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Panasonic NN-SD698S manual

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Table of contents for the manual

  • Page 1

    © 2008 Panas onic Home Appliances Microwave Oven (Shanghai) Co., Ltd. All rights reserved. Unauthorize d copying and distrib ution is a violation of law. NN-SD698S NN-ST678S NN-ST658W RPH (LATIN AME RICA) RUH (MEXICO) Micr owave Ov en ORDER NO.PHAMOS0801002C3 E1[...]

  • Page 2

    2 NN-SD698S / NN-ST6 78S / NN-ST658W[...]

  • Page 3

    3 NN-SD698S / NN-ST6 78S / NN-ST658W[...]

  • Page 4

    1 SCHEMATIC DIAGRAM 5 2 DESCRIPTIO N OF OPERATING SEQU ENCE 6 2.1. Variable power cooking control 6 2.2. Inverter power supply circuit 6 2.3. Inverter defros t 6 2.4. Sensor cooking 6 2.5. Sensor reheat 7 2.6. Steam sensor and digital progra mmer circuit 7 2.7. Therm istor 7 3 CAUTIONS TO BE OBSE RVED WHEN TROU BLESHOOTING 8 3.1. Check the ground i[...]

  • Page 5

    1 SCHEMATIC DIAGR AM 5 NN-SD698S / NN-ST6 78S / NN-ST658W[...]

  • Page 6

    2.1. Variable power cooking control High Voltage Inverter Power Supply (U) controls output power by the signal from Digital Programmer Circuit (DPC). Power relay always stay on, but PWM (Pulse Width Modulation) signal controls microwave output power. NOTE: The ON/OFF time ratio does not correspond with the percentage of microwave power since approx[...]

  • Page 7

    Explanation of the Auto Sensor Cooking process 1. During the first 10 second period there is no microwave activity. When calculating the T2 time by using the formula below make sure this 10 seconds is subtracted from the T1 time. In other words, T1 time starts at the end of the 10 second period. 2. T1 time The total amount of time it takes themicro[...]

  • Page 8

    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 and rings whenever working close to or replacing the magnetron. 3.1. Check the grounding Do not operate on a two wire exten[...]

  • Page 9

    Discharging the high voltage capacitors WARNING There is high voltage present with high current capabilities in the circuits of the primary and secondary windings, choke coil and heat sinkof the inverter. It is extremely dangerous to work on or near these circuits with the oven energized. DO NOT measure the voltage in the high voltage circuit inclu[...]

  • Page 10

    4.1. Magnetron 1. Discharge high voltage charge. 2. Remove 1 screw holding air guide A on the oven cavity. 3. Remove 1 screw holding air guide A on the magnetron. 4. Remove 1 screw holding air guide B. 5. Remove 1 screw holding themistor. 6. Disconnect 2 high voltage lead wires from magnetron filament terminals. 7. Remove 4 screws holding the magne[...]

  • Page 11

    4.3. Low voltage transformer and/or power relays (RY1, RY2) CAUTION: Be sure to ground any static electric charge built up in your body before handling the DPC. 1. Replace D.P.C. board. (A) Using solder wick or a desoldering tool and 30W soldering iron carefully remove all solder from the terminal pins of the low voltage transformer and/or power re[...]

  • Page 12

    4.6. Turntable motor 1. Remove the motor cover by breaking off at the 8 spots indicated by arrows with a cutter or the like. NOTE: After removing the motor cover, be sure that cut portions are properly trimmed or bent to the inside so that no sharp edges will be exposed to outside. 2. Disconnect 2 lead wires connected to the turntable motor. 3. Rem[...]

  • Page 13

    4.8. Inverter power supply CAUTIONS 1. Always leave the ground ing plate in place. 2. Always securely tighten the ground screw through the bottom of the chassis (base) . 3. Secure ly connect 3 lead wire conne ctors. 4. Make sure the heat sink has enough space (gap) from the oven. Take specia l care not to dress any lead wire over the aluminum heat [...]

  • Page 14

    WARNING 1. High voltage is presen t at the output termin als of the High Voltag e Inverter (U) includi ng aluminum heat sink during any cook cycle. 2. It is neither neces sary nor advisable to attemp t measuremen t of the high voltage. 3. Before touching any oven compo nents, or wiring, always unplug the power cord and discharge the high voltage ca[...]

  • Page 15

    5.5. Inverter power supply (U) DO NOT try to REPAIR H.V. Inverter power supply (U). Replace complete H.V. Inverter(U) Unit. WARNING: HIGH VOLTAGE Test if failure codes H95, H97 or H98 appear when performing the following procedure. It is recommende d to use an AC line input current ammeter for testing. Test 1 1. With the oven unit’s AC power supp[...]

  • Page 16

    6.1. Adjustment of primary latch switch, secondary latch switch and monitor interlock switch. 1. Mount the Primary latch switch, the Secondary latch switch and the Monitor interlock switch to the door hook assembly as shown in illustration. NOTE: No specific individual adjustments during installation of the Primary latch switch, Secondary latch swi[...]

  • Page 17

    7.1. Equipment • Electromagnat ic radiation monitor • Glass thermometer 212°F or 100°C • 600cc glass beaker 7.2. Procedure for measuring radiation leakage Note before measuring: • Do not exceed meter full scale deflection. Leakage monitor should initially be set to the highest scale. • To prevent false readings, the test probe should be[...]

  • Page 18

    7.4. At least once a year, have the radiation monitor checked for calibration by its manufacturer. 18 NN-SD698S / NN-ST6 78S / NN-ST658W[...]

  • Page 19

    8 TROUBLESHOOTING GUIDE DANGER: HIGH VOLTAGES 1. DO NOT RE-ADJUST PRESET CONTROL on the H.V.In verter (U). It is very dange rous to repair or adjust without proper test equipment because this circuit genera tes very large current and high voltage. Operating a misaligned inverte r circuit is dange rous. 2. Ensure proper ground ing before trouble sho[...]

  • Page 20

    8.2. (Troubleshoo ting) Other problems SYMPTOM CAUSE CORRECTIONS 1. Oven is dead. 1. Open or loose lead wire harnes s Fuse is OK. 2. Open therma l cutout / thermistor Check therma l cutout is defect ive. No display and no operat ion at all. 3. Open low voltage transfo rmer 4. Defect ive DPC 2. No display and no operat ion at all. Fuse is blown. 1. [...]

  • Page 21

    8.3. Troubleshoot ing of inverter circuit (U) and magnetron This oven is programmed with a self diagnostics failure code system which will help for troubleshooting. H95, H97, H98 and H99 are the provided failure codes to indicate magnetron and inverter circuit problem areas. This section explains failure codes of H95, H97, H98 and H99. First, you m[...]

  • Page 22

    8.4. SIMPLE WAY OF H.V. INVERTER/MAGNETRON TROUBLESH OOTING Purpose: Simple way (3/37 seconds rule) of identifying whether it’s Magnetron, Inverter or others. Set-up: The unit under question is connected through the Ammeter as shown below. Procedure: Follow the matrix table below to identify the problem source. Note: Do not replace both Inverter [...]

  • Page 23

    8.6. How to check the semiconducto rs using an OHM meter 23 NN-SD698S / NN-ST6 78S / NN-ST658W[...]

  • Page 24

    9 EXPLO DED VIEW AND PARTS LIST 9.1. EXPLODED VIEW 24 NN-SD698S / NN-ST6 78S / NN-ST658W[...]

  • Page 25

    9.2. 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 characteristic s important for safety. When replacing any of these components, use only manufacture’ s specified parts. Ref. No. P[...]

  • Page 26

    Ref. No. Part No. Part Name & Description Pcs/Set Remarks 45 F65856K50AP INVERTER BRACKET 1 46 F03347D00RP MENU LABEL 1 SD698S 46 F03347G50RP MENU LABEL 1 ST678S,ST658W 48 F40264T60APG AIR GUIDE B 1 52 F00066G00RP CAUTION LABEL 1 SD698S RPH,ST678S RPH 26 NN-SD698S / NN-ST6 78S / NN-ST658W[...]

  • Page 27

    9.3. WIRING MATERIALS Ref. No. Part No. Part Name & Description Pcs/Set Remarks W1 F030A7D00RP LEAD WIRE HARNESS 1 W2 F030E5L00AP H.V.LEAD WIRE 1 W3 F03537D00AP LEAD WIRE HARNESS U 1 (INCLUDING THERMISTOR) 27 NN-SD698S / NN-ST6 78S / NN-ST658W[...]

  • Page 28

    9.4. DOOR ASSEMBLY Ref. No. Part No. Part Name & Description Pcs/Set Remarks D1 F30186P40AG DOOR KEY A 1 SD698S,ST678S D1 F30184Y30XN DOOR KEY A 1 ST658W D2 F301A8X00SCP DOOR A (U) 1 SD698S D2 F301A8M00SAP DOOR A (U) 1 ST678S D3 F302K5L00AP DOOR E (U) 1 D4 F30215G10XN DOOR KEY SPRING 1 D5 F30854T00AP DOOR C 1 D6 F31454T00AP DOOR SCREEN A 1 D7 F[...]

  • Page 29

    9.5. ESCUTCHEO N BASE ASSEMBLY 9.5.1. NN-SD698S Ref. No. Part No. Part Name & Description Pcs/Set Remarks E1 F603L8X00RP D.P.CIRCUIT (AU) 1 SD698S E2 F603Y8X00RP D.P.CIRCUIT (DU) 1 SD698S E3 F800L8X00SRP ESCUTCHEON BASE (U) 1 SD698S E4 F66164W20AP FLAT CABLE 1 SD698S E5 F82988X00SAP BUTTON 1 SD698S E6 F80725Y00SAP DOOR OPENING BUTTON (U) 1 SD69[...]

  • Page 30

    9.5.2. NN-ST678S Ref. No. Part No. Part Name & Description Pcs/Set Remarks E21 F603L8V60RP D.P.CIRCUIT (AU) 1 ST678S E23 F800L8V60SRP ESCUTCHEON BASE (U) 1 ST678S E26 F80725Y00SAP DOOR OPENING BUTTON (U) 1 ST678S E27 F82565Y00AP DOOR OPENING LEVER 1 ST678S E28 F80375K00AP COOK BUTTON SPRING 1 ST678S E29 F630Y8V60BRP MEMBRANE SWITCH (U) 1 ST678S[...]

  • Page 31

    9.5.3. NN-ST658W Ref. No. Part No. Part Name & Description Pcs/Set Remarks E41 F603L7G50RP D.P.CIRCUIT (AU) 1 ST658W E43 F80346K50HAP ESCUTCHEON BASE 1 ST658W E49 F630Y8V70HRP MEMBRANE SWITCH (U) 1 ST658W E50 L5AAAEC00056 DISPLAY 1 ST658W E51 F66175L00AP DISPLAY TUBE COVER 1 ST658W E52 F67005U40XN RUBBER CONNECTOR 1 ST658W 31 NN-SD698S / NN-ST6[...]

  • Page 32

    9.6. PACKING AND ACCESSORIES Ref. No. Part No. Part Name & Description Pcs/Set Remarks P1 F00038X00RP INSTRUCTION MANUAL 1 SD698S P1 F00038V60RP INSTRUCTION MANUAL 1 ST678S,ST658W P2 F01028X00SRP PACKING CASE,PAPER 1 SD698S RPH P2 F01028V60SRP PACKING CASE,PAPER 1 ST678S RPH P2 F01028V70HRP PACKING CASE,PAPER 1 ST658W RPH P3 F01046K50AP UPPER F[...]

  • Page 33

    10 DIGITAL PROGRAMM ER CIRCUIT 10.1. NN-SD698S 33 NN-SD698S / NN-ST6 78S / NN-ST658W[...]

  • Page 34

    34 NN-SD698S / NN-ST6 78S / NN-ST658W[...]

  • Page 35

    10.2. NN-ST678S 35 NN-SD698S / NN-ST6 78S / NN-ST658W[...]

  • Page 36

    36 NN-SD698S / NN-ST6 78S / NN-ST658W[...]

  • Page 37

    10.3. NN-ST658W 37 NN-SD698S / NN-ST6 78S / NN-ST658W[...]

  • Page 38

    38 NN-SD698S / NN-ST6 78S / NN-ST658W[...]

  • Page 39

    10.4. PARTS LIST 10.4.1. NN-SD698S Ref. No. Part No. Part Name & Description Pcs/Set Remarks BZ310 L0DDEA000014 BUZZER 1 2.0KHz C10 AECETK1V471B AL CHEM CAPACITOR 1 470µF/35V C13,C16 AECETS1C220B AL CHEM CAPACITOR 2 22µF/16V C482 AECETS1H010B AL CHEM CAPACITOR 1 1µF/50V C483 AECETS1HR47B AL CHEM CAPACITOR 1 0.47µF/50V C485 AECETS1H2R2B AL C[...]

  • Page 40

    10.4.3. NN-ST658W Ref. No. Part No. Part Name & Description Pcs/Set Remarks BZ310 L0DDEA000014 BUZZER 1 2.0KHz C12 AECETK1V471B AL CHEM CAPACITOR 1 470µF/35V C13 AECETS1C220B AL CHEM CAPACITOR 2 22µF/16V CX320 H2B800400007 CERAMIC RESONATOR 1 8.0MHz D220-D222,D224,D227 MA2C19600E DIODE 5 D10-D13 B0EAKT000025 DIODE 4 IC1 MN101C78ADD L.S.I. 1 I[...]