Precor C842 Service Manual page 65

9. Orient the keypad cable as noted in step 5 and reconnect the keypad cable to the J3
connector.
10. Assemble the replacement or original upper PCA and display housing as required and
replace and tighten the upper PCA mounting screws.
11. Reconnect the interconnect cable to the J1 connector.
12. Set the display housing at it's mounting position on the display backing plate. Replace and
tighten display housing mounting screws.
13. Check the cycle's operation per Section 4.
14. Remove the screws that retain the display, lift the display and disconnect the interconnect
cable from the J5 connector and the heart rate cable from the J1 connector (when
equipped).
15. Disconnect the keypad cable from the J2 connector.
16. Remove the screws the retain the upper PCA to the display. Remove the upper PCA.
17. Many PCA's are furnished without software, If your PCA does not have an IC chip installed
in the U6 socket, remove the U6 IC chip from the existing PCA (using a IC extractor and
anti-static protection) and install it on the replacement PCA.
18. Set the replacement PCA in its mounting position and fasten it with the screws removed in
step 16.
19. Connect the keypad cable to the J2 connector.
20. Hold the display near its mounting position and connect the interconnect cable to the J5
connector and the heart rate cable to the J1 connector (when equipped).
21. Set the display in its mounting position and fasten it with the screws removed in step 14.
C842, C842i, C846, C846i Upright and Recumbent Cycle
Page 65