22
R-7A55(W)/(B)
R-7E45(W)/(B)
ON
OFF
During
cooking
L
GND
H
ON
OFF
L
GND
H
ß
H
L
GND
VP
(50Hz)
D6
D7
D8
D9
D10
D11
ß(50Hz)
GND
VP
Pin No.
Signal
I/O
Description
20
AN0
IN
Temperature measurement input: OVEN THERMISTOR.
By inputting DC voltage corresponding to the temperature detected by the
themistor, this input is converted into temperature by the A/D converter built into
the LSI.
21-27
AN1-AN7
OUT
Terminal not used.
28
AN8
IN
Input signal which communicates the door open/close information to LSI..
Door closed; "H" level signal.
Door opened; "L" level signal.
29-31
AN9-AN11
IN
Connected to VC.
32/33
AVCC/VCC IN/IN
Connected to GND.
34
INT0
IN
Signal synchronized with commercial source freqency(50Hz).
This is basic timing for time processing of LSI.
35-36
D1-D2
OUT
Terminal not used.
37
BUZZ
OUT
Signal to sound buzzer.
A: key touch sound(0.12sec.).
B: Completion sound(2.4sec.).
38
D4
OUT
Cooling fan motor driving signal.
To turn on and off shut-off relay (RY6). "H" level
during both microwave, Grill and convection
cooking; "L" level otherwise.
39
D5
OUT
Damper motor relay driving signal.
To turn on and off shut-off relay (RY7).
40-45
D6-D11
OUT
Digit selection signal.
The relationship between digit signal and digit are as follows:
Digit signal
Digit
D6 .................. 1st.
D7 ................. 2nd.
D8 .................. 3rd.
D9 .................. 4th.
D10 ................ 5th.
D11 ................ 6th.
Refer to the touch control panel circuit about the
relation between signals and digits. Normally,
one pulse is output in every synchronized signal
(ß) period, and input to the grid of the fluorescent
display.
46-47
D12-D13
OUT
Segment data signals.
The relation between signals and indicators are as follows:
Signal
Segment
Signal
Segment
D12 ............ UB
R91 ................ f
D13 ............ LB
R92 ............... g
R80 ............... a
R93 ................ c
R81 ............... h
R10 ............... e
R82 ................ j
R11 ............... p
R83 ............... k
R12 ............... n
R90 ............... b
R13 ............... d
Refer to the touch control panel circuit for the relationship between signals and
indicators. Normally, one pulse is output in every synchronized signal (ß) period,
and input to the anode of the fluorescent display.
