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169
directly by tapping the X button.
Figure 7-86 Sample Measurement Display Screen (Spectrum View)
7.1.6 Troubleshooting
A. If the oscilloscope cannot communicate with the MaxiSys Tablet:
Ensure the VCMI device is properly connected to the MaxiSys Tablet via Wi-Fi or
with the supplied USB cable.
Restart the MaxiSys Tablet and reconnect the VCMI device if communication
between the two continues to fail.
B. If unwanted signals are displayed or signals are distorted:
Use only the supplied test leads or probes to connect with the input channels.
Check the test leads or probes for damage.
Ensure the polarity of the test leads connections are correct.
Ensure the signal and ground connections are clean and secure.
Ensure the ground lead is providing a direct ground from the circuit to the input
channel.
Isolate the test leads from other components, leads, or systems that may induct
unwanted noise into the signal being tested including the electric motors,
secondary ignition components, relays, alternators.
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