Precor 9.31 Service Manual page 20

6. Carefully, lift the display housing front panel off of the display housing backing plate.
Disconnect the heart rate cable and stop switch cable from the upper PCA.
7. Disconnect the keypad connector from the upper PCA. See Diagram 5.2.
Diagram 5.2 - 9.35 Upper PCA & Keypad
Upper PCA
Stop Switch
Connector
Interconnect
Cable
Connector
Keypad
PCA
8. Remove the interconnect cable from its retaining clip, See Diagram 5.1. Holding the display
housing by the plastic portions, do not handle the upper PCA or keypad PCA, reconnect the
interconnect cable to the upper PCA.
9. Set the circuit breaker in the "on" position.
10. If a "key depressed" message is immediately displayed when the treadmill is powered up,
replace the upper PCA.
11. If a "key depressed" message is not displayed when the treadmill is powered up, replace the
display housing front panel. The display housing front panel is equipped with the keypad.
12. If you have performed all of the procedures above and have been unable to correct the
problem, call Precor customer service.
13. Access the diagnostics program per procedure 2.1. If the key(s) necessary to access the
diagnostic program is not functioning, skip to step 14.
14. Test the keypad per Procedure 2.1, step 6.
15. If all of the keys test good, the problem may be user error or a key function that is normally
disabled during a particular user program.
9.31, 9.33, 9.35 Treadmill
Heart Rate
Connector
Keypad
Connector
Page 20