I have a Singer Confidence Quilter 7469q sewing machine. It's been just fine until yesterday, when the timing was suddenly off. I took it apart enough to see that the needle is missing the trough, which means the thread hook isn't picking up the thread. I thought at first it was a tension issue, but that is clearly not the case. DH thinks he can fix it, if I can find a repair manual. He's very capable in most areas, but this is my baby and he's making me nervous. Does anyone know how to adjust the timing on this machine? Thanks!