Samsung AVXTJH028EE - Page 357

PCB Diagram and Parts List
Samsung Electronics 6-10
Duct type(Slim)(cont.)
■ MAIN PCB(cont.)
①
#1: GND
#2: Floating Switch signal
②
#1: ROOM Temp. Sensor
#2: GND
#3: EVA IN Temp. sensor
#4: GND
③
#1: FAN LOW Signal
(AC 220V L phase output)
#2: FAN MID Signal
(AC 220V L phase output)
#3: FAN HIGH Signal
(AC 220V L phase output)
④
#1: EVA OUT Temp. Sensor
#2: GND
⑤
#1: GND
#2: Heater Discharge Temp. Sensor
Signal
⑥
#1: DC12V
#2: ERROR CHK signal
#3: DC12V
#4: COMP CHK signal
⑦
#1: DC12V
#2: GND
⑧
#1: GND
#2: External Control signal point input
⑨
#1~#4: EEV Control Signal
#2: DC12V
⑩
#1,#2: Buzz control
#3~#7: Display control
#8:Operating switch
#9: Remocon receiving signal
#10:GND
#11: DC5V
⑪⑫
#1: Comm. Signal F1
#2: Comm. Signal F2
⑬
#1: Comm. Signal F3
#2: Comm. Signal F4
⑭
#1,3: Trans OUtput connect
⑮
#1: AC Power L
#2: AC Power N
⑯
#1: AC Power L
#2: AC Power N
⑰
None
⑱
#1: DC12V
#2: Fan Control Signal
⑲
None
⑳
#1: N phase
#2: heated water coil signal
㉑
#1: N phase
#2: Drain signal
㉒
#1: N phase
#2: Ventilator signal
CN43- CCH Temp. sensor CN81- External CHECK CN32-Wire Remocon Power CN83- External Control
CN51- Floating Switch
CN41- ROOM/EVA, IN Temp.
Sensor
CN76-SUB PCB Connector
CN42- ROOM/EVA, OUT Temp.
Sensor
CN62-EEV
CN91-Display CN10-Micom Download
CN31- Communication
(indoor unit F1/F2)
CN33- Communication2
(Wired remocon F1/F2)
CN11- Trans Out CN71-AC power CN72-Trans In
CN13-BLDC PCB Connector
CN77-Heated water coil
CN74- Drain Pump CN75- Ventilator
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