R990K(W)
9 – 2
13
P55
OUT
Digit selection signal.
The relationship between digit signal and digit are as fol-
lows;
Digit signal Digit
P02..........................2nd.
P03...........................1st.
P01...........................3rd.
P00...........................4th.
P37...........................5th.
P36.......................... 6th.
P35.......................... 7th.
P55.......................... 8th.
Normally, one pulse is out put in every speriod, and input to
the grid of the Fluorescent Display.
14
P54
OUT
Oven lamp and turntable motor driving signal. (Square Waveform : 50Hz)
To turn on and off the shut-off relay(RY1). The square waveform volt-
age is delivered to the relay(RY1) driving circuit.
15
P53
OUT
Convection motor driving signal.
To turn on and off shut-off relay(RY5). "L" level during CONVECTION;
"H" level otherwise.
16
P52
OUT
Cooling fan motor driving signal.
To turn on and off shut-off relay(RY6). "L" level during both micro-
wave and convection cooking; "H" level otherwise.
17
P51
OUT
Magnetron high-voltage circuit driving signal.
To turn on and off the cook relay(RY2). In HIGH opera-
tion, the signals holds "L" level during microwave cook-
ing and "H" level while not cooking. In other cooking
modes (MED HIGH, MED, MED LOW, LOW) the signal
turns to "H" level and "L" level in repetition according to
the power level.
18
P50
OUT
Damper motor relay driving signal.
To turn on and off shut-off relay(RY4).
19
P47
OUT
Heating element driving signal.
To turn on and off shut-off relay(RY3). "L" level during convection cook-
ing; "H" level otherwise. During convection cooking, the signal
becomes "H" level when the temperature of the oven cavity exceeds
the predetermined temperature.
20-21
P46-P45
OUT
Terminal not used.
22
P44
OUT
Timing signal output terminal for temperature measurement(OVEN THERMISTOR).
H level (GND) : Thermistor OPEN timing.
L level (-5V) : Temperature measuring timing.(Convection cooking)
23
P43
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.
24
P42
OUT
Timing signal output terminal for temperature measurement(OVEN).
H level (GND) : Thermistor OPEN timing.
L level (-5V) : Temperature measuring timing.(Convection cooking)
Pin No.
Signal
I/O
Description
P 03
ß(50Hz)
H
L
G ND
V P
P 02
P 01
P 00
P 37
P 36
P 35
P 55
During cooking
L
H
20 ms ec.
ON
OFF
During
cooking
L
GND
H.
(Convection)
ON
OF F
During
cooking
L
G ND
H.
VARI MODE
ON TIME
OFF TIME
HIGH (100% power)
32 sec.
0 sec.
MED HIGH (approx. 70% power)
24 sec.
8 sec.
MED (approx. 50% power)
18 sec.
14 sec.
MED LOW (approx. 30% power)
12 sec.
20 sec.
LOW (approx. 10% power)
6 sec.
26 sec.
ON
OF F
H : G ND
L
ON
OF F
During
cooking
L
G ND
H.
(C onvection)
A
B
C
H: G ND
L
0.12 s ec
2.4 s ec
1.2 s ec
1.2 s ec
Summary of Contents for Carousel R-990K
Page 38: ...R990K W 12 6 MEMO ...
