Error Codes - Nellcor OxiMax N-65 Service Manual

Troubleshooting
Condition
• The Backlight button on the front panel
keypad is defective.
• Replacing the SpO
problem.
• Replacing the SpO2 PCB does not fix the
problem.
• The Backlight LEDs on the User
Interface PCB have failed.
The monitor shuts off when you press the Backlight button.
• The batteries are, at or near, a voltage too
low for the monitor to operate.
The printer does not print.
• The IrDA between the printer and the
monitor is not properly aligned.
• The printer is turned off.
• The printer batteries are at, or near, a
voltage too low to operate.
• The Data button on the front panel
keypad is defective.
• Replacing the Front Case does not fix the
problem.
• The printer is defective.

Error Codes

42
Table 4:
Troubleshooting Guide
PCB does not fix the
2
An error code displays when the monitor detects a non-correctable failure. Table 5
provides a list of error codes for the monitor. However, you can turn the Power
off and on once (called "cycling" the power) to try removing the error code if one
of the following occurs:
• monitor sounds a low priority alarm
• measurements stop
• "Er" is shown in the %SpO
• Error code is shown in the right numeric display
If the error code remains, see Error Codes on page 43.
(Continued)
Recommended Action
Caution: Unlock J4 before attempting to
remove the flex circuit cable.
Replace the front case. See Front Case Assembly
Replacement on page 54.
Replace the SpO PCB. See SpO2 PCB or User Interface
2
PCB Replacement on page 50.
Replace the User Interface PCB. See SpO2 PCB or User
Interface PCB Replacement on page 50. If this does not fix
the problem, return the monitor to Nellcor.
Replace the User Interface PCB. See SpO2 PCB or User
Interface PCB Replacement on page 50.
Install new batteries. See the O
Manual.
Align the printer and the monitor. See the O
Operator's Manual for instructions.
Turn the printer on. See the printer documentation.
Install new batteries in the printer. See the printer
documentation.
Caution: Unlock J4 before attempting to
remove the flex circuit cable.
Replace the Front Case. See Front Case Assembly
Replacement on page 54.
Replace the User Interface PCB. See SpO2 PCB or User
Interface PCB Replacement on page 50. If this does not fix
the problem, return the monitor to Nellcor.
See the printer documentation, or replace the printer.
numeric display area
2
M N-65 Operator's
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M N-65
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O M N-65 Service Manual
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