Read Sharp R-362M (serv.man2) Service Manual online
R362M - 12
Pin No.
Signal
I/O
Description
During cooking
L
H
20 msec.
ON
OFF
( During cooking )
L
GND
H.
27
P77
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P44 - P47 terminal
while one of G6 line key on matrix is touched.
while one of G6 line key on matrix is touched.
28
P76
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P44 - P47 terminal
while one of G5 line key on matrix is touched.
while one of G5 line key on matrix is touched.
29
P75
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P44 - P47 terminal
while one of G4 line key on matrix is touched.
while one of G4 line key on matrix is touched.
30
P74
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P44 - P47 terminal
while one of G3 line key on matrix is touched.
while one of G3 line key on matrix is touched.
31
P73
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P44 - P47 terminal
while one of G2 line key on matrix is touched.
while one of G2 line key on matrix is touched.
32
P72
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to P44 - P47 terminal
while one of G1 line key on matrix is touched.
while one of G1 line key on matrix is touched.
33
P71
OUT
Square Waveform : 50Hz.
The square waveform voltage is de-
livered to the relay (RY2) driving cir-
cuit.
livered to the relay (RY2) driving cir-
cuit.
34
P70
IN
Connected to VC.
35
RESET
IN
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. Thereafer set at "H" level.
Temporarily set to "L" level the moment power is applied, at this time
the LSI is reset. Thereafer set at "H" level.
36
P81
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 sig-
nal turns to "H" level and "L" level in
repetition according to the power level.
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 sig-
nal turns to "H" level and "L" level in
repetition according to the power level.
37
P80
OUT
Terminal not used.
38
XIN
IN
Internal clock oscillation frequency input setting.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit
with respect to XIN terminal.
with respect to XIN terminal.
39
XOUT
OUT
Internal clock oscillation frequency control output.
Output to control oscillation input of XOUT.
40
VSS
IN
Power source voltage: -5V.
VC voltage of power source circuit input.
41-42
P27-P26
OUT
Terminal not used.
43
P25
OUT
Oven lamp, turntable motor, fan motor driving signal.
To turn on and off the relay RY5. "L"
level during cooking. "H" level other-
wise.
level during cooking. "H" level other-
wise.
44-48
P24-P20
OUT
Terminal not used.
49-50
P17-P16
OUT
Terminal not used.
ON/OFF time ratio in Micro
cooking
(a. 32second time base)
cooking
(a. 32second 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.
DESCRIPTION OF LSI
LSI(IZA961DR)
The I/O signal of the LSI(IZA961DR) are detailed in the following table.
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