Troubleshooting Guide
56 Chapter 5 - Troubleshooting
Buttons/Wheels (All Monitors)
The following lists recommended actions to address problems with the wheel
and front-panel buttons.
508xxxx trend error
509xxxx flash memory data error
50axxxx SpO
2
error
50bxxxx ECG error
50cxxxx power-down task error
50dxxxx on-board diagnostic error
50exxxx power monitor error
50fxxxx temperature measurement error
510xxxx internal user interface error
511xxxx error handling error
513xxxx serial driver error
514xxxx system software errors (A1 only)
Code (hex) Explanation
Condition Recommended Action
1. The monitor fails to power-up when
the ON/STANDBY button is pressed.
1. Take steps as noted in “Power” on
page 48.
2. The monitor powers-up, but some/
one of the other buttons does not
respond.
1. Ensure that the keypad is plugged
into the Main PCB. If the connection
is good, change the keypad.
2. If the problem persists, change the
Main PCB.
3. When the wheel is rotated, no
highlight appears on the display
screen, and/or the monitor does not
respond to wheel presses.
1. Ensure that the encoder cable is
plugged into the Main PCB. If the
connection is good, change the
encoder.
2. If the problem persists, replace the
Main PCB.
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