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Schematic Machine blows fuse and capacitor. Need motherboard schematic to repair.

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3 Answers

Display does not light up on PFAFF 1475 CD

Could be an electronic issue. Take it to your local Pfaff dealer for an estimate on repairing it. The parts may or may not be available.

Feb 01, 2015 | PfaFF Sewing Machines

1 Answer

My fuse has blown twice and the hand wheel is tight. How and where do I oil the hand wheel? We are missionaries in Mexico and cannot take it to a repair shop. We have replaced the fuse ourselves. It i

The fuse is blowing because the wheel is tight. This causes an increase of load on the motor which in turn blows the fuse.
I would look at the upper and lower shafts for thread wraps or dirt, properly lubricate the bushings, turn machine by hand and try to find tight spots. no sense putting in a new fuse until the problem is fixed

Oct 21, 2014 | Janome Memory Craft 5700

1 Answer

9960 quantum stylist

I'm guessing that you may have had a power surge that caused an overload, OR the machine went in to some sort of protective mode. With the newer machines, if you bend a needle, for example, the machine will lock up until you can fix that problem.
I'm also guessing that your repair person doesn't really know your machine very well. Usually there are indications that the motherboard is going. I've blown them and it has never happened all at once. You might want to get a second opinion from someone well known in the repair business. Good luck!!!

Apr 10, 2014 | Singer Sewing Machines

2 Answers

My Pfaff 7570 will not run. Thought it was the foot pedal. Tried a new one which also didn't work. Changed the AA batteries.Display lights,but will not sew. Husband thinks it is some kind of...

Could be motor brushes or a bad base plate board circuit board. That is a great machine but may be hard to find someone to fix this problem. Take to only to a pfaff repair shop. Motor brushes should be around $50-100 repair and base plate could be up to $500. I would also check it with a nother foot control just to be safe.
If your husband wants to do the job here are some tips.
The motor is right behind the display board, you will need to remove the diplay and motor to get to the brushes.
For the base plate board, Remove the 4 large flatblade screws to get the base plate off.
Right next to the trasnformer there 3 small fuses, (they are back and say fuse on them) if one is very carroded and white there is a good chance that is bad and replacing it will fix the probem.
Lots of work for bolth if the repairs and I recomend you take your machine in.

Apr 03, 2011 | PfaFF Creative 7570

1 Answer

Need fuses for janome 4000

You can get the fuse at Radio Shack. Part number 270-1065. It is a 3.15 amp 250 volt slow-blow fuse.
If you replace the fuse and it blows again, you need a new A circuit board part number 829606005.

Nov 03, 2010 | Janome Memory Craft 4000 Sewing Machine

1 Answer

My Janome 9000 also quit a few months ago, took it to repair shop and they replaced a fuse. Have only used it about 2hrs since and it did the same thing again. So we decided to replace fuse...

Your fuse is blowing because there is a bind in the machine. Did they service the machine when they replaced the fuse? If yes, it should be under warranty. Best guess is that it is tight from lack of lubrication, usually at the bushing nearest the hand wheel.

May 13, 2009 | Janome Memory Craft 9000 Computerized...

1 Answer

I have a 60 year old Husqvarna Automatic 21.. The capacitator on it blew up.. The machine was brilliant .. Did everything any modern machine can do.. I think it was one of the first electric ones ...

if the capacitor is still legible, it is a simple task to unsolder the old capacitor, read the label and source and solder in a new capacitor. Capacitors do blow once in a while...

An electronics repair shop should not charge more than $10 or $15 to replace it if you are not up to the task of soldering...

Apr 19, 2009 | Husqvarna Sewing Machines

1 Answer

Used/new motherboard for MC 9000

This can be ordered from a Janome dealer only and he will have to order it from The Janome Company. They are not cheap so get the price first. It will be better if you can get him to install it for $70-80 dollars more because there may be some adjustments which need to be made when he finishes. It should also be cleaned and lubricated.That being said, I have a few questions for you.
When you plug the machine in and turn it on, does it light up at all? If the answer is no, then you need to check the lead cord.If the lead cord is okay,Then you need to check the fuse wich is located in a black box inside the bottom of the machine. Be sure you diagram the way the wires are before you disconnect them. Disassemble the black box and you will find 2 fuses in it. Usually only one is bad and it will be a 3.0 slow burn fuse. You will probably not find this at Radio Shack but you can find a 3.15 slow burn which works very well.. Be sure to reassemble everything the way it came apart. While you have the bottom of the machine off, blow it out wih air and lubricate every part that moves and rubs with a good quality sewing machine oil (not 3 in 1)

Oct 10, 2008 | Janome Memory Craft 9000 Computerized...

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