Test 3 Automatic Darning Program; Test 4 Display Of Firmware Version - Bernina 330 Service And Maintenance Manual

Mechanical fine-adjustment:
If electronic adjusting won't result in perfect matching of the lines, mechanical fine-adjusting is required:
•
Remove balance button.
•
Loosen screw 1 (T10).
•
Fine-adjust balance via pivot 2 (T10).
•
Retighten screw 1 (T10).
•
Refit balance button.

Test 3 Automatic darning program

•
Select test no. 3.
What to test:
•
Automatic darning (also buttonhole calibration test option).
Target state:
•
Lines of darning pattern must end on parallel, 'virtual' lines at
both ends.
•
If the virtual end lines are not parallel, balance and buttonhole
calibration must be checked.
Press clr to exit test and to return to service program basic position.

Test 4 Display of firmware version

•
Select test no. 4.
What to test:
•
Firmware version number appears in display.
•
For example: Version V 3.0.
Press clr to exit test and to return to service program basic position.
BERNINA International AG · Seestrasse 161 · CH-8266 Steckborn · Switzerland
Clockwise rotation
OK
Counter clockwise
rotation
2
1
OK
53