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Welch Allyn, Inc. Spot Vital Signs Service Manual
Revision A
Table of Contents
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1.1-To Service Personnel:......................................................................................................................5
1.2 Limited Warranty............................................................................................................................6
Service Policy....................................................................................................................................6
Technical Assistance .........................................................................................................................6
1.3 Basic System Description ................................................................................................................8
Introduction.......................................................................................................................................8
1.4 Basic System Operation ...................................................................................................................9
1.5 Specifications ................................................................................................................................13
1.6 Identification Label and Serial Numbering System Defined ...........................................................16
1.7 Firmware Identification .................................................................................................................17
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2.1 Intent of Manual and Product Scope. .............................................................................................18
2.2 Test Equipment Bench Layout:......................................................................................................19
2.3 Required Tools and Fixtures for Service .......................................................................................20
2.4 Required Tools and Fixtures for Service .......................................................................................21
2.5-Replacement Parts :.......................................................................................................................22
2.6-Supplies and Accessories:..............................................................................................................22
2.7 Maintenance and Service Support.....................................................................................................25
Section 3 Problem Diagnosis...................................................................................................................26
3.1 Diagnostic Procedure for Returned Units..........................................................................................26
3.2 Calibration Procedure : Voltage ......................................................................................................29
3.3 Calibration Procedure : Pressure..................................................................................................30
3.4 SELF DIAGNOSTIC FAULT CODES ..........................................................................................31
3.5 COMPLAINT / CAUSE / CORRECTIVE ACTION.....................................................................33
Section 4 Removal/Replacement of Parts.................................................................................................39
4.1 Battery...........................................................................................................................................39
4.2 Temperature Pod and Temperature Connector PCB removal .........................................................40
4.3 Front Housing and Switch Array ...................................................................................................41
4.4 Display PCB.................................................................................................................................42
4.5 Remove Power and Battery Cable ..................................................................................................43
4.6 Main PCB Removal.......................................................................................................................44
4.7 SpO2 PCB Removal (If configured with SpO2) ............................................................................45
4.8 Pump and Valve Removal..............................................................................................................46
Section 5 Test Procedures........................................................................................................................47
Section 5.1 Calibration Tests...............................................................................................................47
Section 5.2 Current Tests ....................................................................................................................48
Section 5.3 Noise Levels......................................................................................................................49
Section 5.4 Button Test .......................................................................................................................50
Section 5.5 Interface Test ....................................................................................................................51
Section 5.6 Print Quality .....................................................................................................................52
Section 5.7 Pneumatic Tests ................................................................................................................53
Section 5.8 SpO2 Tests........................................................................................................................54
Section 5.9 Temperature Tests.............................................................................................................55
Section 5.10 Fail Safe Testing .............................................................................................................56
Section 5.11 Check List For Spot Vital Signs Service Work ..............................................................57
Section 6 Drawings .................................................................................................................................59
Section 7 Repair Test Specifications........................................................................................................60
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