danmar

Hi everybody! My sewing machine quit. A friend had given me his mothers Coronado Automatic Zigzag sewing machine after she had passed away. I had never tried it but now that my machine has quit, I tried it out. I didn't get a manual with it and it is on a zigzag stitch. I have turned every knob and can't get it to sew straight. :cry: I just can't figure it out.
Does anyone have or know about these old sewing machines.
Here is a picture of it. If you know anything that might help, I'd love to hear from you. I did a search on the internet and can't find anything. It was made in Japan.