Samsung DMR78AHS/XAC Service Manual
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Samsung DMR78AHS/XAC Service Manual

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SERVICE
DISHWASHER
Refer to the service manual in the GSPN (see the rear cover) for the more information.
DISHWASHER
Model Name :DMR78 Series
DMR78AHS/XAA
Model Code :
DMR78AHB/XAA
DMR78AHW/XAA DMR78AHW/XAC
DMR77LHS/XAA
DMR77LHB/XAA
DMR77LHW/XAA DMR77LHW/XAC
DMR57LFS/XAA
DMR57LFB/XAA
DMR57LFW/XAA
1.
Safety Instructions
2.
Features and Specifications
3.
Disassembly and
Reassembly
4.
Troubleshooting
5.
Exploded Views and
Parts List
6.
PCB Diagram
7.
Wiring Diagram
8.
Schematic Diagram
9.
Reference
DMR77 Series
DMR57 Series
DMR78AHS/XAC
DMR78AHB/XAC
DMR77LHS/XAC
DMR77LHB/XAC
DMR57LFS/XAC
DMR57LFB/XAC
DMR57LFW/XAC
Manual
CONTENTS

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Summary of Contents for Samsung DMR78AHS/XAC

  • Page 1 DISHWASHER Model Name :DMR78 Series DMR77 Series DMR57 Series DMR78AHS/XAA DMR78AHS/XAC Model Code : DMR78AHB/XAA DMR78AHB/XAC DMR78AHW/XAA DMR78AHW/XAC DMR77LHS/XAA DMR77LHS/XAC DMR77LHB/XAA DMR77LHB/XAC DMR77LHW/XAA DMR77LHW/XAC DMR57LFS/XAA DMR57LFS/XAC DMR57LFB/XAA DMR57LFB/XAC DMR57LFW/XAA DMR57LFW/XAC SERVICE Manual DISHWASHER CONTENTS Safety Instructions Features and Specifications Disassembly and...

  • Page 2: Table Of Contents

    Contents The issues of changing......................... 4 1. Safety Instructions .........................1-1 1-1. Safety Instructions for Service Engineers .......................1-1 2. Features and Specifications ....................2-1 2-1. Features .................................2-1 2-2. Specifications ..............................2-2 2-3. Comparing Specifications with Existing Models .....................2-3 2-4. Options Specifications ............................2-5 3. Disassembly and Reassembly ....................3-1 3-1.
  • Page 3 6-9. Detailed Specifications and Descriptions for Connectors (DISPLAY LED - FRONT - DMR77, DMR78 (DD07- 00009A, 9B)) ................................6-8 6-10. Detailed Specifications and Descriptions for Connectors (DISPLAY LED - FRONT - DMR57) ....6-9 7. Wiring Diagram ........................7-1 7-1. Old Wiring Diagram (DMR77/78) ........................7-1 7-2.

  • Page 4: The Issues Of Changing

    The issues of changing Date Contents Add the Model(DMR78) ሪ Change the Service inspection mode entry method. (Page 4-1) 2008. 12. 01 Add the Assy-install kit for SVC parts (Page 2-5) ሪ...

  • Page 5: Safety Instructions

    1. Safety Instructions 1. Safety Instructions 1-1. Safety Instructions for Service Engineers Make sure to observe the following instructions to operate the product correctly and safely and prevent possible ሪ accidents and hazards while servicing. Two types of safety symbols, Warning and Caution, are used in the safety instructions. ሪ...
  • Page 6 1. Safety Instructions While Servicing Check if the power cable is damaged, flattened, cut or otherwise degraded. ࣃ If faulty, replace it immediately. ➢ Failing to do so may result in electric shock or fire. Completely remove any dust or foreign material from the housing, wiring and connection ࣃ...
  • Page 7 1. Safety Instructions Caution Before Servicing Do not sprinkle water onto the dishwasher directly when cleaning it. ࣃ This may result in electric shock or fire, and may shorten the product lifetime. ➢ Do not place any containers with water on the dishwasher. ࣃ...
  • Page 8 1. Safety Instructions After Servicing Check the assembled status of the parts. ࣃ They must be the same as before servicing. ➢ Check the insulation resistance. ࣃ Disconnect the circuit breaker or power cable from the power outlet and measure ➢...

  • Page 9: Features And Specifications

    DMR57 models Efficient noise control technology is used for the quietest ሪ Extremely quiet operation possible operation. Your new Samsung dishwasher will be quieter than ever. Cleaning the filter yourself is a thing of the past! This product ሪ Self-cleaning filter keeps food waste internally while operating, then drains it automatically with the water.

  • Page 10: Specifications

    2. Features and Specifications 2-2. Specifications Wash capacity 14 place settings Type Dishwasher DMR78AHS, DMR78AHB, DMR78AHW Model DMR 77LHS, DMR 77LHB, DMR 77LHW DMR 57LFS, DMR 57LFB, DMR 57LFW Power Single-phased alternating current of 60Hz, 15A at 120V Used water pressure 20 ~ 120 psi (140 ~ 830 kPa) Wash type Rotating nozzle spray...

  • Page 11: Comparing Specifications With Existing Models

    2. Features and Specifications 2-3. Comparing Specifications with Existing Models...
  • Page 12 2. Features and Specifications...

  • Page 13: Options Specifications

    2. Features and Specifications 2-4. Options Specifications Photo Item Code Quantity Remarks Bracket-install DD61-00176A Assy-install kit for Top mounting DD94-01002A (Bracket-install + Screw) Screw for side mounting DD81-01266A Provided with the dishwasher DD68-00036A(DMR78) User Manual DD68-00018A(DMR77) DD68-00026A (DMR57) Installation Guide DD68-00027A Elbow Water Supply Line...
  • Page 14 2. Features and Specifications Memo...

  • Page 15: Disassembly And Reassembly

    3. Disassembly and Reassembly 3. Disassembly and Reassembly 3-1. Tools for Removal and Reassembly Tool image Tool Type Remarks Adjustable Wrench ➊ Open-end Wrench 1-7/16” ➋ Vice pliers ➌ Others Common tools for servicing ➍ (screwdriver, nipper, long nose pliers) Screwdriver - Philips, flat, Torx T20 * Preparation for parts replacement 1.

  • Page 16: Standard Disassembly Drawings

    3. Disassembly and Reassembly 3-2. Standard Disassembly Drawings Part Photo Description 1. Place the dishwasher on its back so that you can see the base. Remove the two (2) screws that hold the base and the shutter in place. 2. Remove the leakage sensor connector (white) inside the shutter.
  • Page 17 3. Disassembly and Reassembly Part Photo Description 1. Open the door completely. Remove the upper and lower baskets. Place the baskets you’ve just removed in a safe location so that they do not interfere with the service operations and to prevent them from being damaged.
  • Page 18 3. Disassembly and Reassembly Part Photo Description 7. Remove the two (2) terminals which are inserted into the heater. Do not pull the wire. Remove it by holding the metallic part at the end of the wire. 8. Remove the two (2) holder heaters which are connected to the heater by rotating them Heater counterclockwise.
  • Page 19 3. Disassembly and Reassembly Part Photo Description 1. Place the dishwasher on its back so that you can see the base. Remove the two (2) screws that hold the base and the shutter in place. 2. Remove the leakage sensor connector (white) in the shutter.
  • Page 20 3. Disassembly and Reassembly Part Photo Description 1. Open the door completely. Remove the upper and lower baskets. Place the baskets you’ve just removed in a safe location so that they do not interfere with the service operations and to prevent them from being damaged.
  • Page 21 3. Disassembly and Reassembly Part Photo Description 5. Remove the screws and lift up and remove the cover sump. The cover sump, cover scroll, assy filter mesh, holder nozzle L, and cover heater will be removed together. Caution Place the removed parts in a safe location to prevent them from being damaged.
  • Page 22 3. Disassembly and Reassembly Part Photo Description 10. Place the dishwasher on its back so that you can see the base. Remove the two (2) screws that hold the base and the shutter in place. 11. Remove the leakage sensor connector (white) inside the shutter.
  • Page 23 3. Disassembly and Reassembly Part Photo Description 1. Place the dishwasher on its back so that you can see the base. Remove the two (2) screws that hold the base and the shutter in place. 2. Remove the leakage sensor connector (white) inside the shutter.
  • Page 24 3. Disassembly and Reassembly Part Photo Description 1. Place the dishwasher on its back so that you can see the base. Remove the two (2) screws that hold the base and the shutter in place. Leakage Sensor 2. Remove the leakage sensor connector (white) inside the shutter.
  • Page 25 3. Disassembly and Reassembly Part Photo Description 1. Open the door completely. Remove the twelve (12) screws holding the tub front, fame front, and panel front in place. Caution Before removing the screws, place a cushioned mat on the floor to prevent the handle and frame front from being scratched.
  • Page 26 3. Disassembly and Reassembly Part Photo Description 4. Remove the two (2) screws holding the panel control and the display LED in place. 5. Remove the two (2) display LED connectors. Now, you can remove the seal guide LED and the display LED.
  • Page 27 3. Disassembly and Reassembly Part Photo Description 1. Open the door completely. Remove the twelve (12) screws holding the tub front, fame front, and panel front in place. Caution Before removing the screws, place a cushioned mat on the floor to prevent the handle and frame front from being scratched.
  • Page 28 3. Disassembly and Reassembly Part Photo Description 5. Remove the four (4) screws holding the PCB assy and panel control in place. Remove all the connectors connected to the PCB assy. Panel Control (DMR57 series) 6. You can remove the PCB assy. 3-14...
  • Page 29 3. Disassembly and Reassembly Part Photo Description 1. Open the door completely. Remove the twelve (12) screws holding the tub front, fame front, and panel front in place. Caution Before removing the screws, place a cushioned mat on the floor to prevent the handle and frame front from being scratched.
  • Page 30 3. Disassembly and Reassembly Part Photo Description 1. Open the door completely. Remove the twelve (12) screws holding the tub front, fame front, and panel front in place. Caution Before removing the screws, place a cushioned mat on the floor to prevent the handle and frame front from being scratched.
  • Page 31 3. Disassembly and Reassembly Part Photo Description 4. Remove the cover fan by rotating it counterclockwise. Use a jig. If you have no jig, use a tool such as a pair of long nose pliers. Remove it carefully so that the part is not damaged.
  • Page 32 3. Disassembly and Reassembly Part Photo Description 1. Remove the (2) screws of the L frame. 2. Remove the L frame. Caution Make sure to wear gloves when removing the L frame. Be careful as the steel plate may harm you. 3.
  • Page 33 3. Disassembly and Reassembly Part Photo Description 6. Separate the case sensor assy into the case sensor and the cover sensor assy. Be careful to avoid breaking them, because they are connected with a hook. 7. Remove the pole sensor from the cover sensor assy. Case Sensor 8.
  • Page 34 3. Disassembly and Reassembly Part Photo Description 1. Place the dishwasher on its back and remove two (2) screws on both sides of the cover front lower. Remove the cover front lower. 2. Remove the water supply line (and elbow) Caution Make sure to close the faucet before removing the water supply line.
  • Page 35 3. Disassembly and Reassembly Part Photo Description 7. First, case sensor and inlet valve should be removed, then you can remove Flow meter. Inlet Valve & Flow Meter 8. Pull the flow meter out of it’s hook. And then separate both hose clamps. 3-21...
  • Page 36 3. Disassembly and Reassembly Part Photo Description 1. Unscrew the screws (2 Screws) connecting the Frame R. 2. When you separate the Frame R, you can check the Fuse & Relay. 3. Pull out Fuse case that be fixed on hook of Base. Relay &...

  • Page 37: Checkpoints After Finishing A Service

    3. Disassembly and Reassembly 3-3. Checkpoints after Finishing a Service 1 Check the safety device Check the operation of the door lock switch. Make sure that it is locked while the dishwasher is running and that it is unlocked when the dishwasher stops. 2.
  • Page 38 3. Disassembly and Reassembly Memo 3-24...

  • Page 39: Troubleshooting

    4. Troubleshooting 4. Troubleshooting 4-1. Changed Components DMR77/78 MDS-DMR7-00 DD92-00008A DD07-00008A, 8B DD07-00009A, 9B Old - PBA New - PBA DMR57 MDS-DMR5-00 DE92-02130B New - PBA Old - PBA...

  • Page 40: Service Inspection Mode

    4. Troubleshooting 4-2. Service Inspection Mode - Press the Delay Start + Normal + Power keys at the same time for two seconds to enter Service Inspection Mode. - “ALL” is displayed for the first three (3) seconds and then “t1” is displayed. - You can change the mode by pressing the Normal key.
  • Page 41 4. Troubleshooting Error type Error mode Checking Method Corrective actions 1. Check whether the faucet is open. - Open the faucet. - Close the faucet and turn off the power. Wait until the water supply 2. Check whether the water supply has been cut off. resumes.
  • Page 42 4. Troubleshooting Error type Error mode Checking Method Corrective actions - Adjust the hot water supply so that the temperate of the supplied water is less 1. Check the hot water connections for the Inlet Valve. than 176˚F (80˚C) Water supply error 2.
  • Page 43 4. Troubleshooting Error type Error mode Checking Method Corrective actions - Reconnect the Low Level Sensor connectors. 1. Check the connections for the Low Level Sensor connectors. 2. Check the operation of the Low Level Sensor. Use service inspection mode t6. ➢...
  • Page 44 4. Troubleshooting Error type Error mode Checking Method Corrective actions 1. Check the connections of the Heater connectors. - Reconnect the Heater connectors. - Faulty: Replace the Heater. 2. Check the resistance between both ends of the Heater. : Check the resistance between both ends of the Heater directly, or check the resistance between the red wire of the Heater Relay and the amber and yellow wires of the Power Relay, respectively.
  • Page 45 4. Troubleshooting Error type Error mode Checking Method Corrective actions 1. Check the operation of the Thermistor. - See the “tE1 Error”. Heater error 2. Check the Heater Relay. - See the “HE Error”. Check whether there is any trace of water leakage in the shutter. Water leakage - Faulty: Check the leakage location.
  • Page 46 4. Troubleshooting Error type Error mode Checking Method Corrective actions 5. Remove the Distributor Motor and check the operation of the motor. - Faulty: Replace the Distributor Motor. (Use t8 service inspection mode .) Normal: The motor rotates normally. ➢ - Faulty: Replace the Micro Switch for sensing positions.
  • Page 47 4. Troubleshooting Error type Error mode Checking Method Corrective actions - Clean the Hose-Sensor and the Case Sensor. 4. Check whether there is any trace of water leakage on the top of the Case Sensor. Overflow error - Faulty: Replace the Main PBA assy. - Nomral: Replace the Flow Meter.
  • Page 48 4. Troubleshooting Error type Error mode Checking Method Corrective actions 1. Check the connections for the Thermistor - Reconnect the Thermistor connector. connector. 2. Check whether the Thermistor is operating normally. - Measure the voltage between both ends of the Thermistor.
  • Page 49 4. Troubleshooting Error type Error mode Checking Method Corrective actions 1. Check the connections for the power plug. - Reconnect the power plug. 2. Check the voltage of the power outlet. - Connect to a 120V power source. Nomral: AC 120V ➢...
  • Page 50 4. Troubleshooting Error type Error mode Checking Method Corrective actions 1. Check the connections for the Display LED - Reconnect the connectors for Display LED. connector part. - Faulty: Replace the Display LED. 2-1. Check the Display LED. (the top display of DMR77) - Check the number of the part that operates abnormally.
  • Page 51 4. Troubleshooting Error type Error mode Checking Method Corrective actions - Faulty: Replace the Display LED. 2-3. Check the display LED. (the front display of DMR57) - Check the number of the part that operates abnormally. Check the LED on that abnormal point by inputting 5V to the S part through a 300Ω...
  • Page 52 4. Troubleshooting Error type Error mode Checking Method Corrective actions 1. Check the wire connections for the Fan Motor. - Reconnect the Fan Motor connectors. - Faulty: Replace the Fan Motor assy. 2. Check the resistance of the Fan Motor coil. (Remove the connector before measuring.) Normal: Approx.
  • Page 53 4. Troubleshooting 4-15...
  • Page 54 4. Troubleshooting Error type Error mode Checking Method Corrective actions 1. Check the connections for the Circulation Motor - Reconnect the Circulation Motor connector. connector. - Reconnect the Startup Condenser connector of the Circulation Motor. 2. Check the connections for the Startup Condenser connector of the Circulation Motor.
  • Page 55 4. Troubleshooting Error type Error mode Checking Method Corrective actions - Faulty: Replace the Main PBA assy. 4. Check the operation of the Circulation Motor Relay: - Normal: Replace the Circulation Motor. Check the operating voltage between the white wire New PBA of the CN1 connector and the red wire of the CN14 connector on the Main PBA.
  • Page 56 4. Troubleshooting Error type Error mode Checking Method Corrective actions 1. Check the connections for the Door Sensing Switch - Reconnect the Door Sensing Switch connector. : Check the blue wire and the switch connected to the blue wire. Normal: 4.5 to 5.5V (when the door is open) ➢...
  • Page 57 4. Troubleshooting Error type Error mode Checking Method Corrective actions - Reconnect the Power Relay. 1. Check the connections for the Power Relay connector: Heater Relay Terminal : Start the cycle by pressing the Power key. (Black wire + Black wire) Then measure the operating voltage between the black wires of the Heater Relay, and the operating Power Relay Terminal...
  • Page 58 4. Troubleshooting Error Error type Checking Method Corrective actions mode 3. Check the driving signals for the power relay : Measure the voltage between pin 6 (amber) and pin 1 (black) of the CN7 connector on the main PBA. When the door is open or before the cycle starts. ➢...
  • Page 59 4. Troubleshooting Memo 4-21...

  • Page 60: Exploded Views And Parts List

    Type 1: ●●●●-●●●●●● ex) 0204-000418 FREON Type 2: ■■●●-●●●●●■ ex) DD96-01390A ASSY-CONTROL Type 1: Enterprise-wide parts ሪ Type 1 materials can be used for all Samsung Electronics products. (Most electrical parts belong to this type.) Type 2: Division-wide parts (DD** - Dishwasher) ሪ...

  • Page 61: Main (Dmr77, Dmr78)

    5. Exploded Views and Parts List 5-1. MAIN (DMR77, DMR78)
  • Page 62 5. Exploded Views and Parts List DMR77***, DMR78*** ► MODEL CODE: Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) SVC_ Code No. Description Specification QTY SA/SNA Remark Code 5.1-0 DMR77LHS_XAA 5.1-0 DMR78AHS_ 5.1-1 DD97-00108A ASSY-CASE DM1477,R-PJT P143 DD97-00110A ASSY-BASE DM1477,R-PJT F219 DD97-00103A...

  • Page 63: Assy-Door (Dmr77, Dmr78)

    5. Exploded Views and Parts List 5-2. ASSY-DOOR (DMR77, DMR78)
  • Page 64 5. Exploded Views and Parts List DMR77***, DMR78*** ► MODEL CODE: Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) SVC_ Code No. Description Specification Remark Code F110 DD63-00066A CUSHION-DUCT(L) DM1477,PU-FORM,-,-,-,-,R F200 DD63-00059A ABSORBER- DM1477,FELT,T10,W5 SOUND(FRONT) F085 DD61-00203A BRACKET-COVER FAN DM1477,STS304,T0.5,-,- F075 DD61-00205A...

  • Page 65: Assy-Tub (Dmr77, Dmr78)

    5. Exploded Views and Parts List 5-3. ASSY-TUB (DMR77, DMR78)
  • Page 66 5. Exploded Views and Parts List DMR77***, DMR78*** ► MODEL CODE: Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) SVC_ Code No. Description Specification QTY SA/SNA Remark Code F121 DD97-00114A ASSY-SUPPORT LINK(R) DM1477,R-PJT F120 DD97-00115A ASSY-SUPPORT LINK(L) DM1477,R-PJT P218 DD61-00176A BRACKET-INSTALL DM1477,GI,T0.8,-,-,-,R-P...

  • Page 67: Assy-Base (Dmr77, Dmr78)

    5. Exploded Views and Parts List 5-4. ASSY-BASE (DMR77, DMR78)
  • Page 68 5. Exploded Views and Parts List DMR77***, DMR78*** ► MODEL CODE: Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) SVC_ Code No. Description Specification Remark Code F091 DD97-00130A ASSY-SENSOR LEAK DM1477,R-PJT F088 DD97-00131A ASSY-SENSOR LEVEL DM1477,R-PJT F103 DD64-00055A SHUTTER DM1477,PP,-,-,-,WHT,R-PJT P143 DD97-00110A...

  • Page 69: Assy-Sump (Dmr77, Dmr78)

    5. Exploded Views and Parts List 5-5. ASSY-SUMP (DMR77, DMR78) F026 F025 F063 F011 F205 F176 F210 F186 F135 F208 F040 F206 F207 F061 F133 F178 F180 A040 F137 A007 S0021 M117 F029 M049 A009 5-10...
  • Page 70 5. Exploded Views and Parts List DMR77***, DMR78*** ► MODEL CODE: Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) SVC_ Code No. Description Specification QTY SA/SNA Remark Code F063 DD97-00133A ASSY-FILTER MESH DM1477,R-PJT F135 DD97-00136A ASSY-IMPELLER DM1477,R-PJT F210 DD97-00134A ASSY-COVER SUMP DM1477,R-PJT F209...

  • Page 71: Assy-Case (Dmr77, Dmr78)

    5. Exploded Views and Parts List 5-6. ASSY-CASE (DMR77, DMR78) 5-12...
  • Page 72 5. Exploded Views and Parts List DMR77***, DMR78*** ► MODEL CODE: Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) SVC_ Code No. Description Specification QTY SA/SNA Remark Code 5.6-0 DD97-00108A ASSY-CASE DM1477,R-PJT F192 DD97-00121A ASSY-BRACKET DM1477,R-PJT ADJUSTER(L) F193 DD97-00122A ASSY-BRACKET DM1477,R-PJT ADJUSTER(R)

  • Page 73: Main (Dmr57)

    5. Exploded Views and Parts List 5-7. MAIN (DMR57) 5-14...
  • Page 74 5. Exploded Views and Parts List ► MODEL CODE: DMR57LF* Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) SVC_ Code No. Description Specification QTY SA/SNA Remark Code 5.7-0 DMR57LFS_XAA 5.7-1 DD97-00109A ASSY-CASE DM1475,R-PJT/BETTER P143 DD97-00138A ASSY-BASE DM1475,R-PJT/BETTER D049 DD97-00112A ASSY-DOOR DM1475,R-PJT/BETTER DMR57LFS...

  • Page 75: Assy-Door (Dmr57)

    5. Exploded Views and Parts List 5-8. ASSY-DOOR (DMR57) 5-16...
  • Page 76 5. Exploded Views and Parts List ► MODEL CODE: DMR57LF* Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) SVC_ Code No. Description Specification Code F110 DD63-00066A CUSHION-DUCT(L) DM1477,PU-FORM,-,-,-,-,R F014 DD63-00092A ABSORBER- DM1475,FELT,T10,W5 SOUND(FRONT) F085 DD61-00203A BRACKET-COVER FAN DM1477,STS304,T0.5,-,- F075 DD61-00205A BRACKET-DOOR LINK DM1477,GI,T0.8,-,-,-,R...

  • Page 77: Assy-Tub (Dmr57)

    5. Exploded Views and Parts List 5-9. ASSY-TUB (DMR57) 5-18...
  • Page 78 5. Exploded Views and Parts List ► MODEL CODE: DMR57LF* Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) SVC_ Code No. Description Specification QTY SA/SNA Remark Code F121 DD97-00114A ASSY-SUPPORT LINK(R) DM1477,R-PJT F120 DD97-00115A ASSY-SUPPORT LINK(L) DM1477,R-PJT P218 DD61-00176A BRACKET-INSTALL DM1477,GI,T0.8,-,-,-,R-P F122...

  • Page 79: Assy-Base (Dmr57)

    5. Exploded Views and Parts List 5-10. ASSY-BASE (DMR57) 5-20...
  • Page 80 5. Exploded Views and Parts List ► MODEL CODE: DMR57LF* Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) SVC_ Code No. Description Specification Remark Code F091 DD97-00130A ASSY-SENSOR LEAK DM1477,R-PJT F088 DD97-00131A ASSY-SENSOR LEVEL DM1477,R-PJT F103 DD64-00055A SHUTTER DM1477,PP,-,-,-,WHT,R-PJT P143 DD97-00138A ASSY-BASE...

  • Page 81: Assy-Sump (Dmr57)

    5. Exploded Views and Parts List 5-11. ASSY-SUMP (DMR57) F025 F026 F063 F011 F080 F176 F013 F186 F135 F040 F102 F061 F133 F178 F180 A040 A007 F137 M117 A009 5-22...
  • Page 82 5. Exploded Views and Parts List ► MODEL CODE: DMR57LF* Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) SVC_ Code No. Description Specification Remark Code F063 DD97-00133A ASSY-FILTER MESH DM1477,R-PJT F135 DD97-00136A ASSY-IMPELLER DM1477,R-PJT F013 DD97-00134B ASSY-COVER SUMP DM1475,R-PJT/BETTER F102 DD61-00240B CASE-SCROLL...

  • Page 83: Assy-Case (Dmr57)

    5. Exploded Views and Parts List 5-12. ASSY-CASE (DMR57) 5-24...
  • Page 84 5. Exploded Views and Parts List ► MODEL CODE: DMR57LF* Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) SVC_ Code No. Description Specification QTY SA/SNA Remark Code 5.12-0 DD97-00109A ASSY-CASE DM1475,R-PJT/BETTER F163 DD97-00125A ASSY-CASE SPOON DM1477,R-PJT A043 DD61-00213A BASKET-UPPER DM1475,HSWR,-,-,-,NYLON-COA F041 DD67-00041A...
  • Page 85 5. Exploded Views and Parts List 5-26...

  • Page 86: Pcb Diagram

    6. PCB Diagram 6. PCB Diagram 6-1. Old PBA - Main PCB Location Description Location Description Location Description PBA Power (120V, AC1) Drain Pump Driving Relay Display LED Driving Connector (only DMR77) PBA Power (120V, AC2) Touch-Key, LED Driving, 5V, DC GND Inlet Valve Driving Relay Touch-Key, LED Driving, 5V, DC GND (only DMR77) 12V, 5V, DC GND, Power Relay Driver, Heater Relay Driver, Half...

  • Page 87: New Pba- Main Pcb

    6. PCB Diagram 6-2. New PBA- Main PCB Location Description Location Description Location Description Display LED Driving Connector (only DMR77, DMR78) PBA Power (120V) Inlet Valve Driving Relay Touch-Key, LED Driving, 5V, DC GND (only DMR77, DMR78) Circulation (Wash) Motor Driving Relay 12V, DC GND, Power Relay Driver, Heater Relay Driver, Half Load Sensor, Turbidity Sensor, Rinse Aid Sensor Touch-Key, LED Driving, 5V, DC GND...

  • Page 88: 6-3.Old Pba - Detailed Specifications And Descriptions For Connectors And Relay Terminals (Main Pba)

    6. PCB Diagram 6-3.Old PBA - Detailed Specifications and Descriptions for Connectors and Relay Terminals (MAIN PBA) CN2 (LED_Common) ሪ 1. SEG1 CN3: NC ሪ 2. SEG2 3. SEG3 ሪ 4. NC 1. PBA Power (120V, AC1) 5. NC 2. NC 6.

  • Page 89: New Pba- Detailed Specifications And Descriptions For Connectors And Relay Terminals (Main Pba)

    6. PCB Diagram 6-4. New PBA- Detailed Specifications and Descriptions for Connectors and Relay Terminals (MAIN PBA) CN802 (LED_Common) ሪ 1. SEG1 2. SEG2 CN101 3. SEG3 ሪ 3.PBA Power 4. NC (120V, Black Wire) 5. NC 2. NC 6. NC 1.

  • Page 90: Detailed Specifications And Descriptions For Connectors (Touch 7Key - Dmr77, Dmr78)

    6. PCB Diagram 6-5. Detailed Specifications and Descriptions for Connectors (TOUCH 7KEY - DMR77, DMR78) PIN DESCRIPTIONS PIN DESCRIPTIONS ሪ ሪ 1. DC 5V 1. KEY1 2. DC GND 2. KEY2 3. SEG1 3. KEY3 4. SEG2 4. KEY4 5. SEG3 5.

  • Page 91: Detailed Specifications And Descriptions For Connectors (Touch 7Key - Dmr57)

    6. PCB Diagram 6-6. Detailed Specifications and Descriptions for Connectors (TOUCH 7KEY - DMR57) PIN DESCRIPTIONS PIN DESCRIPTIONS ሪ ሪ 1. DC 5V 4. SEG2 1. KEY1 5. KEY_Signal_1 2. DC GND 5. SEG3 2. KEY2 6. KEY_Signal_2 3. SEG1 6.

  • Page 92: Detailed Specifications And Descriptions For Connectors (Touch 3Key - Dmr77,Dmr78)

    6. PCB Diagram 6-7. Detailed Specifications and Descriptions for Connectors (TOUCH 3KEY - DMR77,DMR78) Half Load Sanitize Delay Start PIN DESCRIPTIONS ሪ 1. KEY6 2. KEY7 3. KEY_Signal_1 4. KEY_Signal_2 5. DC 5V 6. DC GND...

  • Page 93: Detailed Specifications And Descriptions For Connectors (Display Led - Top - Dmr77, Dmr78 (Dd07-00008A, 8B))

    6. PCB Diagram 6-8. Detailed Specifications and Descriptions for Connectors (DISPLAY LED - TOP - DMR77, DMR78 (DD07-00008A, 8B)) PIN DESCRIPTIONS PIN DESCRIPTIONS ሪ ሪ 1. SEG1 1. DIGIT1 2. SEG2 2. DIGIT2 3. SEG3 3. DIGIT3 4. SEG4 4. DIGIT4 5.

  • Page 94: Detailed Specifications And Descriptions For Connectors (Display Led - Front - Dmr57)

    6. PCB Diagram 6-10. Detailed Specifications and Descriptions for Connectors (DISPLAY LED - FRONT - DMR57) PIN DESCRIPTIONS PIN DESCRIPTIONS ሪ ሪ 1. SEG1 5. SEG5 1. DIGIT1 4. DIGIT4 2. SEG2 6. SEG6 2. DIGIT2 5. DIGIT5 3. SEG3 7.
  • Page 95 6. PCB Diagram Memo 6-10...

  • Page 96: Wiring Diagram

    7. Wiring Diagram 7. Wiring Diagram 7-1. Old Wiring Diagram (DMR77/78) ■ Reference Information Abbreviated word Meaning GRAY ORANGE VIOLET PINK YELLOW BROWN WHITE BLACK SKY BLUE BLUE YELLOW / GREEN COLORLESS...

  • Page 97: Old Wiring Diagram (Dmr57)

    7. Wiring Diagram 7-2. Old Wiring Diagram (DMR57) ■ Reference Information Abbreviated word Meaning GRAY ORANGE VIOLET PINK YELLOW BROWN WHITE BLACK SKY BLUE BLUE YELLOW / GREEN COLORLESS...

  • Page 98: New Pba - Wiring Diagram (Dmr78, Dmr77 , Dmr57)

    7. Wiring Diagram 7-3. New PBA - Wiring Diagram (DMR78, DMR77 , DMR57) ■ Reference Information Abbreviated word Meaning GRAY ORANGE VIOLET PINK YELLOW BROWN WHITE BLACK SKY BLUE BLUE YELLOW / GREEN COLORLESS...

  • Page 99: Schematic Diagram

    8. Schematic Diagram 8. Schematic Diagram 8-1. MAIN CONTROL (DMR78, DMR77 , DMR57)  This Document can not be used without Samsung’s authorization. POWER SUPPLY On board DISPLAY CONTROL writing R501 S1-1 R502 AVDD S2-1 R503 +12V VAREF S3-1 L101...

  • Page 100: Touch Key (7Key - Dmr77, Dmr78)

    8. Schematic D iagram 8-3. TOUCH KEY (7KEY - DMR77, DMR78)  This Document can not be used without Samsung’s authorization.

  • Page 101: Touch Key (3Key - Dmr77, Dmr78)

    8. Schematic Diagram 8-4. TOUCH KEY (3KEY - DMR77, DMR78)  This Document can not be used without Samsung’s authorization.

  • Page 102: Touch Key (7Key - Dmr57)

    8. Schematic D iagram 8-5. TOUCH KEY (7KEY - DMR57)  This Document can not be used without Samsung’s authorization.
  • Page 103 8. Schematic Diagram Memo...

  • Page 104: Reference

    9. Reference 9. Reference 9-1. Model Number Naming Rules A: ALL 8: 2008...

  • Page 105: Terminology

    9. Reference 9-2. Terminology 1. Circulation Motor A motor that sucks the water remaining on the floor of the dishwasher and injects water using high pressure ➢ through the internal water passages to the top, middle and lower nozzles. 2. Drain Pump The pump that drains the polluted water from the dishwasher generated while the dishwasher is running.
  • Page 106 Mideast & Africa http://mea.samsungportal.com © 2008 Samsung Electronics Co.,Ltd. This Service Manual is a property of Samsung Electronics Co.,Ltd. All rights reserved. Any unauthorized use of Manual can be punished under applicable Printed in Korea International and/or domestic law.

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