AU-X095 - Sharp Air Conditioner Service Manual (repair manual). Page 10

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10
AH-X075E/X095E
AU-X075E/X095E
AY-X075E/X095E
AE-X075E/X095E
Auxiliary Mode Circuit
HIGH (5V) is input to the CPU when switch SW1 is pressed. The CPU begins automatic operation when this is
detected.
Varistor and Fuse
The varistor protects the control circuit from a large power surge such as lightning. When the surge is large, the varistor
is shorted and the fuse blows. The varistor will also be broken. When this happens there will be a large crackling nose.
Replace the fuse and varistor.
NR1
FU1
AC 220/240V
R12
5V
SW1
CPU (IC1) pin 37
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