Sharp R-340DK Service Manual page 26

R- 340DK
R-340DW
Pin No. Signal
74 LWR OUT
75-76 MD0-MD1
77 MD2
78 Avcc
79 Vref
80 AN0
81 AN1
82 AN2
83 AN3
84 AN4
85 AN5
86 AN6
87 DA1 OUT
88 Avss
89 IRQ0
90-91 P81-P82 OUT
92 CS1 OUT
93 CS0 OUT
94 Vss
95-99 PA0-PA4 OUT
100 PA5 OUT
I/O
Terminal not used.
IN Connected to VCC.
IN Connected to GND.
IN A/D converter power source voltage : +5V.
The power source voltage to drive the A/D converter. Connected to VCC.
IN A/D converter power source voltage : +5V.
The power source voltage to drive the A/D converter. Connected to VCC.
IN Terminal to judge whether the model has the sensor cooking function or not.
By using the A/D converter contained in the LSI, DC voltage in accordance with the Model
in operation is applied to judge whether the model has the sensor cooking function or not.
IN Input terminal to judge the model.
The signal out of P40 will be input into AN1 through G15 line on key matrix. The LSI will
judge the model by this signal.
IN Terminal to change cooking input according to the model.
By using the 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 Connected to VCC.
IN To input signal which communicates the door open/close information to LSI.
Door close "H" level signal (+5V). Door open "L" level signal (GND).
IN Used for initial balancing of the bridge circuit (absolute humidity sensor). This input is an
analog input terminal from the AH sensor circuit, and connected to the A/D converter built
into the LSI.
IN AH sensor input.
This input is an analog input terminal from the AH sensor circuit, and connected to the
A/D converter built into the LSI.
The signal for the power source to drive the LCD is output to IC3.
IN A/D converter power source voltage : GND(0V).
The power source voltage to drive the A/D converter. Connected to GND.
IN Signal synchronized with commercial power source frequency.
This is the basic timing for time processing of LSI.
Terminal not used.
Chip select signal is output to CS terminal of IC5.
Chip select signal is output to CE terminal of IC2.
IN Power source voltage : GND (0V).
The power source voltage to drive the LSI is input to Vss terminal.
Used for initial balancing of the bridge circuit (absolute humidity sensor).
Clock signal is output to IC5.
Description
24
H : +5V
L : GND
16.7 msec.