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7. Description of Operating instruction
7.1. Variable power cooking control
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 signal level 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 on HIGH power, the fan motor rotates for 1 minute after
cooking to cool the oven and electrical components.
Duty cycles for microwave cooking
Output
High
1000W
Defrost
440W
Medium
600W
Low
440W
Simmer
440W
Warm
440W
7.2. Grill Cooking
The digital programmer circuit controls the grill power by operating the power relay RY4 in the
sequence shown in the table below
Duty cycles for Grill Cooking
Duty ON/OFF
ON Time
Grill 1
33"
7.3. Auto weight defrost, Auto weight Cook
When an auto control feature is selected and the start pad pressed:
1. The digital programmer circuit determines the power level and the
cooking time and indicates the operating state in the display. The
table shows the corresponding cooking times for each category
and its respective weight.
2. When the cooking time in the display window has elapsed, the
oven turns off automatically via the control signal from the digital
programmer circuit.
Note: After auto cooking if the oven temperature is over the
predetermined temperature the fan motor rotates to cool the oven
and its components.
Duty ON/OFF
ON time
OFF time
22"
0"
16"
6"
22"
0"
22"
0"
15"
7"
8"
14"
OFF Time
0"
30
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Table of Contents
Troubleshooting
