Precor Precision 400 Series Service Manual page 155

1. Switch the power OFF and
2. Remove these rear drive covers: the drive cover access panel, top, left, and right
drive covers (see
3. Unsnap and remove the
1. Disconnect the speed sensor interface cable from the LPCA J8 connector.
2. Unsnap the speed sensor assembly from the speed sensor bracket and remove.
1
Disconnect a device power cord plug or cable connector from the power receptacle or out-
let.
2
Lower Printed Circuit Assembly board; also refered to as the Lower PCA or simply as the
lower board. On treadmills, it is the console to base function interface and the motor con-
troller unit (MCU). On self-powered units, it is the lower PCA console to base function inter-
face.
Contact Precor Customer Support at support@precor.com or 800.786.8404 with
any questions.
1
unplug the power cord.
"Covers and Panels Replacement" on
2
LPCA cover (no mounting screws).
6 Available Replacement Procedures
Speed Sensor Assy Replacement
page 75).
Page 147