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(6) Referring to the photos below, identify the four 12-pin Molex female connectors you
will install at J101-J104 and the two 4-pin Molex female connectors to be installed at
J105 and J106. Now identify the 12-pin and 4-pin straight male headers whose pins will
mate with these connectors.
12-pin Molex 0.156” female PCB connector and matching 12-pin header
As shown below, push a matching male header into each of the six connectors (long pins
go into the connector), making sure the headers are seated fully into the connectors. Now
solder the pins of all six Molex connectors (NOT the header pins) to the main circuit
board (56 pins in all
).
Be sure you orient the connectors to the silkscreened outline on
the circuit board, and be sure the connector pins go into holes in the round pads in
the circuit board and not in the square pads.
(Hint: Solder an end pin on each
connector first, so you can make certain the connector bodies are seated flat against the
main circuit board. Then solder the remaining pins.)
Leave the headers plugged into the
connectors; they will be soldered into the microcontroller circuit board in a later step.
(7) Install the Molex 0.156” 4-pin male connector (with locking clip) shown below at
P102.
The Molex 0.156” male connector with locking clip installs at P102
(8) Install the fuse clips at F1.
(Hint: Insert the 1A fuse into the clips to hold them in
place and to make sure you don’t install the clips backwards.)
