Launch X431 Scopebox User Manual page 70

LAUNCH
3 Automotive Oscilloscope
3.1 Connection
X-431 GDS Scopebox should work with the X431 GDS main unit.
1. Firstly, power on the main unit (Connect one end of the power
adaptor into the power interface of main unit, and the other end
to the DC 12V power supply. Alternatively it can be also powered
by cigarette lighter cable and double clip power cord).
2. Then plug one end of ground cable of oscilloscope into external
trigger channel (GND), the other end should be grounded.
3. Connect one end of probe cable of oscilloscope to the CH1, CH2,
CH3, or CH4 on oscilloscope module, and then connect the
other end to related signal terminal.
Warning: please use the specific capacitance probe when
diagnosing the ignition high voltage line. Never connect the
oscilloscope to the ignition secondary circuit directly.
3.2 Initial interface introduction
Fig. 3-1 displays the initial interface of oscilloscope.
X431 GDS Scopebox Manual