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FMV56DCF
In the interest of user-safety the oven should be restored to its original condition and only parts identical to those specified should
be used.
WARNING TO SERVICE PERSONNEL: Microwave ovens contain circuitry capable of producing very high voltage and
current. Contact with the following parts may result in a severe, possibly fatal, electrical shock. (High Voltage Capaci-
tor, High Voltage Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc..)
BEFORE SERVICING ....................................................................................................... INSIDE FRONT COVER
WARNING TO SERVICE PERSONNEL................................................................................................................. 3
MICROWAVE MEASUREMENT PROCEDURE..................................................................................................... 4
FOREWORD AND WARNING ............................................................................................................................... 5
PRODUCT SPECIFICATIONS ............................................................................................................................... 6
GENERAL INFORMATION.................................................................................................................................... 6
OPERATION........................................................................................................................................................... 9
TROUBLESHOOTING GUIDE ............................................................................................................................. 3
TEST PROCEDURE ............................................................................................................................................ 5
TOUCH CONTROL PANEL ASSEMBLY .............................................................................................................. 25
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE................................................................. 29
PICTORIAL DIAGRAM ......................................................................................................................................... 37
POWER UNIT CIRCUIT ....................................................................................................................................... 38
LSI UNIT CIRCUIT ............................................................................................................................................... 39
PRINTED WIRING BOARD.................................................................................................................................. 40
PARTS LIST ........................................................................................................................................................ 4
PACKING AND ACCESSORIES .......................................................................................................................... 45
This document has been published to be used for after sales service only. The contents are subject to
change without notice.
Publication # 5995505459
ELECTROLUX
SERVICE MANUAL
TABLE OF CONTENTS
P. O. Box 212378, Augusta, GA, 30917
800•944•9044
OVER THE RANGE
MICROWAVE OVEN
FMV156DBE
FMV156DSE
MODELS
FMV156DQE
FMV156DCF
FMV156DBE
FMV156DSE
FMV156DQE
FMV156DCF
S95M241FM156E
Page
P/N 316439263
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Related Manuals for Electrolux FMV156DBE
Summary of Contents for Electrolux FMV156DBE
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Page 1: Table Of Contents
PACKING AND ACCESSORIES .......................... 45 This document has been published to be used for after sales service only. The contents are subject to change without notice. ElEctrolux HoME ProDuctS, INc. P. O. Box 212378, Augusta, GA, 30917 800•944•9044 Publication # 5995505459... -
Page 2: Precautions To Be Observed Before And During Servicing To Avoid Possible Exposure To Excessive Microwave Energy
Before servicing an operative unit, perform a microwave emission check as per the Microwave Measurement Procedure outlined in this service manual. If microwave emissions level is in excess of the specified limit, contact ELECTROLUX HOME PRODUCTS, INC. immediately. If the unit operates with the door open, service person should ) tell the user not to operate the oven and 2) contact ELECTROLUX HOME PRODUCTS, INC. -
Page 3: Warning To Service Personnel
FMV156DBE FMV156DSE FMV156DQE FMV156DCF WARNING TO SERVICE PERSONNEL Microwave ovens contain circuitry capable of pro- ducing very high voltage and current, contact with following parts may result in a severe, possibly fatal, electrical shock. (Example) High Voltage Capacitor, High Voltage Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc.. -
Page 4: Microwave Measurement Procedure
FMV156DBE FMV156DSE FMV156DQE FMV156DCF MICROWAVE MEASUREMENT PROCEDURE A. Requirements: ) Microwave leakage limit (Power density limit): The power density of microwave radiation emitted by a microwave oven should not exceed mW/cm at any point 5cm or more from the external surface of the oven, measured prior to... -
Page 5: Foreword And Warning
GENERAL INFORMATION FMV156DBE / FMV156DSE FMV156DQE / FMV156DCF FOREWORD OPERATION This Manual has been prepared to provide Electrolux Home Prod- ucts Service Personnel with Operation and Service Information for the TROUBLESHOOTING GUIDE AND ELECTROLUX OVER THE RANGE MICROWAVE OVENS, FM- TEST PROCEDURE V56DBE, FMV56DSE, FMV56DQE, FMV56DCF. -
Page 6: Product Specifications
FMV156DBE FMV156DSE FMV156DQE FMV156DCF PRODUCT SPECIFICATION ITEM DESCRIPTION Power Requirements 20 Volts / 4. Amperes 60 Hertz Single phase, 3 wire grounded Power Output 950 watts (IEC TEST PROCEDURE) Operating frequency of 2450MHz Case Dimensions Width 29-5/6" Height 5- 9/6"... -
Page 7: Oven Diagram
FMV156DBE FMV156DSE FMV156DQE FMV156DCF Electrical Requirements The oven is equipped with a 3-prong grounding plug. DO NOT UNDER ANY CIRCUMSTANCES CUT OR REMOVE THE GROUNDING PIN FROM THE PLUG. The power supply cord and plug must be connected to a separate 20 Volt AC, 60 Hz, 5 Amp. or more dedicated line, using a grounded receptacle. - Page 8 FMV156DBE FMV156DSE FMV156DQE FMV156DCF CONTROL PANEL NOTE: Some one-touch cooking features such as "Plus Min" are disabled after three minutes when the oven is not used. These features are automatically enabled when the door is opened and closed or Clear-Off button is pressed.
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Page 9: Operation
FMV156DBE FMV156DSE FMV156DQE FMV156DCF OPERATION DESCRIPTION OF OPERATING SEQUENCE of the primary interlock switch, and door sensing switch The following is a description of component functions dur- is mechanically associated with the door so that it will ing oven operation. - Page 10 FMV156DBE FMV156DSE FMV156DQE FMV156DCF VENTILATION METHODS HOT AIR EXHAUST . VERTICAL VENTING For this venting method, hot air rising from the conventional range below is drawn in by the hood fan motor through the grease filters at the right and left sides of the base...
- Page 11 FMV156DBE FMV156DSE FMV156DQE FMV156DCF SCHEMATIC NOTE: CONDITION OF OVEN . DOOR CLOSED. CLOCK APPEARS ON DISPLAY. MAG. TEMP. FUSE CAVITY THERMAL 120VAC CUTOUT 60Hz CONTROL UNIT N.O. COM. POWER TRANSFORMER DOOR SENSING SWITCH HOOD FAN THERMAL CUT OUT HUMIDITY (RY2)
- Page 12 FMV156DBE FMV156DSE FMV156DQE FMV156DCF DESCRIPTION AND FUNCTION OF COMPONENTS CAUTION: BEFORE REPLACING A BLOWN MONITOR DOOR OPEN MECHANISM FUSE TEST THE DOOR SENSING SWITCH, The door is opened by pulling the door handle, refer to the SECONDARY INTERLOCK RELAY (RY2), RE- Figure D-.
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Page 13: Troubleshooting Guide
FMV156DBE FMV156DSE FMV156DQE FMV156DCF TROUBLESHOOTING GUIDE Never touch any part in the circuit with your hand or an uninsulated tool while the power supply is con- nected. When troubleshooting the microwave oven, it is helpful to follow the Sequence of Operation in performing the checks. Many of the possible causes of trouble will require that a specific test be performed. - Page 14 FMV156DBE FMV156DSE FMV156DQE FMV156DCF CK = Check / RE = Replace...
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Page 15: Test Procedure
FMV156DBE FMV156DSE FMV156DQE FMV156DCF TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER MAGNETRON ASSEMBLY TEST . Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. 4. To test for an open filament, isolate the magnetron from the high voltage circuit. A continuity check across the magnetron filament leads should indicate less than ohm. - Page 16 FMV156DBE FMV156DSE FMV156DQE FMV156DCF TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER (HIGH VOLTAGES ARE PRESENT AT THE HIGH VOLTAGE TERMINAL, SO DO NOT ATTEMPT TO MEASURE THE FILAMENT AND HIGH VOLTAGE.) HIGH VOLTAGE RECTIFIER TEST . Disconnect the power supply cord, and then remove outer case.
- Page 17 FMV156DBE FMV156DSE FMV156DQE FMV156DCF TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER CAUTION: IF THE TEMPERATURE FUSE INDICATES AN OPEN CIRCUIT AT ROOM TEMPERATURE, REPLACE TEMPERATURE FUSE. 5. Reconnect all leads removed from components during testing. 6. Reinstall the outer case (cabinet).
- Page 18 FMV156DBE FMV156DSE FMV156DQE TEST PROCEDURES FMV156DCF PROCEDURE COMPONENT TEST LETTER SECONDARY INTERLOCK RELAY (RY2) . Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. 4. Disconnect two (2) wire leads from the male tab terminals of the Secondary Interlock Relay. Check the state of the relay contacts using a ohmmeter.
- Page 19 FMV156DBE FMV156DSE FMV156DQE TEST PROCEDURES FMV156DCF PROCEDURE COMPONENT TEST LETTER HOOD THERMAL CUT-OUT TEST . Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. 4. A continuity check across the thermal cut-out terminals should indicate an open circuit unless the temperature of the thermal cut-out reaches approximately 40½F(60½C) or more.
- Page 20 FMV156DBE FMV156DSE FMV156DQE FMV156DCF TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER TOUCH CONTROL PANEL ASSEMBLY TEST The touch control panel consists of circuits including semiconductors such as LSI, ICs, etc. Therefore, unlike conventional microwave ovens, proper maintenance cannot be performed with only a voltmeter and ohmmeter.
- Page 21 FMV156DBE FMV156DSE FMV156DQE FMV156DCF TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER When testing is completed, ) Disconnect the power supply cord. 2) Open the door and block it open. 3) To discharge high voltage capacitor, wait for 60 seconds. 4) Reconnect all leads removed from components during testing.
- Page 22 FMV156DBE FMV156DSE FMV156DQE FMV156DCF TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER 7. After that procedure, re-connect the power supply cord. 8. Check voltage between normal open terminal of the relay RY2 and the normal open terminal of the relay RY on the control unit with an A.C. voltmeter.
- Page 23 FMV156DBE FMV156DSE FMV156DQE FMV156DCF TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER STEPS OCCURRENCE CAUSE OR CORRECTION Only pattern at "a" is broken. *Insert jumper wire J and solder. Pattern at "a" and "b" are broken. *Insert the coil RCILF2003YAZZ between "c" and "d".
- Page 24 FMV156DBE FMV156DSE FMV156DQE FMV156DCF TEST PROCEDURES PROCEDURE COMPONENT TEST LETTER NOISE FILTER TEST . Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. 4. Disconnect the leads to the primary of the power transformer.
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Page 25: Touch Control Panel Assembly
FMV156DBE FMV156DSE FMV156DQE FMV156DCF TOUCH CONTROL PANEL ASSEMBLY OUTLINE OF TOUCH CONTROL PANEL The touch control section consists of the following units Symbol Voltage Application as shown in the touch control panel circuit. -5.3V LSI(IC) () Key Unit 3) Synchronizing Signal Circuit... - Page 26 FMV156DBE FMV156DSE FMV156DQE FMV156DCF Pin No. Signal Description Back light circuit (Light emitting diodes) driving signal. To input signal which communicates the door open/close information to LSI. Door close "H" level signal (0V). Door open "L" level signal (-5V). 9-0 AN-AN0 Terminal not used.
- Page 27 FMV156DBE FMV156DSE FMV156DQE FMV156DCF Pin No. Signal Description Key strobe signal. Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one of G7 line keys on key matrix is touched. Key strobe signal. Signal applied to touch-key section. A pulse signal is input to P43-P46 terminal while one of G6 line keys on key matrix is touched.
- Page 28 FMV156DBE FMV156DSE FMV156DQE FMV156DCF SERVICING 1. Precautions for Handling Electronic Components transformer. This unit uses CMOS LSI in the integral part of the circuits. 4) Re-install the outer case (cabinet). When handling these parts, the following precautions 5) Re-connect the power supply cord after the outer should be strictly followed.
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Page 29: Component Replacement And Adjustment Procedure
FMV156DBE FMV156DSE FMV156DQE FMV156DCF COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE WARNING AGAINST HIGH VOLTAGE: Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts may result in severe, possibly fatal, electric shock. (Example) High Voltage Capacitor, Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc.. - Page 30 FMV156DBE FMV156DSE FMV156DQE FMV156DCF 5. Pull the hood exhaust louver from the oven cavity by Push pushing the right and left tabs of the hood exhaust louver to remove. Hood exhaust louver 6. Now, the hood exhaust louver is free.
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Page 31: Magnetron Removal
FMV156DBE FMV156DSE FMV156DQE FMV156DCF the oven cavity top plate and release the snap band from 6. Now, the hood fan motor is free. the hood duct. 5. Remove the hood fan motor from the oven cavity top plate by lifting it up. - Page 32 FMV156DBE FMV156DSE FMV156DQE FMV156DCF COOLING FAN MOTOR REMOVAL . Disconnect the power supply cord, remove the oven 5. Remove the fan blade from the shaft of the fan motor by from wall and remove outer case (Refer to procedure pulling and rotating the fan blade with your hand.
- Page 33 FMV156DBE FMV156DSE FMV156DQE FMV156DCF TURNTABLE MOTOR AND FOOD LAMP SOCKETS REMOVAL . Disconnect the power supply cord. TURNTABLE MOTOR 2. Open the door and block it open. 9. Disconnect the wire leads from the turntable motor. 3. To discharge the high voltage capacitor, wait for 60 Remove one () screw holding turntable motor to seconds.
- Page 34 FMV156DBE FMV156DSE FMV156DQE FMV156DCF fixing plate. 3. When attaching the key unit to the key fixing plate, adjust 4. Release the two (2) tabs holding the power unit to the the upper edge and right edge of the key unit to the correct key fixing plate.
- Page 35 FMV156DBE FMV156DSE FMV156DQE FMV156DCF After adjustment, check the following. Latch heads . In and out play of door remains less than 0.5mm when Latch hook in the latched position. First check upper position of latch hook, pushing and pulling upper portion of door toward the oven face.
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Page 36: Door Disassembly
FMV156DBE FMV156DSE FMV156DQE FMV156DCF DOOR DISASSEMBLY DOOR FRAME ASSEMBLY . Disconnect the power supply cord. 2. Open the door and block it open. . Remove two (2) screws holding the door panel to the 3. To discharge the high voltage capacitor, wait for 60 door frame assembly. -
Page 37: Pictorial Diagram
FMV156DBE FMV156DSE FMV156DQE FMV156DCF NOISE FILTER BOARD... -
Page 38: Power Unit Circuit
FMV156DBE FMV156DSE FMV156DQE FMV156DCF Figure S-2. Power Unit Circuit... -
Page 39: Lsi Unit Circuit
FMV156DBE FMV156DSE FMV156DQE FMV156DCF... -
Page 40: Printed Wiring Board
FMV156DBE FMV156DSE FMV156DQE FMV156DCF Figure S-4. Printed Wiring Board... -
Page 41: Parts List
FMV156DBE FMV156DSE FMV156DQE FMV156DCF PARTS LIST Note: The parts marked “∆” may cause undue microwave exposure. The parts marked “*” are used in voltage more than 250V. REF. NO. PART NO. DESCRIPTION Q'TY CODE ELECTRIC PARTS FC-QZB050MRK0A High voltage assembly... -
Page 42: Door Parts
FMV156DBE FMV156DSE FMV156DQE FMV156DCF REF. NO. PART NO. DESCRIPTION Q'TY CODE PDUC-B114MRF0 Hood duct L PDUC-B174MRP0 Fan duct PDUC-B117MRF0 Orifice TINSEB386MRR1 Installation instructions DOOR PARTS CDORFB410MRK0 Door assembly [FMV156DBD] CDORFB413MRK0 Door assembly [FMV156DSD] CDORFB414MRK0 Door assembly [FMV156DQD] CDORFB411MRK0 Door assembly [FMV156DCE]... - Page 43 FMV156DBE FMV156DSE FMV156DQE FMV156DCF OVEN AND CABINET PARTS...
- Page 44 FMV156DBE FMV156DSE FMV156DQE FMV156DCF CONTROL PANEL PARTS DOOR PARTS MISCELLANEOUS...
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Page 45: Packing And Accessories
FMV156DBE FMV156DSE FMV156DQE FMV156DCF PACKING AND ACCESSORIES 31 TURNTABLE TRAY INSTALLATION INSTRUCTIONS TOP PAD GREASE FILTER (x 2) 70 TOP/WALL TEMPLATE DOOR PROTECTOR OPERATION MANUAL INSTALL MATERIAL ASSEMBLY WRAP COVER EXHAUST DAMPER ASSEMBLY ACCESSORY PACK DOOR PAD BOTTOM PAD Non-replaceable items... - Page 46 FMV156DBE FMV156DSE FMV156DQE FMV156DCF NOTES...
- Page 47 FMV156DBE FMV156DSE FMV156DQE FMV156DCF NOTES...
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Page 48: Publication
FMV156DBE FMV156DSE FMV156DQE FMV156DCF COPYRIGHT © 2007 BY ELECTROLUX HOME PRODUCTS, INC. ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in retrieval systems, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.