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PART I
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Contents
PART I H1252A / TT-3608A-220
H1252B / TT-3608A
1 General information ...................................................................................................................2
2 Installation .......................................................................................................................................3
2.1 Mounting possibilities .........................................................................................................3
PART II H1252B / TT-3608A
1 General information ................................................................................................................. 6
1.1 Introduction ............................................................................................................................6
1.2 Principle of operation ..........................................................................................................6
1.3 Technical data .........................................................................................................................6
2 Maintenance/modication ....................................................................................................7
2.1 Disassembling to remove the mains transformer ..................................................7
2.2 Disassembling and mounting of the ON-OFF switch ...........................................8
2.3 Mounting the DC power supply and reassembling ..............................................8
2.3.1 Mounting of the DC power supply ............................................................................... 9
2.3.2 Modicationoftheprintermaincontrolboard .....................................................9
2.3.3 Reassembling of the printer ..........................................................................................10
2.4 Electrical connections ...................................................................................................... 11
3 Service ..............................................................................................................................................12
3.1 Printer selftest ......................................................................................................................12
3.2 Module check of the DC power supply ................................................................... 12
3.3 Check after repair ...............................................................................................................12
4 Mechanical disassembling of printer .........................................................................13
5 Circuit description ...................................................................................................................14
5.1 DC power supply ......................................................................................................................14