Sharp R-953(SL)M User Manual

R-953/963M - 20
1 AN0 IN Terminal not used. (For only R-953(SL)M/(W)M)
1 AN0 IN Used for initial balancing of the bridge circuit (absolute humidity sensor). This input
is an analog input terminal from the AH sensor circuit, and connected to the A/D
converter built into the LSI. (For only R-963(SL)M/(W)M)
2 P77 OUT Timing signal output terminal for temperature measurement(OVEN
THERMISTOR).
"H" level (GND) : Thermistor OPEN timing.
"L" level (-5V) : Temperature measuring timing. (Convection cooking)
3 P76 OUT Timing signal output terminal for temperature measurement(OVEN
THERMISTOR).
"H" level (GND) : Thermistor OPEN timing.
"L" level (-5V) : Temperature measuring timing. (Convection cooking)
4-5 P75-P74 OUT Terminal not used.
6 P73 IN Signal coming from touch key.
When any one of G9 line keys on key matrix is touched, a corresponding signal
from P10, P11, P12, P13, P14, P15, P16 and P17 will be input into P73. When no
key is touched, the signal is held at "L" level.
7 P72 IN Signal similar to P73.
When any one of G10 line keys on key matrix is touched, a corresponding signal
will be input into P72.
8 P71 IN Signal similar to P73.
When any one of G11 line keys on key matrix is touched, a corresponding signal
will be input into P71.
9 P70 IN Signal similar to P73.
When any one of G12 line keys on key matrix is touched, a corresponding signal
will be input into P70.
10-11 P57-P56 OUT Terminal not used.
12 P55 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.
13-17 P54-P50 OUT Terminal not used. (For only R-953(SL)M/(W)M)
13-17 P54-P50 OUT Used for initial balancing of the bridge circuit (absolute humidity sensor). (For only
R-963(SL)M/(W)M)
18 P47 OUT Terminal not used.
19 P46 IN Input signal which communicates the damper open/close information to LSI.
Damper opened; "H" level signal (0V:GND).
Damper closed; "L" level signal (-5V:VC).
20 P45 OUT Terminal not used.
21 P44 OUT Magnetron high-voltage circuit driving signal.
To turn on and off the cook relay
(RY2). In 100% operation, the
signals hold "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
according to the power level.
LSI(IXA034DR)
The I/O signal of the LSI(IXA034DR) are detailed in the following table.
Pin No. Signal I/O Description
ON/OFF time ratio in Mi-
cro cooking
(a. 32second time base)
ON/OFF time ratio in Mi-
cro cooking
(a. 48second time base)
MICRO ON OFF
COOK
100% 32 sec. 0 sec.
70% 24 sec. 8 sec.
50% 18 sec. 14 sec.
30% 12 sec. 20 sec.
10% 6 sec. 26 sec.
MICRO ON OFF
COOK
100% 48 sec. 0 sec.
70% 36 sec. 12 sec.
50% 26 sec. 22 sec.
30% 16 sec. 32 sec.
10% 8 sec. 40 sec.
A
B
C
H: GND
L
0.12 sec
2.4 sec
1.2 sec
1.2 sec
DESCRIPTION OF LSI

Sharp R-953(SL)M Specifications

General

Brand	Sharp
Model	R-953(SL)M
Category	Microwave Oven
Language	English