Panasonic NN-A872SBBPQ Service Manual page 26

9.2. Inverter power supply (U)
1. Discharge the high voltage capacitors
2. Unplug the H.V. Lead wires from the magnetron
3. Remove the connector CN701 and CN702 from the inverter PCB
4. Remove the two screws holding the inverter base to the chassis
(See figure 3)
5. Remove the one screw holding the inverter earth wire to the oven
chassis.
Figure 1
Removal of the magnetron
Figure 2
Screws to remove the magnetron
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