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B. During oven operation, input current is approximately less than

0.4A.

INPUT AMPERE FAILURE CODE

Unplug CN701

<0.4A

Oven stops in 3

seconds after

started.

If both a and b are OK, the Inverter Power Supply (U) can be determined OK.

11. MEASUREMENTS AND ADJUSTMENTS

11.1. Adjustment of primary latch switch, secondary latch switch and
short switch.

1. When mounting Primary latch switch,Secondary latch switch and

short switch to door hook assembly, mount the Primary latch switch,
the Secondary latch switch and the short switch to the door hook
assembly as shown in table.

NOTE:

No specific adjustment during installation of Primary latch switch,
Secondary latch switch and short switch to the door hook is
necessary.

2. When mounting the door hook assembly to the oven assembly, adjust

the door hook assembly by moving it in the direction of arrow in the
illustration so that the oven door will not have any play in it. Check for
play in the door by pulling the door assembly. Make sure that the latch
keys move smoothly after adjustment is completed. Completely
tighten the screws holding the door hook assembly to the oven
assembly.

3. Reconnect the short switch and check the continuity of the monitor

30

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Содержание NN-H264SFR

Страница 1: ...nd distribution is a violation of law NN P295 NN H275 NN S255 NN S245 NN H264SFR NN H264BFR NN H264WFR NN S254SFR NN S254BFR NN S254WFR APH USA CPH CANADA Microwave Oven Please file and use this manual together with the service manual for Model NN S262SF Order No SIMMC0203005C1 ORDER NO PHAMOS0503019A1 E2 ...

Страница 2: ...2 NN P295 NN H275 NN S255 NN S245 NN H264SFR NN H264BFR NN H264WFR NN S254SFR NN S254BFR NN S254WFR ...

Страница 3: ...3 NN P295 NN H275 NN S255 NN S245 NN H264SFR NN H264BFR NN H264WFR NN S254SFR NN S254BFR NN S254WFR ...

Страница 4: ...4 At least once a year have the radiation monitor checked for calibration by its manufacturer 12 4 SIMPLE WAY OF H V INVERTER MAGNETRON TROUBLESHOUTING 13 5 H V INVERTER BOARD MAIN PARTS LIST F606Y6G00AP F606Y6G00CP 13 6 EXPLODED VIEW AND PARTS LIST 14 6 1 EXPLODED VIEW 14 6 2 PARTS LIST 15 6 3 DOOR ASSEMBLY 17 6 4 ESCUTCHEON BASE ASSEMBLY 18 6 5 PACKING AND ACCESSORIES 21 6 6 WIRING MATERIALS 22 ...

Страница 5: ...1 SCHEMATIC DIAGRAM 1 1 APH NN P295 H275 5 NN P295 NN H275 NN S255 NN S245 NN H264SFR NN H264BFR NN H264WFR NN S254SFR NN S254BFR NN S254WFR ...

Страница 6: ...1 2 APH NN S255 6 NN P295 NN H275 NN S255 NN S245 NN H264SFR NN H264BFR NN H264WFR NN S254SFR NN S254BFR NN S254WFR ...

Страница 7: ...1 3 APH NN H264 FR S254 FR 7 NN P295 NN H275 NN S255 NN S245 NN H264SFR NN H264BFR NN H264WFR NN S254SFR NN S254BFR NN S254WFR ...

Страница 8: ...1 4 CPH NN P295 H275 8 NN P295 NN H275 NN S255 NN S245 NN H264SFR NN H264BFR NN H264WFR NN S254SFR NN S254BFR NN S254WFR ...

Страница 9: ...1 5 CPH NN S255 S245 9 NN P295 NN H275 NN S255 NN S245 NN H264SFR NN H264BFR NN H264WFR NN S254SFR NN S254BFR NN S254WFR ...

Страница 10: ...easurement 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 th...

Страница 11: ...nter of the oven 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 3 2 1 Me...

Страница 12: ...3 4 At least once a year have the radiation monitor checked for calibration by its manufacturer 12 NN P295 NN H275 NN S255 NN S245 NN H264SFR NN H264BFR NN H264WFR NN S254SFR NN S254BFR NN S254WFR ...

Страница 13: ...nal 2 Between 1 0A and 2 0A Check continuity of D702 in Inverter PCB 1 D702 shorted Replace H V Inverter F606Y6G00AP F606Y6G00CP 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 5 H V INVERTER BOARD MAIN PARTS LIST F606Y6G00AP F606Y6G00CP ...

Страница 14: ...6 EXPLODED VIEW AND PARTS LIST 6 1 EXPLODED VIEW 14 NN P295 NN H275 NN S255 NN S245 NN H264SFR NN H264BFR NN H264WFR NN S254SFR NN S254BFR NN S254WFR ...

Страница 15: ...5 APH CPH H275 APH CPH 17 F401W6Z60AP BLOWER MOTOR U 1 S255 APH CPH S245 CPH H264 FR APH S254 FR APH 18 F42486Z00AP FAN CASE C 1 20 F42505H00AP SIROCCO FAN C 1 21 F42676F00AP FAN MOTOR B 1 FOR MAGNETRON COOLING 22 F601L6F00AP SENSOR BU 1 P295 APH CPH H275 APH CPH H264 FR APH 23 F40246Z00AP EXHAUST GUIDE A 1 24 F44775H00AP EXHAUST GUIDE 1 25 F20025H00AP RACK SUPPORT 4 P295 APH CPH H275 APH CPH S255...

Страница 16: ...ION LABEL 1 72 F00725H00AP CAUTION LABEL 1 73 F03346Z20AP MENU LABEL 1 H275 APH 73 F03346Z20CP MENU LABEL 1 H275 CPH 74 F66396F00AP MOTOR INSTALLATION BRACKET 1 P295 APH CPH 75 F63266F00AP DRIVE MOTOR 1 P295 APH CPH 76 F11736F00AP SPRING 2 P295 APH CPH 77 F11196F00SAP VENT GRILLE OSTENTATIOUS COVER 1 P295SF APH CPH 77 F11196Z00BAP VENT GRILLE OSTENTATIOUS COVER 1 P295BF APH CPH 77 F11196Z00HAP VEN...

Страница 17: ...CPH D2 F302A6Z30QAP DOOR A U 1 H275QF APH CPH D2 F302A5V10SAP DOOR A U 1 H264SFR APH D2 F302A5V20BAP DOOR A U 1 H264BFR APH D2 F302A5V20HAP DOOR A U 1 H264WFR APH D2 F302A6F20SAP DOOR A U 1 S254SFR APH D2 F302A6F20BAP DOOR A U 1 S254BFR APH S245BF CPH D2 F302A6F20HAP DOOR A U 1 S254WFR APH S245WF CPH D3 F302K5H00AP DOOR E U 1 D4 F30215G10XN DOOR KEY SPRING 1 D5 F30855H00AP DOOR C 1 D6 F31455H00AP ...

Страница 18: ...F66166Z00AP FLAT CABLE 1 P295 APH CPH E25 F82986F00SAP BUTTON 1 P295SF APH CPH E25 F82986Z00BAP BUTTON 1 P295BF APH CPH E25 F82986Z00HAP BUTTON 1 P295WF APH CPH E26 F891P6F00SAP DOOR OPENING BUTTON 1 P295SF APH CPH E26 F891P6Z00BAP DOOR OPENING BUTTON 1 P295BF APH CPH E26 F891P6Z00HAP DOOR OPENING BUTTON 1 P295WF APH CPH E27 F82566F00AP DOOR OPENING LEVER 1 P295 APH CPH E28 F80375950AP COOK BUTTON...

Страница 19: ...MBRANE SWITCH U 1 H275SF CPH E49 F630Y6Z30BAP MEMBRANE SWITCH U 1 H275BF APH E49 F630Y6Z30BCP MEMBRANE SWITCH U 1 H275BF CPH E49 F630Y6Z30HAP MEMBRANE SWITCH U 1 H275WF APH E49 F630Y6Z30HCP MEMBRANE SWITCH U 1 H275WF CPH E49 F630Y6Z30QAP MEMBRANE SWITCH U 1 H275QF APH E49 F630Y6Z30QCP MEMBRANE SWITCH U 1 H275QF CPH E50 F81276Z20AP BACK PANEL 1 H275 APH CPH E51 F803G7Z20BAP POP UP DIAL U 1 H275SF A...

Страница 20: ...264 FR APH S254 FR APH E8 F80375950AP COOK BUTTON SPRING 1 E9 F630Y6Z60BAP MEMBRANE SWITCH U 1 S255BF APH E9 F630Y6Z60HAP MEMBRANE SWITCH U 1 S255WF APH E9 F630Y6Z60BCP MEMBRANE SWITCH U 1 S255BF CPH E9 F630Y6Z60HCP MEMBRANE SWITCH U 1 S255WF CPH E9 F630Y6F20BCP MEMBRANE SWITCH U 1 S245BF CPH E9 F630Y6F20HCP MEMBRANE SWITCH U 1 S245WF CPH E9 F630Y6F10BAP MEMBRANE SWITCH U 1 H264SFR BFR APH E9 F630...

Страница 21: ...PACKING CASE PAPER 1 H275BF APH P2 F01026Z30HAP PACKING CASE PAPER 1 H275WF APH P2 F01026Z30QAP PACKING CASE PAPER 1 H275QF APH P2 F01026Z20SCP PACKING CASE PAPER 1 H275SF CPH P2 F01026Z30BCP PACKING CASE PAPER 1 H275BF CPH P2 F01026Z30HCP PACKING CASE PAPER 1 H275WF CPH P2 F01026Z30QCP PACKING CASE PAPER 1 H275QF CPH P2 F01026Z60BAP PACKING CASE PAPER 1 S255BF APH P2 F01026Z60HAP PACKING CASE PAP...

Страница 22: ... H275SF CPH P18 F04456Z30BCP OVERLAY 1 H275BF CPH P18 F04456Z30HCP OVERLAY 1 H275WF CPH P18 F04456Z30QCP OVERLAY 1 H275QF CPH P18 F04456Z60BCP OVERLAY 1 S255BF CPH P18 F04456Z60HCP OVERLAY 1 S255WF CPH P18 F04456F20BCP OVERLAY 1 S245BF CPH P18 F04456F20HCP OVERLAY 1 S245WF CPH P19 F011G6Z00AP ATTACHMENT B 1 33 F400B6Z00AP FILTER U 2 6 6 WIRING MATERIALS Ref No Part No Part Name Description Pcs Set...

Страница 23: ...7 DIGITAL PROGRAMMER CIRCUIT 7 1 NN P295 APH CPH 23 NN P295 NN H275 NN S255 NN S245 NN H264SFR NN H264BFR NN H264WFR NN S254SFR NN S254BFR NN S254WFR ...

Страница 24: ...24 NN P295 NN H275 NN S255 NN S245 NN H264SFR NN H264BFR NN H264WFR NN S254SFR NN S254BFR NN S254WFR ...

Страница 25: ...7 2 NN H275 APH CPH NN S255 APH CPH 25 NN P295 NN H275 NN S255 NN S245 NN H264SFR NN H264BFR NN H264WFR NN S254SFR NN S254BFR NN S254WFR ...

Страница 26: ...26 NN P295 NN H275 NN S255 NN S245 NN H264SFR NN H264BFR NN H264WFR NN S254SFR NN S254BFR NN S254WFR ...

Страница 27: ...7 3 NN S245 CPH H264 FR APH S254 FR APH 27 NN P295 NN H275 NN S255 NN S245 NN H264SFR NN H264BFR NN H264WFR NN S254SFR NN S254BFR NN S254WFR ...

Страница 28: ...28 NN P295 NN H275 NN S255 NN S245 NN H264SFR NN H264BFR NN H264WFR NN S254SFR NN S254BFR NN S254WFR ...

Страница 29: ...23 2SD0601A0L CHIP TRANSISTOR 2 Q40 2SD0601A0L CHIP TRANSISTOR 1 S255 APH CPH Q113 2SD0602ARL CHIP TRANSISTOR 1 Q500 2SB0709A0L CHIP TRANSISTOR 1 P295 APH CPH Q112 2SB0710ARL CHIP TRANSISTOR 1 Q25 Q110 Q210 B1GBCFEL0002 CHIP DIGI TRANSISTOR 3 Q224 B1GBCFEL0002 CHIP DIGI TRANSISTOR 1 P295 APH CPH Q111 Q115 Q222 Q226 Q228 UNR211100L CHIP DIGI TRANSISTOR 5 Q114 UNR221100L CHIP DIGI TRANSISTOR 1 D41 D...

Страница 30: ... 1 270V D26 D27 AERZ102KSBN VARISTOR 2 1000V CPH R120 AERJ06JR00R CHIP RESISTOR 1 0Ω Ω Ω Ω 1 10W 5 R80 R81 R211 R354 AERJ06J102R CHIP RESISTOR 4 1KΩ Ω Ω Ω 1 10W 5 R22 R82 R83 R230 R340 R344 R350 R508 R519 AERJ06J103R CHIP RESISTOR 12 10KΩ Ω Ω Ω 1 10W 5 R14 R112 R119 R221 R223 R351 R352 AERJ06J104R CHIP RESISTOR 13 100Ω Ω Ω Ω 1 10W 5 R515 AERJ06J125R CHIP RESISTOR 1 1 2MΩ Ω Ω Ω 1 10W 5 R121 R122 AE...

Страница 31: ...R 2 1000V CPH D28 AER241KD07A VARISTOR 1 240V R311 AERJ06J102R CHIP RESISTOR 1 1KΩ Ω Ω Ω 1 10W 5 R224 R340 R341 R344 R490 R588 AERJ06J103R CHIP RESISTOR 6 10KΩ Ω Ω Ω 1 10W 5 R568 R583 R589 R590 AERJ06J103R CHIP RESISTOR 4 10KΩ Ω Ω Ω 1 10W 5 H264 R APH R221 R226 R342 R343 R496 AERJ06J104R CHIP RESISTOR 5 100Ω Ω Ω Ω 1 10W 5 R181 R320 AERJ06J220R CHIP RESISTOR 2 22Ω Ω Ω Ω 1 10W 5 R567 AERJ06J220R CHI...

Страница 32: ...ORDER NO SIMMC 0203005C1 E2 Microwave Oven NN S262SF NN S262BF NN S262WF NN S252BF NN S252WF APH USA CPH CANADA SPECIFICATIONS 2002 Shanghai Matsushita Microwave Oven Co Ltd All rights 1 ...

Страница 33: ... wire etc through any holes in the unit during operation 18 8 6 Confirm after repair 19 9 DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE 20 9 1 Magnetron 20 9 2 Digital programmer circuit DPC and membrane key board 20 9 3 Low voltage transformer and or power relays RY1 RY2 21 9 4 Inverter power supply U 22 9 5 Door assembly 24 9 6 Stirrer motor 25 9 7 Blower motor U 25 9 8 Fan motor A for H V inverte...

Страница 34: ...acturer 33 13 TROUBLESHOOTING GUIDE 34 13 1 Trouble related to digital programmer circuit 36 13 2 Troubleshooting of inverter circuit U and magnetron NEW H V 38 13 3 How to check the semiconductors using an OHM meter 38 14 EXPLODED VIEW AND PARTS LIST 39 15 PARTS LIST 39 16 DOOR ASSEMBLY 43 17 WIRING MATERIALS 43 18 ESCUTCHEON BASE ASSEMBLY 44 19 PACKING AND ACCESORIES 45 20 DIGITAL PROGRAMMER CIR...

Страница 35: ...reserved Unauthorized copying and distribution is a violation of law 2 ...

Страница 36: ...3 ...

Страница 37: ...4 ...

Страница 38: ...5 ...

Страница 39: ...ive Stage Cooking O O Inverter Turbo Defrost O O Sensor Reheat O Sensor Cooking O Auto Reheat O Inverter Auto Cooking O Quick Min O O Popcorn O O Digital Clock O O Timer O O Child Safety Lock O O Vent Fan O O Cooktop Light O O 2 CONTROL PANEL APH 6 ...

Страница 40: ...3 CONTROL PANEL CPH 7 ...

Страница 41: ...4 OPERATION AND DIGITAL PROGRAMMER CIRCUIT TEST PROCEDURE 4 1 To set clock 8 ...

Страница 42: ... TOD has now been resistered into the digital programmer circuit and will count up by minutes 4 2 Time cooking for two stage OPERATION SCROLL DISPLAY 1 Place a water load in the oven 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 6 times to set Medium power 2nd stage 5 Set for 1 minute by pressing Number pads 1 M...

Страница 43: ...eeps 5 times and shuts off Time of day or colon if set appears in the display 4 3 Inverter turbo defrost OPERATION SCROLL DISPLAY 1 Press Inverter Turbo Defrost Pad INVERTER TURBO DEFROST SET WEIGHT 2 Set the weight for 1 lb by pressing Number pads 1 Ib 1 0 3 Press Start pad 4 Press Stop Reset Pad twice Oven shuts off Time of day or colon if set appears in the display 4 4 Inverter auto cooking 10 ...

Страница 44: ...ing time has elapsed Oven beeps 5 times and shuts off Time of day or colon if set appears in the display 4 5 Popcorn OPERATION SCROLL DISPLAY 1 Press Popcorn pad once for 3 5 oz serving Select 3 5 3 0 2 85 2 65 1 75 oz 2 Press Start pad When cooking time has elapsed Oven beeps 5 times and shuts off Time of day or colon if set appears in the display 4 6 Auto reheat 11 ...

Страница 45: ...s elapsed Oven beeps 5 times and shuts off Time of day or colon if set appears in the display 4 7 Power level Press Power Level Power Level Display Window once P10 HIGH P10 twice P9 P9 3 times P8 P8 4 times P7 MED HIGH P7 5 times P6 MEDIUM P6 6 times P5 P5 7 times P4 P4 8 times P3 MEDIUM LOW P3 9 times P2 P2 10 times P1 LOW P1 5 SCHEMATIC DIAGRAM APH 12 ...

Страница 46: ...6 SCHEMATIC DIAGRAM CPH 13 ...

Страница 47: ...er cooking control High Voltage Inverter Power supply U controls output power by the signal from Digital Programmer Circuit DPC Power relay stays ON for P4 to P10 and For P1 to P3 both inverter drive signal and power relay to control output power NOTE 14 ...

Страница 48: ...V 60Hz is rectified to DC voltage immediately 2 DC voltage will be supplied to the switching devices called IGBT These devices will be switched ON OFF by the 20 to 40 kHz PWM pulse width modulation signal from the microcomputer in the DPC 3 This drives 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 recti...

Страница 49: ...cuit Inverter Turbo Defrost WEIGHT SELECTED COOKING TIME 1 0LB 5 min 28 sec 8 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING Unlike many other appliances the microwave oven is high voltage high current equipment Though it is free from danger in ordinary use extreme care should be taken during repair CAUTION Servicemen should remove their watches whenever working close to or replacing the magnetron 8...

Страница 50: ...cing and replacing WARNING OF INVERTER POWER SUPPLY U GROUNDING Check the High Voltage Inverter Power Supply circuit grounding This High Voltage Inverter Power Supply circuit board must have a proper chassis ground by the grounding bracket to the chassis ground otherwise this H V Inverter circuit board will expose very high voltage and cause extreme DANGER Be sure to have proper grounding by the g...

Страница 51: ...G When the 18 Amp fuse if blown due to the operation of short switch you must replace Primary latch switch and short switch Also replace power relay B RY1 when the continuity check reads shorted contacts 1 2 1 This is mandatory Refer to Measurements and Adjustments for these switches 2 When replacing the fuse confirm that it has the appropriate rating for these models 3 When replacing faulty switc...

Страница 52: ...rews are not properly tightened 2 Make sure that all electrical connections are tight before inserting the plug into the wall outlet 3 Check for microwave energy leakage Refer to procedure for measuring microwave energy leakage CAUTION MICROWAVE RADIATION DO NOT BECOME EXPOSED TO RADIATION FROM THE MICROWAVE GENERATOR OR OTHER PARTS CONDUCTING MICROWAVE ENERGY 19 ...

Страница 53: ...e the high voltage capacitor 2 Disconnect 2 connectors from fan motor B 3 Remove 4 screws holing fan motor B U assembly 4 Remove 3 screws which holding exhaust guide U onto oven 5 Tilt exhaust guide U 6 Remove 1 screw holding air guide A and then remove air guide A 7 Remove 2 high voltage lead wires from magnetron filament terminal 8 Remove 4 screws holding magnetron NOTE After replacing the magne...

Страница 54: ...e key board completely from escutcheon base NOTE 1 The membrane key board is attached to the escutcheon base with double faced adhesive tape Therefore applying hot air such as using a hair dryer is recommended for smoother removal 2 When installing new membrane key board make sure that the surface of escutcheon base is cleaned sufficiently so that any problems shorted contacts or uneven surface ca...

Страница 55: ...TIONS 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 Remove 1 screw holding orif...

Страница 56: ... make Inverter bracket flat and then remove orifice 9 Release 2 tabs on the Inverter bracket and make flat 10 Unplug 3 connector on H V Inverter U 11 Remove 3 screws holding H V Inverter U onto Inverter bracket 12 Remove 1 screw holding grounding Plate on the H V Inverter U 23 ...

Страница 57: ...y spring 5 Open Door E at the opening angle of approximately 10 Note The door cannot be removed if the opening angle is greater than 10 6 Remove the door E from its hinges by pushing the door E s bottom upward and out 7 Replace other components NOTE Door alignment is critical If door is misaligned apply pressure until alignment is achieved NOTE After replacement of the defective component parts of...

Страница 58: ...g stirrer motor 7 Release from retainer tab by turn spinning certain angle remove stirrer motor 9 7 Blower motor U 1 Disconnect 1 connector from blower motor U 2 Remove 2 screws which holding blower motor U on the oven 3 Remove blower motor U 9 8 Fan motor A for H V inverter U cooling Disassembly procedure step 1 8 same as above H V Inverter U 9 Pull out fan blade 10 Remove 2 screws which holding ...

Страница 59: ... lead wires from fan motor B terminals 2 Remove 4 screws holing fan motor B U Assembly 3 Remove 4 screws which holding fan case installation plate on the fan case C 4 From interior of fan case C remove 2 screws holding fan motor B 9 10 Turntable motor 26 ...

Страница 60: ...nts or wiring always unplug the oven from its power source and discharge the high voltage capacitors 10 1 Primary latch switch secondary secondary latch switch and power relay B interlocks 1 Unplug the lead connectors to Power Relay B and verify continuity of the power relay B 1 2 terminals 2 Unplug lead connectors to Primary Latch Switch and Secondary Latch Switch 3 Test the continuity of switche...

Страница 61: ...circuit by disconnecting the leads 2 A continuity check across magnetron filament terminals should indicate one ohm or less 3 A continuity check between each filament terminal and magnetron case should read open 10 4 Membrane key board Membrane switch assembly Check continuity between switch terminals by tapping an appropriate pad on the key board The contacts assignment of the respective pads on ...

Страница 62: ... wire connector CN703 from magnetron tube 4 Program oven at High power for 1 minute and press start A After approximately 23 seconds oven stops B During oven operation input current is approximately 0 5 to 1A If both a and b are OK please proceed to test 2 INPUT AMPERE FAILURE CODE Unplug CN703 0 5 to 1A Oven stops in 23 seconds after started Test2 Continued from Test 1 1 Unplug 3 pin connector CN...

Страница 63: ...h and the short switch to the door hook assembly as shown in table NOTE No specific adjustment during installation of Primary latch switch Secondary latch switch and short switch to the door hook is necessary 2 When mounting the door hook assembly to the oven assembly adjust the door hook assembly by moving it in the direction of arrow in the illustration so that the oven door will not have any pl...

Страница 64: ...t watch or stopwatch NOTE Check the line voltage under load Low voltage will lower the magnetron output Take the temperature readings and heating time as accurately as possible 1 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 2 Place the beaker on the center of glass cook plate Set the oven for High power ...

Страница 65: ...rnment standard is 5 mW cm2 while in the customer s home 2mW cm2 stated here is our own voluntary standard 1mW cm2 for Canada 12 1 Equipment Electromagnatic radiation monitor Glass thermometer 212 F or 100 C 600cc glass beaker 12 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 T...

Страница 66: ... around the magnetron WARNING Avoid contacting any high voltage parts 12 2 2 Measurements with a fully assembled oven After all components including outer panel are fully assembled measure for radiation leakage around the door periphery the door viewing window the exhaust opening and air inlet openings 12 3 Record keeping and notification after measurement After any adjustment or repair to a micro...

Страница 67: ...13 TROUBLESHOOTING GUIDE 34 ...

Страница 68: ...operating procedures in order to find the exact cause of any trouble SYMPTOM CAUSE CORRECTIONS 1 Oven is dead 1 2 3 4 Open or loose lead wire harness Open thermal cutout Magnetron Open low voltage transformer Defective DPC Check fan motor when thermal cutout is defective Fuse is OK No display and no operation at all 2 No display and no operation at all Fuse is blown 1 2 Shorted lead wire harness D...

Страница 69: ...latch switch Adjust door and latch switches 3 Defective secondary latch switch 7 Microwave output is low Oven takes longer time to cook food 1 Decrease in power source voltage Consult electrician 2 Open or loose wiring of magnetron filament circuit Intermittent oscillation 3 Aging change of magnetron 8 Fan motor turns on and turntable rotates when door is opened 1 Shorted primary latch switch 9 Ov...

Страница 70: ...e time of these repairs make visual inspection of the varistor for burning damage and examine the transformer with tester for the presence of layer short circuit check primary coil resistanc If any abnormal condition is detected replace the defective parts No key input 1 Membrane switch continuity Abnormal Membrane switch Normal IC 1 No beep sound 1 IC 1 pin 8 voltage Abnormal IC 1 Normal BUZZER Q...

Страница 71: ...is 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 Timer Start Power Level Program unit for operation H97 H98 H99 appears in display window a...

Страница 72: ...13 3 How to check the semiconductors using an OHM meter 14 EXPLODED VIEW AND PARTS LIST 39 ...

Страница 73: ...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 40 ...

Страница 74: ...1 E3136 8000BP HOOK LEVER A 1 12 E31374830AP HOOK LEVER B 1 13 E31384830AP HOOK LEVER C 1 14 F40015H00AP FAN MOTOR A 1 FOR INVERTER U COOLING 15 F40085H00AP FAN BLADE 1 FOR INVERTER U COOLING 16 F40255H00AP ORIFICE 1 17 F401W5H00AP BLOWER MOTOR U 1 18 F42485H00AP FAN CASE C 1 19 F41585H00AP FAN CASE INSTALLATION PLATE 1 20 F42505H00AP SIROCCO FAN C 1 21 F42675H00AP FAN MOTOR B 1 FOR MAGNETRON COOL...

Страница 75: ...ECONDARY LATCH SWITCH L 3C2 2 50 A61785180AP MICROSWITCH 1 SHORT SWITCH L 2C2 2 51 F61455H00AP THERMAL CUTOUT 1 52 F61455E60XN THERMAL CUTOUT 3 53 A606Y4T00AP H V INVERTER U 1 APH 53 A606Y4T00CP H V INVERTER U 1 CPH 54 2M261 M32F MAGNETRON 1 APH 54 2M261 M32G MAGNETRON 1 CPH 55 B62308250AP FUSE 1 18A 125V 56 B62314000AP FUSE HOLDER 1 APH 57 J692Y4T00CP NOISE FILTER U 1 CPH 58 F82605H00AP NOISE FIL...

Страница 76: ...Set Remarks D1 F3018 1200 DOOR KEY A 1 D2 F302A5H00AP DOOR A U 1 S262SF D2 F302A5H00BAP DOOR A U 1 S262BF S252BF D2 F302A5H00HAP DOOR A U 1 S262WF S252WF D3 F302K5H00AP DOOR E U 1 D4 F30214000AP DOOR KEY SPRING 1 D5 F30855H00AP DOOR C 1 D6 F31455H00AP DOOR SCREEN A 1 D7 F02459660AP DHHS LABEL 1 APH D7 F04114180CP DHHS LABEL 1 CPH 17 WIRING MATERIALS 43 ...

Страница 77: ...ion Pcs Set Remarks W1 F030A5H00AP LEAD WIRE HARNESS 1 APH W1 F030A5H00CP LEAD WIRE HARNESS 1 CPH W2 F030E5H00AP H V LEAD WIRE 1 APH W2 F030E5H00CP H V LEAD WIRE 1 CPH W3 F03535H00AP LEAD WIRE HARNESS U 1 18 ESCUTCHEON BASE ASSEMBLY 44 ...

Страница 78: ... 1 S252WF CPH E3 F80345H10BAP ESCUTCHEON BASE 1 S262BF S252BF E3 F80345H10HAP ESCUTCHEON BASE 1 S262WF S252WF E4 F80725H10BAP DOOR OPENING BUTTON 1 S262BF S252BF E4 F80725H10HAP DOOR OPENING BUTTON 1 S262WF S252WF E5 F80375950AP OPENING BUTTON SPRING 1 E6 F82565H00AP DOOR OPENING LEVEL 1 E7 F81275H00AP BACK PLATE 1 E8 F00075H00AP NAME PLATE 1 S262SF APH E8 F00075H10BAP NAME PLATE 1 S262BF APH E8 F...

Страница 79: ...10HCP PACKING CASE PAPER 1 S262WF CPH P2 F01025H20BCP PACKING CASE PAPER 1 S252BF CPH P2 F01025H20HCP PACKING CASE PAPER 1 S252WF CPH P3 F01045H00AP UPPER FILLER 1 P4 F01055H00AP LOWER FILLER 1 P5 F01065H00AP P E BAG 1 P6 F01075H00AP DOOR SHEET 1 P7 A06015H00AP COOKING TRAY 1 P8 F01175H00AP TRAY PACKING B 1 S262SF BF WF P9 F01485H00AP REINFORCE BRACKET 2 P10 F01085H00AP TRAY PACKING 1 P11 F01925H0...

Страница 80: ...20 DIGITAL PROGRAMMER CIRCUIT SCHEMATIC DIAGRAM 47 ...

Страница 81: ...21 DIGITAL PROGRAMMER CIRCUIT PARTS LIST 48 ...

Страница 82: ... 77 DIODE 5 D585 AEDNRB721Q DIODE 1 D312 AEDNRB721Q DIODE 1 S262SF BF WF D25 AERZ271KD10A VARISTOR 1 D26 D27 AERZ102KD10A VARISTOR 2 CPH D28 AERZ241KD07A ZENER DIODE 1 D180 D181 D182 D183 D184 D185 D186 D187 D188 D189 AESQSML210MT CHIP LED 10 IC1 MN101C54CDW L S I 1 IC220 AEICU2004GR IC 1 IC480 AEICUPC358G2 IC 1 S262SF BF WF IC25 AEICR29MF1 IC 1 IC10 AEIC78L05J T IC 1 IC221 AEICBU2090F IC 1 S262SF...

Страница 83: ...85 AERJ06J471R CHIP RESISTOR 1 470 1 16W 5 S262SF BF WF R360 AERJ06J472R CHIP RESISTOR 1 4 7K 1 16W 5 R593 AERJ06J472R CHIP RESISTOR 1 4 7K 1 16W 5 S262SF BF WF R592 AERJ06J473R CHIP RESISTOR 1 47K 1 16W 5 R574 AERJ06J624R CHIP RESISTOR 1 620K 1 16W 5 S262SF BF WF R571 AERJ06J753R CHIP RESISTOR 1 75K 1 16W 5 S262SF BF WF R14 R180 AERDY2TJ103T CARBON FILM RESISTOR 2 10K 1 4W 5 R228 R290 AERDY2TJ104...

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