
Copyright © Parallax Inc.
Digital I/O Board Kit (#27113)
v1.0 2/19/2010 Page 4 of 13
Step 4:
Install and solder the
Yellow, Red and Green
LEDs in their respective
positions on the PCB as
shown. You may find it
easier to solder these
one at a time.
Step 5:
Install Diodes D17-D24
as shown to the right.
The components stand
on end in the right hole
with the stripe facing up
(as shown in the inset)
and the other lead bent
over into the left hole.
This is vertical
mounting of an axial
component.
Step 6:
If you will be using
input voltages outside
the range of 15-30VDC
then please skip this step
until you read the
section on ‘setting the
input voltage range’.
Install the 1.5K resistors
R25-R32 into the
positions shown at right.
Color code is: Brown,
Green, Red, Gold
Inset shows details.