Bernina 5 Series - Table of Contents

BERNINA International AG Seestrasse 161 CH-8266 Steckborn Switzerland Seite 2 von 187
Contents
Chapter 1 - General Information ....................................................................................... 6
1.1. Safety Regulations .............................................................................................................. 6
1.2 Warning: Dangerous voltage levels! ..................................................................................... 7
1.3 ESD-related note: Electrostatic Discharge (ESD) ................................................................. 8
1.4 Tools and gauges ................................................................................................................. 9
1.5 Handling adjustments ......................................................................................................... 12
1.6 Abbreviations/Names Used ................................................................................................ 12
1.7 Cleaning ............................................................................................................................. 13
1.8 Technical specifications of 4 & 5 Series ............................................................................. 14
Chapter 2 – Electronics and Wiring ............................................................................... 17
2.1 BERNINA B 590 (BERNINA Series 4 & 5) Block Diagram .................................................. 17
2.2 PCBA-Power ...................................................................................................................... 18
2.3 PCBA-CPU-Module (ARM9) General Information ............................................................... 19
2.3.1 PCBA-CPU-Module/ARM9 ................................................................................................................ 19
2.4 PCBA-Base General Information ........................................................................................ 20
2.4.1 PCBA-Base with feed-dog drop detection ......................................................................................... 20
2.5 PCBA-Position Hall ............................................................................................................ 21
2.6 PCBA-Threader .................................................................................................................. 21
2.7 PCBA-Cover including display and touch screen ................................................................ 22
2.7.1 PCBA-Front cover ............................................................................................................................ 22
2.7.2 PCBA-Stitching head (PCBA-RET) ................................................................................................... 23
2.8 PCBA-Lower-Thread Observer (LTO) ................................................................................ 24
2.9 ABC sensor support (presser-foot recognition) ................................................................... 24
2.10 PCBA Embroidery module detection ................................................................................ 25
2.11 Handling of Electronic Components .................................................................................. 26
2.11.1 Returning Defective Electronic Components. ................................................................................. 26
2.11.2 Repairs of Electronic Components (PCBA's) .................................................................................. 26
Chapter 3 - Troubleshooting ........................................................................................... 27
3.1 General troubleshooting flow chart ..................................................................................... 27
3.2 Operating Voltage Functional Test ..................................................................................... 28
3.2.1 Use and functions of LEDs ................................................................................................................ 28
3.3 Upper-thread sensor .......................................................................................................... 30
3.4 Lower-thread sensor .......................................................................................................... 31
3.5 Touch screen calibration ...................................................................................................................... 32
3.6 EEPROM missing or misprogrammed ................................................................................ 32
3.7 Machine doesn't start after repair ....................................................................................... 32
3.8 Update failed ...................................................................................................................... 33
3.9 Sewing-off guidelines ......................................................................................................... 35
3.10 Personal notes regarding troubleshooting ........................................................................ 39
Chapter 4 – Removal and Refitting of Components ..................................................... 40
4.1 Covers ................................................................................................................................ 40
4.1.1 Service Cover See ESD-related note ................................................................................................ 40
4.1.2 Front cover ........................................................................................................................................ 41
4.1.3 Rear Cover ........................................................................................................................................ 44
4.1.4 Freearm cover ................................................................................................................................... 45
4.1.5 Base-plate cover ................................................................................................................................ 46
4.2 Electronics, Sensors, Switches, Magnets ........................................................................... 47
4.2.1 PCBA-Power including PCB housing ................................................................................................ 47
4.2.2 PCBA-CPU-Module (ARM9) General Information ............................................................................ 49
4.2.3 PCBA-CPU-Module (ARM9).............................................................................................................. 50
4.2.4 PCBA-Base - with feed-dog drop detection....................................................................................... 51
4.2.4.1 EEPROM (Electrically Erasable Programmable Read-Only Memory) ........................................... 51
4.2.5 PCBA-Position Hall ............................................................................................................................ 52
4.2.6 PCBA-Threader ................................................................................................................................. 53
4.2.7 PCBA-Front cover including display and touchscreen ...................................................................... 54
4.2.8 PCBA-Head ....................................................................................................................................... 55
4.2.9 PCBA-Lower thread sensor ............................................................................................................... 56