Table of Contents
Related Manuals for LG MV1611WW
Summary of Contents for LG MV1611WW
-
Page 1: Microwave Oven
Internal Use Only Website: http://us.lgservice.com MICROWAVE OVEN SERVICE MANUAL MODEL: MV1611BB MV1611WW MV1611ST CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. August, 2010 P/NO : MFL08861102 Printed in Korea... -
Page 2: To Excessive Microwave Energy
CAUTION WARNING TO SERVICE TECHNICIANS PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY a. Do not operate or allow the oven to be operated with the door open. b. Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs as necessary;... -
Page 3: Table Of Contents
FOREWORD Read this Manual carefully. Failure to adhere to or observe the information in this Manual may result in exposing yourself to the Microwave Energy normally contained within the oven cavity. TABLE OF CONTENTS (Page) SAFETY PRECAUTIONS ........................Inside front page SPECIFICATIONS .............................. -
Page 4: Specifications
SPECIFICATIONS Rated Power Consumption ........ 1500W maximum (Microwave oven+Cook top lamps+Ventilation fan) Microwave Output ..........1000W (IEC60705) Frequency ............2450 MHz ±50 MHz Power Supply ............. 120 V~ 60 Hz Rated Current ............ 14 Amp. (Microwave oven+Cook top lamps+Ventilation fan) Magnetron Cooling .......... -
Page 5: Cautions
CAUTIONS Unlike other appliances, the microwave oven is MICROWAVE RADIATION high-voltage and high-current equipment. Personnel should not be exposed to the Though it is free from danger in ordinary use, microwave energy which may radiate from the extreme care should be taken during repair. magnetron or other microwave generating device if it is improperly used or connection. -
Page 6: Installations
INSTALLATIONS BEFORE YOU BEGIN, READ THE FOLLOWING INSTRUCTIONS COMPLETELY AND CAREFULLY. PRECAUTIONS ON INSTALLATION A. Plug the power supply cord into a 120V AC, 60Hz, single-phase power source with a capacity of at least 20 amperes. B. Avoid placing the unit in a location where there is direct heat or splashing water. -
Page 7: Operating Instructions
OPERATING INSTRUCTIONS CONTROL PANEL... -
Page 8: Control Panel Instructions
CONTROL PANEL INSTRUCTIONS 1. Display Panel. The display includes a clock and 11. TIME. Touch this pad followed by number pads to indicators to tell you time of day, cooking time set a cooking time. settings, cook powers, quantities, weights and 12. -
Page 9: Overall Circuit Diagram
OVERALL CIRCUIT DIAGRAM SCHEMATIC DIAGRAM DIODE... -
Page 10: Matrix Circuit For Touch Key Board
MATRIX CIRCUIT FOR TOUCH KEY BOARD KEY MATRIX... -
Page 11: General Information For Service
GENERAL INFORMATION FOR SERVICE GENERAL PRECAUTIONS IN USE FEATURES AND SPECIFICATIONS FEATURES A. Never operate the unit when it is empty. A. The safety systems incorporated in this model are: Operating the oven with no load may shorten the (1) Primary interlock switch life of the magnetron. -
Page 12: Service Information
SERVICE INFORMATION PRECAUTIONS AND REPAIR SERVICE TIPS PRELIMINARY (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. SINCE NEARLY 4000 VOLTS EXISTS IN SOME (a) The door does not close firmly. -
Page 13: Microwave Leakage Test
MICROWAVE LEAKAGE TEST CAUTIONS EQUIPMENT- • Be sure to check microwave leakage prior to • TESTER ((VOLTS-DC, AC, Ohmmeter) servicing the oven if the oven is operative prior to • Microwave survey meter servicing. - Holaday HI-1500 • The service personnel should inform the HI-1501 manufacture importer, or assembler of any certified - Narda... -
Page 14: Power Output Measurement
MEASUREMENT WITH THE OUTER CASE NOTE WHEN MEASURING REMOVED (1) Do not exceed meter full scale deflection. (2) The test probe must be removed no faster than (1) When you replace the magnetron, measure for 1 inch/sec (2.5cm/sec)along the shaded area, microwave energy leakage before the outer case otherwise a false reading may result. -
Page 15: Disassembly Instructions
DISASSEMBLY INSTRUCTIONS IMPORTANT NOTES: UNIT MUST BE DISCONNECTED FROM ELEC- TRICAL OUTLET WHEN MAKING REPAIRS, RE- PLACEMENTS, ADJUSTMENTS AND CONTIN- UITY CHECKS. WHEN RECONNECTING THE WIRE LEADS TO ANY PART, MAKE SURE THE WIRING CONNE- CTIONS AND LEAD COLORS ARE CORRECTLY MATCHED ACCORDING TO THE OVERALL CIR- CUIT DIAGRAM. - Page 16 HOW TO REMOVE THE F.P.C. CONNECTOR HOW TO INSERT THE F.P.C. CONNECTOR Follow the steps below as illustrated in Figures 4 Follow the steps below as illustrated in Figures 6 and 5 to remove the F.P.C. connector. and 7 to insert the F.P.C. connector. (1) Insert the F.P.C.
- Page 17 B. REMOVING THE OUT CASE(Figure 8) (1) Remove the vent grille by removing two screws securing it to the out case. (2) Remove two screws securing it to the air duct. (3) Remove the mounting plate by turning the screws (1 or 2 screws)securing it to the out case.
- Page 18 C. REMOVING THE DOOR INTERLOCK SWITCHES (Figures 9, 10) (1) Disconnect the wire leads from the interlock switches. (2) Remove two screws securing the Latch Board. (3) Make necessary replacements and check microwave energy leakage according to “ADJUSTMENT PROCEDURES” on page 7-12. Figure 10 WIRE COLOR Figure 9...
- Page 19 D. REMOVING MAGNETRON E. REMOVING STIRRER FAN (Figures 11 Through 12) (Figures 13 and 14) (1) Remove the vent grille by loosening two screws. (1) Remove one rivet ASS'Y securing it to the oven (Figure 11) upper plate by using knife blade. (2) Remove the outcase.
- Page 20 F. REMOVING DOOR (Figure 15) H. ASSEMBLING DOOR (1) Remove the vent grille by two screws securing it to (1) When mounting the door assembly to the oven the outcase loosening. assembly, be sure to adjust the door assembly (2) Lift up and draw the door. parallel to the chassis.
- Page 21 (3) Carefully pull the ventilation motor ASS'Y out ofthe J. REMOVING THE TURNTABLE MOTOR microwave oven. (See Figure 18-b) (1) Remove the glass tray and rotating ring. (2) Remove the turntable shaft VERY CAREFULLY with a hand. (Figure 19) (3) Remove the base plate by removing 8 screws securing it to the oven cavity.
-
Page 22: Interlock System
INTERLOCK SYSTEM INTERLOCK MECHANISM The door lock mechanism is a device which has been specially designed to eliminate completely microwave activity when the door is opened during cooking and thus to prevent the danger resulting from the microwave leakage. ADJUSTMENT PROCEDURES CHECK THE DOOR LATCH AND SWITCH To avoid possible exposure to microwave energy CLOSING. - Page 23 TEST THE LATCH AND SWITCH SEQUENCE (7) When you achieve the proper sequence of switches in Steps 5 and 6, tighten the latch board screws at that point. (5) Open the oven door slowly. Watch the door latch, the Secondary Switch. Release Rod and Lever TEST THE MICROWAVE ENERGY LEAKAGE on the switches to make sure they are zero to the body of the switches in the following sequence:...
-
Page 24: Interlock Continuity Test
INTERLOCK CONTINUITY TEST A. PRIMARY INTERLOCK SWITCH TEST B. SECONDARY INTERLOCK SWITCH TEST When the door is opened slowly, an audible click Disconnect the wire lead from the secondary should be heard at the same time or successively switch. at intervals and the latches should activate the Connect the ohmmeter leads to the common switches with an audible click (COM)and normally open (NO)terminals of the... -
Page 25: Test And Checkout Procedures And Troubleshooting
TEST AND CHECKOUT PRECEDURES AND TROUBLESHOOTING CAUTIONS 1. DISCONNECT THE POWER SUPPLY CORD FROM THE OUTLET WHENEVER REMOVING THE OUTER CASE FROM THE UNIT. PROCEED WITH THE TEST ONLY AFTER DISCHARGING THE HIGH VOLTAGE CAPACITOR AND REMOVING THE LEAD WIRES FROM THE PRIMARY WINDING OF THE HIGH VOLTAGE TRANSFORMER. 2. - Page 26 COMPONENTS TEST RESULTS H.V.CAPACITOR 1. Check DC 9V battery before performing tests. 2. Select the DCV scale on the meter. 3. Using the meter, battery, and jump wire, connect the items as illustrated in figures. • Terminal to terminal Normal: Approximately 9V Abnormal : Approximately 0V...
- Page 27 COMPONENTS TEST RESULTS Figure 1 Figure 2 Figure 3 1. Measure continuity. RELAY 2 Power Open Close (ohm meter scale: Rx1) Level 2. Remove the lead wires and operate oven at 4 Sec 18 Sec power level 1 through power level 10. 6 Sec 16 Sec 14 Sec...
- Page 28 COMPONENTS TEST RESULTS 1. Remove wire leads. Normal: VENTILATION MOTOR 2. Measure resistance. (ohm meter scale: Rx1) High speed: Approximately High speed: Blue and Black wire 60 to 75 ohm Low speed:Blue and White wire Low speed: Approximately 110 to 125 ohm 1.
-
Page 29: Checkout Procedures
B. CHECKOUT PROCEDURES (1) CHECKOUT PROCEDURES FOR FUSE BLOWING CAUTION: REPLACE BLOWN FUSE WITH 20 AMPERE FUSE. PROBLEMS CAUSES Fuse blows immediately after the door is closed. Improper operation of the primary interlock, secondary Fuse blows immediately after interlock switches and/or the interlock monitor switch. the door is opened. - Page 30 (2)CHECKOUT PROCEDURES FOR RELAY. -PROBLEM (A)- -PROBLEM (A)-- FAN motor turns on without touching START key Oven lamp turns on without touching START key when the door is closed. when the door is closed. Remove the mate connector of I/O Remove the mate connector of I/O GOOD GOOD...
- Page 31 (3) CHECKOUT PROCEDURES FOR CIRCUIT BOARD The following symptoms indicate a defective circuit 6) Wrong figures appear. board. 7) The figures of all digits. 1) The start function fails to operate but the high 8) Some of the indicators do no flicker light up. voltage Systems, the interlock switches, the door 9) The clock does not keep time properly.
- Page 32 7-21...
- Page 33 7-22...
- Page 34 7-23...
- Page 35 7-24...
-
Page 36: Exploded View
#EV# EXPLODED VIEW INTRODUCTION MODEL: OVEN CAVITY PARTS INTERIOR PARTS DOOR PARTS LATCH BOARD PARTS CONTROL PANEL PARTS -8-1-... - Page 37 #EV# DOOR PARTS (I) FOR MODEL: 1005 1004 1002 1000 1008 1003 1006 1007 W102 1009 -8-2-...
- Page 38 #EV# CONTROLLER PARTS (I) FOR MODEL: 2006 2004 2008 W106 2002 W101 : TECHNICA L CAR D MBM2 2000 -8-4-...
- Page 39 #EV# OVEN CAVITY PARTS W138 W142 3010 W109 3038 3024 3001 3029 3034 W108 5038 5036 6001 6000 3028 3011 3025 W118 W118 3026 -8-6-...
- Page 40 #EV# LATCH BOARD PARTS 4000 4002 W102 4001 4003 4002 4004 -8-7-...
- Page 41 #EV# INTERIOR PARTS (I) W101 3002 5009 3012 W108 3008 5008 3037 W108 3009 W101 W105 5035 W108 5018 W101 5002 5000 5034 -8-8-...
- Page 42 #EV# INTERIOR PARTS (II) 3027 5015 5037 5045 5001 W130 W108 5038 5041 W109 5010 5337 5006 5016 5067 5014 W101 5024 5058 5043 5044 3004 -8-9-...
- Page 43 #EV# INSTALLATION PARTS 6008 W109 6011 6010 6009 VINYL COOKING MFL1 MFL3 MEZ1 UPPER WALL MBM5 MBM4 OWNERS INSTALLATION GUIDE TEMPLATE TEMPLATE MANUAL MANUAL LABEL -8-10-...