LAUNCH Android-based Scopebox User’s Manual
1 Foreword
1.1 Introductions
The scopebox is an optional add-on module for Launch’s
Android-based diagnostic tool, including automotive oscilloscope and
automotive ignition waveform.
Automotive oscilloscope can make the auto repair technician quickly judge
the faults on automotive electronic equipment and wiring, and the
oscilloscope sweep speed is far greater than the signal frequency of such
vehicles, usually 5-10 times of the measured signal. The automotive
oscilloscope not only can quickly acquire the circuit signal, but also can
slowly display the waveform to observe and analyze. It can also record and
store the tested signal waveform which can be recalled to observe for the fast
signal, having great convenience to failure analysis. Either high-speed signal
(e.g.: Injection nozzle, intermittent fault signal) or the slow-speed signal (e.g.
the throttle position change and the oxygen sensor signal) can be observed
through automotive oscilloscope in an appropriate waveform.
The electronic signal can be compared and judged via measuring five
parameters indexes. The five parameters are the amplitude (the maximum
voltage of signal), the frequency (the cycle time of signal), the shape (the
appearance of signal), the pulse width (the duty cycle or the time range of
signal), and the array (the repetition characteristic of signal), which can be
tested, displayed, saved by the automotive oscilloscope. Via the waveform
analysis can further detect the circuit fault on sensors, actuators, circuits, and
electronic control units, etc.
1.2 Product features
y Rapidly capture the circuit signal.
y Display waveform slowly for observation and analysis.
y Record and store the tested signal waveform for playback and failure
analysis.
y Detect, display and store all the electrical signal of five parameters, namely
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