LAUNCH X-431TOP User
’
s Manual
15
Diagram of vehicle osciloscope
1 X-431TOP Terminal 2 battery
3 battery cable with w/two clips
4oscilloscope GND cable
5 oscilloscope cable
6 electronically controlled patch cord
Attention: Please use the special capacitance
probe when diagnose the ignition high
tension line. Do not directly connect the
oscilloscope to the ignition secondary circuit.
NOTE:
1.
From cigar lighter: insert one end of the
cigar lighter cable into the lighter socket
in vehicle and connect the other end to
the DC power connector of X-431TOP
Terminal.
2.
From double-clip power cable: connect
one end of the double-clip power cable to
the positive battery and the other end to
the negative.
3.
From power patch cord: connect one end
of the power patch cord to the 100-240V
AC socket and the other end to the jack
of the on-off power. And connect the
power jack to the DC power connector.
Oscilloscope Menu
Fig.7 shows the entering vehicle oscilloscope
menu. (Default
“
trigger
”
menu).
Parameter setting is in the left.
Trigger source: the trigger channel of
oscilloscope[channel(CH1),
channel(CH2),
channel(CH3), channel(CH4)]. The chosen
channel is light.
Trigger mode: (auto
～
normal) and (single
～
continuum). When in the auto mode, trigger as
receive the signal. When in the normal mode,
trigger as satisfied the trigger requirements
(leading edge or trailing edge, trigger level,
trigger point). When in the single mode, triggering
once can display one waveform. When in the
continuum mode, the variation of continuous
waveform can be displayed.
Trigger edge: the leading edge or trailing edge of
waveform. Clicking [leading] or [trailing] can
switch mutually.
Trigger level: the original voltage value of
waveform with regulation by [up] and [down].
Trigger point: to regulate the horizontal position
of signal trigger with [leftward] and [rightward].
Note: When the numerical value and cursor
don
’
t occur, please choose the relevant
channel display in the
“
display setting
”
menu.
Fig3-6
Other functions(refer to the previous
explanation with history, save, print,help funcitons;
gridding: turn on/off gridding). Fig.3-7 shows
“
other
”
interface.