Samsung K4578DHV2-VW, K4578DHV2=VY Service Manual

K4578DHV2[VW K4578DHV2[VY

CONTENTS

1. Exploded Views and Parts List

2. P.C.B Diagrams 3-1. PCB-DIAGRAM 3-2. Circuit Diagrams 3-3. Circuit Diagram of MAIN CONTROL 3-4. Circuit Diagrams of Main Parts

3. Error Mode

4. Symptoms of Errors and Related Parts List

5. Tools used for assembly and disassembly

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50404 Pdlq SFE0GLDJUDP

PCB Power

Power Relay

Relays

1.Hot Water Supply

2.Main Water Supply

3.Water Supply for Drying

4.Pre-water Supply

5.Door Close

6.Door Open

7.Pump

①

③④⑤⑥

②

⑦

Motor PowerReactor

IPM motor-driving micom

Display

Hall sensor

w/v,pump, door S/W

Drying Relay Power Relay Drying Relay

- 10 -

Main micom

50405 Vxe SFE0GLDJUDP

Course Selection Dial

Washing Temp. Setup

Silver Wash Course

Wash Selection

Number of Rinse Setup

Spin Speed Setup

- 11 -

Delay Start Setup

5051 Flufxlw Gldjudpv

- 12 -

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- 13 -

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1.Power

Power S/W

COM

Press of Power S/W switches NC to NO and makes Micom start to drive. At this moment, sequential sigals generated from Micom function to operate Power Relay continuously. One more press of Power S/W switches NC to NO and permits Micom to accept the signal. It will cut off Power by switching the Relay ON/OFF.

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+ 12 hidden pages