Samsung WF448AAP/XAA, Service Manual

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PCB Diagram _ 3 3
5 . PCB DIAGRAM
5 -1. MAIN PCB
Location Part No. Function Description
1 CN6 PBA Power Supply Supply 120V of AC power.
2 CN7 Reactor Connection Port Decrease generated noise when the motor is operated.
3 RY1 Main Relay Be Supplied PBA power when the Power button is pressed.
4 RY13 Washing Heater Relay The switch for the Washing Heater power.
5 RY11 Steam Heater Relay The switch for the Steam Heater power.
6 CN8 Motor Power Supply Port Supply the 3-phase drive voltage for the Washing Motor.
7 CN3 Hole Sensor Connection Port Detect whether the Washing Motor is working normally.
Location Part No. Function Description
8 CN10 SUB PBA Connection Port
Supply power to the Sub PBA and provides a communications
function.
9 IPM1 Washing Motor Drive IC Switches and supplies the voltages for the motor.
10 CN1 Each Load Connection Port The port to supply power for each electric device.
11 CN11 MEMS PBA Connection Port
Supply power to the MEMS PBA and provides a communications
function.
12 RY12 Dry Heater Relay The switch for the Dry Heater power.
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8
11
7
10
5
12
4
1
2
3
6
9