Samsung AC071MN4PKH Service Manual page 108

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Outdoor Unit PCB (cont.)
■ PF#5 Inverter PCB : Single-phase III
- AC140MXADKH
8
2
Reactor-A1/B1
#Reactor-A1 : WHT
#Reactor-B1 : WHT
CN901 – FAN1
#1 : DC310V #2 : N.C
#3 : GND
#4 : DV15V
#5 : FAN RPM
#6 : FAN RPM Feedback
1
Reactor-A2/B2
#Reactor-A2 : BLK
#Reactor-B2 : BLK
CN911 – FAN2
#1 : DC310V #2 : N.C
#3 : GND
#4 : DV15V
#5 : FAN RPM
#6 : FAN RPM Feedback
4
3
CN351 - Main COMM
#1 : RXD
#2 : TXD
#3 : GND
#4 : DV5V
#5 : DV12V
#6 : INV, SMPS SIGNAL
CN401,402,403 – Compressor
CN401 : Compressor U-phase(RED)
CN402 : Compressor V-phase(BLU)
CN403 : Compressor W-phase(YEL)
5-11
PCB Diagram and Parts List
7
6
5
CN551 – Downloader
#1 : RXD_INV #7 : TMS_INV
#2 : TXD_INV
#8 : nTRST
#3 : BOOT_INV #9 : GND
#4 : TDO_INV #10~#11: 5V
#5 : TCK_INV
#14 #18 #19 : ENC
#6 : TDI_INV
#17 : GND
#20 : SUB
L, N- 220V Power
1 : L-Phase/BRN
#2 :N-Phase/SKY

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