Nellcor OxiMax N-550, Service Manual

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N-550 43
T r o u b l e s h o o t i n g
Introduction
This section explains how to troubleshoot the N-550 if problems arise. Tables
are supplied that list possible N-550 difficulties, along with probable causes,
and recommended actions to correct the difficulty.
How To Use This Section
Use this section in conjunction with Performance Verification on page 7, and
Spare Parts on page 73. To remove and replace a part you suspect is
defective, follow the instructions in Disassembly Guide on page 55. The
circuit analysis section in the Technical Discussion on page 99 offers
information on how the N-550 functions.
Who Should Perform Repairs
Only qualified service personnel should open the N-550 housing, remove and
replace components, or make adjustments. If your medical facility does not
have qualified service personnel, contact Nellcor’s Technical Services or your
local Nellcor representative.
Troubleshooting Guide
Problems with the N-550 are categorized in Table 5 on page 44. Refer to the
paragraph indicated for further troubleshooting instructions.
Note : Taking the recommended actions discussed in this section will correct
the majority of problems you may encounter. However, problems not
covered here can be resolved by calling Nellcor’s Technical Services
or your local Nellcor representative.