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
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