Read Sharp AU-X095 Service Manual online
9
AH-X075E/X095E
AU-X075E/X095E
AY-X075E/X095E
AE-X075E/X095E
AU-X075E/X095E
AY-X075E/X095E
AE-X075E/X095E
Specification Switching Circuit No. 2
The CPU inputs each analog voltage and changes the internal data of the program using the AD converted data.
Test Input Circuit
This circuit is used for testing. When the connection indicated by the dotted line in the above diagram is shorted, the
unit is put in time compression mode.
unit is put in time compression mode.
Temperature Sensor Circuit
There are two thermistors TH1 and TH2 in the temperature sensor circuit. They are connected in serial with resistors
R14 and R15, and the divided voltage is applied to CPU IC1 analog input pins 62 and 63. CPU IC1 performs AD
conversion on the analog voltages from these two thermistors and performs the most appropriate control.
R14 and R15, and the divided voltage is applied to CPU IC1 analog input pins 62 and 63. CPU IC1 performs AD
conversion on the analog voltages from these two thermistors and performs the most appropriate control.
R31 R33
R35 R37 R39
R30
5V
R32
R34 R36
JP25
R38
CPU (IC1)
Internal fan speed adjustment
Heat exchanger compensation
Outdoor heater rating frequency
Outdoor cooler rating frequency
5V
R13
CPU (IC1) pin 61
+
C11
5V
R15
R14
TH1
TH2
–
+
C12
–
CPU (IC1) pin 63
CPU (IC1) pin 62
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