Nellcor Oximax NPB-40, Service Manual

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Troubleshooting
40
520 X Replace UI board. Unrecoverable error verify real time
clock.
521 X Replace batteries. Battery power is critically low.
522 X Replace batteries. System power levels unacceptable for
continued operation.
523 1, 2 3 1 — Restart the NPB-40.
2 — Set the time and date.
3 — Replace UI board. NVRAM failed consistency check.
524 X Replace UI board. NVRAM failed read-after-write
verification.
525 X X Restart, replace UI board. Time base discrepancy writing error
entry.
526 1, 2 1 — Replace SpO
2
board.
2 — Replace UI board.
Fatal error for SpO
2
communication.
527 1, 2 1 — Replace SpO
2
board.
2 — Replace UI board.
Communication failure with SpO
2
board.
528 1 2 1 — Replace UI board
2 — Return NPB-40 for
repair.
Fatal error creating parser.
529 1 2 1 — Replace UI board
2 — Return NPB-40 for
repair.
Fatal error creating parser.
530 1, 2 1 — Replace SpO
2
board.
2 — Replace UI board.
Unrecoverable error with SpO
2
communication.
531 1, 2 1 — Replace SpO
2
board.
2 — Replace UI board.
Unrecoverable error with SpO
2
communication.
532 1, 2 1 — Replace SpO
2
board.
2 — Replace UI board.
Unrecoverable error with SpO
2
communication.
533 1, 2 1 — Replace SpO
2
board.
2 — Replace UI board.
Unrecoverable error with SpO
2
communication.
534 1, 2 1 — Replace SpO
2
board.
2 — Replace UI board.
Unrecoverable error with SpO
2
communication.
535 1, 2 1 — Replace SpO
2
board.
2 — Replace UI board.
Unrecoverable error with SpO
2
communication.
536 X Replace UI board. Flash memory failed CRC check.
537 X Replace UI board. Fatal system error.
538 X Set the NPB-40 time and date. Real time clock value bad.
539 1 2 1 — Restart the NPB-40.
2 — Replace membrane
switch pad.
Erroneous key press detected at start.
540 X Replace UI board. Fatal system error reading memory.
541 X Return NPB-40 for repair. Fatal software error.
542 1 2 1 — Replace UI board.
2 — Return NPB-40 for
repair.
RAM corruption detected during
background check.
Table 4: Error Codes (Continued)
Error
Code
Scope of Action
Action Explanation
Clin
ici
an
Repair Return