How to detect the PCBA and motor
18
a) Set the multimeter function to “Resistance measuring” .
b) Pierce one pen pin of the multimeter into the sealing glue and force the pin contacting
onto one end of the fuse, then pierce another pen pin into the sealing glue and contacting
onto the other end of the fuse.
c) If the resistance is below 1 Ω, means a good fuse, go to the next testing step; otherwise
means a broken fuse.
d) If the fuse is broken, follow the procedure “Replace the PCBA” to replace a new PCBA.
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