Toshiba RAS-10YKV-E Service Manual page 22

For INDOOR UNIT
220–230–240 V
~ 50/60 Hz
Discharge
temp. sensor
Outdoor air
temp. sensor
Suction temp.
sensor
Heat exchanger
temp.sensor
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MICRO-COMPUTER BLOCK DIAGRAM
MCC808 (P.C.B)
Inddor unit
send/receive
M.C.U
circuit
• PWM synthesis function
• Input current release control
• IGBT over-current detect control
• Outdoor fan control
• High power factor correction control
• Inverter output frequency control
• A/D converter function
• P.M.V. control
• Discharge temp. control
• 4-way valve control
• Signal communication to indoor unit
High Power
factor Correction
circuit
Noise Input current
Filter sensor
Driver circuit
of P.M.V.
P.M.V.
Rotor position
detect circuit
Rotor position
detect circuit
Over current
detect circuit
Over current
sensor
Clock
frequency
16MHz
Converter Over current
(AC DC)
Relay Over current
circuit sensor
4-way
valve
OUTDOOR UNIT
Gate drive
circuit
Gate drive
circuit
Outdoor
Inverter
Fan motor
sensor (DC AC)
Inverter
(DC AC)
Compressor