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10.3.3. NN-ST661B, ST661W, ST651B, ST651W

Ref. No.

Part No.

Part Name & Description

Pcs/Set

Remarks

BZ210

L0DDEA000014

BUZZER

2.0KHz

C10

F2A1H471B575

AL CHEM CAPACITOR

470µF/50V

C11

F2A1C220B624

AL CHEM CAPACITOR

22µF/16V

DISP110

L5AYAYY00096

LCD

DISP HOLDER

F66179Y20AP

LCD HOLDER

F67525E20XN

DIFFUSION SHEET

D40, D41, D189, D190, D221,
D227, D228, D230

B0AACK000004

DIODE

D10-D13

B0EAKT000025

DIODE

IC1

MN69F009AC1

L.S.I.

Q10, Q180

B1BAAJ000003

TRANSISTOR

D25

D4EAY271A036

ZENER RESISTOR

270V

RY1

AEBGJQC25F18

POWER RELAY

T10

G4C2AAD00006

LOW VOLTAGE TRANSFORMER

120V

ZD10

B0BA5R600016

ZENER DIODE

NN-SD691S / NN-ST681S / NN-SD671S / NN-ST671S / NN-ST661S / NN-ST661B / NN-ST661W / NN-ST651B / NN-ST651W

05/11
S-9Y0, S-9Y1
S-9Y2, S-9Y3
S-9Y4, S-9Y9
Printed in China

Содержание Inverter NN-ST651W

Страница 1: ...anasonic Home Appliances Microwave Oven Shanghai Co Ltd 2011 NN SD691S NN ST681S NN SD671S NN ST671S NN ST661S NN ST661B NN ST661W NN ST651B NN ST651W CPH CANADA Microwave Oven ORDER NO PHAMOS1105002CE E1 ...

Страница 2: ...2 NN SD691S NN ST681S NN SD671S NN ST671S NN ST661S NN ST661B NN ST661W NN ST651B NN ST651W ...

Страница 3: ...3 NN SD691S NN ST681S NN SD671S NN ST671S NN ST661S NN ST661B NN ST661W NN ST651B NN ST651W ...

Страница 4: ...board membrane Membrane switch assembly 16 5 5 Inverter power supply U 17 6 MEASUREMENTS AND ADJUSTMENTS 18 6 1 Adjustment of primary interlock switch secondary interlock switch and monitor switch 18 6 2 Measurement of microwave output 18 7 PROCEDURE FOR MEASURING MICROWAVE ENERGY LEAKAGE 19 7 1 Equipment 19 7 2 Procedure for measuring radiation leakage 19 7 3 Record keeping and notification after...

Страница 5: ...1 SCHEMATIC DIAGRAM 1 1 NN SD691S SD671S 5 NN SD691S NN ST681S NN SD671S NN ST671S NN ST661S NN ST661B NN ST661W NN ST651B NN ST651W ...

Страница 6: ...1 2 EXCEPT NN SD691S NN SD671S 6 NN SD691S NN ST681S NN SD671S NN ST671S NN ST661S NN ST661B NN ST661W NN ST651B NN ST651W ...

Страница 7: ...e operating conditions and output necessary to control PWM signal to the Inverter Power Supply for control of the output power 2 3 Inverter defrost When the Auto Control feature is selected and the Start pad is tapped 1 The digital programer circuit determines the power level and cooking time to complete cooking and indicates the operating state in the display window Table shows the corresponding ...

Страница 8: ...he Auto Sensor Reheat process is similar as Auto Sensor Cooking process Balance of cooking time T2 time The balance of cooking time which is called T2 time can be calculated by the following formula T2 time in sec T1 time X K factor 150 NOTE Remember the T1 time starts after the 10 second period The coefficient K is programmed into the microprocessor memory and they are listed in the following tab...

Страница 9: ... to heat energy therefore extreme care should be taken during servicing H V Inverter warning WARNING FOR INVERTER POWER SUPPLY U GROUNDING Check the High Voltage Inverter Power Supply circuit grounding The high voltage inverter power supply circuit board must have a proper chassis ground The inverter grounding plate must be connected to the chassis If the inverter board is not grounded it will exp...

Страница 10: ...etal object through the lamp holes on the cavity or any holes or gaps because such objects may work as an antenna and cause microwave leakage 3 6 Verification after repair 1 After repair or replacement of parts make sure that the screws of the oven etc are neither loosen or missing Microwave energy might leak if screws are not properly tightened 2 Make sure that all electrical connections are tigh...

Страница 11: ...1 Disconnect connector CN701 on H V Inverter board 2 Remove 1 screw holding escutcheon base and slide the escutcheon base upward slightly 3 Remove all screws holding D P C board on escutcheon base 4 Separate D P C board from tabs on the escutcheon base and remove D P C board To replace membrane key board 5 Use tools such as kinfe etc to lift the edge of escutcheon sheet and peel off escutcheon she...

Страница 12: ...resolder all terminal contacts carefully 4 4 Fan motor 1 Disconnect 2 lead wires from fan motor terminals 2 Remove 2 screws at location on oven attaching orifice assembly 3 Remove orifice assembly from oven assembly 4 Remove fan blade from the fan motor shaft by pulling it straight out 5 Remove 2 screws holding fan motor to orifice 4 5 Door assembly 1 Support the door remove 3 screws holding hinge...

Страница 13: ...t the door onto the hinge NOTE Door alignment is crucial If door is misaligned apply pressure until alignment is achieved NOTE Adjust so that the upper portion of the door will touch firmly to the oven cavity front plate without pushing the door If the door assembly is not mounted properly microwave power may leak from the clearance between the door and oven 9 Tighten 2 mounting screws Be sure the...

Страница 14: ...w turntable motor and reconnecting the 2 lead wires reinstall the motor cover by rotating it around 180 tucking the 2 tabs under the base in the 2 provided slots then screw the single tab to the base using a 4mm 6mm screw 4 7 Steam sensor Only for sensor models 1 Disconnect connector CN2 from digital programmer circuit board 2 Disengage catch hooks on sensor cover C from orifice 3 Remove steam sen...

Страница 15: ...ove the H V lead wire from magnetron terminals 3 Disconnect 2 connectors from CN701 CN702 on H V Inverter U 4 Remove 1 screw holding grounding plate to the base 5 Press 1 encircled locking tab and then slide 4 locking tabs of Inverter bracket at the bottom of the base in direction of arrows 6 Remove 1 screw holding H V Inverter to Inverter bracket 7 Remove 1 screw holding grounding plate to H V In...

Страница 16: ... wires from Inverter Power Supply U primary terminals 2 Connect test probes of ohm meter to the disconnected leads that were connected to Inverter Power Supply U 3 Test the continuity of Monitor Switch with door opened and closed positions using lowest scale of the ohm meter Normal continuity readings should be as follows Door Opened Door Closed 0Ω Close Ω Open 5 3 Magnetron Continuity checks can ...

Страница 17: ...tops operating b During oven operation the input current is approximately 0 5 to 1A If both a and b are OK proceed to test 2 INPUT CURRENT FAILURE CODE Unplug CN703 0 5 to 1A Oven stops in 23 seconds after started Test 2 Continued from Test 1 1 Unplug the oven s AC power supply cord from outlet 2 Unplug 3 pin connector CN701 CN703 remains unplugged 3 Plug in the oven s AC power supply cord into ou...

Страница 18: ...ng the component test procedures 6 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 Check the line voltag...

Страница 19: ...pplied 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 7 2 1 Measurement with the outer panel removed Whenever you replace the magnetron measure for radiation leakage before the outer panel is installed and after all necessary components are replaced or adjusted Special care ...

Страница 20: ...7 4 At least once a year have the radiation monitor checked for calibration by its manufacturer 20 NN SD691S NN ST681S NN SD671S NN ST671S NN ST661S NN ST661B NN ST661W NN ST651B NN ST651W ...

Страница 21: ...ken for the oven s malfunction H97 H98 error code display If 3 times H97 or 2 times H98 exist microwave oven can not be used any more even if the defective parts already be replaced un plug and plug in again How to reset for the service Please take the following steps 1 Plug in oven 2 Press Stop Reset pad button once 3 Open the door 4 Keep pressing Start pad button for more than 2 seconds until bu...

Страница 22: ...t magnetron is not oscillating 1 Magnetron 2 Loose lead wire connector CN703 3 H V Inverter U Oven stops in 10 seconds after pressing Start pad Auto sensor cooking Steam sensor circuit is not functioning 1 Steam sensor 2 DPC 3 Open or loose wiring of sensor terminal from connector CN2 on DPC 2 No display and no operation at all Fuse is blown Most probably loose connection of connectors or door lat...

Страница 23: ... magnetron filament circuit NOTE Large contact resistance will cause lower magnetron filament voltage and cause magnetron to have lower output and or be intermittent 3 Defective high voltage component H V Inverter Power Supply U Magnetron Check high voltage component according to component test procedure and replace if it is defective 4 Open or loose wiring of power relay RY1 5 Defective primary i...

Страница 24: ...s Timer pad once press Start pad once press Power Level pad once For SD691S SD671S models press Timer Clock button twice press Start button once press Power Level button once Program unit for operation H95 H97 H98 H99 appears in display window a short time after Start pad is pressed and there is no microwave oscillation Alternate way to troubleshoot oven with AC Ampere meter used H95 H97 H98 H99 a...

Страница 25: ...1 pin 27 voltages while operation at high power Abnormal IC1 Normal 5V Step2 2 Collector of Q220 voltage Abnormal Q220 and or Q221 Q222 Q225 Normal 0 7V Step3 3 Short circuit between collector of Q220 and emitter of Q225 Still not turn on RY1 RY1 turns on Q220 and or Q221 Q222 Q225 Dark or unclear display 1 Replace display and check operation Normal Display Abnormal IC1 Missing or lighting of unne...

Страница 26: ...s while operation at high power Abnormal IC1 Normal 5V Step2 2 Collector of Q220 voltage Abnormal Q220 and or Q221 Q222 Q225 Normal 0 7V Step3 3 Short circuit between collector of Q220 and emitter of Q225 Still not turn on RY1 RY1 turns on Q220 and or Q221 Q222 Q225 Dark or unclear display 1 Replace display and check operation Normal Display Abnormal IC1 Missing or lighting of unnecessary segment ...

Страница 27: ...tween Inverter and magnetron terminal 2 Between 1 0A and 2 0A Check continuity of D702 in Inverter PCB 1 D702 shorted Replace H V Inverter F606Y8X00AP 2 D702 is OK Replace magnetron Shut off in 3 seconds after Start 1 Less than 0 5A Check open circuit Latch Switch DPC Power Relay and CN701 Replace defective component s or correct switch cables and connectors 8 6 H V INVERTER BOARD MAIN PARTS LIST ...

Страница 28: ...8 7 How to check the semiconductors using an OHM meter 28 NN SD691S NN ST681S NN SD671S NN ST671S NN ST661S NN ST661B NN ST661W NN ST651B NN ST651W ...

Страница 29: ...9 EXPLODED VIEW AND PARTS LIST 9 1 EXPLODED VIEW 29 NN SD691S NN ST681S NN SD671S NN ST671S NN ST661S NN ST661B NN ST661W NN ST651B NN ST651W ...

Страница 30: ... ORIFICE 1 21 J607S4T00AP STEAM SENSOR 1 SD691S ST681S SD671S ST661B ST661W 22 F64499Y00AP SENSOR COVER A 1 SD691S ST681S SD671S ST661B ST661W 24 F64508660AP SENSOR COVER B 1 SD691S ST681S SD671S ST661B ST661W 25 F65439Y00AP SENSOR COVER C 1 SD691S ST681S SD671S ST661B ST661W 26 F61425U30XN MICRO SWITCH 1 PRIMARY INTERLOCK SWITCH 27 F61415U30XN MICRO SWITCH 1 SECONDARY INTERLOCK SWITCH 28 F61456N6...

Страница 31: ...569Y00AP DOOR OPENING LEVER 1 E7 F80375K00AP COOK BUTTON SPRING 1 E8 F803G9M60SBP POP OUT DIAL U 1 SD691S SD671S E9 F80189Y40AP DIAL SUPPORT 1 SD691S SD671S E10 F82989Y40SAP BUTTON 1 SD691S SD671S E11 F82989Y90SAP BUTTON B 1 SD691S SD671S E13 F66167D00AP FLAT CABLE 1 SD691S SD671S E14 F81279Y40AP BACK PANEL 1 SD691S SD671S E15 F00079Y40SCP NAME PLATE 1 SD691S E15 F00079Y90SCP NAME PLATE 1 SD671S E...

Страница 32: ...AP DOOR OPENING BUTTON U 1 ST681S ST671S ST661S E25 F630Y9Y30SCP MEMBRANE SWITCH U 1 ST681S E25 F630Y9Y20BCP MEMBRANE SWITCH U 1 ST671S E25 F630YBF00BCP MEMBRANE SWITCH U 1 ST661S E26 F82569Y00AP DOOR OPENING LEVER 1 E27 F80375K00AP COOK BUTTON SPRING 1 E28 F81279Y20AP BACK PANEL 1 ST681S ST671S ST661S E29 F66139Y20AP BACKSTOP 1 ST681S ST671S ST661S E35 F00079Y30SCP NAME PLATE 1 ST681S E35 F00079Y...

Страница 33: ...ENING BUTTON 1 ST661W ST651W E45 F630Y9Y00BCP MEMBRANE SWITCH U 1 ST661B E45 F630Y9Y00HCP MEMBRANE SWITCH U 1 ST661W E45 F630Y9Y10BCP MEMBRANE SWITCH U 1 ST651B E45 F630Y9Y10HCP MEMBRANE SWITCH U 1 ST651W E46 F82569Y00AP DOOR OPENING LEVER 1 E47 F80375K00AP COOK BUTTON SPRING 1 E48 F81279Y00AP BACK PANEL 1 ST661B ST661W ST651B ST651W E49 F66139Y20AP BACKSTOP 1 ST661B ST661W ST651B ST651W E55 F0007...

Страница 34: ...ST671S ST661S D2 F302A9Y00BAP DOOR A U 1 ST661B D2 F302A9Y00HAP DOOR A U 1 ST661W D2 F302A9Y10BAP DOOR A U 1 ST651B D2 F302A9Y10HCP DOOR A U 1 ST651W D3 F302K9Y00AP DOOR E U 1 D4 F30215G10XN DOOR KEY SPRING 1 D5 F30859Y00AP DOOR C 1 D6 F31459Y00AP DOOR SCREEN A 1 D8 F04114180CP HC LABEL 1 D10 F66629Y40AP GROUNDING METAL 1 SD691S SD671S 34 NN SD691S NN ST681S NN SD671S NN ST671S NN ST661S NN ST661B...

Страница 35: ...t No Part Name Description Pcs Set Remarks W1 F030A9Y00CP LEAD WIRE HARNESS 1 INCLUDING MAGNETRON THERMISTOR W2 F030E9Y00CP H V LEAD WIRE 1 35 NN SD691S NN ST681S NN SD671S NN ST671S NN ST661S NN ST661B NN ST661W NN ST651B NN ST651W ...

Страница 36: ...0HCP PACKING CASE PAPER 1 ST661W P2 F01029Y10BCP PACKING CASE PAPER 1 ST651B P2 F01029Y10HCP PACKING CASE PAPER 1 ST651W P3 F01049Y00AP UPPER FILLER 1 P4 F01059Y00AP LOWER FILLER 1 P5 F01068100XN P E BAG 1 P6 F01078J00XN DOOR SHEET 1 P8 F06015Q00AP COOKING TRAY 1 P9 F01924T00AP SHEET 1 P10 F01569Y40CP CAUTION SHEET 1 P11 F04459Y40SCP OVERLAY 1 SD691S SD671S P11 F04459Y30SCP OVERLAY 1 ST681S P11 F0...

Страница 37: ...10 DIGITAL PROGRAMMER CIRCUIT 10 1 SCHEMATIC DIAGRAM NN SD691S SD671S 37 NN SD691S NN ST681S NN SD671S NN ST671S NN ST661S NN ST661B NN ST661W NN ST651B NN ST651W ...

Страница 38: ...38 NN SD691S NN ST681S NN SD671S NN ST671S NN ST661S NN ST661B NN ST661W NN ST651B NN ST651W ...

Страница 39: ...10 2 SCHEMATIC DIAGRAM EXCEPT NN SD691S NN SD671S 39 NN SD691S NN ST681S NN SD671S NN ST671S NN ST661S NN ST661B NN ST661W NN ST651B NN ST651W ...

Страница 40: ...40 NN SD691S NN ST681S NN SD671S NN ST671S NN ST661S NN ST661B NN ST661W NN ST651B NN ST651W ...

Страница 41: ...11L05R SWITCH 14 RE81 EVEJ1HF2224B REVOLVING ENCODER 1 ZD10 B0BA5R600016 ZENER DIODE 1 ZD180 DZ2J15000L ZENER DIODE 1 10 3 2 NN ST681S ST671S ST661S Ref No Part No Part Name Description Pcs Set Remarks BZ210 L0DDEA000014 BUZZER 1 2 0KHz C10 F2A1H471B575 AL CHEM CAPACITOR 1 470µF 50V C11 F2A1C220B624 AL CHEM CAPACITOR 1 22µF 16V C482 F2A1H1R0B574 AL CHEM CAPACITOR 1 1µF 50V C483 F2A1HR47B574 AL CHE...

Страница 42: ... 1 F67525E20XN DIFFUSION SHEET 1 D40 D41 D189 D190 D221 D227 D228 D230 B0AACK000004 DIODE 8 D10 D13 B0EAKT000025 DIODE 4 IC1 MN69F009AC1 L S I 1 Q10 Q180 B1BAAJ000003 TRANSISTOR 2 D25 D4EAY271A036 ZENER RESISTOR 1 270V RY1 AEBGJQC25F18 POWER RELAY 1 T10 G4C2AAD00006 LOW VOLTAGE TRANSFORMER 1 120V ZD10 B0BA5R600016 ZENER DIODE 1 42 NN SD691S NN ST681S NN SD671S NN ST671S NN ST661S NN ST661B NN ST66...

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Содержание Inverter NN-ST651W

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