Sharp R-9320 Service Manual page 45

R-9320
R-9450
Signal I/O
Description
Pin No.
28
29
30
31
OUT
QO
Ql
Key strobe signal.
Signal applied to touch-key section.
A pulse signal is generated while 4, 7,
being touched.
OUT
Key strobe signal.
Signal applied to touch-key section.
A pulse signal is generated whiie 5,8, -1 or / 1 key is being touched.
4
Q2
OUT Key strobe signal.
Signal applied to touch-key section.
A pulse signal is generated while 6, 9, (ml or i
] key is being
5
touched.
Q3
OUT Not used. Test mode strobe signal.
32
vss
IN
Connected to GND.
33
T
OUT
Signal to sound buzzer.
A: Key touch sound.
B: Completion sound.
C: Sound with the turnover temperature by sensor temperature
cooking.
0.1 sec.
A:
1
1 sec.1 sec.
-4
r
.
1
,A-l-
T 400x10-'
- 2.5 kHz
34
PO
OUT
Key strobe signal.
Signal applied to touch-key
section.
A pulse signal is generated while 0, pi,
key is being touched.
: R-9450 only)
35 Pl
OUT Key strobe signal.
Signal applied
to touch-key section.
A pulse signal is generated while 1,
key is being touched.
: R-9450 only 1
43