Related Manuals for Kenmore 767. 8703000
Summary of Contents for Kenmore 767. 8703000
-
Page 1: Microwave Oven
TECHNICAL FLASH T.F. 22-432 Department 731A Toronto BASIC SERVICE MANUAL MICROWAVE OVEN MODEL 767. 8703000 767. 8803000 767. 8903000 767. 8903400 767. 8903900 APRIL, 2000... -
Page 2: Safety Precautions
SAFETY PRECAUTIONS This device is to be serviced only by properly qualified service personnel. Consult the service manual for proper service procedures to assure continued safety operation and for precautions to be taken to avoid possible exposure to excessive microwave energy. PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY... -
Page 3: Table Of Contents
CONTENTS (Page) SAFETY PRECAUTIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Inside front cover SPECIFICATIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1 CAUTIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1 INSTALLATIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-1... -
Page 4: Specifications
SPECIFICATIONS MODEL NO. 87030 88030 89030/89034/89039 Rated Power Consumption 1,500 W Output 1,100 W (*IEC 705 Rating standard) Frequency 2,450 MHz Power Supply 120 V AC, 60 Hz Magnetron Cooling Forced Air Cooling Microwave Stirring Turntable Rectification Rectification Voltage Doubler Half-Wave Door Sealing Choke Cover and Choke System Safety Devices... -
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. INSTALLING GROUNDING INSTRUCTIONS 1. Empty the microwave oven and clean inside it with For personal safety, this appliance must be fully a soft, damp cloth. Check for damage such as grounded at all times. -
Page 7: Operating Instructions
OPERATING INSTRUCTIONS FEATURES Oven Front Plate Window Door Screen Door Seal Display Window Control Panel Door Open Button Safety Door Lock System Turntable Rotating Ring CONTROL PANEL 1. INDICATORS 2. DISPLAY WINDOW 3. QUICK SENSOR 4. QUICK TOUCH COOK 5 QUICK ON 6. -
Page 8: Schematic Diagram
SCHEMATIC DIAGRAM... -
Page 9: Circuit Description
CIRCUIT DESCRIPTION • A high voltage of approximately 2100 volts AC is GENERAL DETAILS generated in the secondary of the high voltage • The low voltage transformer supplies the necessary transformer which is increased by the action of the high voltage to the micom controller when power cord is voltage diode and charging of the high voltage plugged in. -
Page 10: Service Information
SERVICE INFORMATION TOOLS AND MEASURING INSTRUMENTS NECESSARY TOOLS NECESSARY MEASURING INSTRUMENTS Tools normally used for TV servicing are sufficient. • TESTER (VOLTS-DC, AC, Ohmmeter) Standard tools are listed below. • Microwave survey meter • Diagonal pliers - Holaday HI-1500 • Long nose pliers HI-1501 •... - Page 11 MEASUREMENT WITH OUTER CASE NOTES WHEN MEASURING REMOVED • Do not exceed meter full scale deflection. • The test probe must be removed no faster than • When you replace the magnetron, measure for 1 inch/sec (2.5 cm/sec) along the shaded area, microwave energy leakage before the outer case is otherwise a false reading may result.
-
Page 12: Measurement Of Microwave Power Output
MEASUREMENT OF MICROWAVE POWER OUTPUT • Microwave power output measurement is made with • The microwave power output P in watts is calculated the microwave oven supplied at its rated voltage and from the following formula : operated at its maximum microwave power setting with 4187 x (∆T) a load of (1000±5) g of potable water. - Page 13 D. PCB ASSEMBLY REMOVAL Remove choke cover cap(For model 87030/88030) 1) Remove the control panel assembly from the cavity. (Refer to control panel assembly removal on previous page.) 2) Remove screws which hold the PCB SUB ASS’Y to the control panel. 3) Disconnect the flat cable from the PCB SUB ASS’Y and take off the PCB SUB ASS’Y Control Panel...
-
Page 14: Diode Removal
F. AIR DUCT ASSEMBLY REMOVAL I. FAN MOTOR ASSEMBLY REMOVAL 1) Discharge the high voltage capacitor. 1) Disconnect the leadwire from lamp and MGT thermostat. 2) Remove the mounting screw to the magnetron. 2) Disconnect the leadwire from fan motor, noise filter and high voltage capacitor. - Page 15 K. REMOVING THE TURNTABLE MOTOR M. INTERLOCK SYSTEM 1) Remove the glass turntable. 1) INTERLOCK MECHANISM 2) Remove the rotating ring assʼy by hand. The door lock mechanism is a device which has 3) Remove the turntable motor cover. been specially designed to eliminate completely The turntable base cover is easily removed by microwave activity when the door is opened during pinching the six parts with wire cutting pliers.
-
Page 16: Interlock Continuity Test
INTERLOCK CONTINUITY TEST WARNING : FOR CONTINUED PROTECTION AGAINST EXCESSIVE RADIATION EMISSION, REPLACE ONLY WITH IDENTICAL REPLACEMENT PARTS. TYPE NO. SZM-V 16-FA-63 OR VP-533A-OF FOR PRIMARY SWITCH TYPE NO. SZM-V 16-FA-62 OR VP-532A-OF FOR MONITOR SWITCH TYPE NO. SZM-V 16-FA-63 OR VP-533A-OF FOR SECONDARY SWITCH B. -
Page 17: Component Test Procedure
COMPONENT TEST PROCEDURE 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 WIRE LEADS FROM THE PRIMARY WINDING OF THE HIGH VOLTAGE TRANSFORMER. - Page 18 COMPONENTS TEST PROCEDURE RESULTS Antenna Gasket Chassis Filament NOTE: When testing the magnetron, be sure to install the magnetron gasket in the correct position and be sure that the gasket is in good condition. HIGH VOLTAGE Measure the resistance. Normal: Momentarily indicates CAPACITOR (Ohm-meter scale: Rx1000) several ohms, and...
- Page 19 COMPONENTS TEST PROCEDURE RESULTS Check for continuity of relay 2 with an RELAY 2 POWER ohm-meter. LEVEL (Remove wire leads from relay 2 and operate the unit.) 4 sec 18 sec 6 sec 16 sec 8 sec 14 sec 10 sec 12 sec 12 sec 10 sec...
-
Page 20: Trouble Shooting
TROUBLE SHOOTING WHEN YOU GET A COMPLAINT FROM YOUR CUSTOMER, EVALUATE THE COMPLAINT CAREFULLY. IF THE FOLLOWING SYMPTOMS APPLY, PLEASE INSTRUCT THE CUSTOMER IN THE PROPER USE OF THE MICROWAVE OVEN. THIS CAN ELIMINATE AN UNNECESSARY SERVICE CALL. CAUTIONS 1. Check grounding before checking for trouble. 2. - Page 21 (TROUBLE 1) The following visual conditions indicate a probable defective control circuit. 1. Incomplete segments. • Segment missing. • Partial segment missing. • Digit flickering (NOTE: Slight flickering is normal.) 2. Colon does not turn on or blink. 3. A distinct change in the brightness of one or more numbers in display. 4.
- Page 22 (TROUBLE 2) Oven does not operate at all, Display window does not display any figures, and no input is accepted. CONDITION CHECK RESULT CAUSE REMEDY Malfunction of the Replace fuse, Check continuity 1. Fuse blows. Continuity. monitor switch. primary, monitor, of monitor secondary switch (with...
- Page 23 (TROUBLE 3) Display shows all figures set, but oven does not start cooking while desired program times are set and START pad is touched. CONDITION CHECK RESULT CAUSE REMEDY Defective Replace Check continuity 1. Setting time No continuity. secondary switch. secondary switch.
- Page 24 (TROUBLE 5) No microwave oscillation even though oven lamp and fan motor run. (Display operates properly) CONDITION CHECK RESULT CAUSE REMEDY No microwave Defective PCB Replace PCB Disconnect the No continuity. oscillation. assembly. assembly. wire leads from relay 2 and check continuity Continuity.
-
Page 25: Exploded View
#EV# EXPLODED VIEW INTRODUCTION MODEL: 767. 8703000 MODEL: 767. 8703000 767. 8803000 767. 8803000 767. 8903000 767. 8903000 767. 8903400 767. 8903400 767. 8903900 767. 8903900 SENSOR PARTS OVEN CAVITY PARTS INTERIOR PARTS BASE PLATE PARTS DOOR PARTS LATCH BOARD PARTS... -
Page 26: Door Parts
#EV# DOOR PARTS MODEL: 767. 89034 767. 89030 767. 89039 13552A 13581A 13536A 13213A for 89034 only 13551A 13352A 13720D 14026A 14970A MODEL: 767. 87030 15006A 767. 88030 13552A 13581A 13536A 13213A 13720D 13352A 14026A 14970A... - Page 27 #EV# CONTROL PANEL PARTS MODEL: 767. 87030 24781M 767. 88030 23572A 767. 89030 268711 23550D 767. 89039 26638A WTP018 24510L 24970A 250201 MODEL: 767. 89034 24781M 23551A 268711 23550D WTP018 24510L 24970A 23551B...
- Page 28 #EV# OVEN CAVITY PARTS MODEL: 767. 87030 767. 89030 767. 89034 WTT021 33112U 767. 89039 33052M 340511 WTT010 WTT020 33390G 36549S 35889A WTP013 MODEL: 767. 88030 WSZ185 33112U 33052A WTT010 33390G 36549S 35889A WTP013...
- Page 29 #EV# LATCH BOARD PARTS WSZ085 WTT028 56912B 55262A 466001 43501A 466003 466001 43500A...
- Page 30 #EV# INTERIOR PARTS 568771 WSZ002 56411A 50FZZA 56930V 34930W 56201A 56549F 54974S WSZ002 55900A WTT037 56851D For model WSZ002 767.89034 / 767.89030 767.89039 / 767.87030 WSZ002 WSZ002 50CZZH 35012A 54810C WSZ002 WTT037 56324A 56201B...
- Page 31 #EV# BASE PLATE PARTS 63303L 56170D 63302L 63303R 63302R WTT021 948503 65006B WSZ002 65006B WTT021...
- Page 32 #EV# SENSOR PARTS WTT021 WTP002 54974T 56501A...
-
Page 33: Schematic Diagram Of P.c.b
SCHEMATIC DIAGRAM OF P.C.B. -
Page 34: Printed Circuit Board
PRINTED CIRCUIT BOARD... - Page 35 P/NO : 3828W5S1535 Printed in Korea...