Question about Sewing Machines
You need to check the fuses first with a continuity tester then the 12v DC out at the edge of the PCB, if you can read 12vdc then you have a component failure if not then the rectifier has popped.
(The AC transformer supplies an AC output of say 16v and it is then rectified and smoothed before going to the pcb)
If you have had the same backup battery in for more than 3 years it may have popped that circuit
Posted on Jan 22, 2010
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Posted on Jan 02, 2017
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Most probably it has blown a fuse in the transformer. The transformer is under the machine that is secured by four screws. Take this out and release the transformer out, it will still be hooked to the connecting wires, so you need to carefully disconnect them. Once you open the transformer you will see a small fuse, you need to replace the fuse.
Please get back to us if you have any further query.
Have a nice day.
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