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16
INTERCONNECTIONS & TESTING
Solder the red wire from the ON/OFF switch
to this solder pad. BE CAREFUL TO AVOID
TOUCHING NEARBY PADS!
Solder the black wire from the
battery contact to this solder
pad. BE CAREFUL TO AVOID
TOUCHING NEARBY PADS!
Resistance Tests
Remove one or all of the "AA" batteries from the car
for these tests.
Switch connections: Using a multimeter set to
ohms, measure from the front-left battery contact
(which has a wire to the ON/OFF switch) to
where you soldered the red wire (also from the
ON/OFF switch) to the printed circuit board
(PCB). This should be 0W when the ON/OFF
switch is ON and infinite when the switch is OFF.
V
to ground: Set the ON/OFF switch to ON.
cc
Measure from the front-left battery contact to the
front-right battery contact (which has the black
wire soldered to it). The resistance will initially be
<10kW but will slowly rise to around 45kW as the
capacitors in the circuit charge up.
If you don't get these results then re-check your
work.
V
Wire
cc
Red wire
from switch
Black wire from
battery contact
Ground Wire
-21-
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Troubleshooting
