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R -8580
PIN NO. 1 29
1 SIGNAL
j SI E25
I
I/O
/ OUT
Used for initial balancing of the bridge circuit(absolute himidity sensor).
(RD936Al U)
PIN NO. / 30
1 SIGNAL /
E26
I
I/O
/ OUT
Signal to sound buzzer.
A: Key touch sound.(O.l sec.)
B: Completion sound.(2.0 sec.)
C: When the temperature of the oven cavity reaches the preset temperature in the preheating mode, or when the
preheating hold time (15 minutes) is elapsed.
(I .O sec. ON-l .O sec. OFF repeat)
(RD93LA2U)
PIN NO. 1 31
SIGNAL j IRQ E27
I
l/O
/ IN
Signal svnchronized with commercial source frequencv(50Hz).
This is the basic timing for time processing of LSI.
(RD93FEl U)
PIN NO. 32
SIGNAL
vss
I
I/O
IN
Power source voltage: -5V.
VC voltage of power source circuit input.
(RD93GAl U)
PIN NO. j 33 1 SIGNAL / RO
I
I/O
j OUT
Magnetron high-voltaae circuit driving signal.
To turn on and off the cook relay.
In HIGH operation, the signals holds “L” level during microwave cooking and “H” level while not cooking. In other
cooking modes (MED. HIGH, MED., MED. LOW, LOW) the signal turns to “H” level and “1” level in repetition
according to the power level.
(RD933A2U)
PIN NO. 1 34 1 SiGNAL ( RI
I
I/O
j OUT
Oven lamp and turntable motor driving siqnal.(Square Waveform:fiOHz)
To turn on and off the control relay.
The pulse signal(50Hz) is delivered to the control relay driving circuit and cook relay, heater relay control circuit.
(RD932Fl U)
PIN NO. 35
SIGNAL / R2
I
l/O
j OUT
Heating element driving signal.
To turn on and off the heater relay.
“1” level during convection cooking; “H” level otherwise.
During convection cooking or mix cooking, the signal becomes “H” level when the temperature of the oven cavity
exceeds the predetermined temperature.
(RD93464U)
PIN NO. j 36
1 SIGNAL / R3
I
I/O
j OUT
Coolinrr fan motor driving signal.
To turn on and off the cooling fan motor relay,
“1” level during both microwave and convection cooking; “H” level
otherwise.
fRD934B2Ul
PIN NO. 1 37
1 SIGNAL j R4
I
I/O
j OUT
Convection motor driving sianal.
To turn on and off the convection motor.
“1” level during CONVECTION or MIX COOK; “H” level otherwise.
(RD93468U)
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