Sharp R-8320E

Pin No. Signal
I/O
Description
1
D8
IN
Connected to GND (0 volt).
2
D9
IN
To change over power source frequency.
60 Hz area: “H” level (OV: GND)
50 Hz area: “L” level (-15V: VDD)
Note: Normally connected to “H” level (GND) by jumper wire.
3
DlO
IN To change over temperature indicate mode (“FPC)
OF unit: “H” level (OV: GND)
‘C unit: “L” level (-15V: VDD)
Note: Normally connected to “L” level (VDD) by printed pattern.
L
4
T’4
OUT
Terminal not used. Connected to GND.
5
VREF
IN Reference voltage input terminal
A reference voltage applied to the A/D converter in the LSI (IX2107YA) to
convert the oven temperature detected by the thermistor at A/D.
The reference voltage is generally maintained at -6.4 to -6.8V.
6
f(13
7
K9
IN
IN
Temperature measurement input.
By inputting DC voltage corresponding to the temperature detected by the
thermistor, this input is converted into temperature by the A/D converter in
which LSI (IX2107YA) is built in.
The following is the relationship between signals and detected temperatures.
K13 (Low temperature measurement) . . . . .40°C, 70°C
K 9 (High temperature measurement). . . . .l 10°C, 130°C, 150°C, 180°C,
200°C, 220°C, 230°C, 250°C
8
K5
IN Signal coming from touch-key.
When either one of [=I , 151 , -1 or 1-1 key is touched,
a corresponding signal out of S7 - S4 will be input into KS.
When no key is touched , the signal is held at “L” level (-15V).
9
Kl
IN
Signal similar to K5.
When either one of
(-1 , /llso”cll , [ml or [-COOK] key is totid,
a corresponding signal will be input into K1.
10
Ko
IN Signal similar to K5.
When either one of p] ,
-1 or -12oo”cJj key is touched, a correspond-
ing signal will be input into Ko.
11
K4
IN
Signal similar to K5.
When either one of
[El , 141 , ISTOP] or [CONVECTION) key is touched,
a corresponding signal will be input into Kq.
12
K8
13 K
12
IN
IN
Terminal not used.
To input a signal which communicates the damper open/close information to LSI.
Damper opened:
“H” level signal (OV: GND)
Damper closed:
“L” level signal (-15V: VDD)
64