EMBED <iframe src="https://archive.org/embed/pocket-pcapplication-2nd-ed" width="560" height="384" frameborder="0" webkitallowfullscreen="true" mozallowfullscreen ...
21: Ground [from AC power cable] I recommend sliding off the plastic cover below the pin connector and accessing the pins where they are soldered onto the circuit board of the bill acceptor, since ...