SDS2000 X HD Ser vice Manual
59
Check the trigger signal source: Check whether the source item at the trigger panel complies
with the signal channel used.
Check whether it is a " false wave
”: When the signal frequency is very large ( more than half
of the sample rate ), it is easy to appear as a " false wave " because of the violation of the
Nyquist theorem. At this point, a smaller time base should be set to make the sample rate is
more than 2 times the signal frequency.
Check the trigger type: G
eneral signals should use the “ Edge ” trigger and video signals
should use the “ Video ” trigger. Only when the proper trigger type is used, can the waveform
be displayed stably.
Change the trigger holdoff setting.
8.
No display after pressing Run / Stop :
Check the trigger mode in the trigger menu ( TRIGGER ). Set
to “ Normal ” or “ Single ” and
ensure that the trigger level is set near the middle of the expected waveform amplitude or
set the mode to “ Auto ”.
Note:
Using Auto Setup can automatically finish the above setting.
9.
Touch screen does not respond to touch operation:
Check whether the Touch button backlight on the front panel is lighted up. If not, the touch
screen is not turned on. Press the button to enable the touch screen
Restart the instrument.
10.
The USB storage device cannot be recognized:
Check whether the USB storage device is operating correctly on another piece of equipment
or computer.
Make sure the USB interface is working normally.
Make sure that the USB storage device being used is flash storage type. This oscilloscope
does not support hardware storage types.
Make sure that the U disk system format is FAT32.
Restart the instrument and then insert the USB storage device to check it.
If the USB storage device still cannot be used normally, please contact
SIGLENT
.
