Sharp R-771(W)N - Page 23

|
7
~
:
Description
terminal
while
one
of
J-2
line
tact
switches
on
matrix
is
touched.
Tact switch strobe signal.
Signal
applied
to
tact
switch
section.
A
pulse
signal
is
input
to
P44
-
P47
terminal
while
one
of
J-1
line
tact
switches
on
mairix
is
touched.
Terminal not used.
Oven
lamp
and
turntable
motor
drivine
sianal(Square
Waveform:
50Hz).
OUT
To
turn
on
and
off
shut-off
relay
fa $a ——$§$r
(RY1).
The
square
waveform
voltage
1
i
a
ee
ie
H
is
delivered
to
the
relay
(RY1)
driving
circuit
.
ne
| During cooking
Connected to VC,
Auto clear terminal.
Signal
is
inputto
reset
the
LSI
tothe
initial
state
when
power
is
applied.
Temporarily
setio
"L"
level
the
moment
power
is
applied,
at
this
time
the
LSlis
reset.
Thereafter
set at "H" level.
Magnetron
high-voltage
circuit
driving
signal.
To
turn
on
and
off
the
cook
j
Leen
;
Aes
relay
(RY2).
in
100%
POWER
Sabena
ratio
in
Mi-
Sia
Bc
ratio
in
Mi-
f :
,
9...
;
operation,
the
signals
hold
"L"
(a.
32second
time
base)
(a.
48second
time
base)
level
during
microwave
MIGRO
MICRO]
ON
OFF
:
ON
OFF
cooking
and
"H"
level
while
not
ae
aa
100%
|Sasec.
|
Osec.]
[100%
|
48sec.
|
_Osec.
|
cooking.
in
other
cooking
tea
della
,
20%.
10%),
[row
[atsen,
|
Ssen.|
|
70%
ae
>
"H"
level
and
[éo9%,
|
tasec.
|
14sec.|
[50%
_
|
26sec.
|
Level
ii
fepeunee
[30%
_
|
12sec.
|
20sec.|
[30%
10%
|
6sec.
|
26sec.|
[70%
|
&sec.
|
according
to
the
power
level.
Grill
heaters
(TOP
HEATER)
driving
signal.
To
turn
on
and
off
the
grill
heaters
relay
vee
(RY3).
"L"
level
during
grill
(TOP
GRILL,
Durios
OFF
TOP
AND
BOTTOM)
cooking,
or
dual
.
a
el
eee
(MICRO+TOP)
cooking.
“H*
level
otherwise.
Internal
clock
oscillation
frequency
input
setting.
The
internal
clock
frequency
is
set
by
inserting
the
ceramic
filter
oscillation
circuit
IN
with
respect
to
XIN
terminal.
OUT
Internal
clock
oscillation
frequency
contro!
output.
Output
to
control
oscillation
input
of
XOUT.
|
Power
source
voltaqe:
-5V.
VC
voltage
of
power
source
circuit
input.
Bottom
heater
driving
signal.
To
turn
on
and
off
the
bottom
relay
(RY4).
H.
GND
"L"
level
during
grill
(BOTTOM
HEATER,
Sar
TOP
AND
BOTTOM)
cooking,
or
dual!
onl
euros
arene
L
Mix(MICRO+BOTTOM)}
cooking.
"H"
level
otherwise.
N
OUT
Terminal not used.
Fan
motor
driving
signal.
Oo
To
turn
on
and
off
the
fan
motor
relay
RY5.
cal
|
aa
:
"L"
fevel
during
cooking,
or
for
5
minutes
|
after
grill
cooking
or
dual
cooking.
"H"
level
|
During
cooking,
or
for
5
minutes
or
otherwise.
Cae
after
grill
or
dual
cooking
)
Signal
coming
from
encoder.
Signal
similar
to
INT1.
Pulse
signals
are
input
into
P41.
Seament data signal
Connected
to
LCD.
No
connection
in
LCD
Segment
data
signal.
|
Connected
to
LCD.
No
connection
in
LCD.
R-771 - 23
OUT
OUT
N
OU
T
OUT