Samsung WA7750M Service Manual Download Page 18 | Manualshive

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16 _ Disassembly and Reassembly

Part

Figure

Description

Top Cover Assembly

(continued)

14. Separate 3 screws from the Earth wire.

15. Before separating the hose, release the clip.

When releasing the clip, take care that

you do not tear the hose.

16. Separate the Top Cover Assembly by lifting.

You can check the Door SW/Water jet

SW.

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Summary of Contents for WA7750M

Page 1: ...Basic Name WA7750M Basic Code WA52M7750AW A4 Model Name WA50R5400AV WA7000R Model Code WA50R5400A WA50R5200A WA54R7600A WA54R7200A WA50T5300A 1 Safety Instructions 2 Features and Specifications 3 Dis...

Page 2: ...bly and reassembly 10 3 2 Standard disassembly drawings 11 4 Troubleshooting 21 4 1 Information modes 21 4 2 Corrective actions for each Check code 25 5 PCB diagram 30 5 1 Assy PCB main 30 5 2 Circuit...

Page 3: ...isconnect the power plug before servicing 4 Failing to do so may result in a risk of electric shock Do not allow consumers to connect several appliances to a single power outlet at the same time 4 The...

Page 4: ...acket heater it touches the drum and could cause noise and electric leakage AFTER SERVICING Check the wiring 4 Ensure that no part of the wiring harness makes contact with any rotating part or sharp e...

Page 5: ...control button using a sharp tool or object 4 This may result in electric shock or damage to the product WHILE SERVICING When wiring a harness make sure to seal it completely so no liquid can enter 4...

Page 6: ...asure the insulation resistance between the power plug and the grounding wire of the washing machine The value must be greater than 10M when measured with a 500V DC Megger Ensure washing machine is le...

Page 7: ...f Clean Keep your washing machine hygienically clean while being eco friendly and saving money Self Clean removes dirt and odor causing bacteria from the drum It uses soaking pulsating and high speed...

Page 8: ...0R5200A WA50T5300A DIMENSION Inches cm A Height 44 6 1132mm B Width 27 5 699mm C Height with Door open 58 3 1480mm D Depth 29 4 747mm WATER PRESSURE 20 116psi 137 800kPa WEIGHT 61kg 134lb 60kg 132lb C...

Page 9: ...s Yes Pulsator material STS PP PP PP Max rpm 750 750 750 750 Motor F DDM F DDM F DDM F DDM Design Color Black White Black White Black White Champagne Main display 18 88 18 88 18 88 18 88 Jog Dial Chro...

Page 10: ...10 13 Internal Heater Yes VRT PLUS Yes Pulsator material PP STS Max rpm 750 800 Motor F DDM DD Design Color White White Inox Main display 18 88 18 88 Jog Dial Chrome Chrome Led color Ice blue Ice blue...

Page 11: ...NGER DC61 00224B Default MANUAL BOOK DC68 04037A Model No WA50R54 DC68 04037C Model No WA50R52 Default CABLE TIE 6501 000121 Default ASSY CAP V W DC97 18313A Default LEG RING DC61 03458A 5 4cu ft Only...

Page 12: ...Pulsator 1 Assy stator 5 Support saddle 4 Assy clutch 11 Assy rotor 1 Double ended spanner 10mm 17mm Replaced by box driver Vice pliers A Tool for protecting empty turning of bolt or abrasion from usi...

Page 13: ...from cover connector and wires connected to the sub PCB 4 Pull the knob encoder to separate it and then remove the 2 fixing screws 5 Separate wire connected to the touch module and 4 hooks 6 Separate...

Page 14: ...ate the water valve housing 2 Remove the 3 fixing screws 3 Remove the wire harness and release the clamp connecting the hose When releasing the clamps take care that you do not tear the hoses Door Ass...

Page 15: ...rt Figure Description Top Cover Assembly Door Switch Common continued 1 Remove the 2 Screws 2 Separate the control Panel assemble 3 Remove the 4 Screws 4 Separate the Back Cover 5 Separate the Pump Wi...

Page 16: ...mbly Door Switch Common continued 6 Separate the Pump Wire Connector 2Points Pump Wire may snap if you separate top cover assembly without step 3 step 6 7 Remove the 4 Screws Door Switch continued 8 S...

Page 17: ...tch 11 Replace the Door switch Top Cover Assembly continued 12 Remove 3 screws from PBA 5 3 1 6 4 2 13 Separate connector Housing 1 Valve Water 4EA 2 Pressure Sensor 1EA 3 Water Jet Key 1EA 4 Door S W...

Page 18: ...over Assembly continued 14 Separate 3 screws from the Earth wire 15 Before separating the hose release the clip When releasing the clip take care that you do not tear the hose 16 Separate the Top Cove...

Page 19: ...e control panel assembly 2 Separate the pressure switch housing 3 Before separating the hose release the clip When releasing the clip take care that you do not tear the hose Drain Pump 1 Separate the...

Page 20: ...e top cover assembly by lifting and all the wires connected to the housing 3 After separating cover top assembly remove the 4 screws fixing the cover tub and separate the hooks 4 Separate the pulsator...

Page 21: ...tion 8 Place the main body so that the front frame faces upward and remove the 4 bolts holding the support saddle with a 10mm wrench When you place the washer on the floor take care that you do not da...

Page 22: ...g and then remove the DDM motor 12 Separate the wire and remove 2 screws holding the drain motor 13 Remove pin link and then separate link drain 14 Remove all screws fixing the clutch assembly and the...

Page 23: ...e terminal is not connected Wire disconnected The warm water and rinse connectors are wrongly connected to each other This occurs if the PCB terminal from the drain hose to the detergent drawer is not...

Page 24: ...ing AC6 The signals between the Inverter PBA and main PBA are not sensed because of communication Check Check The connector connections between the Inverter PBA and main PBA carefully Check for incorr...

Page 25: ...se is clogged and there is an injection Check at a narrow section the water level detection does not work and water is supplied continually Water is supplied continually because of freezing or because...

Page 26: ...Replace the Mems PBA 2 Replace the Main PBA 8CB2 Mems Sensor Could be Faulty 8CA3 Replace MEMS PBA if there is External Mems PBA Replace Main PBA if there is no External Mems PBA 8CB3 8CA4 8CB4 Clutch...

Page 27: ...l sensor frequency 1 Check it after the water level sensor and the connector are connected Checking Part Blue Color Wire orange Color Wire 2 Frequency Approx 26 4 KHz without water Min 25 9KHz Check i...

Page 28: ...ective This may occur due to frozen water Drain Check 5C This may occur when the drain pump is defective Check if there is any alien substance inside the draining pump motor Check the natural drain in...

Page 29: ...k whether the door lock switch unit is inserted Check whether the door lock switch unit is damaged Check the disconnection of the wire If the door lock switch unit is defective replace it If the main...

Page 30: ...e laundry load is unbalanced M ake sure to check if there is any laundry present that absorbs a lot of water even if its volume is small and explain the problem comprehensively if necessary Mems PBA D...

Page 31: ...sensor Main PCB fault Freezing in the winter season IPM temperature is abnormally high Check the connections for the washing heater temperature sensor connector If the washing heater temperature senso...

Page 32: ...The switch for the Washing Heater power Heater Model Only 3 RY102 Main Relay Be Supplied PBA power when the Power button is pressed AC Neutral 4 CN901 Motor Output MOTOR 3 phase Output 5 CN801 Sensor...

Page 33: ...lutch 8 Drain Pump 9 NC 10 NC CN901 1 MOTOR_W 2 MOTOR_V 3 MOTOR_U CN902 For Writing 1 5V 2 RXD_INVERTER 3 TXD_INVERTER 4 GND 5 BOOT_INVERTER CN801 1 12V 2 GND 3 RX from SUB 4 NC 5 TX to SUB 6 Water Te...

Page 34: ...902 For Writing 1 5V 2 RxD _Inverter 3 TxD_Inverter 4 Gnd 5 Boot_Inverter CN801 1 12V 2 GND 3 Rx From Sub PBA 4 NC 5 Tx to Sub 6 Water Temp 7 Sub Reset 8 NC 9 5V 10 ADW Key Input 11 Gnd 12 Gnd 13 12V...

Page 35: ...zzer Circuit Be generated sound when Key is pressed or the encoder is operated 2 CN6 Touch Writing Touch MICOM Writing 3 CN5 Writing Display MICOM Writing 4 CN3 Connect Main PBA Receives power from th...

Page 36: ...s authorization CN6 For Writing 1 GND 2 TOUCH_RESET 3 SWD_CLK 4 SWD_IO 5 5V CN5 For Writing 1 5V 2 RXD 3 TXD 4 GND 5 BOOT CN3 1 NC 2 NC 3 TX to Main 4 RX from Main 5 MCU_RESET 6 TOUCH_RESET 7 GND 8 1...

Page 37: ...GRAM 6 1 WIRING DIAGRAM This Document can not be used without Samsung s authorization REFERENCE INFORMATION BLK BLACK BLU BLUE GRN GREEN GRY GRAY NTR NATURAL ORG ORANGE PNK PINK RED RED SKYBLU SKYBLUE...

Page 38: ...IAGRAM 5 4CU FT HEATER This Document can not be used without Samsung s authorization REFERENCE INFORMATION BLK BLACK BLU BLUE GRN GREEN GRY GRAY NTR NATURAL ORG ORANGE PNK PINK RED RED SKYBLU SKYBLUE...

Page 39: ...e W A 5 0 T 5 3 0 0 A C U S Product type CAN NOT CHANGE Auto Washing machine SAMSUNG s Guide Line Market Claim Capacity 5 4 5 0cu ft Intro Year R Intro Year 2019 T Intro Year 2020 Series Grade Product...

Page 40: ...nual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law 2020 Samsung Electronics Co Ltd All rights reserved P...

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