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電子レンジ Sharp Carousel II R-3A54のPDF サービスマニュアルをオンラインで閲覧またはダウンロードできます。Sharp Carousel II R-3A54 36 ページ。 Microwave oven
Sharp Carousel II R-3A54 にも： 操作マニュアル (27 ページ)
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R-3E54
PIN NO.
j 27
1 SIGNAL
/ AVSS
I I/O
/ IN
Connected
to VC.
PIN NO.
1 28
Auto
clear terminal.
1 SIGNAL
/ RESET
I l/O
IN
Signal is input to reset the LSI to the initial state when power is supplied.
Temporarily
set to "H" level the moment
power is supplied,
at this time the LSI is set.
Thereafter
set at "L" level.
PIN NO.
/ 29
Connected
to GND.
1 SIGNAL
1 TEST
I I/O
/ IN
PIN NO.
1 30
1 SIGNAL
1 OSCI
I I/O
1 IN
Internal
clock oscillation
freauen'cv
input
setting.
The internal
clock frequency
is set by inserting
the ceramic filter oscillation
circuit
with
respect to OSCI terminal.
PIN NO.
/ 31
1 SIGNAL
j OSC2
Internal
clock oscillation
frequencv
control
output.
Output to control
oscillation
input of OSC2.
I I/O
1 OUT
PIN NO.
1 32
1 SIGNAL
) VCC
I
i/O
1 IN
Power
source
voltage
input
terminal.
Connected
to GND.
PIN NO.
I 33
1 SIGNAL
1 DO
1
I/O
1 OUT
Terminal
not used.
PIN NO.
34
1 SIGNAL
/ Dl
I I/O
1 OUT
Magnetron
High-voltane
circuit
drivino
signal.
To turn on and off the cook relay.
in high 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.
(RD933Al
U)
PIN NO.
I 35
1 SIGNAL
1 D2
1
i/O
1 OUT
Terminal
not used.
PIN NO.
1 36
1 SIGNAL
1 D3
1
l/O
1 OUT
Oven
lamp,
turntable
motor
and coolina
fan motor
driving
sional.
(Square
Waveform:
45Hz)
To turn on and off the control
relay.
The pulse signal (45Hz)
is delivered
to the control
relay driving
circuit
and cook relay control
circuit.
PIN NO.
I 37
1 SIGNAL
1 D4
1
I/O
1 OUT
Segment
data signal.
Signal similar to Dll
.
(RD939A2U)
PIN NO.
1 38-42
1 SIGNAL
1 D5-D9
1
I/O
1 OUT
Digit
selection
signal.
Signal similar to DIO.
(RD938A2U)
20