Tally T2040, Maintenance Manual

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5 Instructions for disassembly and assembly . . . . . . . . . 5-1
5.1 Replacing the casing parts . . . . . . . . . . . . . . . . . . . . . . 5-2
5.1.1 Replacing the upper part of casing . . . . . . . . . . . . . . . . . . . 5-2
5.1.2 Replacing the lower part of casing . . . . . . . . . . . . . . . . . . . 5-6
5.2 Replacing the print head . . . . . . . . . . . . . . . . . . . . . . . 5-8
5.3 Replacing the flap . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
5.4 Replacing the electronic components . . . . . . . . . . . . . . . 5-11
5.4.1 Replacing the main controller board (incl. casing) . . . . . . . . . . 5-11
5.4.2 Replacing the power supply . . . . . . . . . . . . . . . . . . . . . 5-12
5.4.3 Replacing the panel board . . . . . . . . . . . . . . . . . . . . . . 5-14
5.5 Replacing the FAW motor . . . . . . . . . . . . . . . . . . . . . 5-15
5.6 Replacing the paper transport motor . . . . . . . . . . . . . . . 5-16
5.7 Replacing incremental strip . . . . . . . . . . . . . . . . . . . . 5-17
5.8 Replacing the AGA sensor . . . . . . . . . . . . . . . . . . . . 5-18
5.9 Replacing timing station sensor . . . . . . . . . . . . . . . . . . 5-19
5.10 Replacing the home position sensor . . . . . . . . . . . . . . . 5-20
5.11 Replacing the printhead cable . . . . . . . . . . . . . . . . . . . 5-21
5.12 Replacing the ribbon drive . . . . . . . . . . . . . . . . . . . . . 5-22
5.13 Replacing the carriage . . . . . . . . . . . . . . . . . . . . . . . 5-23
5.14 Replacing the carriage motor . . . . . . . . . . . . . . . . . . . 5-25
5.15 Replacing the printing bar . . . . . . . . . . . . . . . . . . . . . 5-26
5.16 Replacing the PE sensor . . . . . . . . . . . . . . . . . . . . . . 5-27
5.17 Replacing the Friction Drive . . . . . . . . . . . . . . . . . . . . 5-28
5.17.1 Replacing the friction drive shaft front . . . . . . . . . . . . . . . . 5-28
5.17.2 Replacing the lower friction . . . . . . . . . . . . . . . . . . . . . . 5-29
5.18 Replacing the tractor . . . . . . . . . . . . . . . . . . . . . . . . 5-30
5.19 Replacing the switch paper guide . . . . . . . . . . . . . . . . . 5-32
5.20 Replacing the paper transport . . . . . . . . . . . . . . . . . . . 5-33
5.20.1 Replacing the paper guide . . . . . . . . . . . . . . . . . . . . . . 5-33
5.20.2 Replacing driving shaft . . . . . . . . . . . . . . . . . . . . . . . 5-34
5.21 Replacing the side walls . . . . . . . . . . . . . . . . . . . . . . 5-35
5.21.1 Replacing the left side wall (with FAW) . . . . . . . . . . . . . . . 5-35
5.21.2 Replacing the right side wall . . . . . . . . . . . . . . . . . . . . . 5-36
Table of contents