CYBEX Arc Trainer 750A - Page 56

Cybex 750A/750AT Arc Trainer Service Manual
Service
Page 4-30
ERROR 40 - UART TX BUFFER OVER-RUN
Note ERROR 40 present
in log. Restart unit.
Does the error
reoccur after restart?
Check data cable
continuity and
connections.
Yes
Does the data cable
check out properly?
Yes
Replace display board.
Does the error
reoccur after restart?
Replace lower controller
board.
Yes
Replace data cable.
No
Completed.
No
No