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TOP GRILL MODE
In this mode, the food is cooked by the grill heating
element (top grill). Select the TOP GRILL mode with the
COOKING MODE selector. Enter the cooking time by
rotating the TIME/WEIGHT dial. When the START button
is pressed, the following operations occur:
Figure O-3(a) on page 33
1. The relay RY1 + RY3 + RY5 are energized.
2. The numbers of the digital readout start the count down
to zero.
3. Then the grill heating element (top), turntable motor,
oven lamp and fan motor are energized.
4. Now, the food is grilled by the grill heating element.
5. Upon completion of the selected cooking time, audible
signal sounds and the contacts of relays RY1 + RY3
are opened, then the grill heating element (top), turn-
table motor and oven lamp are de-energized.
6. The relay RY5 stays closed for five (5) minutes, and the
fan motor operates.
BOTTOM GRILL MODE
In this mode, the food is cooked by the bottom heating
element. Select the BOTTOM GRILL mode with the COOK-
ING MODE selector. Enter the cooking time by rotating the
TIME/WEIGHT dial. When the START button is pressed,
the following operations occur:
Figure O-3(b) on page 33
1. The relay RY1 + RY4 + RY5 are energized.
2. The numbers of the digital readout start the count down
to zero.
3. Then the bottom heating element, turntable motor,
oven lamp and fan motor are energized.
4. Now, the food is grilled by the bottom heating element.
5. Upon completion of the selected cooking time, audible
signal sounds and the contacts of relays RY1 + RY4
are opened, then the bottom heating elements, turnta-
ble motor and oven lamp are de-energized.
6. The relay RY5 stays closed for five (5) minutes, and the
fan motor operates.
TOP AND BOTTOM GRILL MODE
In this mode, the food is cooked by both the grill heating
element (top grill) and bottom heating element. Select the
TOP AND BOTTOM GRILL mode with the COOKING
MODE selector. Enter the cooking time by rotating the
TIME/WEIGHT dial. When the START button is pressed,
the following operations occur:
Figure O-3(c) on page 34
1. The relay RY1 + RY3 + RY4 + RY5 are energized.
2. The numbers of the digital readout start the count down
to zero.
3. Then the grill heating element (top), bottom heating
element, turntable motor, oven lamp and fan motor are
energized.
4. Now, the food is grilled by the grill heating element
(top) and the bottom heating element.
5. Upon completion of the selected cooking time, audible
signal sounds and the contacts of relays RY1 + RY3 +
RY4 are opened, then the grill heating element (top),
bottom heating element, turntable motor and oven
lamp are de-energized.
OPERATION SEQUENCE
6. The relay RY5 stays closed for five (5) minutes, and the
DUAL COOKING CONDITION
The oven has two dual cooking mode. One is MICRO-
WAVE AND TOP GRILL mode and other one is MICRO-
WAVE AND BOTTOM GRILL mode. In both modes, the
relay RY2 operates intermittently with in a 48 seconds time
base as shown below.
MICROWAVE AND TOP GRILL MODE (DUAL 1)
In this mode, the food is cooked by microwave and the grill
heating element (top). Select the MICROWAVE AND TOP
GRILL mode with the COOKING MODE selector and then
select the power level with the WATT button. Enter the
cooking time by rotating the TIME/WEIGHT dial. When the
START button is pressed, the following operations occur
(Fig. O-4(a)):
1. The relay RY1 + RY2 + RY3 + RY5 are energized.
2. The numbers of the digital readout start the count down
3. The grill heating element (top), high voltage trans-
4. Now, the food is cooked by the microwave and grill
5. Upon completion of the selected cooking time, audible
6. The relay RY5 stays closed for five (5) minutes, and the
MICROWAVE AND BOTTOM GRILL MODE (DUAL 2)
In this mode, the food is cooked by microwave and the
bottom heating element. Select the MICROWAVE AND
TOP GRILL mode with the COOKING MODE selector and
then select the power level with the WATT button Enter the
cooking time by rotating the TIME/WEIGHT dial. When the
START button is pressed, the following operations occur
(Fig . O-4(b)):
1. The relay RY1 + RY2 + RY4 + RY5 are energized.
2. The numbers of the digital readout start the count down
3. The bottom heating element, high voltage transformer,
4. Now, the food is cooked by the microwave and bottom
5. Upon completion of the selected cooking time, audible
6. The relay RY5 stays closed for five (5) minutes, and the
R-677 - 10
...
CONT
fan motor operates.
Power level
ON time
100%
48 sec.
70%
36 sec.
50%
26 sec.
30%
16 sec.
10%
8 sec.
to zero.
former, turntable motor, oven lamp and fan motor are
energized.
heating element (top).
signal sounds and the contacts of relays RY1 + RY2 +
RY3 are opened, then the grill heating element (top),
high voltage transformer, turntable motor and oven
lamp are de-energized.
fan motor operates.
to zero.
turntable motor, oven lamp and fan motor are ener-
gized.
heating element.
signal sounds and the contacts of relays RY1 + RY2 +
RY4 are opened, then the bottom heating elements,
high voltage transformer, turntable motor and oven
lamp are de-energized.
fan motor operates.
OFF time
0 sec.
12 sec.
22 sec.
32 sec.
40 sec.
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