Elenco Deluxe Snap Rover&reg - Manual (Page 10)

-9-
Advanced Troubleshooting
(Adult supervision recommended)
Elenco ® Electronics is not responsible for parts damaged due to
incorrect wiring.
If you suspect you have damaged parts, you can follow
this procedure to systematically determine which ones
need replacing:
1. Rover body and jumper wires: Flip the Rover body
upside down and make sure the wheel mechanisms
are clean. Install batteries in the Rover body and
connect jumper wires to the Rover rear as shown; two
wheels should move. Replace the orange and gray
jumper wires with each of the other colors to see if any
of the jumpers are damaged. If the wheels don’t move
for any combination of wires, then the Rover body is
damaged. Remove the gray wire; four LEDs on the side
should light.
Now move the jumper wires to test the other two
wheels, if they don’t move then the Rover body is
damaged. Remove the gray wire; four LEDs on the side
should light.
2. Slide switches (S1) and press switch (S2): Build Project #51 (Helpless
Rover) and test each slide switch by making it turn the wheels on/off. Replace
the slide switch with the press switch; it works the same way.
3. Snap wires: Build Project #6 but replace the switch with each of the snap
wires (including the 1-snaps), test them one at a time.
4. White LED (D4) and 100 Ω, 1K Ω, 10K Ω, and 100K Ω resistors (R1, R2, R4,
R5): Build this mini-circuit and turn on the switch, the LED should be bright or
it is damaged. Replace the 3-snap with each of the resistors (one at a time),
the LED should be bright with R1, slightly dimmer with R2, much dimmer with
R4, and very dim with R5; if not then the resistor is defective.
5. Disc Launcher (DL) module: Build Project #42 (Disc Launcher). The launcher
should start up and launch discs as described. If the launcher is jammed,
turning off the circuit and removing all discs can usually fix it.
6. Sound & Recording IC (U9) and the 1 μ F and 100 μ F capapacitors (C7,
C4N): Build Project #62 (Lunar Messenger); the parts should work as
described in it.
7. Remote control unit and Deluxe Receiver (RX2): Build Project #36 (Remote
Control Right Lite) and test that the wheels and white LED (D4) can be
controlled by the remote control unit as described. Be sure you have built the
circuit correctly and have good batteries in both the Rover body and remote
control. Have the A-B-C switches on the remote control and deluxe receiver set
to the same channel, have turned on the remote control turned on and its
antenna extended, and make sure it is not being interfered with by other remote
control transmitters.
Elenco ® Electronics, Inc.
150 Carpenter Avenue • Wheeling, IL 60090 U.S.A.
Phone: (847) 541-3800 • Fax: (847) 520-0085
e-mail: [email protected] • Web site: www.elenco.com
You may order additional / replacement parts at:
www.snapcircuits.net
RO VER REAR
RO VER REAR
ROVER REAR