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Chapter 3 – Control Head Service Information
Table of Contents
Section 1 Overview
1.0 Numeric Display Model........................................................................................ 1-1
2.0 Color Display Model............................................................................................. 1-2
Section 2 Troubleshooting Charts
1.0 Numeric Display Model Control Head Troubleshooting Flow Chart .................... 2-1
1.1 On/Off ............................................................................................................ 2-1
2.0 Color Display Model Control Head Troubleshooting Flow Chart ......................... 2-2
2.1 On/Off............................................................................................................. 2-2
2.2 Display............................................................................................................ 2-3
2.3 Backlight......................................................................................................... 2-4
Section 3 Control Head PCBs/Schematics/Parts lists
1.0 Allocation of Schematics and Circuit Boards ....................................................... 3-1
2.0 Numeric Display Control Head – PCB 84012212002-B/Schematics................... 3-3
Numeric Display Control Head – PCB 84012212002-B ......................................... 3-3
Numeric Display Control Head Schematic Diagram............................................... 3-4
3.0 Numeric Display Control Head Parts List (Rev. B) .............................................3-5
4.0 Color Display Control Head – PCB 84012211002-B/Schematics........................ 3-6
Color Display Control Head – PCB 84012211002-B.............................................. 3-6
Color Display Control Head Schematic Diagram ................................................... 3-7
5.0 Color Display Control Head Parts List (Rev. B) .................................................. 3-8
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