Technical Operation
Wheel Position
Wheel position in Red Hot X-Treme 7s is determined by
an optical sensor that communicates with the CPU board.
The CPU receives a HOME signal from an optical sensor
located behind the wheel. There is a pin inserted into the
wheel and when the pin passes thru the optical sensor it
blocks the beam then the sensor sends a signal to the
CPU telling it that it has detected HOME pin. This
HOME signal lets the CPU know the exact position of
the wheel.
A stepper controller board (SCB) controls a stepper
motor that rotates the wheel. The wheel rotation is
broken up into many “Steps” and the CPU counts these
“steps.” Because the CPU knows where the HOME
position is and it’s counting every “step” it knows
exactly where the wheel is at any time.
Scoring- ball sensor
There is an optical transmitter located on the left side of
the wheel that transmits a beam through the holes in the
wheel and a receiver behind the wheel that detects the
beam. When a ball falls into a slot it blocks the optical
beam and its position is sent to the CPU. Since we know
the position of the wheel at all times we can identify
each hole and know it is a RED HOT or a MYSTERY
BONUS hole. The CPU counts how many RED HOT or
MYSTERY BONUS balls a player has and awards the
corresponding number of tickets
The Red Hot X-Treme 7s has a secondary power
supply which powers most of the LED lights throughout
the game.
Stepper Controller
Board
Optical Sensors
Optical Receiver
Home Optical
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