Servicemanual_aurora_435_450_english_V3_032530.50.04_Korrektur.doc 4
1.3 Contents
Chapter 1 General information................................................................................ 2
1.1 Safety Regulations............................................................................................ 2
1.2 Warning: Dangerous voltage levels! ................................................................. 3
1.3 Contents............................................................................................................ 4
1.4 Note on Electrostatic Discharge (ESD) ............................................................. 5
1.5 Tools and gauges ............................................................................................. 6
1.6 Where and how to use the service cables # 22................................................. 7
Chapter 2 Description of technical details and electronics.................................. 8
2.1 BERNINA aurora 435 / 450 technical specifications ......................................... 8
2.2 Block diagram ................................................................................................. 10
2.3 PCBs, plugs and cables.................................................................................. 11
2.4 General functions of the PCBs........................................................................ 14
Chapter 3 Functional check and diagnostic instructions ................................... 16
3.1 Functional check ............................................................................................. 16
3.2 Diagnostic instructions .................................................................................... 16
3.3 Cleaning.......................................................................................................... 17
3.4 Sewing-off with 2 layers cottonfabric............................................................... 18
Chapter 4
Replacing Assemblies cross reference to service manuals 430/440/640.......... 19
Chapter 5
Adjustments cross reference to service manuals 430/440/640 .......................... 20
Chapter 6 Serviceprogram..................................................................................... 21
6.1 Functions of keys on panel ............................................................................. 21
6.2 Symbols (letters) display on panel .................................................................. 22
6.3 Starting and exiting the basic program............................................................ 23
6.4 Service Tests (SP - Service Program) ............................................................ 24
SP 0 Sensors test in basic program .................................................................. 24
SP 1 - 12 Program tests .................................................................................... 32
SP 2 Front cover ............................................................................................... 33
SP 3 Stepping motors........................................................................................ 34
SP 4 Stitch counter............................................................................................ 38
SP 5 Hours meter.............................................................................................. 39
SP 6 Speed ....................................................................................................... 40
SP 7 Information................................................................................................ 42
SP 8 Calibration of balance............................................................................... 44
SP 9 Motors....................................................................................................... 47
SP 10 BSR Bernina Stitch Regulator............................................................. 49
SP 12 Information.............................................................................................. 53
Chapter 7 Firmware update ................................................................................... 55
Chapter 8 Lubrication Plan Cross reference to Service Manuals 430/440/640.. 55
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