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NPB-40
Nellcor NPB-40 Service Manual
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Section 5: Disassembly Guide
5-
2
Remove screws
Remove screws
Figure 5-1: Opening the NPB-40 Case
3
.
While holding the case together, turn the NPB-40 over with the front
panel up and the bottom of the unit closest to you.
4
.
Separate the case top from the bottom case on the right side of the unit
and rotate the case top to the left as shown in Figure 5-2.
J3
Figure 5-2: Top Case Removal
21
23
Table of Contents
Table of Contents
3
Section 1: Introduction
5
Manual Overview
5
Equipment Description
5
Section 2: Routine Maintenance
7
Maintenance Overview
7
Battery Maintenance
7
Battery Replacement
7
Battery Disposal
8
Cleaning
8
Section 3: Performance Verification
9
Performance Verification
9
Section 4: Troubleshooting
15
Introduction
15
Who Should Perform Repairs
15
Repair Level Supported
15
How to Use this Section
15
Obtaining Replacement Parts
15
Troubleshooting Guide
16
Section 5: Disassembly Guide
21
Introduction
21
System Disassembly and Reassembly
21
Section 6: Spare Parts
25
Introduction
25
Section 7: Packing for Shipment
27
General Instructions
27
Packing NPB-40 in Original Carton
27
Packing in a Different Carton
27
Section 8: Specifications
29
Performance
29
Electrical
30
Environmental
30
Physical
31
Technical Supplement
33
S1 Introduction
33
S2 Pulse Oximetry Principles of Operation
33
S2.1 Overview
33
S2.2 Functional Versus Fractional Saturation
33
S2.3 Measured Versus Calculated Saturation
34
S3 Circuit Analysis
34
Block Diagram
34
S3.1 Overall Unit Block Diagram Analysis
35
S3.2 CPU PCB Theory of Operation
37
S3.3 LCD PCB Theory of Operation
43
S4 Schematic Diagrams
50
CPU PCB Parts Locator Diagram
50
LCD PCB Parts Locator Diagram
50
CPU PCB Schematic Diagram
50
LCD PCB Schematic Diagram
50
Front Panel Keypad Schematic Diagram
50
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Nellcor NPB-40 Specifications
General
Brand
Nellcor
Model
NPB-40
Category
Medical Equipment
Language
English
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