Samsung WF405ATPASU/A2, Service Manual

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28 _ PCB Diagram
5. PCB DIAgRAM
5-1. MAIN PCB
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Location Part No. Function Description
1 CN11 PBA Power Supply Supply 120V of AC power.
2 RY7 Main Relay Be Supplied PBA power when the Power button is pressed.
3 RY8 Dry Heater Relay The switch for the Dry Heater power.
4 RY2 Washing Heater Relay The switch for the Washing Heater power.
5 CN2 Fan motor Connection Port Supply the 3-phase drive voltage for the FAN Motor.
6 CN3 MEMS Connection Port
Supply power to the MEMS PBA and provides a communications
function.
Location Part No. Function Description
7 CN5
Smart dispenser Connection
Port
Supply power to the dispenser PBA and provides a
communications function.
8 CN6 Sensor Connection Port
Supply power to the sensor and provides a communications
function.
9 CN4 LCD PBA Connection Port
Supply power to the LCD PBA and provides a communications
function.
10 CN9 Smart test FLash Writing Port Supply SET MAIN LINE smart test
11 CN7 SUB PBA Connection Port
Supply power to the SUB PBA and provides a communications
function.
12 CN10 Each Load Connection Port The port to supply power for each electric device.
DB
2
1
3
4
12
11
10 9 8 7 6 5