Sharp R-4P58 - Page 21

—— fag. 7 ? ‘
DESCRIPTION OF LSI
LSi(IZA705DR)
:
The
I/O
signal
of
the
LSI(IZA705DR)
are
detailed
in
the
following
table.
|
Pin
No.
|
Signal_|
:
|
coi
|
om
|
Terminal
not
used.
}
vt
|W
|
Bower
ree
vo}
i
rminal,
Standard
voltage
for
LCD.
Cl
VLI
AN7-AN4
Terminal}
han
nstan
king.
1
2
3-6
7
Terminal not used.
AN2
Inpul
Signal
whign
communi
Door
closed;
"H"
Jevel
signal.
Door
opened;
"L"
level
signal.
IN
9-10 | AN1-ANO| IN _ | Terminal not used.
Terminal not used.
13
PSS
OUT
Fan
motor
driving
signal.
See”
+
GND
To
turn
on
and
off
the
fan
motor
relay
RY5.
|
|
"L"
level
during
cooking,
or
for
5
minutes
=
°Y
@aa
>
:
after
grill
cooking
or
dual
cooking.
"H"
level
|
.
otherwise.
(
aher
Sit
coetitg
or
cuel
aooking
)
CNTRO
OUT
ignal
n
zzer,
0,
12'sec
A:
key
touch
sound.
A
B:
Completion
sound.
2.4
sec
C:
When
the
temperature
of
the
oven
cavity reaches the preset temperature :
in the preheating mode, or when the 1.2.sec 1.2 se eens
oreheating hold time (30 minutes) is c il iil ill ill ,
elapsed.
mea
‘ll: ™
Oven
lamp
and
turntable
motor
driving
signal(Square
Waveform
:
50Hz).
Toturn
on
and
off
shut-off
relay
(RY1).
The.
$0
Treas
square
waveform
voitage
is
deliveredto
FW
T]
WON
H
the
relay
(RY1)
driving
circuit
and
relays
(RY2,RY3,RY4)
control
circuit.
Le
Owingenokng
Bottom
heating
element
driving
signal.
Toturn
on
and
offthe
bottom
element
relay
During
(RY4).
"L"
level
during
grill
(BOTTOM
toe
T
HEATER,
TOP
AND
BOTTOM)
cooking
cr
On
Lom
or
dual)
ss.
r
dual
(Dual
2)
cooking;
"H"
level
otherwise.
; me
: Pe
OUT
OUT
P51
OUT
rill
heating
elemen
P
GRILL)driving
signal.
To turn on and off the grill heating element
relay
(RY3).
"L"
level
during
grill
(TOP
During
seg”
Hs
GND
GRILL,
TOP
AND
BOTTOM)
cooking
or
OUT
25 =* oP) Oo
—_—k
~J
dual
(Dual
1)
cooking;
""H"
level
otherwise,
L
18
P50
Magnetron
high-voltage
circuit
driving
signal.
To
turn
on
and
off
the
cook
ON/OFF
time
ratio
in
Mi:
ON/OFF
time
ratio
in
Mi-
relay
(RY2).
In
100%
POWER
=
cro
seoking
cro
cooking
operation,
the
signals
hold
"L"
{a.
32second
time
base)
(a.
48second
time
base}
cooking
and
"H"
level
while
not
[COOK
COOK
F
cooking.
In
other
cooking
100%
|
32sec.
|
Osec.
|
modes
(70%,
50%,
30%,
10%)
Yo
2sec
the
signal
turns
to
"H"
jevel
and
[50%
_|
18sec.
;
"!"Jevelin
repetition
16sec.
|
32sec.
according
to
the
power
level.
10%
|
Gsec.
|
26sec.
19-20
P47-P46
|
IN/OUT
|
Terminal
not
used.
24
P45
Back
light
driving
signal.
44
To
change
the
brightness
of
the
back
light
(Light
emitting
diodes
LD1
-
LDS).
The
22
pad
__|_IN]OUT
square
waveform
voltage
is
delivered
to
the
back
light
driving
circuit.
19
~ a
?
QoQ
to =
149) a '
Loe]
eS
Osec.