Read Sharp R-82STM (serv.man2) Service Manual online
82STM -10
Pin No.
Signal
I/O
Description
ON
OFF
During
cooking
L
GND
H.
(Grill or dual)
(Convection or dual)
ON
OFF
During
cooking
L
GND
H.
ON
OFF
During
cooking
L
GND
H.
(Grill or dual)
ON
OFF
During cooking, or for 5 minutes or more
after grill cooking, convection cooking or
dual cooking
after grill cooking, convection cooking or
dual cooking
L
GND
H.
27
P77
OUT
Grill heating element (TOP GRILL) driving signal.
To turn on and off the grill heating
element relay (RY3). "L" level during
grill (TOP GRILL, TOP AND BOTTOM)
cooking, dual (MICRO + TOP) cooking
or convection cooking, "H" level
otherwise.
To turn on and off the grill heating
element relay (RY3). "L" level during
grill (TOP GRILL, TOP AND BOTTOM)
cooking, dual (MICRO + TOP) cooking
or convection cooking, "H" level
otherwise.
28
P76
OUT
Bottom heating element driving signal.
To turn on and off the bottom element
relay (RY4). "L" level during grill
(BOTTOM HEATER, TOP AND
BOTTOM) cooking, dual (MICRO +
BOTTOM) cooking or convection
cooking, "H" level otherwise.
To turn on and off the bottom element
relay (RY4). "L" level during grill
(BOTTOM HEATER, TOP AND
BOTTOM) cooking, dual (MICRO +
BOTTOM) cooking or convection
cooking, "H" level otherwise.
29
P75
OUT
Magnetron high-voltage circuit driving signal.
To turn on and off the cook
relay (RY2). In 100%
POWER 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.
relay (RY2). In 100%
POWER 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.
30-31
P74-P73
Terminal not used.
32
P72
OUT
Fan motor driving signal.
To turn on and off the fan motor
relay RY5. "L" level during
cooking, or for 5 minutes after grill
cooking or dual cooking. "H" level
otherwise.
To turn on and off the fan motor
relay RY5. "L" level during
cooking, or for 5 minutes after grill
cooking or dual cooking. "H" level
otherwise.
33
P71
IN
Convection motor driving signal.
To turn on and off shut-off relay
(RY6). "L" level during
CONVECTION; "H" level otherwise.
To turn on and off shut-off relay
(RY6). "L" level during
CONVECTION; "H" level otherwise.
34
P70
IN
Connected to VC.
35
RESET
IN
Auto clear terminal.
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. Thereafter set at "H" level.
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. Thereafter set at "H" level.
36
XCIN
IN
Terminal not used.
37
XCOUT
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.
The internal clock frequency is set by inserting the ceramic filter oscillation
circuit with respect to XIN terminal.
39
XOUT
OUT
Internal clock oscillation frequency control output.
Output to control oscillation input of XOUT.
Output to control oscillation input of XOUT.
40
VSS
IN
Power source voltage: -5V.
VC voltage of power source circuit input.
VC voltage of power source circuit input.
41-44
P27-P24
IN/OUT
Terminal not used.
ON/OFF time ratio in Micro
cooking
(a. 32second time base)
cooking
(a. 32second time base)
ON/OFF time ratio in Micro
cooking
(a. 48second time base)
cooking
(a. 48second time base)
MICRO
ON
OFF
COOK
100%
100%
32sec.
0sec.
70%
24sec.
8sec.
50%
18sec.
14sec.
30%
12sec.
20sec.
10%
6sec.
26sec.
MICRO
ON
OFF
COOK
100%
100%
48sec.
0sec.
70%
36sec.
12sec.
50%
26sec.
22sec.
30%
16sec.
32sec.
10%
8sec.
40sec.
TOUCH CONTROL / DESCRIPTION OF LSI
LSI(IZA930DR)
The I/O signal of the LSI(IZA930DR) are detailed in the following table.
The I/O signal of the LSI(IZA930DR) are detailed in the following table.
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