Sharp Carousel R-3S56 Instrukcja serwisowa - Strona 17

Przeglądaj online lub pobierz pdf Instrukcja serwisowa dla Kuchenka mikrofalowa Sharp Carousel R-3S56. Sharp Carousel R-3S56 36 stron.
Również dla Sharp Carousel R-3S56: Instrukcja obsługi z książką kucharską (46 strony)

Drukuj stronę
LSI(IZA588DR):
The I/O signal of the LSI(IZA588DR) is detailed in the following table.
Pin No.
Signal
1
X
OUT
2
X
IN
3
RESET
4
R7
0
5
R7
1
6
R7
2
7 -10
R4
R4
0 -
3
11-13
R5
R5
0 -
2
14
VSS
15
R5
3
16
R6
0
17
R6
1
18
R6
2
19
R6
3
20
INT2
DESCRIPTION OF LSI
I/O
OUT
Internal clock oscillation frequency control output.
Output to control oscillation input of X
IN
Internal clock oscillation frequency input setting.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit with
respect to X
terminal.
IN
IN
Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is supplied. Temporarily
set to "L" level the moment power is supplied, at this time the LSI is set. Thereafter set
at "H" level.
OUT
Magnetron high-voltage circuit driving signal.
To turn on and off the cook relay. In Low operation, the signals holds "L" level during
microwave cooking and "H" level while not cooking. In other cooking modes
(70%,50%,30%,10%) the signal turns to "L" level and "H" level in repetition according
to the power level.
OUT
Oven lamp,turntable motor and cooling fan motor driving signal. (Square
Waveform : 50Hz)
To turn on and off the control relay. The pulse signal (50Hz) is delivered to the control
relay driving circuit and cook relay control circuit.
OUT
Terminal not used.
OUT
Digit selection signal.
Refer to the touch control panel circuit about the relation between signals and digits.
Normally, one pulse is output in every synchronized signal period, and input to the light
emitting diode.
OUT
Segment data signal.
Refer to the touch control panel circuit for the relationship between signals and
indicators. Normally, one pulse is output in every synchronized signal period, and
input to the anode of the light emitting diode.
IN
Connected to VC.
OUT
Segment data signal.
Signal similar to R5
OUT
Segment data signal.
Signal similar to R5
Switch strobe signal.
Signal applied to tact switch section. A pulse signal is input to R8
one of diode D91 line switches on switch matrix is touched.
OUT
Segment data signal.
Signal similar to R5
Switch strobe signal.
Signal applied to tact switch section. A pulse signal is input to R8
one of diode D92 line switches on switch matrix is touched.
OUT
Segment data signal.
Signal similar to R5
Switch strobe signal.
Signal applied to tact switch section. A pulse signal is input to R8
one of diode D93 line switches on switch matrix is touched.
OUT
Segment data signal.
Signal similar to R5
IN
Signal synchronized with commercial source frequency(50Hz).
This is basic timing for time processing of LSI.
Description
.
OUT
.
0
0.
0.
0.
.
0
15
R-3S56
-R8
terminal while
1
3
-R8
terminal while
1
3
-R8
terminal while
1
3