Panasonic NN-ST686S Service Manual
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Please file and use this manual together with the service manual for Model NN-S560WF (ORDER NO.
SIMMC0006012C3)
NN-ST686S
NN-ST656W
KTE(UAE)
PTE(Iran)
KPQ(Kuwait, Doha, Qatar, Oman, Bahrain, Pakistan)
STM(Saudi Arabia)
© 2006 Panasonic Home Appliances Microwave
Oven (Shanghai) Co., Ltd. All rights reserved.
Unauthorized copying and distribution is a violation
of law.
ORDER NO.PHAMOS0606035A3
Microwave Oven

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Summary of Contents for Panasonic NN-ST686S

  • Page 1 STM(Saudi Arabia) Please file and use this manual together with the service manual for Model NN-S560WF (ORDER NO. SIMMC0006012C3) © 2006 Panasonic Home Appliances Microwave Oven (Shanghai) Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
  • Page 2 NN-ST686S / NN-ST656W...
  • Page 3: Table Of Contents

    NN-ST686S / NN-ST656W CONTENTS Page Page 1 SCHEMATIC DIAGRAM (STM) 4.2. Measurement of microwave output 2 SCHEMATIC DIAGRAM (EXCEPT FOR STM) 5 EXPLODED VIEW AND PARTS LIST 3 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING 6 5.1. EXPLODED VIEW 3.1. Check the grounding 5.2.
  • Page 4: Schematic Diagram (Stm)

    NN-ST686S / NN-ST656W 1 SCHEMATIC DIAGRAM (STM)
  • Page 5: Schematic Diagram (Except For Stm)

    NN-ST686S / NN-ST656W 2 SCHEMATIC DIAGRAM (EXCEPT FOR STM)
  • Page 6: Cautions To Be Observed When Troubleshooting

    NN-ST686S / NN-ST656W 3 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-ST686S / NN-ST656W 3.3. Part replacement. 3.7. 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 3.4.
  • Page 8: Measurements And Adjustments

    NN-ST686S / NN-ST656W 4 MEASUREMENTS AND ADJUSTMENTS 4.1. Adjustment of primary latch 4.2. 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-ST686S / NN-ST656W 5 EXPLODED VIEW AND PARTS LIST 5.1. EXPLODED VIEW...
  • Page 10: Parts List

    NN-ST686S / NN-ST656W 5.2. 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-ST686S / NN-ST656W 5.3. DOOR ASSEMBLY Ref. No. Part No. Part Name & Description Pcs/Set Remarks F3018-1200 DOOR KEY A F301A8F70HQP DOOR A (U) ST656W F302K5L00AP DOOR E (U) F30215G10XN DOOR KEY SPRING F30854T00AP DOOR C F31456V60XP DOOR SCREEN A...
  • Page 12: Escutcheon Base Assembly

    NN-ST686S / NN-ST656W 5.5. ESCUTCHEON BASE ASSEMBLY 5.5.1. NN-ST686S Ref. No. Part No. Part Name & Description Pcs/Set Remarks F603L8F60KT D.P.CIRCUIT (AU) ST686S KTE/PTE F603L8F60KP D.P.CIRCUIT (AU) ST686S KPQ F603L8F60ST D.P.CIRCUIT (AU) ST686S STM F800L5Y70SAP ESCUTCHEON BASE (U) ST686S F80725Y00SAP...
  • Page 13 NN-ST686S / NN-ST656W 5.5.2. NN-ST656W Ref. No. Part No. Part Name & Description Pcs/Set Remarks F603L8F90KT D.P.CIRCUIT (AU) ST656W KTE/PTE F603L8F90KP D.P.CIRCUIT (AU) ST656W KPQ F603L8F90ST D.P.CIRCUIT (AU) ST656W STM F630Y8F90BPT MEMBRANE SWITCH (U) ST656W F80348F70HQP ESCUTCHEON BASE ST656W F80728F70HQP...
  • Page 14: Packing And Accessories

    NN-ST686S / NN-ST656W 5.6. PACKING AND ACCESSORIES Ref. No. Part No. Part Name & Description Pcs/Set Remarks F00038F60KP INSTRUCTION MANUAL ST686S F00038F90KP INSTRUCTION MANUAL ST656W F01028F60SKT PACKING CASE, PAPER ST686S KTE/PTE F01028F60SKP PACKING CASE, PAPER ST686S KPQ/STM F01028F90HKT PACKING CASE, PAPER...
  • Page 15: Digital Programmer Circuit

    NN-ST686S / NN-ST656W 6 DIGITAL PROGRAMMER CIRCUIT 6.1. SCHEMATIC DIAGRAM...
  • Page 16 NN-ST686S / NN-ST656W...
  • Page 17: Parts List

    NN-ST686S / NN-ST656W 6.2. PARTS LIST Ref. No. Part No. Part Name & Description Pcs/Set Remarks BZ210 L0DDEA000014 BUZZER 2.0KHz C222 F1H1H103A220 CHIP CAPACITOR 0.01µF/50V C486 F1H1H103A220 CHIP CAPACITOR 0.01µF/50V (ST686S) C481 F1H1H473A220 CHIP CAPACITOR 0.047µF/50V (ST686S) C11,C223,C350 F1H1E104A030 CHIP CAPACITOR 0.1µF/25V...

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