PCB Diagram and Parts List
504 Samsung Electronics
①
#1 : L
#3 : N
②
#1 : N
#3: HOT COIL or BYPASS CONTROL
SIGANL
③
#1 : N
#3 : DAMPER CONTROL SIGANL
④
#1 : THERMAL FUSE SIGNAL
#2 : GND
⑤
#1 : EVI IN TEMP. SENSOR
#3 : EVI OUT TEMP. SENSOR
#5 : DISCHARGE TEMP. SENSOR
#2,4,6 : GND
⑥
#1 : DRAIN PUMP CONTROL SIGNAL
#2 : GND
⑦
#1~8 : DOWNLOAD SIGNAL
#9 : GND
#10~11 : DC 5V
#12~16 : DOWNLOAD SIGNAL
#17 : GND
#18~20 : DOWNLOAD SIGNAL
⑧
#1 : FLOAT SWITCH SIGNAL
#2 : GND
⑨
#1 : DC 12V
#2 : ERROR CHECK SIGNAL
#3 : DC 12V
#4 : COMP CHECK SIGNAL
⑩
#1 : ROOM TEMP. SENSOR
#2 : GND
⑪
#1 : GND
#2 : EXTERNAL CONTROL SIGNAL
⑫
#1 : EARTH
⑬
#1 : DC 12V
#3~10,13 : PANEL SIGNAL
#11 : GND
#12 : DC 5V
⑭
#1 : GND
#2 : NOT USED
#3 : DC 5V
#4~7 : EEPROM SIGNAL
⑮
#1~4 : EEV CONTROL SIGNAL
#5~6 : DC 12V
⑯
#1~2 : GND
#3 : SPI CONTROL SIGNAL
#4 : NOT USED
⑰
#1 : DC 12V
#2~5 : COMMUNICATION SIGNAL
#6 : DC 5V
#7~12 : COMMUNICATION SIGNAL
⑱
#1 : DC 12V
#2 : VENTILATOR CONTROL SIGNAL
⑲
#1~2 : COM1 COMMUNICATION
SIGNAL
#3 : DC 12V
#4 : GND
#4~6 : COM2 COMMUNICATION
SIGNAL
⑳
#1 : DC 310V
#3~6 : FAN MOTOR CONTROL SIGNAL
CN100-AC POWER CN702-HOT COIL or BYPASS
CN703-DAMPER CN140-THERMAL FUSE
CN413-EVA IN/OUT/DIS TEMP.
SENSORSENSOR
CN103-DRAIN PUMP
CN301-DOWNLOAD
CN411-FLOAT SWITCH
CN81-ERROR/COMP CHECK CN412-ROOM TEMP. SENSOR
CN83-EXTERNAL CONTROL SH101-EARTH
CN501-DISPLAY CN201-EEPROM
CN808-EEV(DVM) CN801-SPI
CN311-2WIRE SUB CN804-VENTILATOR CN302-COMMUNICATION CN703-BLDC MOTOR
Floor Standing (Cont.)
■ Main PCB (AM666MNFDEH6) (Cont.)
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