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National Panasonic NN-S651WF Service Manual

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Service Manual
Specifications:
Models:
Specifications:
Power Source:
Power Requirement:
Output(IEC705-88):
Microwave Frequency:
Timer:
Outside Dimensions:
Oven Cavity Dimensions:
Weight:
NN-S651WF
240V AC Single Phase, 50Hz ................ For KNQ Models
220V AC Single Phase, 50Hz ................ For KKE, RPE, ZPE Models
220V AC Single Phase, 50/60Hz ........... For SNM Models
220V AC Single Phase, 60Hz ................ For RPK Models
1050W
1000W
*2450MHz
*99 min. 99 sec.
*20 " (518mm)(W) x 16 " (407mm)(D) x 11 " (301mm)(H)
*14 " (375mm)(W) x 15 " (386mm)(D) x 8 " (225mm)(H)
*26.5 lbs. (12.0kg)
Output power: IEC705-88 Test Procedure
Specifications subject to change without notice.
MODELS
KKE KNQ SNM ZPE RPE RPK
NN-S651WF
NN-S541WF
NN-S541WF
© 2001 Shanghai Matsushita Microwave
Oven Co.,Ltd
All rights reserved. Unauthorized copying
and distribution is a violation of law.
ORDER NO. SIMMC 0109018C3
E1
Microwave Oven
1150W
1100W

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Summary of Contents for National Panasonic NN-S651WF

  • Page 1 ORDER NO. SIMMC 0109018C3 Service Manual Microwave Oven MODELS KKE KNQ SNM ZPE RPE RPK NN-S651WF NN-S541WF Specifications: Models: NN-S651WF NN-S541WF Specifications: Power Source: 240V AC Single Phase, 50Hz ....For KNQ Models 220V AC Single Phase, 50Hz ....For KKE, RPE, ZPE Models 220V AC Single Phase, 50/60Hz ...

  • Page 2: Table Of Contents

    WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians.

  • Page 3: Inverter Warning

    DANGER OF HIGH VOLTAGE AND HIGH TEMPERATURE (HOT/LIVE) OF THE INVERTER POWER SUPPLY INVERTER WARNING This Inverter board looks like a regular PCB. However, this PCB drives the magnetron tube with extremely high voltage and high current. NEW H.V. IT HAS: 1. Very high voltage and high current circuits. It functions the same as the high voltage transformer and high voltage capacitor in ordinary microwave ovens.

  • Page 4: Feature Chart

    FEATURE CHART MODEL NN-S651WF NN-S541WF FEATURE Five Stage Cooking Inverter Turbo Defrost Auto Reheat Inverter Auto Cook Timer Digital Clock CONTROL PANEL NN-S651WF NN-S541WF 1. Display Windows 8. Auto Cooking Pads 14. Start Pad One tap allows oven to begin functioning. If 2.

  • Page 5: Operation And Digital Programmer Circuit Test Procedure

    OPERATION AND DIGITAL PROGRAMMER CIRCUIT TEST PROCEDURE 1. To Set Clock OPERATION SCROLL DISPLAY OPERATION SCROLL DISPLAY Time of day or colon if set appears 1. Plug the power supply cord into 8. When 2nd stage cooking time has in the display. wall outlet.
  • Page 6 5. Auto Reheat OPERATION SCROLL DISPLAY 1. Press Auto Reheat pad twice for two servings. 2. Press Start pad.Auto Reheat cycle begins time counts down. 3.30 Time of day or colon if set appears in 3.When cooking time has elapsed, Oven beeps 5 times and shuts off.

  • Page 7: Schematic Diagrams

    SCHEMATIC DIAGRAM SCHEMATIC DIAGRAM (EXCEPT ZPE) CAUTION: HIGH VOLTAGE AREA TMERMAL PRIMARY CUTOUT LATCH NOISE FILTER SWITCH AC220V-240V 50/60 Hz 10 A WIRING DIAGRAM V-16G-3C26 (S-4T1) (S-4T8) HIGH VOLTAGE INVERTER - 7 -...
  • Page 8 SCHEMATIC DIAGRAM SCHEMATIC DIAGRAM (ZPE) CAUTION: HIGH VOLTAGE AREA TMERMAL PRIMARY CUTOUT LATCH NOISE FILTER SWITCH AC220V 50Hz 10 A WIRING DIAGRAM V-16G-3C26 (S-4T1) (S-4T8) HIGH VOLTAGE INVERTER - 8 -...

  • Page 9: Description Of Operating Sequence

    DESCRIPTION OF OPERATING SEQUENCE 1. Variable power cooking control Variable Power Cooking The coil of power relay B (RY1) is energized intermittently by the digital ON-OFF TIME OF OUTPUT programmer circuit, when the oven is set at any power selection except POWER RELAY B (RY1) POWER SETTING POWER(%)

  • Page 10: Cautions To Be Observed When Troubleshooting

    CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING Unlike many other appliances, the microwave oven is high-voltage, high WARNING current equipment. Though it is free from danger in ordinary use, extreme Never touch any circuit wiring with your hand nor with an care should be taken during repair.
  • Page 11 6.Confirm after repair (A) After repair or replacement of parts, make sure that the screws of the oven, etc. are neither loose nor missing. Microwaves might leak if screws are not properly tightened. (B) Make sure that all electrical connections are tight before inserting the plug into the wall outlet.

  • Page 12: Disassembly And Parts Replacement Procedure

    DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE 1. Magnetron (A) Discharge the high voltage capacitors, as mentioned and shown on page 11. (B) Remove 1 screw holding air guide c to magnetron. (C) Disconnect 2 high voltage lead wires from magnetron filament terminals. (D) Remove 4 screws holding the magnetron.
  • Page 13 5. Door assembly DOOR (A) Remove door C from door E by carefully pulling outward starting from SCREEN B DOOR A upper right hand corner using a flat blade screwdriver. (B) Separate door E from tabs on door A and remove door A. DOOR (C) Open Door E at the opening angle of approximately 10°...
  • Page 14 8. Inverter Power Supply (U) CAUTIONS WHILE REPLACING INVERTER POWER SUPPLY (U) 1. Make sure to leave the grounding plate in its place. 2. Make sure to securely tighten grounding screw from the bottom of chasis (base). 3. Securely connect 3 lead wire connectors. 4.

  • Page 15: Component Test Procedure

    COMPONENT TEST PROCEDURE 5. Inverter Power Supply (U) CAUTION NEW. H.V. DO NOT try to REPAIR this H.V. Inverter power supply 1. High voltage is present at the high voltage terminal of (U).Replace as whole H.V. Inverter(U) Unit. the High Voltage Inverter (U) including aluminum heat sink during any cook cycle.

  • Page 16: Measurements And Adjustments

    MEASUREMENTS AND ADJUSTMENTS WARNING * For continued protection against radiation hazard, SWITCH replace only with identical replacement parts(For touch m o d e l s P a r t N o . A N E 6 1 4 2 - 1 4 5 0 , T y p e N o . V-16G-3C26-M for Primary latch switch;...

  • Page 17: Troubleshooting Guide

    TROUBLESHOOTING GUIDE CAUTION 1. Check grounding before checking for trouble. 2. Be careful of high voltage circuit. 3. Discharge high voltage capacitor. 4. When checking the continuity of the switches or the high voltage transformer,disconnect one lead wire from these parts and then check continuity with the AC plug removed.
  • Page 18 Oven does not operate and return to plugged in 1. Defective DPC Check tighten screws on escutcheon mode as soon as start pad is pressed. base bracket, D.P.C. board. Loud buzzing noise can be heard. 1. Loose fan and fan motor Turntable motor does not rotate.
  • Page 19 Troubleshooting of Inverter Circuit (U) and Magnetron NEW H.V. This oven is programmed with a self diagnostics failure code system which will help for troubleshooting. H97, H98, and H99 are the provided failure codes to indicate magnetron and inverter circuit problem areas. This section explains failure codes of H97, H98, and H99. First, you must program the DPC by pressing Clock , Time , Start , Micro Power.
  • Page 20 Trouble Related to Digital Programmer Circuit SYMPTOM STEP CHECK RESULT CAUSE/CORRECTIONS No display when oven is first plugged in. Fuse pattern of DPC Normal STEP 2 Oven is dead. Open (NOTE) Shorted Circuit of ZNR, L.V.T., Oven Lamp etc. Replace DPC Low voltage transformer (LVT) Abnormal 0V ➝...

  • Page 21: Exploded View And Parts List

    EXPLODED VIEW AND PARTS LIST - 21 -...

  • Page 22: Parts List

    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. When replacing any of these components, use only manufacture’s specified parts. NOTE “A”...

  • Page 23: Door Assembly

    DOOR ASSEMBLY Pcs/ Ref.No. Part No. Part name & Description Remarks F30184Y30XN DOOR KEY A DOOR A F30014T00HAP DOOR E (U) F302K4T00AP F30214000AP DOOR KEY SPRING F30854T00AP DOOR C F31454T00AP DOOR SCREEN A F31464T00BAP DOOR SCBEEN B WIRING MATERIALS MAGNETRON CAUTION HEAT SINK (HOT/LIVE)

  • Page 24: Escutcheon Base Assembly

    ESCUTCHEON BASE ASSEMBLY Part name & Description Pcs/ Ref.No. Part No. Remarks F603L4T10KK D.P.CIRCUIT F603L4T10KN D.P.CIRCUIT F603L4T10SN D.P.CIRCUIT F603L4T10ZP D.P.CIRCUIT F603L4T80RP D.P.CIRCUIT RPE, RPK F630Y4T10HKK MEMBRANE SWITCH KKE, KNQ, SNM F630Y4T10HZP MEMBRANE SWITCH F630Y4T80HKN MEMBRANE SWITCH RPE, RPK F80344T00HAP ESCUTCHEON BASE AEDDTM4T00AP DISPLAY F66174T00AP...

  • Page 25: Packing And Accesories

    PACKING AND ACCESORIES OVEN WALL TRAY PAD Cut into three parts when packing. FRONT VIEW ROLLER RING(U) Cut into two parts when packing. Pcs/ Ref.No. Part No. Part name & Description Remarks F00034T10KN INSTRUCTION MANUAL KKE, KNQ, SNM F00034T10ZP INSTRUCTION MANUAL INSTRUCTION MANUAL RPE, RPK F00034T80RP...

  • Page 26: Schematic Diagram

    DIGITAL PROGRAMMER CIRCUIT SCHEMATIC DIAGRAM P.C.B. No. JPR1 JPR2 JPR3 JPR4 D26•D27 B603L4T20RP OPEN OPEN OPEN OPEN 1100VEX B603L4T10ZP OPEN OPEN OPEN SHORT 1100VEX 1100VEX OPEN OPEN SHORT OPEN B603L4T10KN OPEN OPEN SHORT SHORT 1100VEX F603L4T10KK F603L4T10SN OPEN SHORT OPEN SHORT 1100VEX - 26 -...
  • Page 27 - 27 -...
  • Page 28 DIGITAL PROGRAMMER CIRCUIT PARTS LIST Pcs/ Ref.No. Part No. Part name & Description Remarks BZ310 AEFB22EP20TL BUZZER 2.0KHz C12, C290, C291, C300, C301 AECU82F104ZK CAPACITOR 0.1µF/25V C330 AECU85C102KK CAPACITOR 0.001µF/50V C340 AECU85F103ZK CAPACITOR 0.01µF/50V C320, C321 ECJ1VC1H270J CAPACITOR 27PF/50V (ZPE) ECEA1VU561YE AL CHEM CAPACITOR 560µF/35V...

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