Precor 9.31 Manual page 19

5. Carefully, lift the display housing front panel off of the display housing backing plate.
Disconnect both keypad cables from the upper PCA. See Diagram 5.2. Note: If the STOP
switch cable is disconnected or the STOP switch is activated or defective the message
STOP SWITCH will be displayed.
Diagram 5.2 - 9.33 Upper PCA & Keypad
Upper
Keyboard
Cable
Lower
Keyboard
Cable
Data Cable
6. If the STUCK KEY message is still displayed, replace the upper PCA. If the STUCK KEY
message is no longer displayed, replace the display panel.
7. If you have performed all of the procedures above and have been unable to correct the
problem, call Precor customer service.
8. Test the keypad per Procedure 2.1.
9. Access the diagnostics program per procedure 2.1. If the key(s) necessary to access the
diagnostic program is not functioning, skip to step 11.
10. 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
Upper PCA
Heart Rate
PCA
Metrics
PCA
Safety/Stop
Cable
Page 19