7-3) Pba Main - Samsung RR39M7 Series Service Manual

BLOCK DIAGRAM

7-3) PBA Main

- 1 BOARD
F DEF Heater
LOAD SECTION
Door Switch
DC5V
SWITCH
R Room Lamp
DC12V
LED PCB
DC12V
LED Lighting
Button Input
Key
Singal
DISPLAY
AC POWER INPUT
EMI Filter
Reset Circuit Diode Option
Load Control
Switch
Sensing Circuit
R Room Lamp
Control Circuit
Display
Control Circuit
BLDC Fan Motor
Control Circuit
DC12V Fan F/G
Motor Operation
FG Signal Occurrence
R/C FAN
BLDC FAN
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110V~230V /50Hz,60Hz
SMPS Circuit
Buzzer Circuit
EEPROM
Oscillator
COMP
Control Circuit
MICOM
(Inverter
Control)
MICOM
(Main Control)
UART Communication
Temperature /
Humidity Sensor
Sensing Circuit
Sensor Signal
R Room Lamp
F DEF
EXT
Humidity
SENSOR
108
COMP.
PLC
Wi-Fi Module
COMMUNICATION MODULE
* : Option
AC Power
DC Power
Signal