14
If you see reflected I.R. light, perform a continuity check
to make sure the signal from the I.R. receiver is getting
back to the Main PC Board.
If you have no reflected light and it has been established
that there is power, you have a defective TRANSMITTER.
If you have reflected light and have established that the
wiring between the receiver and Main PC Board is good,
there is a high probability that the receiver is bad.
There is one final check you can make to be sure the
problem is not on the Main PC Board. Use a wire jumper
or paper clip and jump between pins 12 & 14 on the P5
connector of the Main PC Board. If you do this when a
game is in progress, a “swish” sound should be heard
each time you MOMENTARILY jump those terminals. If
the sound is heard, and the wiring to the sensor is good,
and the transmitter works correctly, then the receiver is
definitely bad.
If you need to replace either of the sensors, refer to the
“Hoop Sensor Replacement” section in the mechanical
repair area for directions on how to replace the sensors.
MAINTENANCE & TROUBLESHOOTING
