Nellcor Oximax NPB-40, Service Manual

Page: 46 / 114

Troubleshooting
38
5 X Replace SpO
2
board. SpO
2
front end reported illegal value
sent in FSP message.
6 X Replace SpO
2
board. SpO
2
front end reports calibration
(offset) failure.
9 X Replace SpO
2
board. SpO
2
front end reported syntax error
in FSP message.
10 X Replace SpO
2
board. Check
extension cable, SRC Max.
Over-current limit in SpO
2
front end
has tripped.
11 1 2 1 — Replace batteries.
2 — Replace SpO
2
board.
SpO
2
front end reports incorrect
system voltage.
12 X Replace SpO
2
board. SpO
2
front end reports other hardware
problem.
14 X Replace SpO
2
board. SpO
2
front end reports communication
channel overflow.
16 X Replace SpO
2
board. SpO
2
front end reports watchdog time
out.
17 X Check/replace sensor/
extension cable. SpO
2
front end reports that sensor
appears defective.
18 X Replace SpO
2
board. SpO
2
front end reports internal
register appears modified from
expected value.
19 X Check/replace sensor/
extension cable. SpO
2
front end reports signal out-of-
range.
48 X Replace SpO
2
board. SpO
2
front end reports spurious
interrupt.
49 X Replace SpO
2
board. SpO
2
front end reports internal buffer
overflow.
50 X Replace SpO
2
board. SpO
2
front end reports intermittent
error.
51 X Replace SpO
2
board. SpO
2
front end reports digital
communication error.
53 X Replace SpO
2
board. SpO
2
front end data not received.
256 X Replace SpO
2
board. SpO
2
back end reports beginning of
packet missing.
257 X Replace SpO
2
board. SpO
2
back end reports packet start ID
(SID) missing.
258 X Replace SpO
2
board. SpO
2
back end reports packet length
error.
259 X Replace SpO
2
board. SpO
2
back end reports message length
error.
260 X Replace SpO
2
board. SpO
2
back end reports packet contains
unsupported key.
261 X Replace SpO
2
board. SpO
2
back end reports packet CRC
error.
Table 4: Error Codes (Continued)
Error
Code
Scope of Action
Action Explanation
Clin
ici
an
Repair Return