Transcript here - Rothfus.com

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Be CAREFUL about the direction
the ICs are mounted. Line up the
notch on the board with the socket
or IC.
•
Use the 7-pin sockets to mount
the display.
It needs to be
mounted higher than the screws
holding the battery holder.
•
The pins on the transistors need
to be shaped into a triangle and
mounted on the board with the flat
side facing the display.
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Unfold this manual to see a
picture of mounted transistors and
more hints.
Special thanks to:
Be SURE to use an IC socket for
IC1 (the PIC processor). There
will be other RetroGames and you
will need to replace this part to
play them.
For sponsoring the PCBs!
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Hints
December 2006 – EJR
[email protected]
RetroGame
Construction
Notes
RetroGame
Retro Game
Building the RetroGame is pretty
easy if you’ve had soldering
experience. This manual points out
some of the more important details.
Parts List
2 small screws and nuts

5x7 LED display

two 7-pin sockets for display

2-pin battery connector

Battery clip and holder

2 push-buttons

Speaker

IC2 = 74LS374N

IC1 = PIC16C622A or 16C620P

Q1 – Q5 = 2N2907 or 2N3906

C2 = 1 μF

C1 = 10 pF – OK to leave out

R12 – R16 = 1 k Ω
(brown, black, red)

R1 – R7 & R17 = 100 Ω
(brown, black, brown)
R8 – R10 = 10 k Ω
(brown, black, orange)

7805T = 5-volt regulator


7-pin sockets
(hidden)
May be
omitted
Pin 1
Optional
Socket
Pin 1
Flat top of
switch
Use
Socket
Make sure that the flat side of the
push-buttons is facing the top of
the board.
The bottom of the little speaker
has + (plus) and – (minus) pins.
Put the + pin in the hole closest
to R17.
The display can be inserted in
either orientation. There’s no
“top” or “bottom” of the display.
Insert the screws for the battery
holder from the bottom of the
board. This makes the battery fit
better.
Insert the battery clip through the
hole in the bottom of the board,
and tie a loose knot to keep it
from falling out.
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More Hints
RetroGame v1.1