C776i Stairclimber
Page 23
Procedure 6.2 - Troubleshooting the Keyboard and Upper
PCA
If the function keys on the electronic console are unresponsive, the problem may be either the
upper PCA or keyboard. This troubleshooting procedure gives you the information you need to
determine which of these components is malfunctioning.l.
1. Attach the wrist strap to your arm, then connect the ground lead of the wrist strap to the
climber frame.
2. If an ERROR 05 or STUCK KEY message is being displayed continue with step 3.
Otherwise, skip to step 7.
3. Remove the four screws that fasten the display front panel to display housing.
4. Disconnect the keyboard cable from the upper printed circuit assembly. See Diagram 6.3.
Diagram 6.3 - Keyboard and Upper Printed Circuit Assembly
5. Use the C776i, if the ERROR 05 or STUCK KEY message is still being displayed, replace
the upper printed circuit assembly per Procedure XX.
6. If the ERROR 05 or STUCK KEY in no longer displayed replace the display front panel
(keyboard) per Procedure XX.
Upper Printed
Circuit Assembly
Keyboard
Cable
Display Front
Panel
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