5-2) Connector Layout With Part Position (Main Board) - Samsung RF28R7201 AA Series Service Manual

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PCB DIAGRAM

5-2) Connector Layout with part position (Main Board)

CN40
2. INNER PANEL TX
4. INNER PANEL RX
6. +12V
8. GND
10, 12. FZ ROOM LAMP,
GND
11. C-FAN FEEDBACK
13, 15. C-FAN SIGNAL,
GND
14, 16. MID DOOR S/W,
GND
CN20
1, 3. FF DOOR S/W, GND
2, 4. FZ DOOR S/W, GND
5, 7. FF-DEF SENSOR, GND
6, 8. FZ-DEF SENSOR, GND
9, 11. FF SENSOR, GND
10, 12. FZ SENSOR, GND
13. FF-FAN FEEDBACK
14. FZ-FAN FEEDBACK
15, 17. FF-FAN SIGNAL, GND
16, 18. FZ-FAN SIGNAL, GND
19. ICE ROOM HEATER
20. ICE ROOM-FAN FEEDBACK
21. ICE PIPE HEATER
22, 24. ICE ROOM-FAN SIGNAL, GND
23. +12V
CN70
1. FRENCH/DISPENSER HEATER
3. FF-DEF HEATER
5. FZ-DEF HEATER
7. COM2
CN70_1
1.FDSR-HEATER
5. ICE MAKER HEATER
CN71
1. ICE COVER ROUTE G-MOTOR
3. WATER SOL-VALVE
5. ICE/WATER SOL-VALVE
CN71_1
1. CUBE-MOTOR
3. AUGER-MOTOR
5. COM1
17, 19. DAMPER B, B'
18, 20. MID ROOM
SENSOR, GND
21, 23 DAMPER A' , A
22, 24. AUTO FILL
CN04
VALVE, GND
1. WI-FI RX
25, 27. DAMPER H/T,
2. GND
+12V
3. WI-FI TX
26, 28. FF ROOM LAMP,
4. WI-FI
GND
RESET
5, +12V
6. +5V
CN85
1. COM1
3. COM2
CN60
1. +5V
3. GND
5. AMBIENT
SENSOR
7. HUMIDITY
SENSOR
8. ICE&WATER S/
W
10. COVER ICE
ROUTE S/W2
12. COVER ICE
ROUTE S/W1
100
16. GND
17, 19. MID ROOM
LAMP
18. +12V
20. DISPENSER
PANEL RX
22. DISPENSER
PANEL TX
24, 26. DISPENSER
VALVE,
GND
CN90
2, 4. GND, ICE ROOM SENSOR
6. MOTOR DRIVER(INA)
8. MOTOR DRIVER(Ys2B)
10. MOTOR DRIVER(INB)
11, 13. OVER FLOW S/W, GND
12. IR SENSOR
14. EJECTING SENSOR
15. AUTOFILL WATER BOX S/W
16. ICE MAKER TEST S/W
17. +5V
18. +12V
19. WATER SENSOR
20. HALL IC OUT SIGNAL
21. GND
22. +5V
23, 25. FLOW SENSOR, GND
24, 26. GND, GND
27. +5V
28. +5V
CN102
1. COMP U
2. COMP V
3. COMP W
CN85
1. COM2
3. COM1
5. EARTH