oven power supply without output voltage

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i not understand where go connected the wires, can you explained better. i have 5 wires that go to main board of the oven. can you tell me where them must connected to the commercial power supply
 

OK here is the short explanation of the 5-pin connector:
Pin 1 and pin 5 = +9,6V
Pin 2 and pin 4 = -9,6V
Then you make that small circuit with the optocoupler from the comment number 19. connect X1-1 and X1-2 to the 230V AC, connect the emitter of the optocouple transistor to the pins 2 and 4 (-9,6V) and connect the collector to the Pin 3 of the 5-pin connector.

That's it.
 

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