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Phaff 1221circuit board dead

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JJW1221

New Member
Hi i need help repairing this phaff 1221 circuit board. fuse has been removed.
the big capacitor tests dead, but i read on an older thread you can read it completely.
Found this hand drawn schematic on an older thread.
My issue is the 3 coiled transformer is blown up. Any ideas why and how to replace it? thanks.
0109221843_HDR.jpg
0109221718_HDR.jpg
Pfaff 1222 motor control.jpeg
 
I will see if i can find something similiar here in the US.
what could cause it to blown up? would some component also be bad upstream?
 
Digikey do quite a lot that may be suitable:

Look for ones with probably somewhere in the region of 1 - 2mH inductance, at a guess.
This one may be OK?

Or this:

etc.
 
Hi i replaced this pulse transformer and immediately at power up,
it blew again without motor or anything else hooked up to board.
Any ideas? Capacitor tests ok.
 
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