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Sharp R-9380 Service Manual page 20

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PIN NO.
j 42
1 SIGNAL
/ PO3
I
I/O
/ IN
Terminal
to chanqe
functions
accordinq
to the model.
By using the A/D converter
contained
in the LSI. DC voltage
in accordance
with the model in operation
is applied
to set up its function.
(Rd93JAZU)
PIN
NO.
/ 43
1 SIGNAL
1 PI0
I/O
j IN
_-__
~~~_
~~~~~.I~~-~~~-----~~
_.._
~_
Siqnal
cominq
from
touch
key.
When either one of D-l 1 line keys on key matrix is touched,
a corresponding
signal out of P70-P73,P63
and P62
will be input into PIO.
When no key is touched,
the signal is held at "L" level.
(RD93CAl
U)
PIN NO.
1 44
1 SIGNAL
/ PI1
I/O
/ IN
Siqnal
cominq
from
touch
key.
When either one of D-l 0 line keys on key matrix is touched,
a corresponding
signal will be input
into PI lI;UgsCAZ,,j
PIN NO.
j 45
1 SIGNAL
/ PI2
I/O
-
i IN
Siqnal
cominq
from
touch
kev.
When either one of D-9 line keys on key matrix is touched,
a corresponding
signal will be input
into PI 2.
(RD53CAZU)
PIN NO.
1 46
1 SIGNAL
1 PI3
~~ m~mL.--!/o..-.-.i IN ____. ~~~~~~
~_.. .._
Siqnal
cominq
from
touch
,kev.
When either one of D-8 line. keys on key matrix is touched,
a corresponding
signal will be input
into PI 3.
(RD93CAZU)
PIN NO.
/ 47
Connected
to GN D.
/
SIGNAL
j AGND
l/O
! IN
_~- i -.~-~-~ .~. _.--~.-
.--. .-~ ---..
I
(RD93KAl
U)
PIN NO.
/ 48-53
Diqit
selection
siqnal.
1 SIGNAL
; PA9-PA4
I .-- -- L -~~~
l/O
I OUT
Refer to the touch control
panel circuit
about the relation
between
signals
and digits.
Normally,
one pulse is output
in every synchronized
signal period, and input to the grid of the fluorescenti$~;$qj
PIN NO.
j 54
1 SIGNAL
/ PA3
L-.-.
----
l/O
OUT
I. -..- --. . ..-1 -.
~~ _.
~~
Oven
lamp, turntable
motor
and coolinq
fan motor
drivinq
signal.
(Square
Waveform:
50Hz)
To turn on and off the control
relay.
The pulse signal (50Hz)
is delivered
to the control
relay driving
circuit
and cook relay control
circuit.
cRDY32El
U)
PIN NO.
/55
SIGNAL
; PA2
Magnetron
Hinh-voltane
circuit
drivinn
sinnal.
To turn on and off the cook relay.
I/O
OUT
In HGH operation,
the signals
holds "H" level during
microwave
cooking
and "L" level while
not cooking.
In other
cooking
modes (MED.
HIGH,
MED.,
MED. LOW, LOW) the signal
turns to "H"
level and "L"
level in repetition
according
to the power level.
1,RD933Al
ii)
19

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