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
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