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Table of Contents

LIST OF FIGURES

1-1 NPB-40 Handheld Pulse Oximeter ................................................ 1-1

1-2 NPB-40 Front Panel....................................................................... 1-2

2-1 NPB-40 Battery Installation ........................................................... 2-2

3-1 NPB-40 Self-Test Front Panel Display .......................................... 3-1

3-2 Printer Interface Setup................................................................... 3-3

3-3 Typical Average Data Print Out ..................................................... 3-4

3-4 Typical Data Print Out ................................................................... 3-5

4-1 Typical Error Code Display ............................................................ 4-2

5-1 Opening the NPB-40 Case ............................................................ 5-2

5-2 Top Case Removal ........................................................................ 5-2

5-3 Unlocking CPU PCB Connector J3 ............................................... 5-3

5-4 Separating LCD PCB from CPU PCB............................................ 5-3

6-1 NPB-40 Expanded View ................................................................ 6-2

7-1 Repacking the NPB-40 .................................................................. 7-2

S2-1 Oxyhemoglobin Dissociation Curve .............................................. S-2

S3-1 NPB-40 Block Diagram ................................................................. S-4

S3-2 CPU PCB Block Diagram .............................................................. S-6

S3-3 LCD PCB Block Diagram............................................................... S-12

S4-1 CPU PCB Parts Locator Diagram.................................................. FO-1

S4-2 LCD PCB Parts Locator Diagram .................................................. FO-2

S4-3 CPU PCB Schematic Diagram ...................................................... FO-3

S4-4 LCD PCB Schematic Diagram....................................................... FO-4

S4-5 Front Panel Keypad Schematic Diagram ...................................... FO-5

LIST OF TABLES

4-1 Troubleshooting Guide .................................................................. 4-2

4-2 NPB-40 Error Codes ..................................................................... 4-5

Nellcor NPB-40 Service Manual

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