Elenco Electronics SC3DMEG Instruction Manual page 12

Advanced Troubleshooting
Elenco 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:
Lamp (L4), blue LED (D9), blink red LED (D11), color2 LED
1.
(D12), melody IC (U32), and battery holder (B3):
batteries in holder. Place the lamp directly across the battery
holder, it should light. Place the LEDs (D9, D11, & D12) directly
across the battery holder one at a time (LED + to battery +),
the LED should light (D11 should be blinking, and D12 should
slowly change colors). Place the melody IC directly across the
battery holder (+ to +), it should play a tune. If none work, then
replace your batteries and repeat, if still bad then the battery
holder is damaged.
Clear motor (M4) and orange motor (M9):
2.
motor directly across the battery holder, the shaft should spin
(you can place the green fan on the shaft so the spinning is
easy to see). Place the orange motor directly across the battery
holder (note that the middle snap on the motor is not used), the
shaft should spin.
Jumper wires:
3. Use this mini-
circuit to test each jumper wire,
the lamp should light.
4.Vertical snap wires (V1) and 45
degree vertical snap wires (V2):
Use this mini-circuit to test each of
the vertical snap wires (V1 & V2),
one at a time. The lamp should
light.
-11-
Snap wires:
5.
wires, one at a time. The lamp
should light.
Slide switch (S1), press switch (S2), and reed switch (S9):
6.
Place
Build project 1; if the color2 LED (D12) doesn't light then the
slide switch is bad. Replace the slide switch with the press
switch to test it. Replace the press switch with the reed switch
and hold the magnet near it to test it, there should be a magnet
position that turns on the LED, or the reed switch is bad.
Place the clear
You may order additional / replacement parts at:
(Adult supervision recommended)
Use this mini-circuit to test each of the snap
ELENCO
150 Carpenter Avenue
Wheeling, IL 60090 U.S.A.
Phone: (847) 541-3800
Fax: (847) 520-0085
e-mail: help@elenco.com
Website: www.elenco.com
www.snapcircuits.net
®