Nellcor OxiMax N-65 Service Manual page 52

Troubleshooting
Scope of Action
Error
Code
539 1
540
541
542
543 X
544
545
546
997
998
999
46
Table 5: Error Codes (Continued)
Action
2 1 — Restart the monitor.
2 — Replace membrane
switch pad.
X Replace UI board.
X Return monitor for repair.
1 2 1 — Replace UI board.
2 — Return monitor for repair.
Set time and date.
X Replace UI board.
X Replace SpO
X Replace UI board.
X Replace UI board.
X Replace UI board.
X Replace UI board.
Explanation
Erroneous key press detected at start.
Fatal system error reading memory.
Fatal software error.
RAM corruption detected during
background check.
Invalid time. Cannot snapshot.
Invalid register value.
board. SpO board in unexpected state.
2 2
IrDA failure.
RAM error.
Spurious Interrupt.
Watchdog protection activated.
O M N-65 Service Manual
XI AX