PBA Diagram and Parts List
Samsung Electronics
177
5-1 Main PBA DC (cont.)
①
#1 RXD
#2 TXD
#3 N-TRST
#4 TDO
#5 TCK
#6 TDI
#7 TMS
#8
#9 GND
#10 5V
②
#1 KEY_IN_3
#2 GRID_8
#3 KEY_IN_4
③
#1 GND
#2
#3 5V
#4 EEPROM_SELECT
#5 EEPROM_SO
#6 EEPROM_SI
#7 EEPROM_CLOCK
④
#1 GND
#2 5V
⑤
#1 12V
#2 GND
⑥
#1 5V
#2 GND
⑦
#1 COM_B
#2 COM_A
⑧
#1 12V
#2 EEPROM CHECK OUT
#3 COMP CHECK OUT
⑨
#1 5V
#2 GND
#3 ROOM TEMP2
#4 HUMIDITY
⑩
#1 12V
#2
#3 GND
#4 SNOW SENSOR
#5 PSD POWER
⑪
#1 5V
#2 COMP2 OIL TO
#3 COMP2 OIL BOTTOM
#4 GND
#5 GND
⑫
#1 5V
#2 COMP1 OIL TO
#3 COMP1 OIL BOTTOM
#4 GND
#5 GND
⑬
#1 12V
#2
#3 BASE HEATER OUT
⑭
#1 12V
#2 AUTO CHARGE VALVE OUT
#3 12V
#4 AUTO CHARGE LIQUID VALVE OUT
⑮
#1 GND
#2 5V
⑯
#1 DRED1
#2 DRED2
#3 DRED3
#4 GND
#5 5V
⑰
#1 12V
#2 PUMP DOWN START OUT
#3 12V
#4 PUMP DOWN END OUT
⑱
#1
#2 LOW PRESSURE SENSOR
#3 GND
#4 5V
⑲
#1
#2 HIGH PRESSURE SENSOR
#3 GND
#4 5V
⑳
#1
#2 MID PRESSURE SENSOR
#3 GND
#4 5V
㉔
#1 EEV3 A OUT
#2 EEV3 B OUT
#3 EEV3 A BAR OUT
#4 EEV3 B BAR OUT
#5 12V
㉔
#1 EEV4 A OUT
#2 EEV4 B OUT
#3 EEV4 A BAR OUT
#4 EEV4 B BAR OUT
#5 12V
㉔
#1 EEV1 B BAR OUT
#2 EEV1 A BAR OUT
#3 EEV1 B OUT
#4 EEV1 A OUT
#5 12V
#6 12V
㉔
#1 EEV2 B BAR OUT
#2 EEV2 A BAR OUT
#3 EEV2 B BOUT
#4 EEV2 A OUT
#5 12V
#6 12V
㉔
#1 COMP1 DISCHARGE
#2 GND
#3 COMP1 TOP
#4 GND
#5 COND OUT
#6 GND
#7 AIR
#8 GND
㉔
#1 SUCTION2
#2 GND
#3 COND IN
#4 GN
#5 SUCTION3
#6 GND
㉔
#1 SUCTION1
#2 GND
#3 EVI IN
#4 GND
#5 EMI OUT
#6 GND
㉔
#1 LIQUID
#2 GND
#3 COMP2 DISCHARGE
#4 GND
#5 COMP2 TOP
#6 GND
㉕
#1 12V
#2 INVERTER SMPS OUT
#3 C-BOX COMM
#4 GND
DOWNLOAD
MOD SELEECTOR
EEPROM
EXTERNAL-CONTROL
12V
5V
F1/F2
EXTERNAL-OUTPUT
HUMIDITY
SNOW SENSOR
COMP OIL2
COMP OIL2
BASE HEATER
GAS AUTO CHARGE
GAS LEAK CONTROL
DRED
GAS LEAK OUTPUT
LOW PRESSURE
HIGH PRESSURE
MID PRESSURE
EVI EEV
HR EEV
EEV1
EEV2
AIR/COND-OUT/TOP1/DIS1
COND-IN/SUCT2
EVI-OUT/EVI-IN/SUCT1
TOP2/DI2/LIQUID
C-BOX COMM
