Service manual
Service Manual iii
Revision Information
Drawings and/or illustrations and/or part numbers in this document are for reference only. For the most
current revision call the Welch Allyn Customer Service phone number (see page ii).
Date Revision Description Originator Approval
3/31/01 A Introduction of Service Manual JDB JDB
12/17/01 B Correction made to Section 1 regarding temperature accuracy,
Section 2 regarding part numbers, Section 3 regarding error
codes, and updates to the drawings
JDB JDB
9/12/02 C Added New PCB layout and schematic for Spot Extensions.
Added tool SRC-MAX to tool list in Section 2.3. Removed old PCB
and Old SpO
2
PCB and replaced with new Main PCB and New
SpO
2
PCB in section 2.4. Changed section 4.7 to cover both Spot
and Spot Extensions SpO
2
PCB removal and replacement.
Changed section 5.8 to cover both Spot and Spot Extension SpO
2
testing. General Spelling and grammar clean up.
JDB JDB
02/02/03 D Arden document release to SKF. Updated USA Service Center
contact information.
JDB DLK
05/01/03 E Correction to tools required for service. Corrected General
Information phone numbers.
DLK DLK
09/16/03 F Updates repair BOM. Updated Accessories. Re-formated manual
to meet Welch Allyn service manual work instructions.
DLK DLK
12/12/03 G Correction to page numbering and to voltage calibrations. Re-
formatted all systems of measurement to meet NIST Standards.
Reformatted Appendix E. Corrected grammar and punctuation.
Revised service and support details in Section 1. Removed
schematics.
DLK RJS
3/9/06 H Removed references to Nellcor motion tolerance. AMJ JPK
3/21/07 J SAP new version glitch AMJ FL
3/21/07 K Update section on Setting the Date and Time. Include testing and
disassembly/assembly for the Masimo SpO
2
feature and
updated repair parts lists.
AMJ FL
2010/11/05 L Changed part number for SPOT Repair Tool SW CD from 130S57E
to 716948 on pages 39 and 52 . Updated copyright page with
latest service phone numbers and combined Title pages and
Front cover pages.
KMR NEA
2012/04/26 A New Material Number taken out 718448. CE mark removal KMR GB










