Indoor Unit Power Pcb - Samsung AM022FN1DEH/TK Service Manual

5-1-5 Indoor Unit Power PCB

5
①
TB100 - POWER T/B
#1 : POWER CORD CONNECTION - L
(L1)
#2 : POWER CORD CONNECTION - N
(L2)
⑤
TB300 - COMM. T/B
#1 : F1 – INDOOR/OUTDOOR COMM.
#2 : F2 – INDOOR/OUTDOOR COMM.
#3 : V1 – 12V
#4 : V2 - SGND
#5 : F3 - WIRED REMOTE CONTROL
COMM.
#6 : F4 - WIRED REMOTE CONTROL
COMM.
Samsung Electronics
6 4
②
CN101 - EARTH
#1 : EARTH (PBA – SET GND)
⑥
CN100 – POWER TO MAIN CONNECTOR
[CN81]
#1, 3 : 12V
#2 : ERROR CHK (12V JUNCTION)
#4 : COMP CHK (12V JUNCTION)
[CN83]
#1 : EXT_CTRL (5V)
#2 : SGND
3
③
CN900 - MAIN FAN MOTOR
[CN81]
#1 : 310V (DC LINK)
#2 : NC
#3 : PGND
#4 : 15V (VCC)
#5 : MAIN FAN MOTOR PWM
#6 : MAIN FAN MOTOR F/B
PCB Diagram and Parts List
2 1
④
CN102 – THERMAL FUSE
#1 : FUSE SHORT/OPEN CHK
#2 : SGND
5-9