A SERVICE OF

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Contents
Maintenance and Service Guide v
5.20 RTC Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–46
5.21 LED Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–48
5.22 Button Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–50
5.23 System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–52
6 Specifications
A Connector Pin Assignments
B Power Cord Requirements
3-Conductor Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . B–1
General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . B–1
Country-Specific Requirements. . . . . . . . . . . . . . . . . . . . B–2
C Screw Listing
Index