Axiris Arduino Manuel d'assemblage - Page 12

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IV-3 VFD shield for Arduino

VFD tube mounting

Guide
the
tube
through their respective holes on
the PCB. Make sure the short lead
on the tubes goes through the
hole without solder pad.
Now the digits should face the
front of the PCB.
If you have difficulties getting the
wires of the tubes through the
holes you can cut them as a
"spiral" so you can move 1 wire at
a time through the holes. Pay
attention to make the shortest
wire not too short as we are going
to mount the tubes with some
distance from the pcb.
Once the tubes are in place align
them more or less by hand. The
bottom of the tubes should be
approximately 1-2 mm below the
top
of
the
Arduino
headers.
If you are using the optional
acrylic enclosure, you can use the
top and bottom plates as an
alignment tool.
Solder two leads of each tube to
the PCB. Once this is done, you
can still adjust the tube alignment
by reheating the solder joints.
If you are satisfied with the tube
alignment, you can finally solder
the remaining tube wires in place
and trim the excess leads with a
small wire cutter.
Do
not
try
to
alignment of a tube after it is
soldered in place as this may
cause mechanical stress and
may lead to a defective tube.
12
wires
gently
stackable
change
the
Assembly Manual