User Manual

Placement Level Numbers
!
WARNING:
Moving parts.
Do not touch
the fan during
operation.
Use the project 4 circuit but select game 2 or
3 (instead of game 1). Some parts of the
arcade show happen faster now, such as the
changing random pattern on the U29 LED
display.
Project 5
Fast Arcade
Use the project 4 circuit (with game 1, 2, or
3), but replace the disco cover with the other
one that is included. Place the circuit in a dark
room for best effects.
Project 6
New Pattern Arcade
Build the circuit shown above by placing all the parts
with a black 1 next to them on the board first. Then,
place parts marked with a 2, and then parts with a
3. Connect the jumper wires (red, black, orange, and
blue) as shown in the drawing. Install three (3) “AA”
batteries (not included) into the battery holder (B3)
if you have not done so already. Place the disco
cover support bar on the disco motor (DM) shaft,
and place one of the disco covers on it; note that
both sides of the support bar are “D-fit”.
Turn on the slide switch (S1). The programmable fan
(M8) spins, the red & green LEDs (D1 & D2) light, and
the display on the LED-MC (U29) displays “00”. Push
the press switch (S2) to light the yellow LED (D10).
Make the display on the LED-MC show “01” by
pressing the A button on the selector (S8) to
increase the ones digit on the display. Press the B
button on the selector to select the game (now
game 1), and a mini arcade show begins.
Every few seconds the speaker plays a tune while
the disco motor spins & lights, and/or the U29 LED
display shows a random pattern.
If you want to change games then turn off S1 to
reset the circuit. You can make the sound louder by
removing the disco motor and NPN transistor (Q2).
-14-
This circuit is shown on the
front of the Snap Circuits
®
Arcade box. Use that
picture to help in building it.
Project 4 Arcade
Disco Cover Assembly
+
YELLOW
Note: this is a 3-snap wire
connecting these points.
Disco Cover
SUPPORT BAR
DM
shaft
Flat side (“D-fit”)
Flat side (“D-fit”)
Disco Cover
Support Bar