Sharp Carousel R-3S56 Service Manual - Page 18

Browse online or download pdf Service Manual for Microwave Oven Sharp Carousel R-3S56. Sharp Carousel R-3S56 36 pages.
Also for Sharp Carousel R-3S56: Operation Manual With Cookbook (46 pages)

Print Page
R-3S56
Pin No.
Signal
I/O
21
R8
1
22
R8
2
23
R8
3
24
R9
OUT
0
25
SO
OUT
26
SCK
OUT
27
KEO
28
VDD
IN
Signal coming from touch tact switch.
When either one of resistor R9
corresponding signal will be input into R8
IN
Signal coming from touch tact switch.
When either one of resistor R9
corresponding signal will be input into R8
IN
Signal coming from touch tact switch.
When either one of resistor R9
corresponding signal will be input into R8
Terminal not used.
Signal to sound buzzer.
A: key touch sound(0.12 sec.).
B: Completion sound(2.4 sec.).
Connected to GND. (Pull up through resistor R2)
IN
Input signal which communicates the door open/close information to LSI.
Door closed; "H" level signal.
Door opened; "L" level signal.
IN
Connected to GND.
Description
line switches on switch matrix is touched, a
3
1.
line switches on switch matrix is touched, a
2
2.
line switches on switch matrix is touched, a
1
3.
16