Sharp KB-6015KS Service Manual page 20

KB-6015KS
KB-6015KK
KB-6015KW
The I/O signal of the LSIis detailed in the following table.
Pin No. Signal
1 - 3 AN5- AN3
4 AN2
5 AN1
6 AN0
7 CNVSS
8 RESET
9 P62 OUT
10 P61 IN/OUT Turminal not used.
11 VSS
12 XIN
13 XOUT OUT
14 VCC
15 P60
16 P37
17 P36 OUT
18 TXOUT OUT
19 P34 OUT
20 RXD2
21 TXD2
22 SCLK2 OUT
23 P30 OUT
24 - 25 OUT
COM3 - COM2
26 COM1 OUT
DESCRIPTION OF LSI (IC-1)
I/O
IN Terminal to change cooking input according to the Model.
By using A/D converter contained in the LSI, DC voltage in accordance with the Model
in operation is applied to set up its cooking constant.
IN Input signal which inform the drawer door is in the middle position between the opened
position and the closed position, to LSI from the door position switch rear.
IN Turminal not used.
IN Turminal not used.
IN Power source voltage: 0V (GND).
VC voltage of power source circuit input. Connected GND.
IN Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is applied. Temporarily set
to "L" level the moment power is applied, at this time the LSI is reset. Thereafter set at "H"
level.
Turminal not used.
IN Power source voltage: 0V (GND).
VS voltage of power source circuit input. Connected GND.
IN Internal clock oscillation frequency setting input.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit with
respect to Xout terminal.
Internal clock oscillation frequency control output.
Output to control oscillation input of Xin.
IN Power source voltage: +5V.
VC voltage of power source circuit input.
IN Plus signal coming from the Microwave drawer door open-close motor is input into P60
as revolution number.
IN Input signal which communicates the drawer door open information to LSI from
the door position switch front.
Door opened; "L" level signal(0V).
Door closed; "H" level signal(+5V).
Signal to change the rotational direction is output to the Microwave drawer door
open-close motor.
Signal to change the rotational speed is output to the Microwave drawer door open-close
motor.
Power source to drive the Microwave drawer door open-close motor is output.
IN Input terminal to check the data of display.
Data signal from IC-2 is input to RXD2 to check the flow of the data.
IN Output terminal to send IC-2 the data.
The data of display is output to IC-2.
Clock timing signaI output terminal.
Clock timing signal is sent to IC-2.
Signal to reset LSI.
Signal is output to reset IC-2.
Turminal not used.
Common data signal.
Connected to LCD signal C5.
Description
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