Panasonic NN-T754SF Service Manual Download Page 44

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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. Make sure the heat sink has enough space (gap) from the

oven. Take special care not to touch any lead wire to the

aluminum heat sink because it is hot.

1. Take off outer panel.

2. Remove screw

4. Disconnect all wires from inverter. Detach turntable wires

from inverter bracket.

3. Remove screw

5. Remove screw and slide oriffice toward you, then lift up and out.

6. Slide four locking of oriffice at the bottom of the base slightly

7. Remove 2 screws holding inverter to inverter bracket.

8. Replace inverter and reassemble to inverter bracket A.

9. Retighten 2 screw

10. Slide and place assembly to the correct location of a completed unit.

11. Push Inverter Assembly until locking tabs are locked.

12. Retighten inverter screws and orifice screws.

13. Reconnet all wires to correct location and redress turntable wires.

Summary of Contents for NN-T754SF

Page 1: ...n is a violation of law NN P794 NN T794SF NN T784SF NN T774SF NN T764SF NN T754SF NN H764 NN S754 NN H744 NN S744 NN H724 APH USA CPH CANADA Microwave Oven Please file and use this specified manual together with the service manual for Model NN S560BF WF ORDER NO SIMMC0001002C3 ORDER NO SIMMC 0401003A1 E1 ...

Page 2: ...2 NN P794 NN T794SF NN T784SF NN T774SF NN T764SF NN T754SF NN H764 NN S754 NN H744 NN S744 NN H724 ...

Page 3: ...3 NN P794 NN T794SF NN T784SF NN T774SF NN T764SF NN T754SF NN H764 NN S754 NN H744 NN S744 NN H724 ...

Page 4: ...diation monitor checked for calibration by its manufacturer 8 4 EXPLODED VIEW AND PARTS LIST 9 4 1 EXPLODED VIEW 9 4 2 PARTS LIST 10 4 3 ESCUTCHEON BASE ASSEMBLY 12 4 4 WIRING MATERIALS 14 4 5 PACKING AND ACCESSORIES 15 4 6 DOOR ASSEMBLY 16 5 DIGITAL PROGRAMMER CIRCUIT 17 5 1 NN P794 APH CPH 17 5 2 NN T794SF APH NN T784SF APH NN T774SF APH 19 5 3 NN T764SF APH NN T754SF APH 21 5 4 NN H764 APH CPH ...

Page 5: ...1 SCHEMATIC DIAGRAM 1 1 APH 5 NN P794 NN T794SF NN T784SF NN T774SF NN T764SF NN T754SF NN H764 NN S754 NN H744 NN S744 NN H724 ...

Page 6: ...1 2 CPH 6 NN P794 NN T794SF NN T784SF NN T774SF NN T764SF NN T754SF NN H764 NN S754 NN H744 NN S744 NN H724 ...

Page 7: ... 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 voltage under load Low voltage will lower the magnetro...

Page 8: ... set the timer and with the magnetron oscillating measure the leakage by holding the probe perpendicular to the surface being measured 3 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 should be taken in measuring around the magn...

Page 9: ...4 EXPLODED VIEW AND PARTS LIST 4 1 EXPLODED VIEW 9 NN P794 NN T794SF NN T784SF NN T774SF NN T764SF NN T754SF NN H764 NN S754 NN H744 NN S744 NN H724 ...

Page 10: ...AP CABINET BODY U 1 T774SF APH 6 F110D5K00BAP CABINET BODY U 1 H7 4BF APH CPH S7 4BF APH 6 F110D5X20HCP CABINET BODY U 1 H7 4WF APH CPH S7 4WF APH 7 F200A5X20AP OVEN U 1 P794 APH CPH T794SF APH T784SF APH T774SF APH T764SF APH H7 4 APH CPH 7 F200A5X30AP OVEN U 1 T754SF APH S7 4 APH 8 F20555K00AP COVER 1 9 F21315Y00AP PULLY SHAFT 1 10 F2177 F80 WASHER 1 11 F290D9330AP ROLLER RING U 1 12 F3020 1200 ...

Page 11: ...FOR MAGNETRON 41 F90804W00AP CANOE CLIP 1 FOR COVER 42 XTTANE4T12A0 SCREW 5 FOR CABINET BODY 43 XTTFA4 8BFZ SCREW 2 FOR CABINET BODY SIDE P794BF H7 4BF S7 4BF 43 XTTFA4 8BCR SCREW 2 FOR CABINET BODY SIDE P794SF WF T7 4SF APH H7 4WF S7 4WF 44 XTWAFE4 8S SCREW 1 FOR THERMAL CUTOUT 45 J692Y4T00CPR NOISE FILTER 1 CPH 46 F03346J50AP MENU LABEL 1 H744BF WF APH 46 F03346J70AP MENU LABEL 1 H724BF WF APH 4...

Page 12: ...MEMBRANE SWITCH U 1 H724WF APH E3 F630Y6J00BCP MEMBRANE SWITCH U 1 H764BF CPH E3 F630Y6J00HCP MEMBRANE SWITCH U 1 H764WF CPH E3 F630Y6J30BAP MEMBRANE SWITCH U 1 S754BF APH E3 F630Y6J30HAP MEMBRANE SWITCH U 1 S754WF APH E3 F630Y6J60BAP MEMBRANE SWITCH U 1 S744BF APH E3 F630Y6J60HAP MEMBRANE SWITCH U 1 S744WF APH E4 F80346J00BAP ESCUTCHEON BASE 1 H7 4BF APH CPH S7 4BF APH E4 F80346J00HAP ESCUTCHEON ...

Page 13: ...T764SF APH T754SF APH E14 F81274W70AP BACK PANEL 1 T764SF APH T754SF APH E15 F00076H60SAP NAME PLATE 1 P794SF APH E15 F00076H60BAP NAME PLATE 1 P794BF APH E15 F00076H60HAP NAME PLATE 1 P794WF APH E15 F00076H60SCP NAME PLATE 1 P794SF CPH E15 F00076H60BCP NAME PLATE 1 P794BF CPH E15 F00076H60HCP NAME PLATE 1 P794WF CPH E15 F00076H70SAP NAME PLATE 1 T794SF APH E15 F00076H80SAP NAME PLATE 1 T784SF APH...

Page 14: ...BUTTON 1 P794BF APH CPH E20 F82986H60HAP BUTTON 1 P794WF APH CPH E20 F82985X00AP BUTTON 1 T794SF APH T784SF APH T774SF APH E21 F90095X00AP GROUNDING PANEL 1 P794 APH CPH T794SF APH T784SF APH T774SF APH E22 F891P6H60SAP DOOR OPENING BUTTON 1 P794SF APH CPH E22 F891P6H60BAP DOOR OPENING BUTTON 1 P794BF APH CPH E22 F891P6H60HAP DOOR OPENING BUTTON 1 P794WF APH CPH E22 F80724W70SAP DOOR OPENING BUTTO...

Page 15: ...P PACKING CASE PAPER 1 H764WF APH P2 F01026J50BAP PACKING CASE PAPER 1 H744BF APH P2 F01026J50HAP PACKING CASE PAPER 1 H744WF APH P2 F01026J70BAP PACKING CASE PAPER 1 H724BF APH P2 F01026J70HAP PACKING CASE PAPER 1 H724WF APH P2 F01026J00BCP PACKING CASE PAPER 1 H764BF CPH P2 F01026J00HCP PACKING CASE PAPER 1 H764WF CPH P2 F01026J30BAP PACKING CASE PAPER 1 S754BF APH P2 F01026J30HAP PACKING CASE P...

Page 16: ...K4W00AP DOOR E U 1 D4 F30215G10XN DOOR KEY SPRING 1 D5 F30854W00AP DOOR C 1 D6 F31454W00AP DOOR SCREEN A 1 D7 F31466H60SAP DOOR SCREEN B 1 P794 APH CPH D7 F31465X00SAP DOOR SCREEN B 1 T794SF APH T774SF APH T764SF APH T754SF APH D7 F31465X70BAP DOOR SCREEN B 1 T784SF APH D7 F31466J00BAP DOOR SCREEN B 1 H7 4BF APH CPH S7 4BF APH D7 F31466J00HAP DOOR SCREEN B 1 H7 4WF APH CPH S7 4WF APH D8 F02459660A...

Page 17: ...5 DIGITAL PROGRAMMER CIRCUIT 5 1 NN P794 APH CPH 17 NN P794 NN T794SF NN T784SF NN T774SF NN T764SF NN T754SF NN H764 NN S754 NN H744 NN S744 NN H724 ...

Page 18: ...18 NN P794 NN T794SF NN T784SF NN T774SF NN T764SF NN T754SF NN H764 NN S754 NN H744 NN S744 NN H724 ...

Page 19: ...5 2 NN T794SF APH NN T784SF APH NN T774SF APH 19 NN P794 NN T794SF NN T784SF NN T774SF NN T764SF NN T754SF NN H764 NN S754 NN H744 NN S744 NN H724 ...

Page 20: ...20 NN P794 NN T794SF NN T784SF NN T774SF NN T764SF NN T754SF NN H764 NN S754 NN H744 NN S744 NN H724 ...

Page 21: ...5 3 NN T764SF APH NN T754SF APH 21 NN P794 NN T794SF NN T784SF NN T774SF NN T764SF NN T754SF NN H764 NN S754 NN H744 NN S744 NN H724 ...

Page 22: ...22 NN P794 NN T794SF NN T784SF NN T774SF NN T764SF NN T754SF NN H764 NN S754 NN H744 NN S744 NN H724 ...

Page 23: ...5 4 NN H764 APH CPH S754BF WF APH 23 NN P794 NN T794SF NN T784SF NN T774SF NN T764SF NN T754SF NN H764 NN S754 NN H744 NN S744 NN H724 ...

Page 24: ...24 NN P794 NN T794SF NN T784SF NN T774SF NN T764SF NN T754SF NN H764 NN S754 NN H744 NN S744 NN H724 ...

Page 25: ...5 5 NN H744BF WF APH H724BF WF APH S744BF WF APH 25 NN P794 NN T794SF NN T784SF NN T774SF NN T764SF NN T754SF NN H764 NN S754 NN H744 NN S744 NN H724 ...

Page 26: ...26 NN P794 NN T794SF NN T784SF NN T774SF NN T764SF NN T754SF NN H764 NN S754 NN H744 NN S744 NN H724 ...

Page 27: ...H7 4 APH CPH S7 4 APH CX320 AEFOS800MG06 CERAMIC RESONATOR 1 8 0MHz DISP1 AEDDHJ5W00AP LCD 1 P794 APH CPH T794 T784 T774SF APH DISP1 AEDDHJ4M00AP LCD 1 T764 T754SF APH H764 APH CPH S754 APH DISP1 AEDDHJ5U20XN LCD 1 H744 APH H724 APH S744 APH DISP1 HOLDER F66175W00AP LCD HOLDER 1 P794 APH CPH T794 T784 T774SF APH DISP1 HOLDER F66175E40XN LCD HOLDER 1 T764 T754SF APH H764 APH CPH S754 APH DISP1 HOLD...

Page 28: ...RJ06J433R CHIP RESISTOR 1 43K 1 10W 5 P794 APH CPH T794 T784 T774 T764SF APH H7 4 APH CPH R331 R341 R441 AERJ06J471R CHIP RESISTOR 3 470Ω Ω Ω Ω 1 10W 5 R227 R496 AERJ06J471R CHIP RESISTOR 2 470Ω Ω Ω Ω 1 10W 5 P794 APH CPH T794 T784 T774SF APH R360 AERJ06J472R CHIP RESISTOR 1 4 7K 1 10W 5 T7 4SF APH H7 4 APH CPH S7 4 APH R480 R481 AERJ06J472R CHIP RESISTOR 2 4 7K 1 10W 5 P794 APH CPH T794 T784 T774...

Page 29: ...W O 15 386mm D O 8 225mm H 26 5 lbs 12 0kg 1370W 1370W 1370W 1370W 1300W 1300W 1100W 1000W NN S560BF WF NN S550BF WF NN S540BF WF NN L530BF WF Specifications Power Source Power Requirement Output IEC705 88 Microwave Frequency Timer Outside Dimensions Oven Cavity Dimensions Weight Output power IEC705 88 Test Procedure Specifications subject to change without notice Specifications for CPH Model 120V...

Page 30: ...es 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 Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death 1 This produc...

Page 31: ... remain in circuit 2 Do not touch aluminum heat sink because it is very hot in high voltage and also very hot in high heat energy 3 Do not try to adjust or tamper with preset volume on the Inverter board because it is very dangerous to adjust without proper test equipment 4 Do not test oven while Inverter grounding plate or screws are loose It is very dangerous to operate H V Inverter Circuit U wi...

Page 32: ...NN S540WF NN S510WF NN S520WF NN S530WF NN S560WF NN S560 CPH NN S560 APH 1 2 5 7 11 16 17 3 8 6 12 9 NN S550 7 1 2 4b b b b b 17 3 6 16 11 5 8 10 k lb oz Popcorn Inverter Turbo Defrost lb k Auto Reheat 1 4servings Inverter Auto Cooking Power Level 10 Levels Quick Min Start Stop Reset 1 2 3 6 5 4 7 8 9 Clock 0 Timer Froz Veg 11 Froz Entrées 8 Breakfast 1 3 Dinner 6 7 FreshVeg 10 Serving Weight Ric...

Page 33: ...ss Pad 13 Cooking Guide 14 Auto Cook Pad 15 Serving Weight Pad Before cooking One tap clears your instructions During cooking One tap temporarily stops the cooking process Another tap cancels all your instructions and time of day or colon appears on the display window 17 Stop Reset Pad One tap allows oven to begin functioning If door is opened or STOP RESET Pad is pressed once during oven operatio...

Page 34: ...5 times and shuts off 4 Inverter Auto Cooking OPERATION SCROLL DISPLAY 15 00 2 Press Power Level pad once to set High power 1st stage 3 Set for 5 seconds by pressing Number pads 5 sec 5 4 Press Power Level pad 4 times to set Medium power 2nd stage 5 Set for 1 minute by pressing Number pads 1 min 1 0 0 6 Press Start pad 7 When 1st stage cooking time has elapsed Oven beeps twice and automatically sw...

Page 35: ...ime appears in the display window NOTE Cooking time will vary depending on the water temperature the shape of the beaker or the Power source Voltage 4 When cooking time has elapsed Oven beeps 5 times and shuts off 2 Time of day or colon if set appears in the display 7 Sensor Cooking NN S560WFAPH CPH S560BFAPH CPH OPERATION SCROLL DISPLAY 1 Press Auto Reheat pad twice for two servings 2 Press Start...

Page 36: ...SCHEMATIC DIAGRAM APH 7 SCHEMATIC DIAGRAM APH ...

Page 37: ... 8 SCHEMATIC DIAGRAM CPH SCHEMATIC DIAGRAM CPH ...

Page 38: ...es the High voltage transformer to increase up to 2 000V AC and approximately 3V AC by means of transformer 4 Then the half wave doubler voltage rectifier circuit consisting of the HV diodes and Capacitors generates the necessary 4 000V DC needed for the magnetron 5 Output power of the magnetron tube is always monitored by the signal output from the current transformer built into the inverter ciru...

Page 39: ...ount of time it takes the microwave oven to switch to T2 time after the 10 second period 3 T2 time When the steam escapes from the cooking container placed in the oven the steam sensor detects it and the microprocessor cal culates the balance of cooking time This T2 time is then shown in the display and begins counting down Balance of cooking time T2 time The balance of cooking time which is calle...

Page 40: ...ning about the electric charge in the high voltage 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 h...

Page 41: ...ED TO RADIATION FROM THE MICROWAVE GENERATOR OR OTHER PARTS CONDUCTING MICROWAVE ENERGY IMPORTANT NOTICE 1 The following components have potentials above 250V while the appliance is operating h Magnetron h High voltage transformer Located on Inverter U h High voltage diodes Located on Inverter U h High voltage capacitors Located on Inverter U Pay special attention on these portions 2 When the appl...

Page 42: ...escutcheon base is cleaned sufficiently so that any problems shorted contacts or uneven surface can be avoided 3 Alignment position of membrane key board is as follows Membrane key board Right and upper edges Escutcheon sheet Right and upper edges 3 Low voltage transformer and or power relays RY1 RY2 NOTE Be sure to ground any static electric charge built up on your body before handling the DPC A ...

Page 43: ...emble install and perform microwave leakage test 6 Turntable motor A Remove the motor cover by breaking off at the 8 spots indicated by arrows with a cutter or the like See Figure NOTE After breaking off the motor cover make sure that cut off portions are properly trimmed off or bend to inside so that no sharp edge will expose to outside B Disconnect 2 lead wires connected to the turntable motor C...

Page 44: ...el 2 Remove screw 4 Disconnect all wires from inverter Detach turntable wires from inverter bracket 3 Remove screw 5 Remove screw and slide oriffice toward you then lift up and out 6 Slide four locking of oriffice at the bottom of the base slightly 7 Remove 2 screws holding inverter to inverter bracket 8 Replace inverter and reassemble to inverter bracket A 9 Retighten 2 screw 10 Slide and place a...

Page 45: ...the leads B A continuity check across magnetron filament terminals should indicate one ohm or less C A continuity check between each filament terminal and magnetron case should read open ANTENNA COOLING FIN MAGNETRON CASE HIGHEST OHM SCALE FILAMENT TERMINALS 04 031M 0Ω 1Ω RX1 SCALE ANTENNA GASKET HEAT SINK CHOKE COIL CURRENT TRANSFORMER RESISTOR SAND BAR PCB FILM CAPACITORS VARISTOR PRIMARY WINDIN...

Page 46: ...50 cc in the oven 2 Tap Sensor Reheat pad 3 Tap Start Pad 4 Steam Sensor detects steam about 1 5 to 4 minutes after the Start Pad is tapped 5 T1 time cooking automatically switches to remaining time cooking T2 6 The remaining cooking time T2 appears in display window If the following cooking time appears Steam Sensor function is normal T2 TIME 8 Sec 23 Sec T1 TIME 1 Min 30 Sec 4 Min Remaining cook...

Page 47: ...he magnetron output Take the temperature readings and heating time as accurately as possible A Fill the beaker with exactly one liter of tap water Stir the water using the thermometer and record the beaker s temperature recorded as T1 B Place the beaker on the center of glass cook plate Set the oven for High power and heat it for exactly one minute C Stir the water again and read the temperature o...

Page 48: ...C 68O 9 O F water in a beaker which is graduated to 600cc and place in the center of the oven B Set the radiation monitor to 2450MHz and use it following the manufacturer s recommended test procedure to assure correct results C When measuring the leakage always use the 2 inch 5cm spacer supplied with the probe D Tap the start pad or set the timer and with the magnetron oscillating measure the leak...

Page 49: ... magnetron to lower output and or be in termittent 3 Defective high voltage component HV Inverter Power Supply u Magnetron 4 Open or loose wiring of power relay B RY 1 5 Defective primary latch switch 6 Defective DPC or power relay B RY 1 1 Open or loose wiring of secondary latch switch 2 Off alignment of secondary latch switch 3 Defective secondary latch switch 1 Decrease in power source voltage ...

Page 50: ...ter 10 seconds elapses on the Auto sensor cooking mode 1 Defective DPC 1 Loose fan and fan motor 1 Open or loose wiring of turntable motor 2 Defective turntable motor 1 Open or loose wiring of primary and secondary latch switch 2 Operation of thermal cutout 1 Open or loose wiring of sensor terminal from DPC 2 Open steam sensor 3 Defective DPC Check tighten screws on escutcheon base bracket D P C b...

Page 51: ...agnetron DPC board Loose relay wiring DPC board unplug CN701 and measure at lead wire harness side refer to componenet test procedures unplug CN702 and measure at lead wire harness side AC3V OK AC 120V Open OV OV NOTE After check unplug unit to reset to normal operation mode Alternate way to troubleshoot oven with AC Ampere meter used H97 H98 H99 appears in display window a short time after start ...

Page 52: ...ough the program has been set and the start pad is tapped No microwave oscillation at any power setting Dark or unclear display Missing or lighting of unnecessary segment H97 H98 appears in window and oven stops operation Program High power for 1 minute and conduct following test quickly unless H97 H98 appears and oven stops RESULT Abnormal Normal Abnormal Normal Abnormal Normal 5V Still not turn ...

Page 53: ...EXPLODED VIEW AND PARTS LIST 24 1 2 3 4 5 6 7 38 8 16 17 18 19 26 34 23 32 31 35 29 30 37 20 40 22 21 42 11 13 14 15 24 5 28 10 42 42 42 9 33 36 39 12 27 ...

Page 54: ...4T40HCP F00074T50HCP F10014T00AP F10084T00AP F110D4T00BAP F110D4T00HAP F201A4T00AP F201A4T10AP F20554T00AP F21314T00AP ANE2177 F80 B290D9330AP B3020 1480 J3097 1480 B3136 1480 B3137 1480 B3138 1480 CAUTION LABEL CAUTION LABEL NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE BASE RUBB...

Page 55: ...UIDE A ORIFICE EXHAUST GUIDE B STEAM SENSOR SENSOR BRACKET C INCANDESCENT LAMP U MICROSWITCH B MICROSWITCH A THERMAL CUTOUT THERMAL CUTOUT MOUNT MICROSWITCH C H V INVERTER U MAGNETRON MAGNETRON MAGNETRON MAGNETRON FUSE FUSE HOLDER GROUNDING PLATE TURNTABLE MOTOR AC CORD W PLUG AC CORD W PLUG NOISE FILTER U SCREW SCREW SCREW SCREW 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 AC120V SIN...

Page 56: ...00BAP F30014T00HAP F302K4T00AP B30214000AP F30854T00AP F31454T00AP F31464T00BAP F31464T00HAP B02454180AP B04114180CP DOOR KEY A DOOR A DOOR A DOOR E U DOOR KEY SPRING DOOR C DOOR SCREEN A DOOR SCBEEN B DOOR SCREEN B DHHS LABEL CSA LABEL 1 1 1 1 1 1 1 1 1 1 1 BF PH WF PH BF PH WF PH FAPH FCPH D5 D4 D1 D8 D6 D3 D7 D2 S 4T0 ...

Page 57: ...H U MEMBRANE SWITCH U MEMBRANE SWITCH U MEMBRANE SWITCH U MEMBRANE SWITCH U MEMBRANE SWITCH U MEMBRANE SWITCH U MEMBRANE SWITCH U ESCUTCHEON BASE ESCUTCHEON BASE ESCUTCHEON BASE ESCUTCHEON BASE DISPLAY DISPLAY TUBE COVER RUBBER CONNECTOR 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 S560BFAPH S560WFAPH RTL W COMPONENT S560BFCPH S560WFCPH RTL W COMPONENT S550BFAPH S550WFAPH RTL W COMPONENT ...

Page 58: ...ACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER UPPER FILLER LOWER FILLER P E BAG DOOR SHEET TRAY STYROL COOKING TRAY 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

Page 59: ...ERIAL Ref No W1 W1 W2 W2 Part No Part name Description Pcs set Remarks F030A4T20AP F030A4T00CP F030E4T00AP F030E4T00CP LEAD WIRE HARNESS LEAD WIRE HARNESS H V LEAD WIRE H V LEAD WIRE 1 1 1 1 APH CPH APH CPH S 4T0 AND ...

Page 60: ... DIODE SI 4 D25 AERZ271NS10D VARISTOR 1 D26 27 AERZB00NS10D VARISTOR 2 IC1 MN101C487DB1 L S I 1 IC220 AN6747B IC 1 Q181 Q40 Q220 2SC2412KT146 TRANSISTOR 3 Q10 Q180 2SD1859TV2Q TRANSISTOR 2 R100 R101 R102 R221 AERJ3GSYJ103 RESISTOR 4 10K 1 16W 50 R40 R41 R42 R43 44 R45 AERJ3GSYJ104 RESISTOR 9 100K 1 16W 50 R46 R47 R48 R49 AERJ3GSYJ154 RESISTOR 1 150K 1 16W 5 R220 AERJ3GSYJ222 RESISTOR 1 2 2K 1 16W ...

Page 61: ...OR 3 Q10 Q180 2SD1859TV2Q TRANSISTOR 2 R100 R101 R102 R221 AERJ3GSYJ103 RESISTOR 4 10K 1 16W 5 R40 R41 R42 R43 R44 R45 AERJ3GSYJ104 RESISTOR 9 100K 1 16W 5 R46 R47 R48 R49 AERJ3GSYJ154 RESISTOR 1 150K 1 16W 5 R220 AERJ3GSYJ222 RESISTOR 1 2 2K 1 16W 5 R310 AERJ3GSYJ332 RESISTOR 1 3 3K 1 16W 5 R330 AERJ3GSYJ333 RESISTOR 1 3 3K 1 16W 5 AERJ3GSYJ360 RESISTOR 1 36Ω 1 4W 5 RD16ST102J RESISTOR 1 1K 1 4W ...

Page 62: ... 33 ...

Page 63: ... 34 ...

Page 64: ... E2 P1 P2 P2 P2 P2 F00074T20BRP F00074T20HRP F00074T70BRP F00074T70HRP F603L4T70RP F603Y4T20BAP F603Y4T20HAP F603Y4T70BRP F603Y4T70HRP F00034T20RP F01024T20BAP F01024T20HAP F01024T70BRP F01024T70HRP NAME PLATE NAME PLATE NAME PLATE NAME PLATE D P CIRCUIT MEMBRANE SWITCH U MEMBRANE SWITCH U MEMBRANE SWITCH U MEMBRANE SWITCH U INSTRUCTION MANUAL PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAP...

Page 65: ...W O 15 386mm D O 8 225mm H 26 5 lbs 12 0kg 1370W 1370W 1370W 1370W 1300W 1300W 1100W 1000W NN S560BF WF NN S550BF WF NN S540BF WF NN L530BF WF Specifications Power Source Power Requirement Output IEC705 88 Microwave Frequency Timer Outside Dimensions Oven Cavity Dimensions Weight Output power IEC705 88 Test Procedure Specifications subject to change without notice Specifications for CPH Model 120V...

Page 66: ...es 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 Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death 1 This produc...

Page 67: ... remain in circuit 2 Do not touch aluminum heat sink because it is very hot in high voltage and also very hot in high heat energy 3 Do not try to adjust or tamper with preset volume on the Inverter board because it is very dangerous to adjust without proper test equipment 4 Do not test oven while Inverter grounding plate or screws are loose It is very dangerous to operate H V Inverter Circuit U wi...

Page 68: ...NN S540WF NN S510WF NN S520WF NN S530WF NN S560WF NN S560 CPH NN S560 APH 1 2 5 7 11 16 17 3 8 6 12 9 NN S550 7 1 2 4b b b b b 17 3 6 16 11 5 8 10 k lb oz Popcorn Inverter Turbo Defrost lb k Auto Reheat 1 4servings Inverter Auto Cooking Power Level 10 Levels Quick Min Start Stop Reset 1 2 3 6 5 4 7 8 9 Clock 0 Timer Froz Veg 11 Froz Entrées 8 Breakfast 1 3 Dinner 6 7 FreshVeg 10 Serving Weight Ric...

Page 69: ...ss Pad 13 Cooking Guide 14 Auto Cook Pad 15 Serving Weight Pad Before cooking One tap clears your instructions During cooking One tap temporarily stops the cooking process Another tap cancels all your instructions and time of day or colon appears on the display window 17 Stop Reset Pad One tap allows oven to begin functioning If door is opened or STOP RESET Pad is pressed once during oven operatio...

Page 70: ...5 times and shuts off 4 Inverter Auto Cooking OPERATION SCROLL DISPLAY 15 00 2 Press Power Level pad once to set High power 1st stage 3 Set for 5 seconds by pressing Number pads 5 sec 5 4 Press Power Level pad 4 times to set Medium power 2nd stage 5 Set for 1 minute by pressing Number pads 1 min 1 0 0 6 Press Start pad 7 When 1st stage cooking time has elapsed Oven beeps twice and automatically sw...

Page 71: ...ime appears in the display window NOTE Cooking time will vary depending on the water temperature the shape of the beaker or the Power source Voltage 4 When cooking time has elapsed Oven beeps 5 times and shuts off 2 Time of day or colon if set appears in the display 7 Sensor Cooking NN S560WFAPH CPH S560BFAPH CPH OPERATION SCROLL DISPLAY 1 Press Auto Reheat pad twice for two servings 2 Press Start...

Page 72: ...SCHEMATIC DIAGRAM APH 7 SCHEMATIC DIAGRAM APH ...

Page 73: ... 8 SCHEMATIC DIAGRAM CPH SCHEMATIC DIAGRAM CPH ...

Page 74: ...es the High voltage transformer to increase up to 2 000V AC and approximately 3V AC by means of transformer 4 Then the half wave doubler voltage rectifier circuit consisting of the HV diodes and Capacitors generates the necessary 4 000V DC needed for the magnetron 5 Output power of the magnetron tube is always monitored by the signal output from the current transformer built into the inverter ciru...

Page 75: ...ount of time it takes the microwave oven to switch to T2 time after the 10 second period 3 T2 time When the steam escapes from the cooking container placed in the oven the steam sensor detects it and the microprocessor cal culates the balance of cooking time This T2 time is then shown in the display and begins counting down Balance of cooking time T2 time The balance of cooking time which is calle...

Page 76: ...ning about the electric charge in the high voltage 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 h...

Page 77: ...ED TO RADIATION FROM THE MICROWAVE GENERATOR OR OTHER PARTS CONDUCTING MICROWAVE ENERGY IMPORTANT NOTICE 1 The following components have potentials above 250V while the appliance is operating h Magnetron h High voltage transformer Located on Inverter U h High voltage diodes Located on Inverter U h High voltage capacitors Located on Inverter U Pay special attention on these portions 2 When the appl...

Page 78: ...escutcheon base is cleaned sufficiently so that any problems shorted contacts or uneven surface can be avoided 3 Alignment position of membrane key board is as follows Membrane key board Right and upper edges Escutcheon sheet Right and upper edges 3 Low voltage transformer and or power relays RY1 RY2 NOTE Be sure to ground any static electric charge built up on your body before handling the DPC A ...

Page 79: ...emble install and perform microwave leakage test 6 Turntable motor A Remove the motor cover by breaking off at the 8 spots indicated by arrows with a cutter or the like See Figure NOTE After breaking off the motor cover make sure that cut off portions are properly trimmed off or bend to inside so that no sharp edge will expose to outside B Disconnect 2 lead wires connected to the turntable motor C...

Page 80: ...el 2 Remove screw 4 Disconnect all wires from inverter Detach turntable wires from inverter bracket 3 Remove screw 5 Remove screw and slide oriffice toward you then lift up and out 6 Slide four locking of oriffice at the bottom of the base slightly 7 Remove 2 screws holding inverter to inverter bracket 8 Replace inverter and reassemble to inverter bracket A 9 Retighten 2 screw 10 Slide and place a...

Page 81: ...the leads B A continuity check across magnetron filament terminals should indicate one ohm or less C A continuity check between each filament terminal and magnetron case should read open ANTENNA COOLING FIN MAGNETRON CASE HIGHEST OHM SCALE FILAMENT TERMINALS 04 031M 0Ω 1Ω RX1 SCALE ANTENNA GASKET HEAT SINK CHOKE COIL CURRENT TRANSFORMER RESISTOR SAND BAR PCB FILM CAPACITORS VARISTOR PRIMARY WINDIN...

Page 82: ...50 cc in the oven 2 Tap Sensor Reheat pad 3 Tap Start Pad 4 Steam Sensor detects steam about 1 5 to 4 minutes after the Start Pad is tapped 5 T1 time cooking automatically switches to remaining time cooking T2 6 The remaining cooking time T2 appears in display window If the following cooking time appears Steam Sensor function is normal T2 TIME 8 Sec 23 Sec T1 TIME 1 Min 30 Sec 4 Min Remaining cook...

Page 83: ...he magnetron output Take the temperature readings and heating time as accurately as possible A Fill the beaker with exactly one liter of tap water Stir the water using the thermometer and record the beaker s temperature recorded as T1 B Place the beaker on the center of glass cook plate Set the oven for High power and heat it for exactly one minute C Stir the water again and read the temperature o...

Page 84: ...C 68O 9 O F water in a beaker which is graduated to 600cc and place in the center of the oven B Set the radiation monitor to 2450MHz and use it following the manufacturer s recommended test procedure to assure correct results C When measuring the leakage always use the 2 inch 5cm spacer supplied with the probe D Tap the start pad or set the timer and with the magnetron oscillating measure the leak...

Page 85: ... magnetron to lower output and or be in termittent 3 Defective high voltage component HV Inverter Power Supply u Magnetron 4 Open or loose wiring of power relay B RY 1 5 Defective primary latch switch 6 Defective DPC or power relay B RY 1 1 Open or loose wiring of secondary latch switch 2 Off alignment of secondary latch switch 3 Defective secondary latch switch 1 Decrease in power source voltage ...

Page 86: ...ter 10 seconds elapses on the Auto sensor cooking mode 1 Defective DPC 1 Loose fan and fan motor 1 Open or loose wiring of turntable motor 2 Defective turntable motor 1 Open or loose wiring of primary and secondary latch switch 2 Operation of thermal cutout 1 Open or loose wiring of sensor terminal from DPC 2 Open steam sensor 3 Defective DPC Check tighten screws on escutcheon base bracket D P C b...

Page 87: ...agnetron DPC board Loose relay wiring DPC board unplug CN701 and measure at lead wire harness side refer to componenet test procedures unplug CN702 and measure at lead wire harness side AC3V OK AC 120V Open OV OV NOTE After check unplug unit to reset to normal operation mode Alternate way to troubleshoot oven with AC Ampere meter used H97 H98 H99 appears in display window a short time after start ...

Page 88: ...ough the program has been set and the start pad is tapped No microwave oscillation at any power setting Dark or unclear display Missing or lighting of unnecessary segment H97 H98 appears in window and oven stops operation Program High power for 1 minute and conduct following test quickly unless H97 H98 appears and oven stops RESULT Abnormal Normal Abnormal Normal Abnormal Normal 5V Still not turn ...

Page 89: ...EXPLODED VIEW AND PARTS LIST 24 1 2 3 4 5 6 7 38 8 16 17 18 19 26 34 23 32 31 35 29 30 37 20 40 22 21 42 11 13 14 15 24 5 28 10 42 42 42 9 33 36 39 12 27 ...

Page 90: ...4T40HCP F00074T50HCP F10014T00AP F10084T00AP F110D4T00BAP F110D4T00HAP F201A4T00AP F201A4T10AP F20554T00AP F21314T00AP ANE2177 F80 B290D9330AP B3020 1480 J3097 1480 B3136 1480 B3137 1480 B3138 1480 CAUTION LABEL CAUTION LABEL NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE NAME PLATE BASE RUBB...

Page 91: ...UIDE A ORIFICE EXHAUST GUIDE B STEAM SENSOR SENSOR BRACKET C INCANDESCENT LAMP U MICROSWITCH B MICROSWITCH A THERMAL CUTOUT THERMAL CUTOUT MOUNT MICROSWITCH C H V INVERTER U MAGNETRON MAGNETRON MAGNETRON MAGNETRON FUSE FUSE HOLDER GROUNDING PLATE TURNTABLE MOTOR AC CORD W PLUG AC CORD W PLUG NOISE FILTER U SCREW SCREW SCREW SCREW 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 AC120V SIN...

Page 92: ...00BAP F30014T00HAP F302K4T00AP B30214000AP F30854T00AP F31454T00AP F31464T00BAP F31464T00HAP B02454180AP B04114180CP DOOR KEY A DOOR A DOOR A DOOR E U DOOR KEY SPRING DOOR C DOOR SCREEN A DOOR SCBEEN B DOOR SCREEN B DHHS LABEL CSA LABEL 1 1 1 1 1 1 1 1 1 1 1 BF PH WF PH BF PH WF PH FAPH FCPH D5 D4 D1 D8 D6 D3 D7 D2 S 4T0 ...

Page 93: ...H U MEMBRANE SWITCH U MEMBRANE SWITCH U MEMBRANE SWITCH U MEMBRANE SWITCH U MEMBRANE SWITCH U MEMBRANE SWITCH U MEMBRANE SWITCH U ESCUTCHEON BASE ESCUTCHEON BASE ESCUTCHEON BASE ESCUTCHEON BASE DISPLAY DISPLAY TUBE COVER RUBBER CONNECTOR 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 S560BFAPH S560WFAPH RTL W COMPONENT S560BFCPH S560WFCPH RTL W COMPONENT S550BFAPH S550WFAPH RTL W COMPONENT ...

Page 94: ...ACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAPER UPPER FILLER LOWER FILLER P E BAG DOOR SHEET TRAY STYROL COOKING TRAY 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

Page 95: ...ERIAL Ref No W1 W1 W2 W2 Part No Part name Description Pcs set Remarks F030A4T20AP F030A4T00CP F030E4T00AP F030E4T00CP LEAD WIRE HARNESS LEAD WIRE HARNESS H V LEAD WIRE H V LEAD WIRE 1 1 1 1 APH CPH APH CPH S 4T0 AND ...

Page 96: ... DIODE SI 4 D25 AERZ271NS10D VARISTOR 1 D26 27 AERZB00NS10D VARISTOR 2 IC1 MN101C487DB1 L S I 1 IC220 AN6747B IC 1 Q181 Q40 Q220 2SC2412KT146 TRANSISTOR 3 Q10 Q180 2SD1859TV2Q TRANSISTOR 2 R100 R101 R102 R221 AERJ3GSYJ103 RESISTOR 4 10K 1 16W 50 R40 R41 R42 R43 44 R45 AERJ3GSYJ104 RESISTOR 9 100K 1 16W 50 R46 R47 R48 R49 AERJ3GSYJ154 RESISTOR 1 150K 1 16W 5 R220 AERJ3GSYJ222 RESISTOR 1 2 2K 1 16W ...

Page 97: ...OR 3 Q10 Q180 2SD1859TV2Q TRANSISTOR 2 R100 R101 R102 R221 AERJ3GSYJ103 RESISTOR 4 10K 1 16W 5 R40 R41 R42 R43 R44 R45 AERJ3GSYJ104 RESISTOR 9 100K 1 16W 5 R46 R47 R48 R49 AERJ3GSYJ154 RESISTOR 1 150K 1 16W 5 R220 AERJ3GSYJ222 RESISTOR 1 2 2K 1 16W 5 R310 AERJ3GSYJ332 RESISTOR 1 3 3K 1 16W 5 R330 AERJ3GSYJ333 RESISTOR 1 3 3K 1 16W 5 AERJ3GSYJ360 RESISTOR 1 36Ω 1 4W 5 RD16ST102J RESISTOR 1 1K 1 4W ...

Page 98: ... 33 ...

Page 99: ... 34 ...

Page 100: ... E2 P1 P2 P2 P2 P2 F00074T20BRP F00074T20HRP F00074T70BRP F00074T70HRP F603L4T70RP F603Y4T20BAP F603Y4T20HAP F603Y4T70BRP F603Y4T70HRP F00034T20RP F01024T20BAP F01024T20HAP F01024T70BRP F01024T70HRP NAME PLATE NAME PLATE NAME PLATE NAME PLATE D P CIRCUIT MEMBRANE SWITCH U MEMBRANE SWITCH U MEMBRANE SWITCH U MEMBRANE SWITCH U INSTRUCTION MANUAL PACKING CASE PAPER PACKING CASE PAPER PACKING CASE PAP...

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Panasonic NN-T754SF, Service Manual

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