Read Sharp R-67STM (serv.man5) Service Manual online
R67STM
5 – 2
3. GRILL (Figure O-3(c))
In this condition the food is cooked by the top and bottom heating ele-
ments energy. Enter the grilling time by pressing the TIME keys. And
then press the GRILL key three times and start the oven by pressing
START key.
ments energy. Enter the grilling time by pressing the TIME keys. And
then press the GRILL key three times and start the oven by pressing
START key.
The following operations occur:
1. The numbers on the display start the count down to zero.
2. The oven lamp, cooling fan motor and turntable motor are ener-
gized.
3. The relays RY2 and RY5 are energized and the main supply volt-
age is applied to the top and bottom heating elements.
4. Now, the food is cooked by the top and bottom heating elements.
[4] DUAL COOKING CONDITION
1. DUAL 1 (Figure O-4(a))
In this condition the food is cooked by the microwave energy and top
heating element energy. Enter the desired cooking time by rpressing
the TIME keys. And then press the DUAL GRILL key once and start
the oven by pressing START key.
heating element energy. Enter the desired cooking time by rpressing
the TIME keys. And then press the DUAL GRILL key once and start
the oven by pressing START key.
The following operations occur:
1. The numbers on the display start the count down to zero.
2. The oven lamp, cooling fan motor and turntable motor are ener-
gized.
3. The relay RY2 is energized and the main supply voltage is applied
to the top heating element.
4. The relay RY3 is energized and the microwave energy is generated
by magnetron.
5. Now, the food is cooked by the magnetron and the top heating ele-
ment.
2. DUAL 2 (Figure O-4(b))
In this condition the food is cooked by the microwave energy and bot-
tom heating element energy. Enter the desired cooking time by press-
ing the TIME keys. And then press the DUAL GRILL key twice and
start the oven by pressing START key.
tom heating element energy. Enter the desired cooking time by press-
ing the TIME keys. And then press the DUAL GRILL key twice and
start the oven by pressing START key.
The following operations occur:
1. The numbers on the display start the count down to zero.
2. The oven lamp, cooling fan motor and turntable motor are ener-
gized.
3. The relay RY5 is energized and the main supply voltage is applied
to the bottom heating element.
4. The relay RY3 is energized and the microwave energy is generated
by magnetron.
5. Now, the food is cooked by the magnetron and the bottom heating
element.
[5] FAN MOTOR OPERATION (in Grill and
Dual cooking)
Dual cooking)
Upon completion of the selected cooking time, the fan motor FM con-
tinues to operate for 2 minutes (in case that the oven has been oper-
ated for more than 3 minutes in Grill or Dual Grill cooking condition).
tinues to operate for 2 minutes (in case that the oven has been oper-
ated for more than 3 minutes in Grill or Dual Grill cooking condition).
[6] ON/OFF TIME RATIO
In grill cooking or dual cooking, the top heater, bottom heater or mag-
netron operate within a 54 second time base.
netron operate within a 54 second time base.
[7] POWER CONTROL OPERATION
The magnetron, top or bottom heating elements or the fan motor will operate in accordance with following specification.
OPERATION MODE
DEVICE
POWER CONTROL
MICROWAVE SINGLE OPERATION
Microwave
100% 20min, then 70%
TOP GRILL SINGLE OPERATION
Top heating element
100 – 70% 10min, then 50%
BOTTOM GRILL SINGLE OPERATION
Bottom heating element
100 – 70% 10min, then 50%
TOP AND BOTTOM OPERATION
Top heating element
100% 5min then 70% and 70% 5min then 50%
Bottom heating element
100 – 70% 5min, then 50%
TOP GRILL and MICROWAVE OPERATION
Microwave
70% 10min, then 50%
Top heating element
100 – 70% 10min, then 50%
BOTTOM GRILL and MICROWAVE OPERATION
Microwave
70% 10min, then 50%
Bottom heating element
100 – 70% 10min, then 50%
Display
