Precor Precision 400 Series Service Manual page 120

4. Disconnect the attached cables: the magnet cable (J1), the speed sensor cable
(J8), the lift drive cable (J4), the lift position cable (J6), the data cable (J10),
green-yellow ground wire and A.C. cables (J2-brown wire & J3-blue-wire) from
the lower PCA.
Contact Precor Customer Support at support@precor.com or 800.786.8404 with
any questions.
6 Available Replacement Procedures
Lower PCA (LPCA) Replacement
Page 112