Pcb Diagram; Main Pcb - Samsung WA422PRHD Series Service Manual

5. PCB Diagram

5-1. main PCB

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7
6
4
2
3
Location Part no. Function
1 TE8 Motor Control
2 RY1 Main Relay
3 F1 FUSE
4 BD1 Making DC Voltage
5 CE6 Charging Voltage
28 _ PCB Diagram
1
5
Description
Control to Motor
Main Power Relay
Limit the Over-Current
It works to Change the AC to the DC
Charge the DC LINK (300V)
8
Location Part no. Function
6 IC1 Switching IC
7 TE6 Trans Circuit
SSR1~6
8 Load Control
TRIAC1~2
Door Lock Switch
9 Q5,RY2
Driving Circuit
10 IC6 Driving Circuit
10
Description
Making a stable DC
Chopping the DC Link
Turn ON/Off the Load(Valve etc.)
• Drive the Door Lock Switch
• Toggle CW/CCW
Drive the SSR or Relay
• Supply the Current to the Acting Current
9