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9320
9450
Pin No.
Signal
Description
I/O
IN
1
vss
Connected
to GND.
2
Dll
IN
Not used. Terminal
for manufacture
test.
Normally,
connected
to GND
by pull-up resistor jR1 1).
DlO
IN
Terminal
not used.
Connected
to GND.
D9
OUT
Oven lamp,
fan motor
and truntable
motor
driving signal (Squre waveform:
50H.z)
To turn on and off the control
relay (RL2):
The
Squre
waveform
voltage
(50
Hz)
is delivered
to the control
relay
control
circuit
and cook relay control
circuit.
20 msec.
Durinq cookinq
08
OUT
Magnetron
high-voltage
circurt driving signai.
To turn on and off the cook relay (RLI
)
In HIGH
operatron,
the signals holds "H"
level during
microwave
eooklng
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
io
the power
level.
HIGH
MED
HIGH
MED
GND
MED
LOW
ON
,
I
GND
LOW
32 sec.
6
07
OUT
Timing
signal
output
terminal
for
temperature
measurement
and
thermistor
open judgement.
(R-9450
only)
"H"
level (GND):
Temperature
measuring
timing.
"L" level (-6.2V):
Termistor
OPEN
judging timing.
40
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