Table of Contents
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T r o u b l e s h o o t i n g
Introduction
How To Use This Section
Who Should Perform Repairs
Troubleshooting Guide
NPB-40
This section explains how to troubleshoot the NPB-40. Tables list possible
NPB-40 difficulties, along with probable causes, and recommended actions to
correct the difficulty.
Use this section in conjunction with Performance Verification on page 15, and
Spare Parts on page 55. To remove and replace a part suspected of being
defective, follow the instructions in Disassembly Guide on page 43. The circuit
analysis section in the Technical Discussion on page 75, offers information on
how the NPB-40 functions.
Only qualified service personnel should open the NPB-40 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.
Note: Follow the recommended actions discussed in this section to 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.
If you encounter a problem that cannot be resolved through a visual inspection,
refer to Table 3 which provides troubleshooting support. It is recommended that
corrective actions be performed in the order presented. For a symptom that is not
listed in Table 3, contact the Nellcor Technical Services Department at
1.800.635.5267 or your local Nellcor representative.
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Table of Contents
Troubleshooting
