Error 704

Error Message Displayed to user

• CC_COMMS_LOSS_ERROR = 704
• CC_NOT_CONNECTED_ERROR = 704

Condition

Communications loss with Command Center detected.

Cause

Fitcore A53 co-processor communicates with Command Center (CC) on Treadmill via I2C communication bus which is made up of 3 wires connected to Fitcore on the 40 pin connecter P9. The 3 wires connected are: CC enable, I2C serial data line, and I2C clock line. The A53 "turns on" CC via the CC enable line. CC sends touch events, in response to user's interaction with the screen, to the A53 over I2C bus which is made up of the I2C serial data line and I2C clock line. Depending on which signal breaks, CC will appear to be working until user touches the screen, or CC's LCD screen will be blank. A break in any of these three lines will render CC inoperable.

Comms loss detection at boot up:Break in I2C enable or I2C clock, A53 will detect and flag as an error. The LCD on command center will remain blank.

Comms loss detection during run time: Break in either CC enable line or I2C clock line will be detected and will be flagged as an error. If the break is in the CC enable line, the CC's LCD display will appear to flicker. Break solely in I2C data line can't be detected, CC will be unresponsive to user's screen touches.

The error is no-fatal type as it does not impede unit operation, the error may be displayed on console screen temporarily as a warning or reminder. The error code will not be cleared until subsequent console reboot during start-up. The condition will persist until faulty hardware is repaired or replaced.

Remedy

Check 40 pin cable and connections between Fitcore board and Command Center. Replace damaged cable.