i have a panasonic microwave oven model NN-S551WF. when i power it on there is no display and microwave have no power. i opened the digital programmer control and found that voltages are not correct. the power circuit is almost like the attached file.
at the 5v point i get 1.14 volt.
at the 18v point i get 3.84 volt.
i removed Q1 and ZD1 and checked with meter and they seems to be ok. the transformer seems to be good too, i get 22v ac when i remove D1.
then why am i getting low voltages at those points? could this be fault with the digital programmer circuit?
at the 5v point i get 1.14 volt.
at the 18v point i get 3.84 volt.
i removed Q1 and ZD1 and checked with meter and they seems to be ok. the transformer seems to be good too, i get 22v ac when i remove D1.
then why am i getting low voltages at those points? could this be fault with the digital programmer circuit?
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