Pete72

Hi, I am having a problem with the zig zag stepper motor on my Janome 7700. The stepper motor has been changed, and the sensors are working properly, but it still does not work. I read somewhere that it was most likely a problem with the main circuit board. I have some experience soldering, so I am comfortable replacing components on the circuit board. I'm just not sure what to check. Any suggestions would be appreciated.
Thanks

patricej

contact a janome dealer.

mkc

Without the schematics you would have no idea what components are on what circuits on the board. Replacing discretes with the wrong type or value can result in unexpected/incorrect function or damage beyond the main board.

You would be well-advised to contact a Janome dealer for diagnosis and repair.

lindaschipper

I've had a circut board go out after i dropped my machine....you MUST have it repared by a Janome dealer/service repair man. One circut going out can lead to major problems with other circuts and then you might as well throw it in the trash and buy a whole new machine. Having it repared won't be cheap, but it will be repared properly.

Pete72

Thanks for the advice, I will keep it in mind. I was hoping I'd get lucky, and it would be an easy repair to complete.