Page 2 - CAUTION; WARNING TO SERVICE TECHNICIANS; PRECAUTIONS TO BE OBSERVED BEFORE; a. Do not operate or allow the oven to be operated with the door open.; information contained in this manual.
-1- 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 act...
Page 3 - FOREWORD; TABLE OF CONTENTS
-2- FOREWORD Read this Manual carefully. Failure to adhere to or observe the information in this Manual may result in exposing yourself tothe Microwave Energy normally contained within the oven cavity. MODEL 721.66312 721.66319 MECHANICAL SERVICE INFORMATION TABLE OF CONTENTS 1. Adjustment Procedure...
Page 4 - ADJUSTMENT PROCEDURES
1. ADJUSTMENT PROCEDURES To avoid possible exposure to microwave energyleakage, adjust the door latches and interlock switches,using the following procedure. ONLY AUTHORIZED SERVICE PERSONNELSHOULD MAKE THIS ADJUSTMENT. The Interlock Monitor and Primary Interlock Switch actas the final safety switch...
Page 6 - PRECAUTIONS ON INSTALLATION; GENERAL PRECAUTIONS IN USE
2. PRECAUTIONS ON INSTALLATION (Figure 2) A. Plug the power supply cord into a 120 V AC, 60 Hz, single-phase power source with a capacity of at least 20amperes. B. Since the unit weights about 38 lbs, be sure to place it on a sturdy and flat surface. C. Avoid placing the unit in a location where the...
Page 7 - SPECIFICATIONS
-6- SPECIFICATIONS Rated Power Consumption ................................... 1650W maximumOutput ................................................................... 1200W maximum (*IEC 60705 Rating standard) Adjustable 120W through 1200W, 10steps Frequency ............................................
Page 8 - OVERALL CIRCUIT DIAGRAM
6. OVERALL CIRCUIT DIAGRAM A. SCHEMATIC DIAGRAM -7- IMPORTANT SAFETY NOTE: THE SHADED AREAS ON THIS SCHEMATIC DIAGRAM INCORPORATE SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM MICROWAVE RADIATION, FIRE, ELECTRICAL SHOCK, AND HAZARDS. WHEN SERVICING IT IS ESSENTIAL THAT ONLY MANUFACTURER S SPECIFIED...
Page 10 - OPERATING PROCEDURES
7. OPERATING PROCEDURES A. OVEN CONTROL PANEL NOTE: A "beep" sounds when you touch a "key" on the control panel,to indicate that you have entered a setting. -9- Figure 5
Page 14 - SPECIAL TIP
D. MEASUREMENT WITH A FULLY ASSEMBLED OVEN (1) After all components, including the outer panels, are fully assembled, measure for microwave energyleakage around the door viewing window, the exhaustopening and air inlet openings. (2) Microwave energy leakage must not exceed the values prescribed belo...
Page 15 - DISASSEMBLY INSTRUCTIONS
9. DISASSEMBLY INSTRUCTIONS IMPORTANT NOTES: UNIT MUST BE DISCONNECTED FROM ELECTRICALOUTLET WHEN MAKING REPAIRS, RE-PLACEMENTS,ADJUSTMENTS AND CONTINUITY CHECKS. WAIT ATLEAST ONE MINUTE, UNTIL THE HIGH VOLTAGECAPACITOR IN THE HIGH VOLTAGE POWERSUPPLY HAS FULLY DISCHARGED. THE CAPACITORSHOULD BE DIS...
Page 20 - INTERLOCK CONTINUITY TEST
A. PRIMARY INTERLOCK SWITCH TEST When the door release button is depressed slowly withthe door closed, an audible click should be heard at the same time or successively at intervals. When thebutton is released slowly, the latches should activatethe switches with an audible click. If the latches do n...
Page 21 - TEST AND CHECKOUT PROCEDURES, AND TROUBLESHOOTING
-20- A. TEST PROCEDURES 11. TEST AND CHECKOUT PROCEDURES, 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 CAPACITORAND REMOVING THE WIRE LEADS FROM THE PRIMA...
Page 32 - SENSOR PARTS; EXPLODED VIEW; INTRODUCTION
-31- DOOR PARTS CONTROL PANEL PARTS BASE PLATE PARTS OVEN CAVITY PARTS LATCH BOARD PARTS INTERIOR PARTS SENSOR PARTS #EV# EXPLODED VIEW INTRODUCTION Model: 721.66312500 721.66319500
Page 33 - DOOR PARTS
-32- 1001 1000 1004 1002 1006 1007 1005 1003 #EV# DOOR PARTS
Page 34 - CONTROL PANEL PARTS
-33- 2000 2002 2006 W106 2004 2381 #EV# CONTROL PANEL PARTS
Page 35 - OVEN CAVITY PARTS
-34- 3034 3003 W105 3009 3002 3008 3001 W103 W118 W107 For model721.66312 For model721.66319 #EV# OVEN CAVITY PARTS
Page 36 - LATCH BOARD PARTS
-35- W102 4003 5015 4002 4002 4000 #EV# LATCH BOARD PARTS
Page 37 - INTERIOR PARTS
-36- 5001 W101 5010 5041 5014 5016 3006 W102 5003 5012 W110 5000 5040 W101 5002 W208 5018 W109 W101 W208 5007 5009 #EV# INTERIOR PARTS
Page 38 - BASE PLATE PARTS
-37- W101 W108 6007 5008 6000 6001 #EV# BASE PLATE PARTS