CYBEX 525T Service Manual page 71

Cybex 525T Treadmill Part Number
Error 9: MCC Watchdog triggered
Cause:
A software task has failed, causing a delay in the routine running of the code. If the delay is long enough,
a hardware timer in the processor will re-boot the processor. When the processor comes up, it will
communicate what caused the reset (watchdog vs. normal power reset.) Watchdog resets are logged
as Error 9. Power resets are not logged.
Service:
Possible causes of this watchdog error include ESD (Static Electricity) or hardware failures in the display
and/or handset board.
• Check the CHR grips for conductivity and ensure they aren't shorted to the frame or pinched.
• Verify the membranes and decals are not fatigued, cracked or show signs of moisture intrusion.
• Ensure the GFX ground lead is secured correctly, and all screws holding the MCC are tight.
• Check the rear MCC grounding tab for a tight fit.
If the error occurs often, replace the MCC. If associated with membrane faults 6 or 16, a good assumption
is ESD affected the membrane or thumb controls and they need replacing.
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