[Meggy Jr RGB]
[10]
STEP 8: Crystals & Caps
Upper right corner of circuit board:
Part
#11
is an 18 pF ceramic capacitor
Add two capacitors at locations
C7
and
C8
.
(Like resistors, you can put these in either way.)
Note: The labels on these tiny capacitors are
approximately
invisibly small
-- they are the two little
caps that are bagged and/or taped together.
Part
#12
is a 16 MHz crystal oscillator
A shiny steel can. Install this component in location
XTL
on
the circuit board, flush to the board as usual. The two pins go
in the outer two holes of location XTL; you can ignore the
middle hole. (Orientation: Either way.)
Part
#13
is a 1200 µF capacitor
After a little prep, this component will be installed
in location
C3
.
Orientation matters: the
negative
side of the
capacitor is marked with a broad white stripe.
Note
: The side of the crystal oscillator
may (or may not) rub up against one
pin of the microcontroller (U1). This
is not a concern in either case.
+
-
1
.
Orient the capacitor with the negative side
(the side with the broad stripe) facing you.
Grip it, near the top, with your fine point
pliers as shown.
2
.
Bend the leads down 90°, so that they
stick straight down.
(Gripping them with the pliers while bending
lets you make a tight bend with only minimal
stress on the device.)
