Table of Contents
Advertisement
Pin No.
Signal
I/O
24
K00
IN
25
K01
IN
26
K02
IN
27
K03
IN
28
COM0
OUT
29
COM1
OUT
30
COM2
OUT
31
COM3
OUT
32-33 SEG0-SEG1 OUT
34
SEG2
OUT
35
SEG3
OUT
36
SEG4
OUT
37-39 SEG5-SEG7 OUT
40-51
OUT
SEG8-SEG19
52-53
VC1-VC2
IN
54
VC3
OUT
Signal similar to K02.
When either G8 line on key matrix is touched, a corresponding signal will be input into
K00.
Signal similar to K02.
When either G9 line on key matrix is touched, a corresponding signal will be input into
K01.
Signal coming from touch key.
When either G10 line on key matrix is touched, a corresponding signal out of R00, R01,
R02, R03, P20 and P21 will be input into K02. When no key is touched, the signal is held
at "H" level.
Signal synchronized with commercial power source frequency.
This is the basic timing for time processing of
LSI.
Common data signal: COM0.
Connected to LCD (Pin No. COM1)
Common data signal: COM1.
Connected to LCD (Pin No. COM2)
Common data signal: COM2.
Connected to LCD (Pin No. COM3)
Terminal not used.
Terminal not used.
Magnetron high-voltage circuit driving signal.
To turn on and off the cook relay (RY2). The
signals holds "L" level during microwave
cooking and "H" level while not cooking. In
other cooking modes (variable cooking) the
signal turns to "H" level and "L" level in
repetition according to the power level.
Terminal not used.
Oven lamp, fan motor and turntable motor driving signal.
To turn on and off shut off relay (RY1). The
square waveform voltage is delivered to the
RY1 driving circuit and RY2 control circuit.
Terminal not used.
Segment data signal.
Connected to LCD.
The relation between signals are as follows:
LSI signal (Pin No.)
SEG 8 (40) .................... SEG 12
SEG 9 (41) .................... SEG 11
SEG 10 (42) .................... SEG 10
SEG 11 (43) .................... SEG 9
SEG 12 (44) .................... SEG 8
SEG 13 (45) .................... SEG 7
Power source voltage input terminal.
Standard voltage for LCD.
Terminal not used.
Description
Maximum
output
70% of maximum
output
20.0 msec.
LCD segment
LSI signal (Pin No.)
SEG 14 (46) ..................... SEG 6
SEG 15 (47) ..................... SEG 5
SEG 16 (48) ..................... SEG 4
SEG 17 (49) ..................... SEG 3
SEG 18 (50) ..................... SEG 2
SEG 19 (51) ..................... SEG 1
15
R-230F
GND
-5V
20.0 msec.
OFF
H : GND
ON
L : -5V
OFF
OFF
H : GND
24 sec.
8 sec.
ON
L : -5V
H : GND
L : -5V
During cooking
LCD segment
Advertisement
Table of Contents
