Guide :Microwave Ovens : JVM1490 Convection/Microwave Oven

High voltage surge

Microwave is installed in travel trailer. connected to 240 volts by stupid mistake. now microwave does not work. checked fuse,it is fine , 120 volts to transformer, and from transformer have 8.9 volts to circuit board behind touch pad. i believe the pcb board is most likely my problem,,but looking for other idea's before ording one.

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