Panasonic NN-ST557M Service Manual
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Panasonic NN-ST557M Service Manual

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Please file and use this manual together with the service manual for Model NN-S553/K593/K573/K543
(ORDER NO. SIMMC0306022C3).
NN-ST557M
NN-ST557W
HPE(Hong Kong)
YPQ(Singapore)
MPQ(Malaysia)
TPE(Thailand, Indonesia)
YTE(Others)
© 2007 Panasonic Home Appliances Microwave
Oven (Shanghai) Co., Ltd. All rights reserved.
Unauthorized copying and distribution is a violation
of law.
ORDER NO.PHAMOS0709042A3
Microwave Oven

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Summary of Contents for Panasonic NN-ST557M

  • Page 1 YTE(Others) Please file and use this manual together with the service manual for Model NN-S553/K593/K573/K543 (ORDER NO. SIMMC0306022C3). © 2007 Panasonic Home Appliances Microwave Oven (Shanghai) Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
  • Page 2 NN-ST557M / NN-ST557W...
  • Page 3 NN-ST557M / NN-ST557W...

  • Page 4: Table Of Contents

    NN-ST557M / NN-ST557W CONTENTS Page Page 1 SCHEMATIC DIAGRAM 3.2. Measurement of microwave output 2 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING 6 4 EXPLODED VIEW AND PARTS LIST 2.1. Check the grounding 4.1. EXPLODED VIEW 2.2. Inverter warnings 4.2. PARTS LIST 2.3.

  • Page 5: Schematic Diagram

    NN-ST557M / NN-ST557W 1 SCHEMATIC DIAGRAM...

  • Page 6: Cautions To Be Observed When Troubleshooting

    NN-ST557M / NN-ST557W 2 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING Unlike many other appliances, the microwave oven is a high voltage, high current device. It is free from danger in ordinary use, though extreme care should be taken during repair.

  • Page 7: Part Replacement

    NN-ST557M / NN-ST557W 2.3. Part replacement. 2.7. Sharp edges When any part or component is to be replaced, always ensure CAUTION that the power cord is removed from the wall outlet. Please use caution when unpacking, installing or moving 2.4.

  • Page 8: Measurements And Adjustments

    NN-ST557M / NN-ST557W 3 MEASUREMENTS AND ADJUSTMENTS 3.1. Adjustment of primary latch 3.2. Measurement of microwave switch, secondary latch switch output and short switch. The output power of the magnetron can be determined by performing IEC standard test procedures. However,due to the 1.

  • Page 9: Exploded View And Parts List

    NN-ST557M / NN-ST557W 4 EXPLODED VIEW AND PARTS LIST 4.1. EXPLODED VIEW...

  • Page 10: Parts List

    NN-ST557M / NN-ST557W 4.2. PARTS LIST NOTE: 1. When ordering replacement part(s), please use part number(s) shown in this part list. Do not use description of the part. 2. Important safety notice: Components identified by mark have special characteristics important for safety.

  • Page 11: Door Assembly

    NN-ST557M / NN-ST557W 4.3. DOOR ASSEMBLY Ref. No. Part No. Part Name & Description Pcs/Set Remarks F30185Q00AP DOOR KEY A F302K5Q00AP DOOR E(U) F30215G10XN DOOR KEY SPRING F30855Q00AP DOOR C F31456V60XP DOOR SCREEN A F302A8U20SXP DOOR A (U) ST557M F302A8U20HXP...

  • Page 12: Escutcheon Base Assembly

    NN-ST557M / NN-ST557W 4.5. ESCUTCHEON BASE ASSEMBLY Ref. No. Part No. Part Name & Description Pcs/Set Remarks F603L8C20HP D.P. CIRCUIT (AU) F630Y8C20SHP MEMBRANE SWITCH(AU) ST557M F630Y8C20HHP MEMBRANE SWITCH(AU) ST557W F800L8C20SHP ESCUTCHEON BASE (U) ST557M F800L8C20HHP ESCUTCHEON BASE (U) ST557W F80728U10SXP...

  • Page 13: Packing And Accessories

    NN-ST557M / NN-ST557W 4.6. PACKING AND ACCESSORIES Ref. No. Part No. Part Name & Description Pcs/Set Remarks F00038C20HP INSTRUCTION MANUAL F01028C20SYP PACKING CASE,PAPER ST557M F01028C20HHP PACKING CASE,PAPER ST557W F01045Q00AP UPPER FILLER F01055Q00AP LOWER FILLER F01068100XN P.E.BAG F01078J00XN DOOR SHEET F06015Q00AP...

  • Page 14: Digital Programmer Circuit

    NN-ST557M / NN-ST557W 5 DIGITAL PROGRAMMER CIRCUIT 5.1. SCHEMATIC DIAGRAM...
  • Page 15 NN-ST557M / NN-ST557W...

  • Page 16: Parts List

    NN-ST557M / NN-ST557W 5.2. PARTS LIST Ref. No. Part No. Part Name & Description Pcs/Set Remarks BZ210 L0DDEA000014 BUZZER 2.0KHz AECETK1V561B AL CHEM CAPACITOR 560µF/35V C13,C16 AECETS1C220B AL CHEM CAPACITOR 22µF/16V CX320 EFOEC8004A4 CERAMIC RESONATOR 8.0MHz DISP110 L5AAAEC00057 DISP1 HOLDER...

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