Pcb Diagram - Samsung AC035FCADEH/EU Service Manual

5. PCB Diagram

5-1 PCB Diagram
5-1-1 Indoor Unit
1
①
Main power input
1(L):Phase L
2(N):Phase N
⑤
Eva in/out sensor
#1:EVA IN temperature sensor
#2,4,6:GND
#3:EVA Out temperature sensor
#5:EVA discharge
⑨ VENT
#1:DC12V
#2:VENT_OUT
Human Sensor
⑬
#1:DC12V
#2:Com4_TXD
#3:Com4_RXD
#4:Human sensor reset
#5:GND
5-1
2
3
BLDC fan
②
#1:DC310V
#2:Not used
#3:AGND
#4:DC15V
#5:FAN RPM
#6:RPM FEEDBACK
⑥ Room temperature
#1:Room temperature sensor
#2:GND
Panel flaps
⑩
#1:DC12V
#2-5: Louver control signal
#6: DC12V
#7-10: :Louver control signal
External
⑭
#1,3:DC12V
#2:Error_CHK_OUT
#4:Comp_CHK_OUT
6
8
9
4
5
7
③
Earth wire
#1:GND
⑦
S/W download
S/W download
SPI
⑪
#1,2:GND
#3:SPI CONTROL
#4:Not Used
External
⑮
#1:EXT_CTRL
#2:GND
10
13
14
12
11
13
15
④
Float switch
#1:Float_SW
#2:GND
⑧
Panel display
#1:DC12V
#2-5: LED control signal
#6: REMOCON signal out
#7,8: Not used
#9: REMOCON_INT
#10:GND
#11:Vcc
Drain Pump
⑫
#1:DC12V
#2:DRAIN_PUMP_OUT
COM1,COM2,V1,V2
⑯
F3-F4:Com2
V1-V2:DV12V
F1-F2:Com1
Samsung Electronics
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