Next solder in the two 2N3906 transistor, their mark on the PCB is crossed out. You might have to
straighten its leads a little bit. Also solder the 78L33 voltage regulator, be careful though, they look quite
similar. And their
orientation
should match the print.
Now solder the 16MHz resonator, its an orange component with 3 leads, don't worry it’s
not polarized. Your board should look like this now.
Bottom board back side
Take the 16 pin power connector and place it also on the back side of
the board. It might be tricky to solder it straight, but you can place
something like your cutter under the board to hold it level. Also first
solder in just one of the pins, then take the board in your hand and re
heat that pin while pressing down on the header to align it ( be careful
though, you don’t want to touch the pin you are heating up) wait for it
to cool and solder the rest of the pins. Do the same for the
programming header.
ATTENTION!
Wrong label on the board
.
The 100uF electrolytic capacitors are
replaced with 10uF.
Now, it's time for more capacitors. Take the two 10uF electrolytic
capacitors and place them on front side of the board. Be careful, these
are polarized! capacitors and should be soldered the right way in.
There is a + marking on the circuit board that should match the long
lead of the capacitor, the side is also marked on the body of the capacitor with a white
strip.