Sharp R-8320E Service Manual page 65

Pin No. Signal
1 IN
IN
2
3 IN
4 T'4 OUT
IN
5
VREF
6 IN
IN
7
8 IN
9 IN
10
IN
11 IN
12 IN
13 K IN
12
Connected to GND (0 volt).
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.
To change over temperature indicate mode ("FPC)
Note: Normally connected to "L" level (VDD) by printed pattern.
Terminal not used. Connected to
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.
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.
K 9 (High temperature measurement). . . . .l 10°C, 130°C, 150°C, 180°C,
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).
Signal similar to K5.
When either one of
a corresponding signal will be input into K1.
Signal similar to K5.
When either one of p] ,
ing signal will be input into Ko.
Signal similar to K5.
When either one of
a corresponding signal will be input into Kq.
Terminal not used.
To input a signal which communicates the damper open/close information to LSI.
"H" level signal (OV: GND)
Damper opened:
"L" level signal (-15V: VDD)
Damper closed:
64
Description
GND.
is touched,
key