Microwave oven repair - control board failure.

[@jayasrirawan6907]

Boss ..how many voltage out in rely for transformer ..plz give me a idea ..now in microwave out put voltage 206..207 ac voltage ..but transformer not working ..Y???..thanks for u..

[@jeswinsam8429]

My SHARP R-9H56, DISPLAY ON BUT KEYPAD NOT WORKING WHICH COMPONENT IN THE CONTROL UNIT COULD BE WRONG.

[@muttley5958]

Well done. How did know the operating voltage of the capacitor should be 127 volts ?

[@tecxperiments3189]

No, that model of microwave oven works with 127 volts. But power supply output in the control board is about 160volts on the electrolytic capacitor. This 160 volts feeds the regulator (IC). Thanks for watching my videos

[@muttley5958]

@@tecxperiments3189 Thanks for replying. I think I understand now. 😃