Panasonic NN-SE795S Service Manual Download Page 1

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Panasonic

Appliances

Microwave

Oven

(Shanghai) Co., Ltd. 2015.

NN-SE795S
NN-ST785S
NN-ST775S
NN-ST765S
NN-SD765S
NN-SD755S

CPH (CANADA)

Microwave Oven

ORDER NO.PAPMOSH1501004CE

Summary of Contents for NN-SE795S

Page 1: ...Panasonic Appliances Microwave Oven Shanghai Co Ltd 2015 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S CPH CANADA Microwave Oven ORDER NO PAPMOSH1501004CE E1...

Page 2: ...2 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...

Page 3: ...3 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...

Page 4: ...TS AND ADJUSTMENTS 16 6 1 Adjustment of primary interlock switch secondary interlock switch and interlock monitor switch 16 6 2 Measurement of microwave output 16 7 PROCEDURE FOR MEASURING MICROWAVE E...

Page 5: ...1 SCHEMATIC DIAGRAM 5 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...

Page 6: ...er in the DPC to determine 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 featu...

Page 7: ...nd easy way to reheat refrigerated and room temperature foods Simply press the reheat pad There is no need to select power level and cooking time NOTE The Auto Sensor Reheat process is similar as Auto...

Page 8: ...may be HOT due 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 c...

Page 9: ...holes in the unit during operation Never insert a wire nail or any other metal object through the lamp holes on the cavity or any holes or gaps because such objects may work as an antenna and cause m...

Page 10: ...from D P C 2 Remove 1 grounding screw 3 Disconnect connector CN701 on H V Inverter board 4 Remove 1 screw holding escutcheon base and slide the escutcheon base upward slightly 5 Remove all screws hold...

Page 11: ...embly 1 Remove door C from door E by carefully pulling outward starting from upper right hand corner using a flat blade screwdriver 2 Separate door E from tabs on door A and remove door A 3 Open Door...

Page 12: ...After reinstalling the new 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 t...

Page 13: ...t 1 Discharge high voltage charge 2 Remove 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...

Page 14: ...ock Switch 0 Close Open Secondary Interlock Switch 0 Close Open Power Relay RL1 Open Open 5 2 Interlock Monitor Switch 1 Unplug lead wires from Inverter Power Supply U primary terminals 2 Connect test...

Page 15: ...b Press Start button once c Press Power Level button once For SE795S ST785S ST775S ST765S models a Press Clock button once b Press Timer button once c Press Start button once d Press Power Level butt...

Page 16: ...nterlock switches again by following 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 Ho...

Page 17: ...cm spacer supplied with the probe 4 Tap the start button 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...

Page 18: ...7 4 At least once a year have the radiation monitor checked for calibration by its manufacturer 18 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...

Page 19: ...tion manual in order to find the exact cause of any trouble since operator error may be mistaken for the oven s malfunction H97 H98 error code display If 3 times H97 or 2 times H98 exist microwave ove...

Page 20: ...ls from DPC but 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 i...

Page 21: ...voltage circuit especially 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 Defect...

Page 22: ...ton once press Timer button once press Start button once press Power Level button once For NN SD765S SD755S models press Timer Clock button twice press Start button once press Power Level button once...

Page 23: ...ower 1 IC1 pin 8 voltages while operation at high power Abnormal IC1 Normal 5V Step2 2 Collector of Q227 voltage Abnormal Q227 and or Q225 Q226 Q228 Normal 0 7V Step3 3 Short circuit between collector...

Page 24: ...2 Collector of Q227 voltage Abnormal Q227 and or Q225 Q226 Q228 Normal 0 7V Step3 3 Short circuit between collector of Q227 and emitter of Q225 Still not turn on RL1 RL1 turns on Q227 and or Q225 Q226...

Page 25: ...ltage Abnormal Q227 and or Q225 Q226 Normal 0 7V Step3 3 Short circuit between collector of Q227 and emitter of Q225 Still not turn on RL1 RL1 turns on Q227 and or Q225 Q226 Dark or unclear display 1...

Page 26: ...en 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 F606Y9X90AP 2 D702 is OK Replace magnetron Shut off in 3 seconds...

Page 27: ...8 7 How to check the semiconductors using an OHM meter 27 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...

Page 28: ...9 EXPLODED VIEW AND PARTS LIST 9 1 EXPLODED VIEW 28 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...

Page 29: ...GUIDE B 1 21 F41445W00AP ORIFICE 1 22 F64508660AP SENSOR COVER B 1 24 F65434W00AP SENSOR COVER C 1 25 J607S4M00AP STEAM SENSOR 1 26 F612EBP20AP LAMP U 1 LED LAMP INSIDE 27 J61415G10XN MICRO SWITCH 1 P...

Page 30: ...to D P CIRCUIT DU CN5 E5 F8057BP20BAP ESCUTCHEON BASE B 1 SE795S E6 F891PBP20SAP DOOR OPENING BUTTON U 1 SE795S E7 F82565X00AP DOOR OPENING LEVER 1 E8 F80375K00AP COOK BUTTON SPRING 1 E10 F90098N00AP...

Page 31: ...P90SCP ESCUTCHEON BASE U 1 ST785S E24 F6616BP90AP FLAT CABLE 1 ST785S E25 F8298BP90KAP BUTTON 1 ST785S E26 F891PBP90SAP DOOR OPENING BUTTON U 1 ST785S E27 F82565X00AP DOOR OPENING LEVER 1 E28 F80375K0...

Page 32: ...ST775S E43 F800LBQ00SCP ESCUTCHEON BASE U 1 ST775S E45 F8298BQ00KAP BUTTON 1 ST775S E46 F891PBP90SAP DOOR OPENING BUTTON U 1 ST775S E47 F82565X00AP DOOR OPENING LEVER 1 E48 F80375K00AP COOK BUTTON SP...

Page 33: ...765S E63 F800LBQ10BCP ESCUTCHEON BASE U 1 ST765S E66 F891PBP90SAP DOOR OPENING BUTTON U 1 ST765S E67 F82565X00AP DOOR OPENING LEVER 1 E68 F80375K00AP COOK BUTTON SPRING 1 E70 F90098N00AP GROUNDING PAN...

Page 34: ...65S SD755S E105 F8298BE30SAP BUTTON 1 SD765S SD755S E106 F80724W70SAP DOOR OPENING BUTTON U 1 SD765S SD755S E107 F82565X00AP DOOR OPENING LEVER 1 E108 F80375K00AP COOK BUTTON SPRING 1 E110 F90098N00AP...

Page 35: ...2ABP90SCP DOOR A U 1 ST785S ST775S D2 F302ABQ10SCP DOOR A U 1 ST765S D2 F302ABP40SCP DOOR A U 1 SD765S D2 F302ABP60SCP DOOR A U 1 SD755S D3 F302KBF20AP DOOR E U 1 D4 F30216P40AG DOOR KEY SPRING 1 D5 F...

Page 36: ...ALS Ref No Part No Part Name Description Pcs Set Remarks W1 F030ABP20CP LEAD WIRE HARNESS 1 INCLUDING MAGNETRON THERMISTOR W2 F030E8W50AP H V LEAD WIRE 1 36 NN SE795S NN ST785S NN ST775S NN ST765S NN...

Page 37: ...CASE PAPER 1 ST775S P2 F0102BQ10SCP PACKING CASE PAPER 1 ST765S P2 F0102BP40SCP PACKING CASE PAPER 1 SD765S P2 F0102BP60SCP PACKING CASE PAPER 1 SD755S P3 F0104BP80AP UPPER FILLER 1 P4 F0105BP80AP LO...

Page 38: ...10 DIGITAL PROGRAMMER CIRCUIT 10 1 SCHEMATIC DIAGRAM NN SE795S 38 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...

Page 39: ...39 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...

Page 40: ...40 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...

Page 41: ...10 2 SCHEMATIC DIAGRAM NN ST785S ST775S ST765S 41 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...

Page 42: ...42 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...

Page 43: ...10 3 SCHEMATIC DIAGRAM NN SD765S SD755S 43 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...

Page 44: ...44 NN SE795S NN ST785S NN ST775S NN ST765S NN SD765S NN SD755S...

Page 45: ...29 POWER RELAY 1 T10 G4DYA0000681 SWITCH POWER SUPPLY 1 120V FUSE1 K5G402YA0159 FUSE 1 4A 250V SW1 SW23 EVQ11L05R SWITCH 23 10 4 3 NN ST775S Ref No Part No Part Name Description Pcs Set Remarks BZ210...

Page 46: ...AA1 L S I 1 IC10 C0DBGYY05981 IC 1 VOLTAGE STABILIZED IC25 C0DBBYY00073 IC 1 IC480 C0ABBA000230 IC 1 PC25 B3PAA0000302 IC 1 RL1 K6B1AYY00129 POWER RELAY 1 T10 G4DYA0000681 SWITCH POWER SUPPLY 1 120V Z...

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