Sharp R-9570 Service Manual page 15

RL9570
Pin No.
Signal
I/O Description
35-39
R2-R6
OUT
Teminal not used. Connected to VC.
40 R7 IN Terminal not used. Connected to GND.
41 E37 IN
Terminal to change the functions according to the Model.
Connected to El 9 Terminal by D 100 and R200.
42 E36
43 AVSS
44 AVR-
IN
IN
IN
Input signal which communicates the door open/close information to LSI.
Door closed; "H" level signal
(OV).
Door opened; "L" level signal (-5V)
Connected to VC.
Reference voltage input terminal.
A reference voltage applied to the A/D converter in the LSI.
The reference voltage is generally maintained at -5V.
45 AVR +
46 AVCC
47
AN7
IN
Reference voltage input terminal.
A reference voltage applied to the A/D converter in the LS I.
Connected to GND. (OV)
L
IN
Connected to GND.
IN
Signa! coming from touch-key.
When either one of G-l 1 line keys on key matrix is touched, a corresponding signal out
of E8, E12, E13, El 5, El 6 and El 7 will be input into AN7.
When no key is touched, the signal is held at "L" level.
48 AN6
49
AN5
IN
IN
Signal similar to AN7.
When either one of G-10 line keys on key matrix is touched, a corresponding signal will
be input into AN6.
Signal similar to AN7.
When either one of G-9 line keys on key matrix is touched, a corresponding signal will
be input into AN5.
50 AN4 IN
Signal similar to AN7.
When either one of G-8 line keys on key matrix is touched, a corresponding signal will
be input into AN4.
51 AN3 IN Used for initial balancing of the bridge circuit (absolute humidity sensor).
This input is analog input terminal from the AH sensor circuit, and connected to the
A/D converter built into the LSI.
52 AN2 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.
53 AN1
54 AN0
IN
IN
Terminal not used. Connected to GND.
Temperature measurement input.
By inputting DC voltage corresponding to the temperature detected by the temperature
probe, this input is converted into temperature by the A/D converter which is built in to
the LSI.
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