20 Most Recent Janome MC 4400 Computerized Sewing Machine - Page 8 Questions & Answers

https://www.youtube.com/watch?v=aQgVgeksE9w Your Needle Plate Screw Is Loose The little screw that holds your needle plate in place can come loose and cause a knocking noise as your machine vibrates while sewing. ... Check to make sure the screw is tight. This is a more common problem if you must remove your needle plate to get to your bobbin case. https://sewingsociety.com/why-is-my-sewing-machine-making-a-knocking-noise/

My Google search found a facebook video with s7701, but you might try to send a message to the vendor to request assistance. I also saw one for sale with a Japanese language manual which you would need to find a way to translate if you could obtain a copy from the vendor. https://store.beforward.jp/detail/Home-Electronics/Sewing-Machines/PA34724135/http://binan-city.philippineslisted.com/garden-house/portable-sewing-machine-janome-s7701_5405659.htmlhttps://www.facebook.com/permalink.php?story_fbid=551791868614146&id=327334377726564&comment_id=556705818122751&reply_comment_id=556738268119506&comment_tracking=%7B%22tn%22%3A%22R%22%7D

https://www.mybluprint.com/article/janome-sewing-machine-troubleshooting

Manual for sale online: https://manualsoncd.com/product/janome-808-sewing-machine-instruction-manual/ Possibly similar model manual for sale: http://mysewingmall.com/janome-808a-creative-sewing-machine.html

https://www.youtube.com/watch?v=Mz7-k4G9HFg https://www.youtube.com/watch?v=ybQ55fC_UaA https://www.youtube.com/watch?v=s8qAWiFJZXs

https://www.youtube.com/watch?v=LmEtmnkDIS8&list=WL&index=6&t=0s

The TD init error indicates an initialization problem with the automatic thread tension motor. Either a wire connection between this motor and the control board is loose or damaged or the motor has failed. This is from the Janome Service document: http://www.janomeservicevideos.com/wordpress/wp-content/uploads/2015/02/Error-Codes.pdf . Since the MC6500 is a computer with a sewing machine, you may not want to repair this yourself. A sewing machine service technician is a better choice to look at the machine, if you do not have training with electrical repairs. I don't know if a Janome repair technician will have the thread tension motor for this sewing machine. However, none of the other sites for sewing machine parts that I checked have this part in stock. I wish that I had better news for you. Cindy Wells

https://toews.com/wp-content/uploads/sewing-manuals/Janome%20MC4900QC%20Instruction%20Book.pdf

Could be top thread tension is two low. Be sure stitch is centered between fabric layers. Increase tension if top thread is showing on wrong side.

https://www.ifixmachines.com/index.php/category/856-new-home-560-the-super-deluxe-sewing-machine

Be sure stitch is in between the two fabrics when straight stitch. Adjust tension until stitch is between top and bottom fabric. Use different color top thread to make it easier to see. Once tension is correct sewing straight, switch to zigzag.

Remove hook race and bobbin. Clean area with vacuum.
Replace needle.
Try different thread and fabric.

Try reading the USB memory stick on a PC to verify it functions.

Try formatting a new or different known good memory stick using your sewing machine.

Comment here for further assistance.

Here is the manual that shows you how to do it. https://www.janome.com/siteassets/support/manuals/retired/computer/inst-book-mc4000.pdf Page 61 Regards Geoff

https://www.sewingpartsonline.com/contact-us.aspx

unthread it and totally it rethread from the right through all tension discs

https://www.sewingpartsonline.com/instruction-manual-janome-harmony-1017.aspx

Replace the needle then rethread in order: upper looper, lower looper, right needle, left needle

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I`m confused whether you mean top bobbin or lower bobbin...You can go back to the point where it broke...Brother machines are far more simple when this happens...

What r u trying to sew? Type fabric?. Is the needle old? Is the bobbin old, chipped, dirty, set in backwards?