Related Manuals for Kenmore 767. 8513000
Summary of Contents for Kenmore 767. 8513000
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Page 1: Microwave Oven
TECHNICAL FLASH T.F. Department 731A Toronto BASIC SERVICE MANUAL MICROWAVE OVEN MODEL 767. 8513000 767. 8513800 767. 8513900 767. 8514000 FEBRUARY, 2001... -
Page 2: Safety Precautions
CAUTION SAFETY PRECAUTIONS 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 1,500W maximum (Microwave oven+Cook top lamps+Ventilation fan) Microwave Output 1000W (IEC 60 705) Adjustable 100W through 1000W, 10 steps Frequency 2,450 MHz 50 MHz Power Supply 120 VAC, 60 Hz Rated Current 13 Amp. (Microwave oven+Cook top lamps+Ventilation fan) Magnetron Cooling Forced Air Cooling Rectification... -
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 15A or 20A. B. Avoid placing the unit in a location where there is direct heat or splashing water. -
Page 7: Operating Instructions
OPERATING INSTRUCTIONS CONTROL PANEL For Model 85130 For Model 85140 85138 85139... -
Page 8: Control Panel Instructions
CONTROL PANEL INSTRUCTIONS 1. DISPLAY: The Display includes a clock and indicators to 14. HOLD WARM: Touch this pad to keep hot, cooked foods tell you time of day, cooking time settings and cooking safety warm in your microwave oven for up to 99 minutes functions selected. -
Page 9: Overall Circuit Diagram
OVERALL CIRCUIT DIAGRAM SCHEMATIC DIAGRAM... -
Page 10: Matrix Circuit For Touch Key Board
MATRIX CIRCUIT FOR TOUCH KEY BOARD For Model 85130/85138/85139 For Model 85140... -
Page 11: General Information For Service
GENERAL INFORMATION FOR SERVICE (1) Primary interlock switch GENERAL PRECAUTIONS IN USE (2) Secondary interlock switch A. Never operate the unit when it is empty. (3) Interlock monitor switch Operating the oven with no load may shorten the (4) Choke system 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 A. SINCE NEARLY 2,100 VOLTS EXISTS IN SOME repaired, if any of the following conditions exist. CIRCUITS OF THIS UNIT REPAIRS SHOULD BE The unit must not be operated. -
Page 13: Microwave Leakage Test
MICROWAVE LEAKAGE TEST MEASURING MICROWAVE ENERGY CAUTIONS LEAKAGE • Be sure to check microwave leakage prior to servicing the oven if the oven is operative prior to • Pour 275±15cc of 20±5°C(68±9°F) water in a beaker servicing. which is graduated to 600 cc, and place the beaker •... -
Page 14: Power Output Measurement
MEASUREMENT WITH THE OUTER CASE NOTE WHEN MEASURING (1) Do not exceed meter full scale deflection. REMOVED (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 (4) Remove 3 screws securing the circuit board. IMPORTANT NOTES: UNIT MUST BE DISCONNECTED FROM ELEC- TRICAL OUTLET WHEN MAKING REPAIRS, RE- PLACEMENTS, ADJUSTMENTS AND CONTIN- UITY CHECKS. WAIT AT LEAST ONE MINUTE, UNTIL THE HIGH VOLTAGE CAPACITOR IN THE HIGH VOLTAGE POWER SUPPLY HAS FULLY DISCHARGED. - Page 16 HOW TO INSERT THE F.P.C. CONNECTOR HOW TO REMOVE THE F.P.C. CONNECTOR Follow the steps below as illustrated in Figures 6 Follow the steps below as illustrated in Figures 4 and 7 to insert the F.P.C. connector. and 5 to remove 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 Latch Board “ADJUSTMENT PROCEDURE” on page 7-12. Secondary Interlock Switch Latch Board...
- Page 19 D. REMOVING MAGNETRON NOTES: • When removing the magnetron, make sure that its (Figures 11 Through 13) dome does not hit any adjacent parts, or it may be (1) Remove the vent grille by loosening two screws. damaged. (Figure 11) (2) Remove the outcase.
- Page 20 E. REMOVING STIRRER FAN F. REMOVING DOOR (Figure 16) (Figures 14 and 15) (1) Remove the vent grille by two screws securing it to (1) Remove one rivet ASS'Y securing it to the oven the outcase loosening. upper plate by using knife blade. (2) Lift up and draw the door.
- Page 21 H. ASSEMBLING DOOR (3) Carefully pull the ventilation motor ASS'Y out of (1) When mounting the door assembly to the oven the microwave oven. (See Figure 19-b) assembly, be sure to adjust the door assembly parallel to the chassis. Also adjust so the door has no play between the inner door surface and oven frame assembly.
- Page 22 K. REMOVING THE TURNTABLE MOTOR NOTES: • Remove the leadwire from the turntable motor (1) Remove the turntable. VERY CAREFULLY. (2) Remove the turntable shaft VERY CAREFULLY • Be sure to grasp the connector not the wires when with a slotted screwdriver. (Figure 20) removing.
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Page 23: 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 24 TEST THE LATCH AND SWITCH SEQUENCE (5) Open the oven door slowly. Watch the door latch, (7) When you achieve the proper sequence of the Secondary Switch. Release Rod and Lever switches in Steps 5 and 6, tighten the latch board on the switches to make sure they are zero to the screws at that point.
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Page 25: Interlock Continuity Test
INTERLOCK CONTINUITY TEST A. PRIMARY INTERLOCK SWITCH TEST B. SECONDARY INTERLOCK SWITCH TEST Disconnect the wire lead from the secondary When the door is opened slowly, an audible click switch. should be heard at the same time or successively Connect the ohmmeter leads to the common at intervals and the latches should activate the (COM) and normally open (NO) terminals of the switches with an audible click. -
Page 26: Test And Checkout Procedures And Trouble Shooting
TEST AND CHECKOUT PROCEDURES, AND TROUBLE SHOOTING - CAUTIONS - Secondary - DISCONNECT THE POWER SUPPLY CORD Winding FROM THE WALL OUTLET WHENEVER REMOVINGING THE CABINET FROM THE UNIT. PROCEED WITH THE TESTS ONLY AFTER DISCHARGING THE HIGH VOLTAGE CAPACITOR AND REMOVING THE WIRE LEADS FROM THE PRIMARY WINDING OF THE HIGH VOLTAGE TRANSFORMER. - Page 27 COMPONENTS TEST PROCEDURES RESULTS Measure the resistance: Normal reading: (1) Terminal to terminal Momentarily indicates several ohms, and then gradually returns to infinite ohms. Abnormal reading: Ohm- Indicates continuity or infinite ohms meter from the beginning. HIGH-VOLTAGE Figure 25-a CAPACITOR (2) Terminal to case Normal readings: Infinite.
- Page 28 COMPONENTS TEST PROCEDURES RESULTS Measure the resistance between terminal When When not pins of connector KEY CONNECTOR. Resistance touched touched NOTE: value Less than More than When reconnecting the FPC connector, 400 ohms 1 mega ohm make sure that the holes on the FPC connector are properly engaged with hooks on the plastic fastener.
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Page 29: Checkout Procedures
COMPONENTS TEST PROCEDURES RESULTS POWER Check for continuity of relay 2 with an LEVEL ohm-meter. (Remove wire leads from relay 2 and 4 sec 18 sec operate the unit.) 6 sec 16 sec Relay 2 8 sec 14 sec 10 sec 12 sec RELAY2 12 sec... - Page 30 (2) CHECKOUT PROCEDURES FOR RELAY. - PROBLEM (A) - FAN motor and oven lamp turn on without touching START key when the door is closed. Remove the mate connector of I/O GOOD CON from the circuit board. Does the unit still operate? Replace the Defective circuit board...
- 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.
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Page 37: Exploded View
#EV# EXPLODED VIEW DOOR PARTS Model: 767. 8513000 767. 8513800 767. 8513900 767. 8514000 13581A 13536A 13213A 13552A WTP004 14760A 13720D 14890A 14970A 14026A WTT028 13650A... -
Page 38: Controller Parts
#EV# CONTROLLER PARTS 24781M WTP018 23572A 26638A 268711 24810P * 07... -
Page 39: Oven Cavity Parts
#EV# OVEN CAVITY PARTS WTT021 34960A WTT029 33550P 33530A WTT028 WTT029 34810Q 33112U WTT022 63303A 368771 34930R 330342 56804A 35026G WTT022 33550L 63302A 36912C 330341 35230A WTT022... - Page 40 #EV# LATCH BOARD PARTS 43500A 43501A 466001 WSZ084 466003 466001 44510A...
- Page 41 #EV# INTERIOR PARTS (I) 33390G 56324A 34370T WSZ002 56201B 54810C WTT021 35889A 55238A 50CZZH 56851D 33052A WSZ002 WTP002 56170D WSZ002 55893A 55892A 54930F WTT021 56930G 53550F 36549S 568772 53300B 340511 WSZ002...
- Page 42 #EV# INTERIOR PARTS (II) WTP018 WSZ002 36549V 53550L 50FZZA WTT034 56912B 56549F 56804A 56201A 56901A WTP004 WTT029 WSZ002 56411A 56501A 56930V 55900A WTT028 55231C 568771 WTT028...
- Page 43 #EV# INSTALLATION PARTS 65862D 63300M 65862B 63861A...
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Page 44: Schematic Diagram Of Pcb
SCHEMATIC DIAGRAM OF P.C.B 8-16... -
Page 45: Printed Circuit Board
PRINTED CIRCUIT BOARD 8-17... - Page 46 P/NO : 3828W5S1807 Printed in Korea...