Outdoor Unit; Main Pcb - Samsung AC018JN4DCH/AA Service Manual

PCB Diagram and Parts List

5-2 Outdoor Unit

5-2-1 Main PCB

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