24
37 P21 OUT Damper motor relay driving signal.
To turn on and off shut-off relay (RY8).
38 P20 OUT Touch control transformer driving signal.
To turn on and off the shut off relay (RY5). If the oven has not been used for more
than 2 minutes, the relay RY5 will be turned off. The relay RY5 will be turned on
when the oven door is opened and closed.
39 P17 OUT Tact switch strobe signal.
Signal applied to tact switch section. A pulse signal is input to P70 - P73 terminal
while one of J-6 line tact switches on matrix is touched.
40 P16 OUT Tact switch strobe signal.
Signal applied to tact switch section. A pulse signal is input to P70 - P73 terminal
while one of J-5 line tact switches on matrix is touched.
41 P15 OUT Tact switch strobe signal.
Signal applied to tact switch section. A pulse signal is input to P70 - P73 terminal
while one of J-2 line tact switches on matrix is touched.
42 P14 OUT Tact switch strobe signal.
Signal applied to tact switch section. A pulse signal is input to P70 - P73 terminal
while one of J-1 line tact switches on matrix is touched.
43-46 P13-P10 OUT Terminal not used.
47-52 P07-P02 OUT Terminal not used.
53-54 P01-P00 OUT Data output terminal to LCD driver IC3.
55-62 P37-P30 OUT Data output terminal to LCD driver IC3.
63-66 P87-P84 OUT Data output terminal to LCD driver IC3.
67-70 P83-P80 IN Input terminal to change the specification of model.
71 VCC IN Connected to GND.
72 VREF IN Connected to GND.
73 AVSS IN Connected to VC.
74-76 AN7-AN5 IN Heating constant compensation terminal.
77 AN4 IN Signal coming from potentiometer.
By inputting DC voltage corresponding to the cooking mode set by the potentiometer,
this input is converted into cooking mode by the A/D converter built into the LSI.
78 AN3 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.
79 AN2 IN Input signal which communicates the door open/close information to LSI.
Door closed; "H" level signal.
Door opened; "L" level signal.
80 AN1 IN Terminal not used.
Pin No. Signal I/O Description
DESCRIPTION OF LSI
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