Panasonic NN-S554WF Service Manual
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Panasonic NN-S554WF Service Manual

Panasonic NN-S554WF Service Manual

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ORDER NO.SIMMC0408030A3
Microwave Oven
NN-S554MF NN-S554WF NN-K593MF / NN-K574MF NN-
K574WF / NN-K544WF /
HPE(Hong Kong)
YPQ(Singapore)
MPQ(Malaysia)
TPE(Thailand, Indonesia)
LPK(Philippines)
YTE(Others)
KTE(UAE)
KUE(Egypt)
PTE( Iran)
KPQ(Kuwait, Doha, Qatar, Oman, Bahrain, Pakistan)
STM(Saudi Arabia)
ZPE(CIS Countries)
Please file and use this manual together with the service manual for
Model NN-S553/K593/K573/K543 (ORDER NO. SIMMC0306022C3).
1

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  • Page 1 ORDER NO.SIMMC0408030A3 Microwave Oven NN-S554MF NN-S554WF NN-K593MF / NN-K574MF NN- K574WF / NN-K544WF / HPE(Hong Kong) YPQ(Singapore) MPQ(Malaysia) TPE(Thailand, Indonesia) LPK(Philippines) YTE(Others) KTE(UAE) KUE(Egypt) PTE( Iran) KPQ(Kuwait, Doha, Qatar, Oman, Bahrain, Pakistan) STM(Saudi Arabia) ZPE(CIS Countries) Please file and use this manual together with the service manual for...
  • Page 2 SPECIFICATIONS 2004 Panasonic Home Appliances Microwave Oven (Shanghai) Co., Ltd. / All rights reserved. Unauthorized copying and distribution is a violation of law.
  • Page 6 1. SCHEMATIC DIAGRAM 1.1. NN-S554MF/WF 1.2. NN-K593MF/K574/K544WF...
  • Page 7 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. Caution Servicemen should remove their watches whenever working close to or replacing the magnetron.
  • Page 8 2.1. Check the grounding Do not operate on a two wire extension cord. The microwave oven is designed to be grounded when used. It is imperative, therefore, to ensure the appliance is properly grounded before beginning repair work. 2.2. Inverter warnings DANGER, HIGH VOLTAGE AND HIGH TEMPERATURE (HOT/LINE) OF THE INVERTER POWER SUPPLY (U) The high voltage inverter power supply handles very high voltage...
  • Page 9 Grounding of the inverter circuit board WARNING! DISCHARGE THE HIGH VOLATGE CAPACITORS For about 30 seconds after the oven is turned off, an electric charge remains in the high voltage capacitors in the inverter power supply circuit board. When replacing or checking parts, remove the power plug from the outlet and short the inverter output terminal of the magnetron filament terminals to the chassis ground with an insulated handle screwdriver to discharge.
  • Page 10 Never touch any circuit wiring with your hand or with an insulated tool during operation. 2.3. Part replacement. When any part or component is to be replaced, always ensure that the power cord is removed from the wall outlet. 2.4. When the 10A fuse is blown due to the operation of the short switch: WARNING When the 10A 250V fuse is blown due to the operation of the...
  • Page 11 IMPORTANT NOTICE The following components have potentials above 2000V while the appliance is operated. - Magnetron - High voltage transformer (Located on inverter (U)) - High voltage diodes (Located on inverter (U)) - High voltage capacitors (Located on inverter (U)) Pay special attention to these areas.
  • Page 12 component test procedures. 3.2. Measurement of microwave output The output power of the magnetron can be determined by performing IEC standard test procedures. However,due to the complexity of IEC test procedures, it is recommended to test the magnetron using the simple method outlined below. Necessary Equipment: *1 liter beaker *Glass thermometer / *Wrist watch or stopwatch NOTE:...
  • Page 13 RATED OUTPUT TEMPERATURE RISE 1000W Min.8.6°C 1100W Min.9.4°C 4. EXPLODED VIEW AND PARTS LIST 4.1. EXPLODED VIEW 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.
  • Page 14 Ref. No. Part No. Part Name & Description Pcs/Set Remarks F00066V00HP CAUTION LABEL EXCEPT ZPE F00066W10ZP CAUTION LABEL F10015Q00AP BASE F10084T00AP RUBBER FOOT F110D5R00SAP CABINET BODY K593MF,K574MF F110D5R00HAP CABINET BODY K574WF,K544WF F110D5Q00SAP CABINET BODY S554MF F110D5Q00HAP CABINET BODY S554WF F200A5R50CP OVEN K593MF,K574MF/WF F200A5R20BP...
  • Page 15 Ref. No. Part No. Part Name & Description Pcs/Set Remarks F64605R00BP HEATER SUPPORT K593MF,K574MF/WF,K544WF F40245R00BP EXHAUST GUIDE A K593MF,K574MF/WF,K544WF F01506W50XP NO TOUCHING LABEL K593MF,K574MF/WF,K544WF F02395E20KN CORD CAUTION LABEL KTE,KPQ,STM,PTE,KUE F11404J60XN STOPPER F00066W10MP CAUTION LABEL F02846W10YP NO. LABEL K574MF YPQ F02846W40YP NO.
  • Page 16 Ref. No. Part No. Part Name & Description Pcs/Set Remarks F030A6D70XP LEAD WIRE HARNESS K593MF(KTE,PTE),K574MF/WF(EXCEPT STM & ZPE), / K544WF (EXCEPT ZPE) F030A5R30ZP LEAD WIRE HARNESS K574WF STM,K574MF ZPE,K544WF ZPE F030A6D50XP LEAD WIRE HARNESS S554MF/WF (EXCEPT ZPE) F030A5Q00BP LEAD WIRE HARNESS S554MF/WF ZPE F030E5Q00AP H.V.LEAD WIRE 4.5.
  • Page 17 Ref. No. Part No. Part Name & Description Pcs/Set Remarks F00036W00KP INSTRUCTION MANUAL K593MF (KTE,PTE) F00036W10HP INSTRUCTION MANUAL K574MF (HPE,TPE,MPQ,YTE,LPK,YPQ) F00036W10KP INSTRUCTION MANUAL K574WF (KTE,KPQ,STM,PTE) F00036W10ZP INSTRUCTION MANUAL K574MF (ZPE) F00036W20KP INSTRUCTION MANUAL K544WF (KTE,PTE,KUE) F00036W20HP INSTRUCTION MANUAL K544WF (HPE,TPE,MPQ,YTE) F00036W20ZP INSTRUCTION MANUAL K544WF (ZPE)
  • Page 19 Ref. No. Part No. Part Name & Description Pcs/Set Remarks F603L6W10HP D.P.CIRCUIT(AU) K574MF (HPE,TPE) F603L6W10MP D.P.CIRCUIT(AU) K574MF (MPQ) F603L6W10YT D.P.CIRCUIT(AU) K574MF (YTE) F603L6W10LP D.P.CIRCUIT(AU) K574MF (LPK) F603L6W10YP D.P.CIRCUIT(AU) K574MF (YPQ) F603L6W10KT D.P.CIRCUIT(AU) K574WF (KTE,PTE) F603L6W10KP D.P.CIRCUIT(AU) K574WF (KPQ) F603L6W10ST D.P.CIRCUIT(AU) K574WF (STM) F603L6W10ZP D.P.CIRCUIT(AU)
  • Page 20 Ref. No. Part No. Part Name & Description Pcs/Set Remarks F00076W10KP NAME PLATE K574WF KPQ F00076W10ST NAME PLATE K574WF STM F00076W10ZP NAME PLATE K574MF ZPE F00076W10PT NAME PLATE K574WF PTE F00076W20HP NAME PLATE K544WF HPE F00076W20TP NAME PLATE K544WF TPE F00076W20MP NAME PLATE K544WF MPQ...
  • Page 22 5.2. NN-K593MF...
  • Page 24 5.3. NN-K574MF/WF, NN-K544WF...
  • Page 26 5.4. PARTS LIST 5.4.1. NN-S554MF/S554WF/K574MF/K574WF/K544WF...
  • Page 27 Ref. No. Part No. Part Name & Description Pcs/Set Remarks BZ310 AEFBAT2001 BUZZER 2.0KHz C221 AECUU06F103Z CHIP CAPACITOR 0.01 F/50V C484 AECUU06F103Z CHIP CAPACITOR 0.01 F/50V (K574MF/WF) C343 AECUU06C101J CHIP CAPACITOR 100PF/50V C12,C340,C440 AECUT06F104Z CHIP CAPACITOR F/25V C320,C321 AECUT06C180J CHIP CAPACITOR 18PF/25V, S554MF/WF (YTE,ZPE) C320,C321 AECUU06C220J...
  • Page 28 Ref. No. Part No. Part Name & Description Pcs/Set Remarks R310 AERJ06J332R CHIP RESISTOR 3.3K,1/10W,5% R330 AERJ06J333R CHIP RESISTOR 33K,1/10W,5% R181 AERJ06J360R CHIP RESISTOR ,1/10W,5% (S554MF/WF) R487 AERJ06J433R CHIP RESISTOR 43K,1/10W,5% (K574MF/WF) R331,R441 AERJ06J471R CHIP RESISTOR ,1/10W,5% R360 AERJ06J472R CHIP RESISTOR 4.7K,1/10W,5% R480,R481 AERJ06J472R...
  • Page 29 Ref. No. Part No. Part Name & Description Pcs/Set Remarks BZ310 AEFBAT2001 BUZZER 2.0KHz C80,C81,C221,C484,C486 AECUU06F103Z CHIP CAPACITOR 0.01 F/50V C90,C343 AECUU06C101J CHIP CAPACITOR 100PF/50V C12,C222,C340,C440 AECUT06F104Z CHIP CAPACITOR F/25V C330 AECUU06R102K CHIP CAPACITOR 1000PF/50V C481 AECUU06F473Z CHIP CAPACITOR 0.047 F/50V C483 AECETS1HR47B...
  • Page 30 Ref. No. Part No. Part Name & Description Pcs/Set Remarks Q182,Q222,Q223,Q224 AESC23JKE CHIP DIGI-TRANSISTOR Q10,Q180 2SD1859TV2Q TRANSISTOR Q181,Q220,Q225 2SC2412KT146 CHIP TRANSISTOR SW1,SW2,SW21-SW23,SW28- EVQ11L05R SLIGHT TOUCH SWITCH SW30 RSW90 AEVQSRBV18 REVOLVING SWITCH RE80 AEVQEC16B24 REVOLVING ENCODER R182,R183 AERJ06J101R CHIP RESISTOR ,1/10W,5% R80,R81 AERJ06J102R CHIP RESISTOR...
  • Page 31 ORDER NO.SIMMC 0301001A1 Microwave Oven NN-T583SF / NN-T563SF / NN-T563SAF / NN-S563 NN-S553 / NN-S543 NN-S533 / NN-S523 NN-S513 / NN-S503 APH(USA) CPH(CANADA) Please file and use this specified manual together with the service manual for Model NN-S560BF/WF(ORDER NO. SIMMC0001002C3). SPECIFICATIONS...
  • Page 32 2003 Shanghai Matsushita Microwave Oven Co., Ltd. / All rights reserved. Unauthorized copying and distribution is a violation of law.
  • Page 36 1. SCHEMATIC DIAGRAM (APH) 2. SCHEMATIC DIAGRAM (CPH)
  • Page 37 3. MEASUREMENTS AND ADJUSTMENTS...
  • Page 38 3.1. Adjustment of primary latch switch, secondary latch switch and short switch. 1. Mount the Primary latch switch, the Secondary latch switch and the short switch to the door hook assembly as shown in ILL. NOTE: No specific individual adjustment during installation of the Primary latch switch, Secondary latch switch or short switch to the door hook are required.
  • Page 39 3.2. Measurement of microwave output The output power of the magnetron can be determined by performing IEC standard test procedures. However,due to the complexity of IEC test procedures, it is recommended to test the magnetron using the simple method outlined below. Necessary Equipment: *1 liter beaker *Glass thermometer / *Wrist watch or stopwatch NOTE:...
  • Page 40 RATED OUTPUT TEMPERATURE RISE 1200W(IEC705-88) Min. 18.5°F(10.3°C) 1300W(IEC705-88) Min. 19.8°F(11.1°C) 1400W(IEC705-88) Min. 21.6°F(12.0°C) 4. PROCEDURE FOR MEASURING MICROWAVE ENERGY LEAKAGE NOTE: The U.S. Government standard is 5 mW/cm while in the customer’s home. 2mW/cm stated here is our own voluntary standard. (1mW/ for Canada) 4.1.
  • Page 41 2. Set the radiation monitor to 2450MHz and use it following the manufacturer's recommended test procedure to assure correct results. 3. When measuring the leakage, always use the 2 inch (5cm) spacer supplied with the probe. 4. Tap the start pad or set the timer and with the magnetron oscillating, measure the leakage by holding the probe perpendicular to the surface being measured.
  • Page 42 5. EXPLODED VIEW AND PARTS LIST 6. 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 43 When replacing any of these components, use only manufacture’s specified parts. Ref. No. Part No. Part Name & Description Pcs/Set Remarks F00064W70AP CAUTION LABEL T*** APH F00069660AP CAUTION LABEL S*** APH F00067600CP CAUTION LABEL F00075Y00SAP NAME PLATE T583SF APH F00075Y20SAP NAME PLATE T563SF APH F00075V50SAP...
  • Page 44 Ref. No. Part No. Part Name & Description Pcs/Set Remarks F64508660AP SENSOR COVER B T*** APH/CPH, S563 APH/CPH, S533 APH F65434W00AP SENSOR COVER C T*** APH/CPH, S563 APH/CPH, S533 APH F612E5Y30AP INCANDESCENT LAMP(U) 125V, 60Hz, 20W F61425U30XN MICRO SWITCH (PRIMARY LATCH SWITCH) (KW3-0D-A (474)) F61415U30XN MICRO SWITCH (SECONDARY LATCH SWITCH) (KW3-0D-A (471))
  • Page 45 Ref. No. Part No. Part Name & Description Pcs/Set Remarks F3018-1200 DOOR KEY A T*** APH/CPH F30184Y30XN DOOR KEY A S*** APH/CPH F302A5Y00SAP DOOR A (U) T*** APH/CPH F30015Y30BAP DOOR A S***BF (EXCEPT S503BF APH) F30015Y30HAP DOOR A S***WF (EXCEPT S503WF APH) F30015Y30SAP DOOR A S***MF F30015A00BAP DOOR A...
  • Page 46 Ref. No. Part No. Part Name & Description Pcs/Set Remarks F030A5Y30AP LEAD WIRE HARNESS F030A5Y30CP LEAD WIRE HARNESS F030E5L00AP H.V.LEAD WIRE F030E4T00CP H.V.LEAD WIRE 9. ESCUTCHEON BASE ASSEMBLY (NN-S*** APH/ CPH)
  • Page 47 Ref. No. Part No. Part Name & Description Pcs/Set Remarks F603L5Y30AP D.P.CIRCUIT S563BF/WF/MF APH F603L5Y40AP D.P.CIRCUIT S553BF/WF APH F603L5W70AP D.P.CIRCUIT S543BF/WF APH, S543BFW APH F603L5Y70AP D.P.CIRCUIT S533BF/WF APH F603L5Y60AP D.P.CIRCUIT S503BF/WF APH F603L5Y30CP D.P.CIRCUIT S563BF/WF/MF CPH F603L5Y70CP D.P.CIRCUIT S533WF CPH F603L5Y80CP D.P.CIRCUIT S523WF CPH...
  • Page 48 Ref. No. Part No. Part Name & Description Pcs/Set Remarks F603L5Y00AP D.P.CIRCUIT T583SF APH F603L5Y20AP D.P.CIRCUIT T563SF APH, T563SAF APH F603L5Y00CP D.P.CIRCUIT T583SF CPH F800L5Y00BAP CONTROL PANEL (AU) T*** APH/CPH F630Y5Y00SAP MEMBRANE SWITCH (U) T583SF APH F630Y5Y20SAP MEMBRANE SWITCH (U) T563SF APH, T563SAF APH F630Y5Y00SCP MEMBRANE SWITCH (U) T583SF CPH...
  • Page 49 Ref. No. Part No. Part Name & Description Pcs/Set Remarks F00035X20AP INSTRUCTION MANUAL T583SF APH F00035Y30AP INSTRUCTION MANUAL T563SF APH, T563SAF APH, S563BF/WF/MF APH F00035Y40AP INSTRUCTION MANUAL S553BF/WF APH, S503BF/WF APH F00035W70AP INSTRUCTION MANUAL S543BF/WF APH, S543BFW APH F00035Y70AP INSTRUCTION MANUAL S533BF/WF APH F00035Y00CP INSTRUCTION MANUAL...
  • Page 50 Ref. No. Part No. Part Name & Description Pcs/Set Remarks F01068100XN P.E.BAG F01078100XN DOOR SHEET F01085T20RP TRAY PACKING F06014T00AP COOKING TRAY F01924T00AP SHEET T***SF, T***SAF, S***BF, S***MF F00065G40AP CAUTION LABEL 12. DIGITAL PROGRAMMER CIRCUIT (NN-T583SF APH/CPH) SCHEMATIC DIAGRAM...
  • Page 52 13. DIGITAL PROGRAMMER CIRCUIT (NN-T563SF APH, / NN-T563SAF APH) SCHEMATIC DIAGRAM...
  • Page 54 14. DIGITAL PROGRAMMER CIRCUIT(NN-S*** APH/ CPH) SCHEMATIC DIAGRAM...
  • Page 56 15. DIGITAL PROGRAMMER CIRCUIT PARTS LIST...
  • Page 57 Ref. No. Part No. Part Name & Description Pcs/Set Remarks BZ310 AEFBAT2001 BUZZER 2.0KHz C221 AECUU06F103Z CHIP CAPACITOR 0.01 F/50V C484 AECUU06F103Z CHIP CAPACITOR 0.01 F/50V (T*** APH/CPH, S563 APH/CPH, S533 APH) C351 AECUU06C101J CHIP CAPACITOR 100PF/50V (S*** APH/CPH) C343 AECUU06C101J CHIP CAPACITOR 100PF/50V (T*** APH/CPH) C12, C440...
  • Page 58 Ref. No. Part No. Part Name & Description Pcs/Set Remarks R490, R492 AERJ06J103R CHIP RESISTOR 10K, 1/16W, 5% (T583 APH/CPH, S563 APH/CPH, S533 APH) R221, R228 AERJ06J104R CHIP RESISTOR 100K, 1/16W, 5% R229, R350, R351 AERJ06J104R CHIP RESISTOR 100K, 1/16W, 5% (S*** APH/CPH) R342, R343 AERJ06J104R CHIP RESISTOR...
  • Page 59 ORDER NO. SIMMC 0001002C1 Service Manual Microwave Oven MODELS Canada NN-S560BF/WF NN-S550BF/WF NN-S540BF/WF NN-L530BF NN-L530WF NN-L520WF NN-S510WF * RPH Model refer to the last page. Specifications for APH : NN-S560BF/WF NN-S550BF/WF NN-S540BF/WF NN-L530BF/WF Model: Specifications: Power Source: * 120V AC Single Phase, 60Hz Power Requirement: 1370W 1370W...

  • Page 60: Table Of Contents

    5. Any serviceman who learns of any accident pertaining to microwave radiation leakage including the oven operating with open door should immediately notify the appropriate address listed below and Center for Devices and Radiological Health, DHHS. IN U.S.A. Panasonic Services Company IN PUERTO RICO (PASC) 50 Meadowland Parkway,...
  • Page 61 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 NEW HV and high current. 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 62: Feature Chart

    FEATURE CHART NN-S560WF NN-S550WF NN-S540WF NN-S510WF MODEL FEATURE NN-S530WF NN-S520WF Three Stage Cooking Inverter Turbo Defrost Auto Reheat Inverter Auto Cook Sensor Reheat Sensor Cook Quick Min Popcorn Timer Digital Clock CONTROL PANEL NN-S560(CPH) NN-S550 NN-S560(APH) a a a a a a a a a a Inverter Auto...
  • Page 63 CONTROL PANEL NN-S540 NN-L530 NN-L520 MN-S510 Display Windows Popcorn Pad Inverter Turbo Defrost Pad (4a) Sensor Reheat Pad (4b) Auto Reheat Pad Power Level Pad Number Pads Timer Pad Clock Pad Sensor Cook Pad (10) Inverter Auto Cooking Pads (11) Quick Min Pad (12) More /Less Pad (13) Cooking Guide (14) Auto Cook Pad...

  • Page 64: Operation And Digital Programmer Circuit Test Procedure

    OPERATION AND DIGITAL PROGRAMMER CIRCUIT TEST PROCEDURE When you pluge the power supply cord into the wall outlet, microwave oven automatically enter into the state of lb / oz. If you want to use g / kg state, please press Start pad after pluging the power source. 1.
  • Page 65 8. Auto Reheat OPERATION SCROLL DISPLAY OPERATION SCROLL DISPLAY 3. Press Serving / Weight pad. (Select 4. 6. 10. 14 slices) 1. Press Auto Reheat pad twice for two servings. 4. Press Start pad. 2. Press Start pad.Auto Reheat 4.10 cycle begins time counts down.

  • Page 66: Schematic Diagrams

    SCHEMATIC DIAGRAM (APH) SCHEMATIC DIAGRAM (APH) - 7 -...
  • Page 67 SCHEMATIC DIAGRAM (CPH) SCHEMATIC DIAGRAM (CPH) - 8 -...

  • Page 68: 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 69 4. Sensor Cooking (NN-S560BFAPH/CPH NN- AUTO SENSOR COOKING/REHEAT PROCESS S560WFAPH/CPH) Auto sensor cooking is a revolutionary way to cook by microwave without setting a power level or selecting a time. All that is necessary is to select an Auto Sensor Program before starting to cook.

  • Page 70: 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 71 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 72: 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 73 5. Door assembly DOOR (A) Remove door C from door E by carefully pulling outward starting from CCREEN B upper right hand corner using a flat blade screwdriver. DOOR A (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 74 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 75: Component Test Procedure

    COMPONENT TEST PROCEDURE 5. Inverter Power Supply (U)for USA only 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 76 6. Steam Sensor and Digital Programmer Circuit In order to determine if the steam sensor function of the digital programmer circuit is in working order or not, do the following test. 1) Place a water load (150 cc) in the oven. 2) Tap Sensor Reheat pad.

  • Page 77: 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 78: Procedure For Measuring Microwave Energy Leakage

    PROCEDURE FOR MEASURING MICROWAVE ENERGY LEAKAGE (B) Should the radiation leakage be more than 2 mW/cm (1mW/cm WARNING for Canada) after determining that all parts are in good Check for radiation leakage after every servicing. Should condition, functioning properly, and genuine replacement parts as listed in this manual have been used, immediately the leakage be more than 2 mW/cm (1mW/cm...

  • Page 79: 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 80 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 81 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 , Power Level .
  • Page 82 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 83: Exploded View And Parts List

    EXPLODED VIEW AND PARTS LIST - 24 -...

  • Page 84: Schematic Diagram & Parts List Of Digital Programmer Circuit

    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. Pcs/ Ref.No.
  • Page 85 Pcs/ Ref.No. Part No. Part name & Description Remarks AC120V, SINGLE PHASE, 60Hz F400A4T00AP FAN MOTOR F40084T00AP FAN BLADE F40254T00AP AIR GUIDE A F41444T00AP ORIFICE F64505540AP EXHAUST GUIDE B S560*F*PH A707S4T00AP STEAM SENSOR S560*F*PH F65434T00AP SENSOR BRACKET C S560*F*PH F612E9660AP INCANDESCENT LAMP(U) 125V, 60Hz, 20W ANE6142-1450...
  • Page 86 DOOR ASSEMBLY (S-4T0) Pcs/ Ref.No. Part No. Part name & Description Remarks B3018-1480 DOOR KEY ==#A DOOR A F30014T00BAP ****BF*PH F30014T00HAP DOOR A ****WF*PH F302K4T00AP DOOR E (U) DOOR KEY SPRING B30214000AP F30854T00AP DOOR C F31454T00AP DOOR SCREEN A F31464T00BAP DOOR SCBEEN B ****BF*PH DOOR SCREEN B...
  • Page 87 ESCUTHEON BASE ASSEMBLY (S-4T0) Part name & Description Pcs/ Ref.No. Part No. Remarks S560BFAPH/S560WFAPH RTL (W/COMPONENT) F603L4T00AP D.P.CIRCUIT S560BFCPH/S560WFCPH RTL (W/COMPONENT) F603L4T00CP D.P.CIRCUIT S550BFAPH/S550WFAPH RTL (W/COMPONENT) F603L4T10AP D.P.CIRCUIT D.P.CIRCUIT S540BFAPH/S540WFAPH RTL (W/COMPONENT) F603L4T20AP F603L4T20CP D.P.CIRCUIT S540BFCPH/S540WFCPH RTL (W/COMPONENT) L530BF/WFAPH RTL (W/COMPONENT) F603L4T30AP D.P.CIRCUIT L530WF/L520WFCPH...
  • Page 88 PACKING AND ACCESORIES OVEN WALL TRAY PAD Cut into three parts when packing. FRONT VIEW ROLLER RING(U) Cut into two parts when packing. (S-4T0) Pcs/ Ref.No. Part No. Part name & Description Remarks S560BFAPH/S560WFAPH INSTRUCTION MANUAL F00034T00AP S560BFCPH/S560WFCPH INSTRUCTION MANUAL F00034T00CP S550BFAPH/S550WFAPH INSTRUCTION MANUAL...
  • Page 89 WIRING MATERIAL (S-4T0) Pcs/ Ref.No. Part No. Part name & Description Remarks LEAD WIRE HARNESS F030A4T20AP ******APH F030A4T00CP LEAD WIRE HARNESS ******CPH F030E4T00AP H.V. LEAD WIRE ******APH H.V. LEAD WIRE F030E4T00CP ******CPH - 30 -...
  • Page 90 DIGITAL PROGRAMMER CIRCUIT (NN-S560BFAPH/CPH,S560WFAPH/CPH) PARTS LIST Pcs/ Ref.No. Part No. Part name & Description Remarks BZ310 AEFB22EP20TL BUZZER 2.0KHz C12,C290,C291,C300,C301 AECUB2F104ZK CAPACITOR 0.1µF/25V C330 AECUB5C102KK CAPACITOR 0.1µF/50V C340 AECUB5F103ZK CAPACITOR 0.01µF/50V ECEA1VM471B ELECTROLYTIC CAPACITOR A 470µF/35V ECEA1CKA100B ELECTROLYTIC CAPACITOR A 10µF/16V AEEMXF01505W CONNECTOR...
  • Page 91 DIGITAL PROGRAMMER CIRCUIT (NN-S530BFAPH/CPH,S540BFAPH/CPH,S540WFAPH/CPH,L530BFAPH/CPH, L530WFAPH/CPH,L520WFAPH/CPH,L510WFAPH/CPH) PARTS LIST Pcs/ Ref.No. Part No. Part name & Description Remarks BZ310 AEFB22EP20TL BUZZER 2.0KHz C12,C290,C291,C300,C301 AECUB2F104ZK CAPACITOR 0.1MF/25V C330 AECUB5C102KK CAPACITOR 0.1MF/50V C340 AECUB5F103ZK CAPACITOR 0.01MF/50V ECA1VM471B ELECTROLYTIC CAPACITOR AL 470MF/35V ECEA1CKA100B ELECTROLYTIC CAPACITOR AL 10MF/16V AEEMXF01505W CONNECTOR...
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  • Page 94 Model for Latin America & Mexico MODELS Mexico Latin America NN-S540BF/WF NN-540BF/WF * This product is based on NN-S540BF/WF APH model, the different parts are listed as followings: * Any serviceman who has any quiries or order service parts, please contact own area’s service company Pcs/ Ref.No.

This manual is also suitable for:

Nn-s554mfNn-k593mfNn-k574mfNn-k574wfNn-k544wf

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