Samsung AC018JN4DCH/AA - Outdoor Unit; Main Pcb

PCB Diagram and Parts List
5-4 Samsung Electronics
5-2-1 Main PCB
QAC018JXADCH
5-2 Outdoor Unit
No. Function No. Function
1 MAIN POWER (N) 12
Sub display PCB connection
(DC5V,12V,com1,com2)
2 4Way Valve 13 SMPS PCB connection (DC15V)
3 FAN MOTOR connection 14 Download Main
4Indoor communication connection 15 SMPS PCB connection (DC5V,12V)
5N/A 16 Compressor connection (U,V,W)
6 EEV control17 Reactor
7Out/Discharge/Cond./OLP temp. sensor 18 SMPS PCB connection (AC220V)
8
DRED PBA connection
(
K DRED : Demand Response Enabling
Device)
19 MAIN POWER (L)
9
Sub display PCB connection
(Key, 7-segment signal)
20 EARTH
10
Sub display PCB connection
(Key, solution communication signal)
21 Download INV
11 EEPROM connection
17
12
1
2
11
15
10
16
3 6
5
7
14
13
4
9
8
18
19
20
21