Read Sharp R-85STMA (serv.man5) Service Manual online
R85STMA
5 – 3
3. MICROWAVE AND BOTTOM GRILL (Figure O-5c)
Programme the desired cooking time by touching the TIME keys.
Touch the COMBI key three times. Select the microwave power level
by touching the MICRO POWER key. When the START key is
touched, the following operations occur:
Touch the COMBI key three times. Select the microwave power level
by touching the MICRO POWER key. When the START key is
touched, the following operations occur:
1. The numbers on the digital readout start the count down to zero.
2. The oven lamp, cooling fan motor and turntable motor are ener-
gized.
3. The relay RY4 is energized and the main supply voltage is applied
to the bottom grill heating element.
4. The relay RY2 is energized and the microwave energy is generated
by magnetron.
5. Now, the food is cooked by microwave and bottom grill simulta-
neously.
[6] ON/OFF TIME RATIO
In grill cooking, convection cooking or dual cooking, the top heater,
bottom heater or magnetron operate within a 48 second time base.
The following table is the ON / OFF time ratio at each power output of
the top heaters, bottom heater or magnetron.
bottom heater or magnetron operate within a 48 second time base.
The following table is the ON / OFF time ratio at each power output of
the top heaters, bottom heater or magnetron.
POWER OUTPUT
ON TIME
OFF TIME
100%
48 sec.
0 sec.
70%
36 sec.
12 sec.
50%
26 sec.
22 sec.
30%
16 sec.
32 sec.
10%
8 sec.
40 sec.
