Sharp Carousel R-880F Instrukcja serwisowa - Strona 24
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R-880F(S)
Pin No.
Signal
30
P74
31
P73
32
P72
33
P71
34
P70
35
RESET
36
P81
37
P80
38
XIN
39
XOUT
40
VSS
41
P27
I/O
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.
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.
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.
OUT
Oven lamp and turntable motor driving signal(Square Waveform : 50Hz).
To turn on and off shut-off relay (RY6).
The square waveform voltage is
delivered to the relay (RY6) driving
circuit.
IN
Connected to VC.
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.
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.
OUT
Grill heaters (TOP HEATER) driving signal.
To turn on and off the grill heaters relay
(RY3). "L" level during grill (TOP GRILL,
T O P A N D B O T T O M ) c o o k i n g ,
Convection cooking or Mix t o p g r i l l
cooking, "H" level otherwise.
The heater relay turns on and off within
a 48 second time base in accordance
with the special program in LSI.
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.
OUT
Internal clock oscillation frequency control output.
Output to control oscillation input of XOUT.
IN
Power source voltage: -5V.
VC voltage of power source circuit input.
OUT
Bottom heater driving signal.
To turn on and off the bottom relay (RY4).
"L" level during grill (TOP AND BOTTOM)
cooking, Convection cooking or Mix
bottom cooking, "H" level otherwise.
The heater relay turns on and off within
a 48 second time base in accordance
with the special program in LSI.
Description
ON/OFF time ratio in Mi-
cro cooking
(a. 32second time base)
MICRO
ON
COOK
100%
32 sec.
70%
24 sec.
50%
18 sec. 14 sec.
30%
12 sec. 20 sec.
10%
6 sec. 26 sec.
Power output
100 %
Power output
100 %
22
20 msec.
During cooking
ON/OFF time ratio in Mi-
cro cooking
(a. 48second time base)
MICRO
ON
OFF
COOK
0 sec.
100%
48 sec.
8 sec.
70%
36 sec. 12 sec.
50%
26 sec. 22 sec.
30%
16 sec. 32 sec.
10%
8 sec. 40 sec.
ON time
OFF time
48 sec.
0 sec.
90 %
44 sec.
4 sec.
80 %
40 sec.
8 sec.
70 %
36 sec.
12 sec.
60 %
32 sec.
16 sec.
50 %
26 sec.
22 sec.
40 %
22 sec.
26 sec.
30 %
16 sec.
32 sec.
20 %
12 sec.
36 sec.
10 %
8 sec.
40 sec.
ON time
OFF time
48 sec.
0 sec.
90 %
44 sec.
4 sec.
80 %
40 sec.
8 sec.
70 %
36 sec.
12 sec.
60 %
32 sec.
16 sec.
50 %
26 sec.
22 sec.
40 %
22 sec.
26 sec.
30 %
16 sec.
32 sec.
20 %
12 sec.
36 sec.
10 %
8 sec.
40 sec.
H
L
OFF
0 sec.