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HP CyberChiller Series Service Manual Page 25

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23
R-320FK
R-320FQ
R-320FW
23 P114 OUT Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to ANI7, P100, P101, P102
and P103 terminal while one of G4 line keys on key matrix is touched.
24 P115 OUT Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to ANI7, P100, P101, P102
and P103 terminal while one of G3 line keys on key matrix is touched.
25 P116 OUT Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to ANI7, P100, P101, P102
and P103 terminal while one of G2 line keys on key matrix is touched.
26 P117 OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to ANI6, ANI7, P100, P101,
P102 and P103 terminal while one of G1 line keys on key matrix is touched.
27 AVSS IN Connected to VC.
28 ANI0 OUT Terminal not used.
29-31 ANI1-ANI3 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.
32 ANI4 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.
33 ANI5 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.
34 ANI6 IN Input terminal to judge the model.
The signal out of P117 will be input into ANI6 through G1 line on key matrix. The LSI will
judge the model by this signal.
35 ANI7 IN Signal coming from touch key.
When either G13 line on key matrix is touched, a corresponding signal out of P110 - P117
will be input into ANI7. When no key is touched, the signal is held at “H” level.
36 VDD0 IN Power source voltage : GND(0V).
The power source voltage to drive LSI is input to VDD0 terminal.
37 AVREF IN A/D converter power source voltage : GND(0V).
The power source voltage to drive the A/D converter. Connected to GND.
38 P100 IN Signal similar to ANI7.
When either G12 line on key matrix is touched, a corresponding signal will be input into
P100.
39 P101 IN Signal similar to ANI7.
When either G11 line on key matrix is touched, a corresponding signal will be input into
P101.
40 VSS1 IN Power source voltage : -5.0V.
The power source voltage to the drive LSI is input to VSS1 terminal. Connected to VC.
41 P102 IN Signal similar to ANI7.
When either G10 line on key matrix is touched, a corresponding signal will be input into
P102.
42 P103 IN Signal similar to ANI7.
When either G9 line on key matrix is touched, a corresponding signal will be input into
P103.
43 P30 OUT Terminal not used.
44-48 P31-P35 OUT Used for initial balancing of the bridge circuit (absolute humidity sensor).
Pin No. Signal I/O Description
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