Block Diagarm; Eration 1] Block Diagarm - Sharp AE-XM30GR Service Manual

CHAPTER 2.
AE-XM30GR
EXPLANATION OF CIRCUIT AND OPERATION

[1] BLOCK DIAGARM

CPU
1 A
Fuse
Power supply
Smoothing
circuit
circuit
CPU oscillator circuit
DC over voltage
detection circuit
Expansion valve A
drive circuit
Expansion valve B
drive circuit
Expansion valve C
drive circuit
Expersion valve D drive circuit
4-way valve relay
drive circuit
Outdoor fan motor relay
drive circuit
Power transistor module
drive circuit
Serial I/O circuit
CPU reset circuit
DC overcurrent detection
circuit / Power transistor
module overheat
AC overcurrent detection
circuit
Compressor thermo circuit
Heat exchanger pipe
thermo circuit
Outdoor temp. thermo.
circuit
Suction pipe thermo circuit
Heat sink thermo circuit
Unit A thermo. circuit
Unit B thermo. circuit
Unit C thermo. circuit
Unit D thermo. circuit
LED drive circuit
Pump down switch circuit
Wire check switch circuit
Position detection circuit
Service Manual
Active filter Filter
circuit circuit
DC power
supply circuit
Expansion valve A
Expansion valve B
Expansion valve C
Expansion valve D
3.15 A
Fuse
4-way
valve
Outdoor fan
2 A
motor
Fuse
Power
transistor module
20 A
Fuse
Compressor
Current transformer
(RE)
Compressor thermistor
Heat exchanger pipe
(OR)
thermistor
Outdoor temperature
thermistor (N)
Suction pipe thermistor (BK)
Heat sink thermistor (BK)
(BL)
Thermistor unit A
Thermistor unit B (WH)
(BR)
Thermistor unit C
(YE)
Thermistor unit D
LED
Compressor
2 – 1
AE-XM30GR
20 A
Fuse
AC power
Unit - unit
wiring
(AC power and
serial signals)
CN8A
CN8A
CN8A
CN8A
CN8B
Suction thermistor
CN8C