Panasonic NN-A872SBBPQ Service Manual page 38

10.4. Push Button Keyboard
Check the continuity between the switch terminals, by tapping an appropriate pad on the
keyboard. The keypad matrix is shown on .
10.5. Inverter Power Supply
Caution
DO NOT try to repair this inverter power supply). Replace as a
whole H.V. Inverter Unit.
10.6. Inverter Power Supply Unit
Warning
Do not attempt to make any measurements in the high voltage
circuitry of the inverter or magnetron.
Figure 3
Inveter power supply diagram
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