Hitachi RAC-50WPC - Block Diagram and Circuit Operations

EEPROM
AX-13D72 )(
DC fan motor
drive circuit
BLOCK DIAGRAM
INDOOR UNIT
Buzzer circuit
Indicating lamp
Vertical sweep motor
Horizontal sweep motor
Operation
Timer
Indoor microcomputer
Stepping motor drive circuit
Wireless remote
controller
Wireless receive
Reset circuit
Control
Power circuit
Room temperature
thermistor
Heat exchanger
thermistor
Oscillator clock
circuit
Indoor / Outdoor
interface circuit
Indoor DC fan motor
/send circuit
MODEL
RAK-35RPC,RAK-50RPC
Outdoor unit
1
2
3
2
33