Cybex 425T Treadmill Service Manual
Figure 17
Elevation
COM
Elevation
UP
Elevation
DOWN
Elevation
Ground
Ground
Cable
Elevation
Switch P1
Display
Cable P3
Display
Cable P4
Speed
Sensor P2
AC Line
Neutral
White AC2
AC Line
Neutral
Black AC1
Mounting
Screw (2)
Black
Motor
-A2
Red
Motor +
A1
2. Remove the lower control board.
A. Raise the motor base plate.
B. Using a Phillips head screwdriver, remove the two screws that hold the lower control
board to the motor base plate.
C. Lower the motor base plate.
D. Using a Phillips head screwdriver, remove the two screws that hold the lower control
board to the motor base plate. See figure 17.
E. Remove the lower board. NOTE: Cybex may want this part back for evaluation.
Contact Cybex Customer Service at 800-766-3211.
3. Replace the lower control board and bracket.
NOTE: Wear an ESD strap for the rest of this procedure.
A. Position the lower control board bracket in place on the motor base plate.
B. Using a Phillips head screwdriver, install the two screws that hold the lower control
board to the motor base plate. Do not fully tighten at this time.
C. Raise the motor base plate.
D. Using a Phillips head screwdriver, install the two screws that hold the lower control
board to the motor base plate.
E. Lower the motor base plate and fully tighten the screws installed in step 5B.
Service
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