Kenmore 721.63682 Скачать руководство пользователя страница 10 | Manualshive

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5-2

MATRIX CIRCUIT FOR TOUCH KEY BOARD

FROZEN

ENTREE

VENT

ON/OFF

VENT

5 SPEED

REHEAT

N.C

POWER

VEGETABLE

N.C

1

N.C

LIGHT

MINUTE

ADD

CLOCK

8

N.C

COOK

TIME

COOK

STOP/

CANCEL

TIMER

START

AUTO

AUTO

POTATO

DEFROST

KITCHEN

AUTO

DINNER

PLATE

LESS

MORE

9

0

POPCORN

PIZZA

SOFTEN

MELT

5

EXPRESS

DEFROST

2

3

N.C

WARM

4

HOLD

SURE

SIMMER

6

7

N.C

13

12

11

9

10

8

1

2

3

4

5

6

7

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Содержание 721.63682

Страница 1: ...BASIC SERVICE MANUAL MODEL 721 63682 FEBRUARY 2003 FOR MICROWAVE HOOD COMBINATION TECHNICAL FLASH R 721 63683 721 63684 721 63689 ...

Страница 2: ...roper alignment integrity and connections d Any defective or misadjusted components in the interlock monitor door seal and microwave generation and transmission systems shall be repaired replaced or adjusted by procedures described in this manual before the oven is released to the owner e A Microwave leakage check to verify compliance with the Federal performance standard should be performed on ea...

Страница 3: ... FOR TOUCH KEY BOARD 5 2 GENERAL INFORMATION FOR SERVICE 6 1 GENERAL PRECAUTIONS IN USE 6 1 TRIAL OPERATION 6 1 FEATURES AND SPECIFICATIONS FEATURES 6 1 SERVICE INFORMATION 7 1 PRECAUTIONS AND REPAIR SERVICE TIPS 7 1 MICROWAVE LEAKAGE TEST 7 2 POWER OUTPUT MEASUREMENT 7 3 DISASSEMBLY INSTRUCTIONS 7 4 INTERLOCK SYSTEM 7 12 INTERLOCK CONTINUITY TEST 7 14 TEST AND CHECKOUT PROCEDURES AND TROUBLESHOOT...

Страница 4: ...er P1 1019 120 V Magnetron 2M261 Cook top Lamp 120 V 20 W Halogen Cavity Lamp 125 V 30 W or 40 W Timer Digital up to 99 min 99 sec in each cooking stage Tray Tempered Safety Glass Overall Dimensions 2915 16 W x167 16 H x153 8 D Oven Cavity Size 231 2 W x103 16 H x141 2 D Effective Capacity of Oven Cavity 2 0 Cu ft Accessories Owner s Manual Cooking Guide Installation Manual Exhaust Adapter Exhaust...

Страница 5: ... operate the magnetron unless it is properly installed Be sure that the magnetron gasket is properly installed around the dome of the tube whenever installing the magnetron Unlike other appliances the microwave oven is high voltage and high current equipment Though it is free from danger in ordinary use extreme care should be taken during repair THE OVEN IS TO BE SERVICED ONLY BY PROPERLY QUALIFIE...

Страница 6: ...ounded at all times In the event of an electrical short circuit grounding reduces the risk of electrical shock The plug must be plugged into an outlet that is properly installed and grounded BEFORE YOU BEGIN READ THE FOLLOWING INSTRUCTIONS COMPLETELY AND CAREFULLY WARNING Improper use of the grounding plug can result in a risk of electric shock Do not under any circumstances cut or remove the thir...

Страница 7: ...CONTROL PANEL 4 1 OPERATING INSTRUCTIONS 4 8 9 11 14 16 13 5 6 10 12 15 17 20 23 26 24 18 3 2 7 19 22 25 28 27 21 1 ...

Страница 8: ...at the set cook power to your cooking cycle 13 Less Touch this pad to subtract 10 seconds of cook time each time you press it 14 More Touch this pad to add 10 seconds of cook time each time you press it 15 Start Touch this pad to start a function If you open the door after the oven begins to cook retouch Start 16 Stop Clear Touch this pad to erase an incorrect command cancel a program during cooki...

Страница 9: ...5 1 SCHEMATIC DIAGRAM OVERALL CIRCUIT DIAGRAM ...

Страница 10: ...HEAT N C POWER VEGETABLE N C 1 N C LIGHT MINUTE ADD CLOCK 8 N C COOK TIME COOK STOP CANCEL TIMER START AUTO AUTO POTATO DEFROST KITCHEN AUTO DINNER PLATE LESS MORE 9 0 POPCORN PIZZA SOFTEN MELT 5 EXPRESS DEFROST 2 3 N C WARM 4 HOLD SURE SIMMER 6 7 N C 13 12 11 9 10 8 1 2 3 4 5 6 7 ...

Страница 11: ... seconds D After about 5 minutes make sure the primary interlock switch the secondary interlock switch and the interlock monitor switch operate properly by opening and closing the door several times Touch the START key each time the door is closed E Continue operating the unit Two short and a long beep sound signal is heard when the time is up The unit will shut off automatically F Confirm the wat...

Страница 12: ...All service adjustments should be made for minimum microwave energy leakage readings 3 Do not operate the unit until it is completely repaired if any of the following conditions exist The unit must not be operated a The door does not close firmly b The hinge is broken c The door seal is damaged d The door is bent or warped or there is any other visible damage on the unit that may cause microwave e...

Страница 13: ...sity of the microwave radiation leakage emitted by the microwave oven should not exceed 1mW cm sq And always start measuring of an unknown field to assure safety for operating personnel from radiation leakage NOTE The standard is 5mW cm sq while in the customer s home 1mW cm sq stated here is manufacturer s own voluntary standard for units in customer s home EQUIPMENT TESTER VOLTS DC AC Ohmmeter M...

Страница 14: ...ve been used 3 At least once a year have the electromagnetic energy leakage monitor checked for calibration by its manufacturer 1 Microwave power output measurement is made with the microwave oven supplied at its rated voltage and operated at its maximum microwave power setting with a load of 1000 5 g of potable water 2 The water is contained in a cylindrical borosilicate glass vessel having a max...

Страница 15: ... a screw securing the control panel assembly to the oven cavity 2 Remove the control panel with pushing it upward 3 Remove the connectors CN1 and sensor CN5 wire leads RY2 CN2 CN4 from the circuit board 4 Remove 3 screws securing the circuit board 5 Remove the FPC connector from the terminal socket following HOW TO REMOVE THE FPC CONNECTOR on the next page 6 Remove the circuit board from the contr...

Страница 16: ... F P C connector into the terminal socket securely with the fingers 2 Hold the plastic fastener with thumb and forefinger of the other hand and push it slowly into the terminal socket Figure 6 NOTE When reconnecting the F P C connector make sure that the holes on the F P C connector are properly engaged with the hooks on the plastic fastener 3 Lock the level of the plastic fastener into the hook o...

Страница 17: ... 2 screws securing it to the out case 4 Remove two screws on the left central edge and two screws on the right central edge of Base plate Remove the Mount All from the out case by removing one screw securing it to the out case 5 Remove four screws of the rear cavity 6 Remove the outcase with disconnecting power cord connector Vent Grille Door Mount All Mounting Plate Out Case Controller Power code...

Страница 18: ...7 12 Latch Board Secondary Interlock Switch Interlock Monitor Switch Interlock Switch Primary Latch Board WH from Inverter YL from Turntable Motor PK from Cooktop lamp BL from Oven Thermostat Secondary Interlock Switch Monitor Interlock Switch Primary Interlock Switch PK from P C B BL from P C B WH from Inverter RD from Inverter Figure 9 Figure 10 WIRE COLOR SYMBOL COLOR WH BK BR RD BL PK GY N P W...

Страница 19: ...rvice adjustments should be made for minimum microwave energy leakage readings E REMOVING THE INVERTER MODULE Figures 13 Through 15 1 Remove the vent grille by loosening two screws Figure 11 2 Remove the outcase See page 7 6 3 Remove the base plate by loosening four screws Figure 13 4 Disconnect two leadwire of the fan motor assembly 5 Disconnect the leadwire of the inverter PCB and H V cable of t...

Страница 20: ...G DOOR Figure 19 1 Remove the dielectric choke by using knife blade or small screw driver etc 2 Remove two screws securing it to the door handle CAUTION Be careful not to damage door seal plate with the screwdriver NOTES After replacing the door be sure to check that the primary interlock switch the secondary interlock switch and the interlock monitor switch is in good operating normally After rep...

Страница 21: ...ves may leak from the clearance between the door and the oven J REMOVING THE VENTILATION MOTOR 1 Remove the mounting plate by loosening mounting plate screws 1 or 2 screws securing it to the back plate See Figure 20 2 Remove MOUNT ALL loosening one screw loosening one screw securing the ventilation Motor and back plate See Figure 21 a 3 Carefully pull the ventilation motor ASS Y out of the microwa...

Страница 22: ...crews securing it to the oven cavity Figure 23 4 Disconnect the leadwire from the turntable motor terminals 5 Remove the 1 screws securing the turntable motor to the oven cavity ASS Y Figure 24 NOTES Remove the leadwire from the turntable motor VERY CAREFULLY Be sure to grasp the connector not the wires when removing Wire Leads Turntable Motor Figure 24 Figure 22 Figure 23 7 11 ...

Страница 23: ...justment of the latch board may not be necessary Go to Steps 5 and 6 to check the sequence of the switches NOTE To correct sequence of the Primary Interlock Switch Secondary Interlock Switch and the Interlock Monitor Switch is very important If any gap is larger than 1 64 0 5 mm you will need to adjust the latch board Go to step 3 and follow all steps in order ADJUST THE LATCH AND SWITCH CLOSING 3...

Страница 24: ...ro to the body of the switches in the following sequence Interlock Monitor Switch Primary Interlock Switch Secondary Interlock Switch NOTE The Interlock Monitor Switch is an added safety check on the Primary and Secondary Interlock Switches If the Primary and Secondary Interlock Switches allow the oven to operate with the door open the Monitor Switch will blow the fuse 7 When you achieve the prope...

Страница 25: ...When the secondary switch operation is abnormal make the necessary adjustment or replace the switch only with the same type of switch C MONITOR SWITCH TEST Disconnect the wire lead from the monitor switch Connect the ohmmeter leads to the common COM and normally closed NC terminals of the switch The meter should indicate closed circuit in the door open condition When the door is closed meter shoul...

Страница 26: ...removed MAGNETRON Lead wires removed Note Do not try to repair the inverter board nor try to make any adjustments to the board Check wiring to the inverter 1 Unplug the oven s main power supply 2 Visually inspect 4 connectors on the inverter board CN701 CN702 CN703 E701 to see whether there are any signs of failure due to loose wires bad crimping sign of overheating etc 1 Measure the resistance Oh...

Страница 27: ...e dry 4 The oven will not generate microwave energy for the first 28 seconds of the sensor cooking cycle 1 Disconnect sensor connector from micom computer board 2 Measure resistance terminal to terminal Select the ohm scale on the meter NOTE MAKE SURE THE LEAD WIRES ARE IN THE CORRECT POSITION WHEN REMOVING THE LEAD WIRES FROM THE PARTS BE SURE TO GRASP THE CONNECTOR NOT THE WIRES NOTE When testin...

Страница 28: ...0 150 ohms Abnormal Infinite or several ohms A B 76 ohms B C 22 ohms A C 96 ohms Normal Approx 2 4K ohms Abnormal Infinite or several ohms A RD B BK C WH Relay 2 Normal Approx 125 to 135 ohms Abnormal Infinite or several ohms Normal ON 0 ohm OFF Infinite ohms Abnormal Infinite or several ohms Measure the resistance Ohm meter scale Rx100 RELAY2 Check for continuity of relay 2 with an ohm meter Remo...

Страница 29: ... resistance between terminal pins of connector KEY CONNECTOR NOTE When reconnecting the FPC connector make sure that the holes on the FPC connector are properly engaged with hooks on the plastic fastener MATRIX CIRCUIT FOR TOUCH KEY BOARD CONNECTOR KEY CON For detail matrix circuit of each model refer to page 5 2 7 18 COMPONENTS TEST PROCEDURES RESULTS TOUCH KEY BOARD Resistance value When When no...

Страница 30: ...is touched Improper operation of the primary interlock secondary interlock switches and or the interlock monitor switch Malfunction of the high voltage transformer the high voltage capacitor including the diode the magnetron the blower motor or the circuit board PROBLEMS CAUSES NOTES If the fuse is blown by an improper switch operation replace all switches and the fuse at the same time After repla...

Страница 31: ...eplace the circuit board Defective FAN motor Defective Wire Assembly Replace FAN motor NO NO YES YES NO NO YES YES GOOD PROBLEM A Oven lamp turns on without touching START key when the door is closed Remove the mate connector of I O CON from the circuit board Does the unit still operate GOOD Replace the circuit board Replace Wire Assembly PROBLEM B Oven lamp turns on When the door is closed and ST...

Страница 32: ...put current is less than 0 5 A there is no input to the inverter 2 The start function fails to operate but the high voltage Systems the interlock switches the door sensing and the relay check good 3 The unit with a normal relay continuously operates 4 The buzzer does not sound or continues to sound 5 Some segments of one or more digits do not light up or they continue to light up or segments light...

Страница 33: ...control panel Always touch yourself to ground while working on this panel to discharge any static charge built up in your body Micom model only CONDITION Microwave oven does not work Inserting many plugs into one outlet and using them at the same time blown fuse or breaker Microwave oven plug is not inserted tightly Using metallic ware and allowing it to touch the oven wall Sparks occur Inconsiste...

Страница 34: ... not turn on after setting cooking cycle 11 Display time of day does not reappear when cooking is finished TROUBLE 1 The following visual conditions indicate a probable defective control circuit CONDITION CHECK RESULT CAUSE REMEDY 1 No input can be programmed Continuity No continuity Defective PCB assembly Loose connection Replace PCB assembly Connect them tightly Check the conn ection between mem...

Страница 35: ...imary monitor switches and P C B Assembly Check continuity of monitor switch with door closed Check continuity of primary switch with door opened Disconnect one side of the lead wires connected from Inverter Replace fuse 2 Fuse does not blow No continuity Continuity No continuity Defective power supply cord Replace power supply cord Defective thermostat Replace thermostat Check continuity of therm...

Страница 36: ...on between CN1 connector and PCB assembly TROUBLE 3 Display shows all figures set but oven does not start cooking while desired program times are set and START pad is touched 3 The display shows F 9 No continuity Continuity Loose connection Connect them tightly Check the connection between magnetron control PCB and inverter module Abnormal Normal Defective Relay2 Replace PCB assembly Check the Rel...

Страница 37: ...Y Output is low Lower than 90 of rating voltage Normal Defective Magnetron Replace Magnetron Decrease in power source voltage with load Suggest customer contact local electric power utility co or qualified electrician Check the power source voltage 4 The display shows F 4 Abnormal Normal Loose connection Connect them tightly Check the connection between sensor wire and control PCB Abnormal Normal ...

Страница 38: ...8 1 EXPLODED VIEW DOOR PARTS 1004 1000 1005 1008 1003 1381 FOR 63683 ONLY 1009 W109 1011 1007 1006 W171 EV Model 721 63682 721 63683 721 63684 721 63689 ...

Страница 39: ...8 2 CONTROLLER PARTS For Model 63689 63682 63684 2004 2002 2000 2007 2009 2008 2006 W106 For Model 63683 2004 2007 2009 2008 2006 W106 2381 ...

Страница 40: ...W138 W142 W121 W107 W138 W142 W109 W138 W142 3001 3029 3010 3031 6000 3026 5036 3003 3036 3033 3005 3032 5382 3018 3024 For Model 63682 63684 For Model 63682 63684 For Model 63683 63689 For Model 63683 63689 W149 W149 W150 3029 ...

Страница 41: ...8 4 LATCH BOARD PARTS 4000 W111 4001 4002 4003 4002 4004 EV ...

Страница 42: ...8 5 INTERIOR PARTS I 3002 5026 5049 5025 5003 5057 5012 5009 5052 5000 3007 5066 5048 5044 3009 W105 3004 5035 3008 3017 W109 W109 W109 W109 W101 W109 W109 W109 W109 W130 W146 W101 3382 EV 5024 3054 ...

Страница 43: ...8 6 INTERIOR PARTS II EV 5027 5011 5016 3027 W144 W109 5019 5041 5014 5010 5001 5045 5015 W144 5038 5037 5029 5006 W150 W150 ...

Страница 44: ...8 7 INSTALLATION PARTS EV 6008 6009 6010 6011 ...

Страница 45: ...8 16 SCHEMATIC DIAGRAM OF P C B ...

Страница 46: ...8 17 PRINTED CIRCUIT BOARD ...

Страница 47: ...P NO 3828W5S2629 Printed in Korea ...

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