This is a Supplement Service Manual for the Bernina Model 1230 Sewing Machine. It contains 37 pages of mostly the electronics for the machine. For information on how to time and adjust the machine you will need the Models 1120 1130 Service Manual. This is a PDF Down-load-able Manual that you can print yourself or take to your local Office Supply Store or Print Shop and let them print and bind it for you. Our PDFs are set for printing. You can view them too! But some manuals will be Horizontal or Vertical with alternating pages depending on the Original Manual. You can turn any page any direction you want for viewing with a click or two. We make our own PDFs, scanning and editing one page at a time. Our PDFs are in color whenever possible. We will email you a link to download the manual after the payment is verified. Please make sure your email address is correct when ordering.