Install guide

System Functions

1. Turning on the treadmill

A. The power cord must be plugged into a 120 VAC, 15 or higher amp

dedicated circuit.

B. Turning on the rocker switch provides power (120 VAC) to the

lower PCB.

C. Power to the lower PCB is verified by observing a lighted LED

labeled “+12” at D5.

D. Power (12 VDC) is routed from the lower PCB to the upper PCB

(pin 5 of the eight-pin Telco cable). The upper PCB regulates the

12 VDC into 5 VDC for VR1, which powers the HR power pins and

other components, and 8 VDC for VR2, which powers C-Safe and

CardioKey.

E. On start up, if emergency stop magnet is in place, the display will

emit a beep and it will begin a startup sequence. The upper display

window will show how many times it has been turned on, the left

display window will show the software version, and the right display

window will show the system of measure: English (Bri) or metric

(SI). This information will be displayed for five (5) seconds and

then the upper display window will show a racetrack pattern and

zeros in the other windows.

2. Starting the treadmill

A. Pressing the “Start” button activates the processor, which issues

various commands to start the treadmill. The processor starts the

clock, which is displayed on the upper PCB.

B. The upper middle window on the upper PCB displays six different

parameters (Time, Distance, Pace, Calories, Calories per Hour,

and Heart Rate). The software displays the parameters in the

above order. If the “Select” button is pushed, the displayed

parameter is held. Select button can be pushed repeatedly to

manually toggle through the parameters until desired parameter is

selected. Pressing select again will reactivate automatic toggle

sequence. If the display deviates from the above pattern, the

software is corrupt.

C. The processor issues a command to the lower PCB to close relay

“K1”. This is verified by observing that the “belt” LED at D7 is

illuminated. This allows the rectified line voltage to go to the motor

via PWM.

D. PWM is used to control the speed of the drive motor. The PWM is

adjusted when the user presses speed up or down buttons. The

“PWM” LED D10 should illuminate when belt is moving and

increase in intensity as speed is increased. (PWM signal is the #5

conductor on the six-pin Telco).