Sharp R-21HT - Commercial Microwave Oven, Service Manual

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Troubleshooting EE1 and EE2
2. Remove primary wires from
H.V. transformer and measure
for 120v AC.
If 120 volts or AC line input
voltage is measured at the
primary, would indicate that
the problem would be strictly
a H.V. or magnetron issue.
The control circuits would be
operating normally with AC
voltage present.