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National NN-C781JF, Руководство по обслуживанию

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FUSE

TURNTABLE MOTOR
TURNTABLE MOTOR

SENSOR COVER B

SENSOR COVER C

INVERTER BRACKET
INVETTER BRACKET B

GROUNDING PLATE

FUSE HOLDER

AC CORD W/PLUG
AC CORD W/PLUG

AC CORD W/PLUG

AC CORD W/PLUG

AC CORD W/PLUG
SCREW

SCREW

SCREW

MAGNETRON

MAGNETRON

ESCUTCHEON SASH
LEFT HINGE

RIGHT HINGE

NUT

SPRING WASHER
EXHAUST GUIDE A

EXHAUST GUIDE B

INSULATION PLATE

RIGHT HEATER PANEL

HEATER FAN CASE
HEATER FAN

PULLEY B

FAN BRACKET A

FAN BRACKET B
FAN SPACER C

HEATER FAN AXLETREE

FAN BLADE BEARING

BELT A

HEATER FAN MOTOR

HEATER FAN MOTOR

HEATER FAN MOTOR

FAN BLADE

HEATER FAN MOTOR BRACKET
INCANDESCENT LAMP

SOCKET

CUSHION RUBBER B

CUSHION RUBBER C
EARTH LABEL

CORD CAUTION LABEL

NOISE FILTER (U)

P.C.B. HOLDER

INCANDESCENT LAMP (U)

LAMP SHADE

CAUTION LABEL

1

1
1

1

1

1
1

1

1

1
1

1

1

1
4

1

4

1

1

1
1

1

2

2
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

1

1

18A, 125V (WNT)

EXCEPT WNT
 WNT

EXCEPT ZPE & WNT

HNE,MNQ,YNQ,YKE,KKE,KNQ
TNE

LNK

SNM

ZPE
FOR MAGNETRON

FOR COVER

FOR LEFT HINGE 2, RIGHT HINGE 2

EXCEPT ZPE & WNT

ZPE,WNT

EXCEPT WNT & SNM

SNM

WNT

EXCEPT WNT

EXCEPT WNT

(HEATER FAN)

(AIR GUIDE B)
TNE,WNT

KKE,KNQ,SNM

ZPE,WNT

ZPE,WNT

WNT

WNT

YNQ

Ref.No.

Part No.

Part name & Description

Pcs/

Set

Remarks

B62308250AP

F63264760JP
F63264080AP

F64504J00XN

F65434X80MN

F65854Y60XN
F67634X80MN

F66624X80MN

A62314000AP

F900C5E60YK
F900C5E60TN

F900C5G00WN

F900C5G00SN

F900C5G00ZP
10RU

6BN

12LR

2M261-M32F

2M261-M32G

F80234J00XN
F300B-1640

F300U-1640

XNG4EVS

XWS4VL
F40244X80MN

F41074X80MN

F48804X80MN

F22364X80MN

F203M4X80MN
F22395850AP

F41325850AP

F41575850AP

F41585850AP
F41635850AP

A41645850AP

A42245110BP

A40604X80MN

F41795G00XN

F41795G00SN

F41795G00WN

F40085020AQ

F41805G00XN
F60304080BP

A61524650AP

F0911000CC

F0922000AD
F0005-4S10

F02395E20KN

J692Y4T00QP

F67974X00CP

F612E5A00AP

F63174X80WN

F00065540MN

!

!

!

!

!

!

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!

!

!

Содержание NN-C781JF

Страница 1: ...ensions Oven Cavity Dimensions Weight Output power IEC705 88 Test Procedure Specifications subject to change without notice Specifications Models 240V AC Single Phase 50Hz For KNQ Models 230V 240V AC...

Страница 2: ...ed 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 product should...

Страница 3: ...hazards High voltage may 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 v...

Страница 4: ...sed correctly a beep will be heard If a pad is pressed and no beep is heard the unit has not accepted the instruction The oven will beep twice between programmed stages At the end of any complete prog...

Страница 5: ...day TOD by press ing appropriate pads 5 Press Clock pad TOD has now been resistered into the digital programmer circuit and will count up by minutes 2 Time Cooking for Two Stage OPERATION SCROLL DISP...

Страница 6: ...esigned for home use Cooking will not operate during demonstration mode To set demonstration mode 1 Pour 150 15cc 4 5 1 2 ozs of room temperature water in a oven glassware or ceramic utensil Place the...

Страница 7: ...5G0 CAUTION HIGH VOLTAGE AREA 10A FUSE 50Hz AC 220V 240V SW0 SW1 DIGITAL PROGRAMMER CIRCUIT STEAM SENSOR TEMP SENSOR INVERTER MAGNETRON 2M261 M32F THERMAL CUTOUT HEATER PRIMARY LATCH SWITCH SECONDARY...

Страница 8: ...5G0 CAUTION HIGH VOLTAGE AREA AC 220V 50Hz AC 120V 60Hz SW0 SW1 DIGITAL PROGRAMMER CIRCUIT STEAM SENSOR TEMP SENSOR INVERTER MAGNETRON 2M261 M32G THERMAL CUTOUT HEATER PRIMARY LATCH SWITCH SECONDARY...

Страница 9: ...wer 3 Turbo Defrost Control When this Auto Control feature is selected and the Start Pad is tapped A The digital programer circuit determines the power level and cooking time to complete cooking and i...

Страница 10: ...eater may not be on during a heater on period if the preprogrammed oven temperature has been reached This is due to the fact that the oven is keeping the preprogrammed oven temperature constant so of...

Страница 11: ...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...

Страница 12: ...D 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 Magnetr...

Страница 13: ...ACITORS REMOVE GROUND WIRE 08 180M 08 155M 08 150M 2 Digital Programmer Circuit DPC and membrane key board NOTE Be sure to ground any static electric charge built up on your body before handling the D...

Страница 14: ...ing inverter and fan motor assembly 4 Unplug 3 connectors of inverter PCB 5 Remove 2 screws holding inverter PCB on to bracket NOTE Do not pull by lead wires but make sure to pull housing unless PCB o...

Страница 15: ...E 9 Remove screws holding door E to door A assembly After replacement of the defective component parts of the door reassemble it and follow the instructions below for proper installation and adjustmen...

Страница 16: ...E SURFACE OF LEAD WIRE WHITE SURFACE METAL SIDE TO DETECT STEAM FROM OVEN CAVITY 7 Steam sensor 1 Remove 1 screw holding steam sensor unit 2 Disconnect CN2 connector from digital programmer circuit bo...

Страница 17: ...es from Inverter Power Supply U primary terminals B Connect test probes of ohm meter to the disconnected leads which were connected to Inverter Power Supply U C Test the continuity of short switch wit...

Страница 18: ...e total amount 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 detec...

Страница 19: ...eat produced by the heater circuit and maintains the oven temperature the user had selected Normal room 10 C to 30 C The reading across the oven sensor thermistor should be within 100K ohm to 300K ohm...

Страница 20: ...voltage will lower the 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 thermom...

Страница 21: ...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 st...

Страница 22: ...ammer circuit Terminals of power relay s and primary circuit of Digital Programmer Circuit When troubleshooting be cautious of possible electrical shock hazard 1 Oven stops in 3 seconds after pressing...

Страница 23: ...efective 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 2 Op...

Страница 24: ...220 IC 220 RY 1 DISPLAY IC 1 IC 1 DISPLAY STEP 1 2 1 1 1 2 1 2 1 1 Trouble 4 Inverter circuit Inverter PCB Repair Procedures Warning for High Voltages 1 Unplug oven when removing outer cabinet 2 never...

Страница 25: ...solder and use solder sucker iron to suck solder 2 Make sure to replace both Q701 and Q702 at a time with the same maker 3 Make sure to apply heat conduction grease between transistor and heat sink 4...

Страница 26: ...nd CN703 2 Insert AC plug through the Amper meter with specified voltage NOTE Current will be changed by the input AC voltage 3 Operate the oven at High power setting for 1 minutes 4 Read input curren...

Страница 27: ...2SA1309AQSTA AERGS215J452 AEVTZ6TLT102 AEDZ10ES2T1 AESZ12JS2T1 A609A4V00GP 1 1 1 2 1 1 2 1 2 1 1 2 1 2 1 1 1 1 1 1 2 1 1 1 4 1 1 CAPACITOR POLYESTER CAPACITOR FILM CAPACITOR FILM CAPACITOR CONNECTOR T...

Страница 28: ...EXPLODED VIEW AND PARTS LIST 28 EXPLODED VIEW...

Страница 29: ...ER AU HEATER AU SENSOR HEATER MOUNTING PLATE H V INVERTER U H V INVERTER U MICRO SWITCH MICRO SWITCH THERMAL CUTOUT MICRO SWITCH FUSE 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 2 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1...

Страница 30: ...MP SHADE CAUTION LABEL 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 4 1 1 1 1 1 2 2 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 1 1 18A 125V WNT EXCEPT WNT WNT EXCEPT ZPE WNT HNE MNQ YNQ YKE KKE KNQ TNE...

Страница 31: ...PACER SCREW LEFT DOOR ARM DOOR KEY SPRING B DOOR A U Ref No Part No Part name Description Pcs Set Remarks D5 D3 D6 D6 D6 D6 D4 D8 D7 D1 D10 D9 D8 WIRING MATERIAL W1 W1 W2 W4 F030A5G00XN F030A5G00ZP F0...

Страница 32: ...0XN F80025G00XN F82844J00XN F02459660AP 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D P CIRCUIT D P CIRCUIT D P CIRCUIT D P CIRCUIT D P CIRCUIT D P CIRCUIT D P CIRCUIT D P CIRCUIT MEMBRANE SWITCH MEMBRANE SWITC...

Страница 33: ...5E90ZP 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 INSTRUCTION MAUNAL INSTRUCTION MAUNAL INSTRUCTION MAUNAL INSTRUCTION MAUNAL EARTH CAUTION LABEL PACKING CASE PAPER PACKING CASE PAPER PACKING C...

Страница 34: ...34 DIGITAL PROGRAMMER CIRCUIT SCHEMATIC DIAGRAM XN 104 10K OPEN 3 3K SHORT 1 5K 16K 6 2K 68K 30K OPEN IC1 JPR1 JPR2 YN TN MN HN SN KN ZP WN...

Страница 35: ...IN 10 MIN SENSOR REHEAT VEGETABLES RICE CONGEE PORRIDGE FISH FROZEN FOOD COOK SOUP FRIED FOODS STEW VEG MEAT MIX CHICKEN MEAT PIECES BEEF LAMB PORK NN C781JF P 1 H 2 AK 3 AI 4 AJ 5 AF 6 AG 7 AH 8 AB 9...

Страница 36: ...S1WBA60B BUZZER AL CHEM CAPACITOR AL CHEM CAPACITOR AL CHEM CAPACITOR AL CHEM CAPACITOR AL CHEM CAPACITOR AL CHEM CAPACITOR AL CHEM CAPACITOR CHIP CAPACITOR CHIP CAPACITOR CHIP CAPACITOR CHIP CAPACITO...

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