How to detect the PCBA and motor
21
3) Measure the MOSFET in the PCBA (Step 2)
a) Keep the multimeter function setting at “Diode
measuring”.
b) Pierce black pen pin of the multimeter into the
sealing glue and force the pin contacting onto
one side of the fuse.
c) Contact the red pen pin to the three
connectors separately and measure the voltage.
d) If the LCD displays 0.45~0.55V for each
measurement, go to the next testing step,
otherwise means the PCBA is broken. Follow
the procedure “Replace the PCBA” to replace a
new PCBA.
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