Cybex 750A/750AT Arc Trainer Service Manual
Service
Page 4-6
Microprocessor Temperature
The internal measured temperature in C of the lower control board (LCB) microprocessor. Temperature in 1
degree C from 0 - 125.
Code Version
The “LCB CODE VX.XX” is displayed to show the LCB’s fi rmware.
Error Codes
Error codes notify user of a problem condition and are displayed on the console. Error codes can also help
to indicate the part of the unit most likely to be causing the problem. Errors are tracked in a rolling log of 20
entries, each stamped with time and date. The log number will show in the INCLINE display as L-01 through
L-20.
Error Code Listing
Error Code # Meaning
4 LCB Ignored Shutdown
5 Drive Communication Lost
8 Approaching Over Temperature
9 Display Watchdog Triggered
22 Power Supply Irregularity - Generator Power No Speed Signal
23 Power Supply Irregularity - Speed Signal, but no Generator Power - Fatal
24 Incline moving too Slowly
25 Incline Movement Feedback Stopped
26 Incline Disabled
27 Low Battery
28 Over Temperature
29 Controller Watchdog Triggered
30 Dead Battery
31 EEPROM Write Failure
32 UART Failure
33 Packet Error
34 Communication Watchdog Triggered
35 LCB Latched On - Can’t Shut Down
36 Library Fault
37 Incline Out of Range
38 Incline Timeout
39 UART RX Buffer Over-Run
40 UART TX Buffer Over-Run
41 Data Transmission Fault- Recieve Packet/Buffer Overfl ow
42 Data Transmission Fault-Recieve Packet/CRC Mismatch
43 Data Transmission Fault- Receive Packet/Size Mismatch
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