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Sears 721.88502800 Скачать руководство пользователя страница 43

-8-9-

INSTALLATION PARTS

6008

6011

6009

6010

MFL1

USE 

& 

CARE

MEZ1

COOKING 

GUIDE 

LABEL

MBM4

TEMPLATE

UPPER

MBM5

TEMPLATE

WALL

MFL3

INSTALLATION

MANUAL

#EV#

Содержание 721.88502800

Страница 1: ...DIVISION 22 BASIC FIELD MANUAL FOR MICROWAVE HOOD COMBINATION MODEL 721 88502800 721 88503800 721 88509800 June 2008 MODEL 721 88502 721 88503 721 88509...

Страница 2: ...oper 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 ad...

Страница 3: ...S 4 2 OVERALL CIRCUIT DIAGRAM 5 1 SCHEMATIC DIAGRAM 5 1 MATRIX CIRCUIT FOR TOUCH KEY BOARD 5 2 GENERAL INFORMATION FOR SERVICE 6 1 GENERAL PRECAUTIONS IN USE 6 1 TRIAL OPERATION 6 1 FEATURES AND SPECI...

Страница 4: ...k Switch Interlock Monitor Switch Magnetron 2M282J Toshiba Cook top Lamp 120 V 20 W Halogen Cavity Lamp 120 V 20 W Halogen Timer Digital up to 99 min in each cooking stage Tray Tempered Safety Glass O...

Страница 5: ...OUCH any oven components or wiring during operation BEFORE TOUCHING any parts of the oven always remove the power plug from the outlet Remove your watches whenever working close to or replacing the Ma...

Страница 6: ...o etc to prevent interference GROUNDING INSTRUCTIONS For personal safety this appliance must be fully grounded at all times In the event of an electrical short circuit grounding reduces the risk of el...

Страница 7: ...4 1 OPERATING INSTRUCTIONS CONTROL PANEL 1 2 6 4 5 9 3 7 8 12 10 11 15 13 17 16 14 20 18 19...

Страница 8: ...Use this dial to select oven functions such as quantities of food and cooking times powers 6 BACK Press this pad to step back one or more levels in the program process 7 AUTO DEFROST Touch this pad to...

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

Страница 10: ...5 2 MATRIX CIRCUIT FOR TOUCH KEY BOARD...

Страница 11: ...he cavity light comes on The unit will begin cooking and the display window will show the time counting down by seconds D After about 5 minutes make sure the primary interlock switch the secondary int...

Страница 12: ...the limit of 5 mW cm2 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...

Страница 13: ...ervicing The power density 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 pe...

Страница 14: ...this manual have been used 3 At least once a year have the electromagnetic energy leakage monitor checked for calibration by its manufacturer POWER OUTPUT MEASUREMENT 1 Microwave power output measurem...

Страница 15: ...CIRCUIT BOARD Figures 1 2 and 3 1 Remove a screw securing the control panel assembly to the oven cavity 2 Remove the control panel with pushing it upward 3 Remove the connectors and sensor wire leads...

Страница 16: ...INSERT THE F P C CONNECTOR Follow the steps below as illustrated in Figures 6 and 7 to insert the F P C connector 1 Insert the F P C connector into the terminal socket securely with the fingers 2 Hold...

Страница 17: ...ng plate by turning the screws 1 or 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 t...

Страница 18: ...e two screws securing the Latch Board 3 Make necessary replacements and check microwave energy leakage according to ADJUSTMENT PROCEDURES on page 7 12 RD RD BK BK RD from turntable Motor MGT Fan Motor...

Страница 19: ...the magnetron make sure that its dome does not hit any adjacent parts or it may be damaged When replacing the magnetron be sure to install the magnetron gasket in the correct position and be sure that...

Страница 20: ...o check that the primary interlock switch the secondary interlock switch and the interlock monitor switch is in good operating normally After replacing the door check for microwave energy leakage with...

Страница 21: ...ounted properly microwaves may leak from the clearance between the door and the oven I REMOVING THE VENTILATION MOTOR 1 Remove the mounting plate by loosening mounting plate screws 1 or 2 screws secur...

Страница 22: ...ct the leadwire from the turntable motor terminals 5 Remove the 1 screws securing the turntable motor to the oven cavity ASS Y Figure 21 NOTES Remove the leadwire from the turntable motor VERY CAREFUL...

Страница 23: ...microwave oven on its side so that you can see the latch board and the switches as shown in Figure 23 a 2 Close the door tightly and check gaps A and B to be sure they are no more than 1 64 0 5 mm See...

Страница 24: ...o 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 P...

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 sw...

Страница 26: ...ads 2 Measure resistance ohm meter scale Rx1 Primary winding High Low Secondary winding Filament winding 3 Measure resistance ohm meter scale Rx1000 Primary winding to ground Filament winding to groun...

Страница 27: ...cale Rx1000 CAPACITOR DIODE Some inexpensive ohm meters may indicate infinite resistance in both directions 1 Measure continuity ohm meter scale Rx1 2 Remove the lead wires and operate oven at power l...

Страница 28: ...0 ohm 1 Remove lead wires 2 Measure resistance ohm meter scale Rx1 1 Remove wire leads 2 Measure resistance ohm meter scale Rx1000 VENTILATION MOTOR TURNTABLE MOTOR 1 Disconnect sensor connector from...

Страница 29: ...lastic fastener MATRIX CIRCUIT FOR TOUCH KEY BOARD CONNECTOR KEY CON TOUCH KEY BOARD Resistance value When touched Less than 400 ohms When not touched More than 1 mega ohm FPC CONNECTOR Top NOTES A MI...

Страница 30: ...ADJUSTMENT PROCEDURES on page 7 12 when the primary interlock secondary interlock switches and or the interlock monitor switches are adjusted or replaced Fuse blows immediately after the door is close...

Страница 31: ...ithout touching START key when the door is closed GOOD Remove the mate connector of I O CON from the circuit board Does the unit still operate Defective Wire Assembly Replace the circuit board Replace...

Страница 32: ...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...

Страница 33: ...ru E BUZZER Problems F PROBLEM A PLEASE SET TIME OF DAY does not appear in display window when power supply cord is plugged into wall outlet PROBLEM B Display does not show correct numbers and or corr...

Страница 34: ...M E Display does not start countdown when START key is touched Check 1 TOUCH KEY BOARD START KEY FUNCTION Check 1 AIR VENTS PROBLEM D Unit operation seems to be normal but no heating is produced in ov...

Страница 35: ...7 24 PROBLEM E Unit does not heat up even if display counts down when START key is touched for HIGH POWER cooking Check 1 PRIMARY AND SECONDARY INTERLOCK SWITCHES 2 THERMOSTAT 1 2...

Страница 36: ...7 25 PROBLEM F No buzzing when touching the key between stages or at end of cooking 1 PROBLEM G Ventilation fan does not operate when VENT ON OFF key is touched 1 Check 1 POWER SUPPLY 2 FUSE...

Страница 37: ...8 1 EXPLODED VIEW DOOR PARTS I 1005 1382 1008 1000 1004 1007 1006 1011 W109 W171 1009 EV FOR MODELS...

Страница 38: ...8 3 CONTROLLER PARTS I 2030 MBM2 2009 2041 W136 2004 2006 2400 2021 2000 2002 2381 2008 2007 W130 W136 EV FOR MODELS...

Страница 39: ...8 5 OVEN CAVITY PARTS 3031 3001 3005 3026 3025 3011 3018 6000 6009 3036 3037 3029 3102 3032 5382 3010 3024 3003 W109 W178 W202 W121 W142 W142 W142 9000 EV...

Страница 40: ...8 6 LATCH BOARD PARTS 4000 W102 4001 4002 4003 4002 4004 EV...

Страница 41: ...RIOR PARTS I 3002 3381 Back Roller part is Tray Assembly Included 5003 5007 5012 5008 5049 3009 W105 W173 5051 3007 5023 5009 5002 5000 5018 W108 W108 W109 W109 W109 W110 W101 5058 5043 5062 W210 5024...

Страница 42: ...8 8 INTERIOR PARTS II W150 W150 5707 3027 5041 5027 5011 5014 5010 5037 5029 5006 5016 W144 W109 5001 5412 W178 5045 5382 5800 W202 3005 EV...

Страница 43: ...8 9 INSTALLATION PARTS 6008 6011 6009 6010 MFL1 USE CARE MEZ1 COOKING GUIDE LABEL MBM4 TEMPLATE UPPER MBM5 TEMPLATE WALL MFL3 INSTALLATION MANUAL EV...

Страница 44: ...L ABSOLUTE HUMIDITY SENSOR YL BK RD RD RD V1 BK RD RD BK BL BL BK BK BK BN RD BL WH WH WH WH WH YL YL YL BL BK BL WH YL RD PK 1 2 3 1 1 2 2 3 3 5 CN2 CN4 RY10 POWER RELAY 1 2 3 4 5 6 1 2 3 4 5 6 1 2 1...

Страница 45: ...tic changing values rapidly in the mV scale Test Results H V Diode RECTIFIER Other component tests Components Test Results Components Test Results 1 Measure continuity ohm meter scale Rx1 2 Remove the...

Страница 46: ...er is energized relays will close and complete circuit N L FUSE 20A OVEN TCO WH WH WH BK BK BL BL BK 1 UNIT IS PLUGGED IN CLOCK DISPLAY ON POWER TRANS 3 1 2 MICROWAVE COOKING ON RY1 O L 3 VENTOR MOTOR...

Страница 47: ...P NO MFL57016001 Printed in Korea...

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