Chapter 2. Explamation Of Circuit And Op; Block Diagrams - Sharp AE-X26FR-N Service Manual

CHAPTER 2.
AYXP26FRN
EXPLAMATION OF CIRCUIT AND OPERATION

[1] BLOCK DIAGRAMS

1. Indoor unit
DC power supply circuit
Fan motor PWM control circuit
Rotation pulse input circuit
AC clock circuit
Remote controller signal reception circuit
Buzzer drive circuit
CPU reset circuit
CPU oscillator circuit
CPU
Room temp. detect circuit
Heat exchanger pipe thermo circuit
EEPROM
Select circuit
Serial I/O circuit
Power supply relay drive circuit
Auto restart circuit
Test run circuit
Auxiliary mode
Power on circuit
Cluster generator drive circuit
Cluster generator sensor circuit
Serial signals
Louvre motor drive circuit(upper)
Sub
Louvre motor drive circuit(lower)
CPU
LED drive circuit
Service Manual
Rectification circuit
2A
Fuse
Indoor fan motor
Fan motor pulse detect
Wireless remote control operation
Audible operation confirmation
Room temp. thermistor
Heat exchanger pipe thermistor
Louvre angle, fan speed
Wireless, preheat, Model select
Indoor/outdoor control signal I/O
Outdoor unit power supply on/off control
Test run (forced operation)
Auxiliary mode button ON/OFF
Self diagnostics, fault diagnosis
Cluster generator
Flow direction control (louver motor upper)
Flow direction control (louver motor lower)
LED display
2 – 1
AYXP26FRN
AC power
3.15A
Fuse
Unit-unit wiring
(AC power and
serial signals)