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R-55TS-F
LSI
The I/O signal of the LSI is detailed in the following table.
Pin No.
Signal
1-2
VL2-VL1
3-5
AN7-AN5
6
AN4
7
AN3
8
AN2
9
P61
10
P60
11
P57
12
P56
13
P55
14
P54
15
P53
16
P52
17
P51
DESCRIPTION OF LSI
I/O
IN
Power source voltage input terminal.
Standard voltage for LCD.
IN
Terminal to change functions according to the model.
DC voltage in accordance with the model in operation is applied to set up its function.
OUT
Terminal not used.
IN
Terminal not used.
IN
Input signal which communicates the door open/close information to LSI.
Door closed; "H" level signal.
Door opened; "L" level signal.
OUT
Terminal not used.
IN
Temperature measurement input: OVEN THERMISTOR.
By inputting DC voltage corresponding to the temperature detected by the thermistor, this
input is converted into temperature by the A/D converter built into the LSI.
IN
Terminal not used.
OUT
Oven lamp and turntable motor driving signal(Square Waveform : 60Hz).
To turn on and off shut-off relay (RY1). The
square waveform voltage is delivered to the relay
(RY1) driving circuit.
OUT
Terminal not used.
OUT
Signal to sound buzzer.
A: key touch sound.
B: Completion sound.
C: When the temperature of the oven cavity
reaches the preset temperature in the
preheating mode, or when the preheating
hold time (30 minutes) is elapsed.
OUT
Magnetron high-voltage circuit driving signal.
To turn on and off the relay RY2. In 100%
POWER operation, the signals hold "L" level
during microwave cooking and "H" level while not
cooking. In other cooking modes (70%, 50%,
30%, 10%) the signal turns to "H" level and "L"
level in repetition according to the power level.
OUT
Fan motor driving signal.
To turn on and off the fan motor relay RY5. "L"
level during cooking, or after grill cooking or bake
cooking. "H" level otherwise.
OUT
Upper heater driving signal.
To turn on and off the upper heater relay (RY3).
"L" level during GRILL1, GRILL2 cooking or Bake
cooking. "H" level otherwise.
Description
22
16.7 msec.
During cooking
0.1 sec.
A
2.0 sec.
B
1.0 sec.
1.0 sec.
B
ON/OFF time ratio in micro cooking
(a 32 second time base)
MICRO
COOK
ON
OFF
100 %
32 sec.
0 sec.
70 %
24 sec.
8 sec.
50 %
18 sec.
14 sec.
30 %
12 sec.
20 sec.
10 %
6 sec.
26 sec.
OFF
H : GND
ON
L
During cooking, after grill
cooking or bake cooking
OFF
ON
(During Grill1, Grill2 or Bake cooking)
H
L
H : GND
L
H : GND
L
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