Panasonic SD-257WST Service Manual Download Page 1

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OrderNo.PTW1003508CE

Automatic Bread Maker

Model No.

SD-257WST

Chassis

Product Color

White

Destination

Australia

TABLE OF CONTENTS

PAGE

1 Safety Precautions

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2 Specifications

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3 Location of Controls and Components

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4 Operating Instructions

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5 Test Mode

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6 Troubleshooting Guide

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7 Disassembly and Assembly Instructions

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8 Wiring Connection Diagram

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9 Exploded View and Replacement Parts List

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Summary of Contents for SD-257WST

Page 1: ...T Chassis Product Color White Destination Australia TABLE OF CONTENTS PAGE PAGE 1 Safety Precautions 2 2 Specifications 3 3 Location of Controls and Components 4 4 Operating Instructions 6 5 Test Mode 13 6 Troubleshooting Guide 15 7 Disassembly and Assembly Instructions 17 8 Wiring Connection Diagram 30 9 Exploded View and Replacement Parts List 32 ...

Page 2: ...2 1 Safety Precautions ...

Page 3: ...for a loaf max 550g min 400g Strong flour for a dough max 600g min 250g Yeast max 8g min 0 75g Capacity of raisin nut dispenser max 150g dried fruit nuts Timer Digital timer up to 13 hours Dimensions H W D approx 37 0cm 28 0cm 33 0cm Weight approx 6 8kg Accessories Measuring cup Measuring spoon ...

Page 4: ...4 3 Location of Controls and Components ...

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Page 6: ...6 4 Operating Instructions ...

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Page 13: ...om electric power breakdown mode In case of a short breakdown the device is restored to the previous condition and continues to cook but delays cook ing time during the breakdown In case of a longer breakdown the entire mode is canceled and the device returns to the initial mode after it is restored Indication on LCD No indication during electric power breakdown POWER ALERT is displayed during a s...

Page 14: ...perature of more than 40 deg C the buzzer sounds the LED goes on and off and the other load goes off in this mode The high temperature alarm mode does not occur at the BAKE ONLY menu rebaking setting Behaviour of restoration from high temperature alarm mode When the unit temperature is less than 40 deg C and more than 10 seconds passes after the high temperature alarm mode has begun the buzzer sou...

Page 15: ...ations do not appear on the LCD replace P C Boards A and or B Check the device condition in this test mode after replacing the P C Board s 6 1 2 Solenoid motor operation test Volume 1 mode Operation procedure 1 Press the Crust key Phenomena LCD indication RAISIN BUTTER displayed Behaviour of device The solenoid runs for 1 second and stops for 1 second Then the motor runs and stops in the manner of...

Page 16: ... POWER ALERT displayed Behaviour of device The device supplies electric power to the heater after 1 second and the power is off when the sen sor temperature reaches 165 deg C Restoration Pressing Stop Start key the device returns to the main body initial test mode Judgement Remedy Replace the sensor and or P C Board B if the power is not off when the sensor temperature reaches 165 deg C Replace th...

Page 17: ... the hinge part 2 Push the middle lid inside toward arrow symbol direction 1 or 2 slide the fixing spring out from the hook part and remove the middle lid 3 Remove the rubber seal from the middle lid 4 If the fixing springs are dislocated attach them to the dis penser cover Tips on assembly Check the setting direction of the middle lid and force the middle lid straight into the fixing spring With ...

Page 18: ...18 7 2 Top lid assy 1 Detach the hinge screw 2 Slide the top lid assy and remove it from its hinge part ...

Page 19: ...assy and the inner lid The inner lid is held with the top lid assy by 8 locks 5 Remove dispenser B assy 6 Remove the screw and detach the lid lever B spring B and washer A 7 Remove 4 screws and detach the steam vent and lid cover 8 Remove the magnet and magnet plate A Tips on assembly Refer to the illustration for washer A directions ...

Page 20: ...are holes with top screw driver 3 Remove the control panel unit from the locks on the body while pulling and pushing the control panel unit in the direction of the arrow 1 and 2 4 Disconnect the connector of the solenoid B from the P C Board B 5 Disconnect the flat cable from P C Board B Tips on assembly Connect the flat cable to P C Board B in the direction illus trated ...

Page 21: ...21 7 4 Solenoid assy B 1 Remove the screw and detach the solenoid assy B sole noid fixing plate and spring A ...

Page 22: ...22 7 5 P C Board A 1 Remove 2 screws and detach P C B cover 2 Disconnect the flat cable and lead wire from P C Board A 3 Remove the P C Board A from the P C B cover ...

Page 23: ...2 screws and detach the cord support 3 Remove the glass tape and disconnect the connector for the power cord assy 4 Disconnect the connector for Grand wire A assy 5 Pull the power cord assy out while holding the cord bush ing fixed on the cord support with a long nose plier 6 Pull the body out upward ...

Page 24: ...24 7 7 Upper frame 1 Remove 3 screws 2 Remove the upper frame and the device body in order to disconnect the locks ...

Page 25: ... 2 Disconnect 3 faston terminals and 2 connectors from P C Board B assy 3 Remove 2 screws and detach P C B holder 4 Remove the P C Board B assy from the P C B holder The P C Board B assy is held to the P C B holder with 4 locks Remove the P C Board B assy while expanding ...

Page 26: ...e A assy from the heater while holding it with a long nose plier 6 Remove the screw and detach the grand wire A assy from the angle Tips on assembling Insert the thermal fixing plate notch position into the fixing square hole of the heat insulator and screw the thermal fix ing plate on the heat insulator Insert the positioning projection of the angle into the locator hole of the heat insulator and...

Page 27: ...ssy to the heater case unit 7 11 Pulley B connector lower unit and others 1 Remove the belt with sliding it out while rotating pulley B 2 Remove the hexagon nut special fixing pulley B by rotat ing it counterclockwise 3 Remove the round plain washer lock washer and pulley B 4 Remove U clip and pull the connector lower unit out toward the inner side Tips on assembly Position each D cut of the conne...

Page 28: ...se unit from the angle Tips on assembly Set the positioning marks across from each other on the heater case side and on heater case base side 7 13 Heater 1 Take the 3 claws off from the heater insulator at the out side of the heater case unit 2 Remove the screw and hexagon nut fixing heater insula tor A 3 Pull out the heater upward ...

Page 29: ...cross from each other when assembling the mounting shaft assy and the bread pan 7 16 Post assembly confirmation Confirm the insulation resistance insulation proof stress and operation response after reassembling 1 Insulation resistance Upper than 2M ohm at DC500V 2 Insulation proof stress Longer than 1 min at AC1000V 3 Operation response Confirm the device performance in the manner of Test Mode ...

Page 30: ...30 8 Wiring Connection Diagram 8 1 Schematic diagram ...

Page 31: ...31 8 2 Basic wiring diagram ...

Page 32: ...32 9 Exploded View and Replacement Parts List 9 1 PARTS LOCATION ...

Page 33: ... P C Board A assy 1 25 ADT03E147 P C B cover 1 26 ADB03E147 W Upper frame 1 27 ADT11 156 P C B holder lid 1 28 DR41R60 P C Board B assy 1 29 ADT01 156 P C B holder 1 30 ADE03E147 Heat insulator 1 31 ADA17E147 Thermal fuse assy 1 Blowout temp is 142 degrees of centigrades 32 ADP97 143 Lead wire B unit 1 33 ADP50 143 Bind wire A 4 34 ADA22E147 Heater 1 35 ADE09 143 Heater insulater A 1 36 ASD452 108...

Page 34: ... P 5 L XTB4 10BFJ 4 x 10 Binding head taptite screw 3 M XTT4 8FN 4 x 8 Truss head taptite screw 1 N SD938 101AD 5 x 10 Screw R 4 O XWG5E10FJ Round plain washer 1 P SD873 100AZ Hexagon nut special 1 Q DJ14 145 4 x 20 Truss head C tite and washer assemblies screw 4 R XWA4BFJ Spring washer 2 S XTN4 10FFJ 4 x 10 Pan head taptite screw 1 PACKING SPECIFICATIONS ADZ01R160 Carton 1 ADZ02 145 Upper cusion ...

Page 35: ...35 9 3 PACKING INSTRUCTION ...

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