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R-90GCH
Pin No.
Signal
7
AN15
8-10
AN14-AN12
11
AN11
12
AN10
13
AN9
14
AN8
15
P83
16
P82
17
CNVSS
18
RESET
19
P81
20
P80
21
VSS
22
XIN
23
XOUT
24
VCC
25
P77
26
P76
I/O
IN
Primary input voltage watching terminal.
The LSI is watching the primary input voltage through this terminal.
IN
Input terminal to change the specification according to the model.
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
Input signal which communicates the door open/close information to LSI.
Door closed; "H" level signal(0V).
Door opened; "L" level signal(-5V).
IN
Input signal which communicates the damper open/close information to LSI.
Damper closed; "H" level signal(0V:GND).
Damper opened; "L" level signal(-5V).
IN
Relay operation watching terminal.
The LSI is watching so that the three (3) relays for the top heating element, the side
heating element and the power transformer do not operate at the same time.
OUT
Timing signal output terminal for temperature measurement(OVEN THER-
MISTOR).
"L" level (-5V) : Thermistor OPEN timing.
"H" level (GND): Temperature measuring timing.(Convection cooking,Speed grill
OUT
Oven lamp and turntable motor driving signal. (Square Waveform : 50Hz)
To turn on and off the shut-off relay(RY1).
The square waveform voltage is delivered
to the relay(RY1) driving circuit.
IN
Power source voltage: -5V.
VC voltage of power source circuit input.
IN
Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is applied. Temporarily
set to "L" level the moment power is applied, at this time the LSI is reset. Thereafter
set at "H" level.
OUT
Top heating element driving signal.
To operate the solid-state relay for driving the top heating element.
OUT
Side heating element driving signal.
To operate the solid-state relay for driving the top heating element.
IN
Power source voltage: -5V.
VS voltage of power source circuit input.
IN
Internal clock oscillation frequency setting input.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit
with respect to XOUT terminal.
OUT
Internal clock oscillation frequency control output.
Output to control oscillation input of XIN.
IN
Power source voltage: 0V.
VC voltage of power source circuit input. Connected to GND.
OUT
Signal to sound buzzer.
A: Tact switch touch sound.
B: Completion sound.
C: When the oven stops so that the food
can be checked in Automatic cooking
mode.
OUT
Magnetron high-voltage circuit driving signal.
To turn on and off the cook relay(RY2). In
P-HI operation, the signals holds "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 accord-
ing to the power level.
Description
cooking, Speed roast cooking, Speed bake cooking or preheat)
24
20 msec.
During cooking
0.1 sec
A
2.0 sec
B
1.0 sec
1.0 sec
C
Microwave cooking with
Microwave cooking mode
other cooking mode
VARI MODE
ON TIME OFF TIME ON TIME OFF TIME
approx. 70% power
24 sec.
8 sec.
36sec.
approx. 50% power
18 sec.
14 sec.
26sec.
approx. 30% power
12 sec.
20 sec.
16sec.
approx. 10% power
6 sec.
26 sec.
8sec.
H
L
H: GND
L
12sec.
22sec.
32sec.
40sec.
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