2
Safety Regulations 1
Contents 2
Technical Data 3
Service Panel 4
Tools Needed 5
Electronic:
Electrostatic Discharge (ESD) 6
Block Diagram 7
PCB's, Plugs and cables 8/9
Ribbon cable function 9
General functions of the PCB's 10
RET-Print 10
P-Print 10
L-Print (Universal) 11
S-Print 11
Diagnostic Instructions 12
Warning of dangerous voltages 13
Service Program
Panel Layout 14
Key Functions 15
Starting and exiting the basic program 15
Navigation 15
Service Program Tests (SP) 16
SP 0.0 (sensor test) 16
SP 0.1 (voltage test) 16
Meaning and functions of LED's 17
SP 0.2 (foot control) 18
SP 0.3 (SSU Start Stop Unit) 18
SP 0.4 (presser foot pressure) 19
SP 0.5 (presser foot lifter) 19
SP 0.6 (feed-dog drop) 20
SP 0.7 (winder switch) 20
SP 0.8 (upper thread indicator) 21
SP 0.9 (buttonhole sensor) 22
SP 0.10 (P-Print) 23
SP 1.x (pattern function) 24
SP 1.1 (zig-zag and straight stitch) 24
SP 1.2 (honeycomb stitch) 24
SP 1.3 (darning stitch) 24
SP 1.4 (Buttonhole) 24
SP 1.5 (keyhole buttonhole) 24
SP 2.x (front cover) 25
SP 2.1 (screen) 25
SP 2.2 (S-Print related keys) 25
SP 2.3 (RET-Print related keys) 25
SP 2.4 (signal tone) 26
SP 3.x (stepping motors) 27
SP 3.1 (stepping motor stitch length) 27
SP 3.2 (stepping motor stitch width) 28
SP 3.3 (all stepping motors) 29
SP 3.4 (stepping motors in pinning
position) 30
SP 3.5 (stitch width test) 31
SP 4.x (stitch counter) 32
SP 4.1 (total number of stitches) 32
SP 4.2 (number of stitches in sewing
mode) 32
SP 4.3 (number of stitches in embroidery
mode) 32
SP 4.4 (number of stitches in BSR mode) 32
SP 5.x (hour counter) 32
SP 5.1 (time power on) 32
SP 5.2 (time stand by) 32
SP 5.3 (time working) 32
SP 5.4 (time sewing) 32
SP 5.5 (time embroidery) 32
SP 5.6 (time BSR) 32
SP 6.x Speed 33
SP 6.1 (calibration of maximum speed) 33
SP 6.2 (testing standard speed) 34
SP 6.3 (testing standard speed of SSU) 34
SP 7.x (Information) 35
SP 7.1 (software version) 35
SP 7.2 (configuration) 35
SP 7.3 (serial number) 36
SP 7.4 (production date) 36
SP 8.x (calibration of balance) 37
SP 8.1 (zero feed) 37
SP 8.2 (balance using "9") 38
SP 8.3 (balance using "leaf" pattern) 39
SP 8.4 (buttonhole adjustment) 39
SP 9.x (motors) 40
SP 9.1 (continuous running in
zig-zag stitch) 40
SP 9.2 (continuous running in
honeycomb stitch) 40
SP 9.2 (winder motor) 41
SP 10.x (BSR) 42
SP 10.1 (BSR sensors) 42
SP 10.2 (Function of BSR-foot) 42
SP 10.3 (BSR foot chassis number) 43
SP 10.4 (BSR foot production date) 43
SP 10.5 (BSR software version) 44
SP 10.6 (BSR boot loader version) 44
SP 10.7 (BSR info. On calibration) 45
SP 12.x (Maintenance & Service
information) 46
SP 12.1 (Maintenance counter) 46
SP 12.2 (resetting the maintenance
counter) 46
SP 12.3 (service counter) 46
SP 12.4 (resetting the service counter) 46
Cleaning interval 47
Servicing interval 47
Visual, functional, sewing and mechanical
checks 48
Notes on electrostatic discharge 49
Removing covers 50
Cleaning 51
Replacing: 52
- Thread pre-tensioner 52
- Vertical spool pin 52
- Horizontal spool pin 53
- Carrying handle 53
- Magnifier holder and thread cutter 54
- S-Print, key pad, front cover, RET-Print
and plug cover 54
- P-Print 55
- L-Print 56
- CFL sewing light 57
- Presser foot lifter sensor 57
- Buttonhole sensor 58
- Main motor (only complete) 58
- Stitch width stepping motor 59
- Stitch length stepping motor and
crankshaft 60
- Foot pressure sensor 61
- Bobbin winder motor 61
- Base shaft 62
- Hook race ring 63
- Thread tension unit 64
- Thread take-up lever 65
- Main shaft and synchronizing disc 66
Adjustments: 67
- Tensioning drive belt 67
- Tensioning the base shaft belt 67
- Bobbin winder device 68
- Position of head plate 68
- Presser foot fixation 69
- Presser foot height 69
- Darning foot height 70
- Position of hook driver in the hook race 70
- Needle/Hook distance 71
- Needle position in straight stitch 71
- Position of synchronizing disc 72
- Position of feed-dog in the stitch plate 72
- Feed-dog height 73
- Thread passage play 74
- Thread guide plate 74
- Feed-dog synchronization (timing) 74
- Hook setting loop lift 75
- Position needle/hook point 76
- Needle height 77
- Basic balance settings 78
- Basic knee lifter settings (FHS) 79
- Basic settings of lower thread tension 79
- Basic setting of upper thread tension 80
- Adjusting the upper thread tension
using a weight 80
- Thread tension release lever 81
- Thread regulator spring 81
Sewing-off 82
External cleaning 82
Content
