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R-8740M - 23
LSI(IX091DR)
The I/O signal of the LSI(IX091DR) are detailed in the following table.
The I/O signal of the LSI(IX091DR) are detailed in the following table.
Pin No.
Signal
I/O
Description
1-2
VL2-VL1
IN
Power source voltage input terminal.
Standard voltage for LCD.
Standard voltage for LCD.
3-5
AN7-AN5
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.
DC voltage in accordance with the Model in operation is applied to set up its
function.
6
AN4
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.
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.
7
AN3
IN
Terminal not used.
8
AN2
IN
Input signal which communicates the door open/close information to LSI.
Door closed; "H" level signal.
Door opened; "L" level signal.
Door closed; "H" level signal.
Door opened; "L" level signal.
9-10
P61-P60
OUT
Timing signal output terminal for temperature measurement(OVEN
THERMISTOR)
"H" level (GND) : Thermistor OPEN timing.
"L" level (-5V) : Temperature measuring timing. (Convection cooking)
THERMISTOR)
"H" level (GND) : Thermistor OPEN timing.
"L" level (-5V) : Temperature measuring timing. (Convection cooking)
11
P57
IN
Terminal not used.
12
P56
OUT
Oven lamp and turntable motor driving signal(Square Waveform : 50Hz).
To turn on and off shut-off relay
(RY1). The square waveform voltage
is delivered to the relay (RY1) driving
circuit .
To turn on and off shut-off relay
(RY1). The square waveform voltage
is delivered to the relay (RY1) driving
circuit .
13
P55
OUT
Terminal not used.
14
P54
OUT
Signal to sound buzzer.
A: key touch sound.
B: Completion sound.
C: When the temperature of the oven
A: key touch sound.
B: Completion sound.
C: When the temperature of the oven
cavity reaches the preset temperature
in the preheating mode.
in the preheating mode.
D: When "SOUND ON" is set with the
SOUND key. When the MEMORY key
is continued to push for more than 5
seconds and the memory setting
condition is set.
is continued to push for more than 5
seconds and the memory setting
condition is set.
15
P53
OUT
Terminal not used.
16
P52
OUT
Fan motor driving signal.
To turn on and off the fan motor relay
RY5. "L" level during cooking, or for 90
seconds after manual cooking or 65
seconds after memory cooking (in case
where the same memory cooking is
operated for more than 10 minutes), or
until the oven cavity has been cooled
after convection or dual cooking.
To turn on and off the fan motor relay
RY5. "L" level during cooking, or for 90
seconds after manual cooking or 65
seconds after memory cooking (in case
where the same memory cooking is
operated for more than 10 minutes), or
until the oven cavity has been cooled
after convection or dual cooking.
17
P51
OUT
Bottom heater driving signal.
To turn on and off the bottom relay
(RY4). "L" level during grill (BOTTOM
HEATER, TOP AND BOTTOM) cooking
or dual (MICRO + BOTTOM) cooking or
convection cooking. "H" level otherwise.
To turn on and off the bottom relay
(RY4). "L" level during grill (BOTTOM
HEATER, TOP AND BOTTOM) cooking
or dual (MICRO + BOTTOM) cooking or
convection cooking. "H" level otherwise.
18
P50
OUT
Convection motor driving signal.
To turn on and off shut-off relay (RY7).
"L" level during CONVECTION; "H" level
otherwise.
To turn on and off shut-off relay (RY7).
"L" level during CONVECTION; "H" level
otherwise.
DESCRIPTION OF LSI
20 msec
During cooking
H
L
A
B
C
H: GND
L
0.12 sec
2.4 sec
1.2 sec
1.2 sec
D
0.08 sec
0.08 sec
0.08 sec
ON
OFF
During cooking, or for 90 sec.
after manual cooking or 65 sec.
after memory cooking, or until
the oven cavity has been cooled
after convection or dual cooking.
after manual cooking or 65 sec.
after memory cooking, or until
the oven cavity has been cooled
after convection or dual cooking.
H : GND
L : -5V
ON
OFF
During
cooking
L
GND
H.
(Convection)
ON
OFF
During
cooking
L
GND
H.
(Grill, dual or convection)
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