Contents
Symbols ................................................................................................... 1
Documentation symbols .................................................................................................................. 1
Power symbols .................................................................................................................................. 1
Connectivity symbols ........................................................................................................................ 2
Miscellaneous symbols ................................................................................................................... 2
Safety ....................................................................................................... 3
Warnings and cautions .................................................................................................................... 3
General safety considerations ........................................................................................................ 4
Electrostatic discharge (ESD) ......................................................................................................... 4
Overview .................................................................................................. 7
Purpose and scope ........................................................................................................................... 7
Technical support services ............................................................................................................. 7
Recommended service intervals .................................................................................................. 11
Configuration options ..................................................................................................................... 11
The Welch Allyn Service Tool ....................................................................................................... 13
Battery performance ...................................................................................................................... 14
Controls, indicators, and connectors ................................................... 17
Service menu ......................................................................................... 21
Access the Service screens ......................................................................................................... 21
General tab ....................................................................................................................................... 21
Self-tests tab .................................................................................................................................... 23
Logs tab ............................................................................................................................................ 24
Device tab ........................................................................................................................................ 24
Licensing tab .................................................................................................................................... 25
Power-up sequence ............................................................................... 27
Troubleshooting .................................................................................... 29
Symptoms and solutions ................................................................................................................ 29
Technical alarm messages ........................................................................................................... 37
Disassembly and repair ........................................................................ 47
Required tools and equipment ...................................................................................................... 48
Power down the monitor ............................................................................................................... 48
Remove the battery ......................................................................................................................... 48
Remove the rear housing ............................................................................................................... 49
Disassemble the rear housing ...................................................................................................... 52
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