Overview
Purpose and scope
This service manual is a reference for periodic preventive maintenance and corrective service
procedures for the Welch Allyn Spot Vital Signs 4400 device. It is intended for use only by trained
and qualified service personnel.
Corrective service is supported to the level of field-replaceable units. These include circuit-board
assemblies and some subassemblies, case parts, and other parts.
WARNING
When performing a service procedure, follow the instructions exactly
as presented in this manual. Failure to do so could damage the device, invalidate
the product warranty, and lead to serious personal injury.
CAUTION
No component-level repair of circuit boards and subassemblies is
supported. Use only the repair procedures described in this manual.
Find instructions for functional testing and performance verification in the Welch Allyn Service Tool
help files.
This manual applies only to this device. For servicing of any other vital signs device, see the service
manual for the specific device.
Service work not described in this manual must be performed by qualified service personnel at the
factory or at an authorized Welch Allyn service center.
Related documents
When using this manual, refer to the following:
•
Welch Allyn Spot Vital Signs 4400 Instructions for use
(on the user documentation CD)
•
Welch Allyn Service Tool:
http://www.welchallyn.com/en/service-support/service-center/service-tool.html
•
Welch Allyn Service Tool Installation and configuration guide
:
http://www.welchallyn.com/en/service-support/service-center/service-tool.html
•
Welch Allyn 9600 Plus Calibration Tester Directions for use
•
Hillrom website:
13
Summary of Contents for Spot Vital Signs 4400
Page 1: ...Welch Allyn Spot Vital Signs 4400 Service manual Software version 1 X...
Page 8: ...4 Symbols and definitions...
Page 34: ...30 Power up sequence...
Page 68: ...64 Field replaceable units...
Page 127: ...Interconnect diagram Service manual Appendix 123...
Page 128: ...124 Appendix...
Page 132: ......
