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7.1 Variable power cooking control
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The HIGH VOLTAGE INVERTER POWER SUPPLY controls the output power by a signal from
the digital Programmer circuit DPC. The power relay (RY1) turns on to supply power to the inverter
circuit. The level of output power is controlled by the drive signallevel form the inverter circuit.
NOTE1: The ON/OFF time ratio does not correspond with the percentage of microwave power since
approximately 2 seconds are required for heating the magnetron filament./ NOTE: 2 If microwave
cooking is over 8 minutes onHIGH power, the fan motor rotates for 1 minute after cooking to cool
the oven and electrical components.
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Duty cycles for microwave
cooking
Output
Duty ON/OFF
ON time OFF time
High
1000W
22"
Defrost
440W
16"
Medium 600W
22"
Low
440W
22"
Simmer
440W
15"
Warm
440W
8"
0"
6"
0"
0"
7"
14"
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Troubleshooting
