страница: 21 / 24

Chapter 2 Troubleshooting&Maintenance RIGOL
DG900 Service Guide 2-1
Chapter 2 Troubleshooting&Maintenance
Basic Troubleshooting
The commonly encountered failures of DG900 and their solutions are listed below. If the following
problems occur, locate and resolve the problems according to the following steps. If the problems still
persist, contact RIGOL and provide your instrument information to us. (For instrument information,
press Utility

System Info.)
1. When I power on the instrument, the instrument stays black and does not display
anything.
1) Check whether the power is correctly connected.
2) Check whether the power key is really pressed.
3) Restart the instrument after finishing the above inspections.
4) If the problem still persists, please contact RIGOL .
2. The screen is too dark to see the contents on the screen clearly.
1) Check whether the brightness settings is too low.
2) Press Utility

DispSet to enter the display setting menu. Tap the Brightness menu label
and use the numeric keypad to adjust the brightness of the screen to an optimal state. You
can also use the arrow keys and the knob to adjust the brightness.
3. The generator is locked.
1)
Check whether the generator is working in remote mode (in remote mode, is displayed
in the status bar of the user interface). Press Help/Local to exit the remote control mode,
unlock the front panel and the touch screen.
2) Restarting the generator can also unlock the generator.
4. The settings are correct but no waveform is generated.
1) Check whether the BNC cable is connected to the corresponding channel output terminal
([CH1] or [CH2]) tightly.
2) Check whether the BNC cable has internal damage.
3) Check whether the BNC cable is connected to the test instrument tightly.
4) Check whether the backlight of Output1 or Output2 is turned on. If not, press the
corresponding key to illuminate the backlight.
5) After finishing the above inspections, press Utility

System Setting

Power-on to
select "Last" and then restart the instrument.
6) If the problem still persists, please contact RIGOL .
5. The USB storage device cannot be recognized.
1) Check whether the USB storage device can work normally when connected to other
instruments or PC.
2) Make sure that the USB storage device is FAT32 format and flash type. The generator doesn’t
support hardware USB storage device.
3) After restarting the instrument, insert the USB storage device again to check whether it can
work normally.
4) If the USB storage device still cannot work normally, please contact RIGOL.
6. How do you set the amplitude of the waveform in dBm?
1) Select the desired channel.
2) In the channel setting interface, check whether OutputSet

HighZ is set to "On". If yes,
you cannot set the amplitude of the waveform in dBm at this time. Select "Off" to disable the
HighZ, and use the numeric keypad, the arrow keys, and knob to set it to a proper value.