Samsung WF806U4SA series - Troubleshooting and Information Codes; Common Problems and Solutions

PCB Diagram _ 35
5. PCB DIAGRAM
5-1. MAIN PCB
► ThisDocumentcannotbeusedwithoutSamsung’sauthorization.
Location Part No. Function Description
1 RY1
POWERSUPPLYRELAY Receive230VACtooperatePBA
2 RY3 HEATERRELAY Heaterpoweroutput
3 CN4 MOTORCONTROLTERMINAL Motorsignaloutput
4 CN3 REACTORTERMINAL ConnectwiththeReactor
5 CN5 DRIVINGSECTIONTERMINAL SignalOutputfordoorlock,watervalve,drainpumpandbubblepump.
6 CN2 POWERSUPPLYANDDOORCHECKTERMINAL Receive230VACtooperatePBAandDoorlockcheck
7 CN1 SUBPBACONNECTIONTERMINAL ConnectwithSUBPBA
8 - CONTROLLERBOARD ControlwholePBAandhaveProgramUpdateterminal
6
4
7
8
5
2
3
1