Page 2 - CAUTION; SAFETY PRECAUTIONS; a. Do not operate or allow the oven to be operated with the door open.
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 magn...
Page 3 - FOREWORD; TABLE OF CONTENTS
FOREWORD Read this Manual carefully. Failure to adhere to or observe the information in this Manual may result in exposingyourself to the Microwave Energy normally contained within the oven cavity. TABLE OF CONTENTS (Page) SAFETY PRECAUTIONS .............................................................
Page 4 - SPECIFICATIONS
1-1 Rated Power Consumption..................................................1,500W maximum (Microwave oven+Cook top lamps+Ventilation fan)Microwave Output.................................................................1,000W (IEC 60705) Adjustable 100W through 1000W, 10 steps Frequency ..............
Page 5 - CAUTIONS; MICROWAVE RADIATION
2-1 CAUTIONS • DO NOT operate on a 2-wire extension cord during repair and use. • NEVER TOUCH any oven components or wiring during operation. • BEFORE TOUCHING any parts of the oven, always remove the power plug from the outlet. • For about 30 seconds after the oven stops, an electric charge remains...
Page 6 - INSTALLATION; PRECAUTIONS ON INSTALLATION; GROUNDING INSTRUCTIONS; WARNING
3-1 INSTALLATION PRECAUTIONS ON INSTALLATION A. Plug the power supply cord into a 120V AC, 60Hz, single-phase power source with a capacity of 15Aor 20A. B. Avoid placing the unit in a location where there is direct heat or splashing water. C. Install the unit on the mounting plate firmly.D. Place th...
Page 7 - CONTROL PANEL; OPERATING INSTRUCTIONS
CONTROL PANEL 4-1 OPERATING INSTRUCTIONS 1 2 4 7 10 13 16 21 18 3 6 5 8 12 14 17 19 15 20 9 11
Page 8 - CONTROL PANEL INSTRUCTIONS
CONTROL PANEL INSTRUCTIONS 4-2 1. DISPLAY: The Display includes a clock and indicators to tell you time of day, cooking time settings and cookingfunctions selected. 2. POPCORN: Touch this pad when popping popcorn in your microwave oven. 3. POTATO: Touch this pad to cook potatoes from 1 to 4. 4. BEVE...
Page 9 - SCHEMATIC DIAGRAM; OVERALL CIRCUIT DIAGRAM
Page 10 - MATRIX CIRCUIT FOR TOUCH KEY BOARD
MATRIX CIRCUIT FOR TOUCH KEY BOARD CUSTOM SET AUTO COOK TIME COOK KITCHEN TIMER POWER LEVEL N.C N.C Ez On CLOCK STOP/ CLEAR TIME DEFROST AUTO DEFROST AUTO REHEAT 5-2
Page 11 - GENERAL INFORMATION FOR SERVICE
6-1 GENERAL PRECAUTIONS IN USE A. Never operate the unit when it is empty. Operating the oven with no load may shorten thelife of the magnetron. Whenever cooking dry foods(dried fish, bread, etc.) or a small amount of food,be sure to put a glass of water into the cookingcompartment. The glass turnta...
Page 12 - PRELIMINARY; PRECAUTIONS AND REPAIR SERVICE TIPS; SERVICE INFORMATION
PRELIMINARY A. SINCE NEARLY 2,100 VOLTS EXISTS IN SOME CIRCUITS OF THIS UNIT REPAIRS SHOULD BECARRIED OUT WITH GREAT CARE.The filament leads of magnetron carry HighVoltage with respect to ground. Extreme caution must be exercised. Never plug the unit into apower source to determine which component i...
Page 13 - EQUIPMENT; MICROWAVE LEAKAGE TEST
7-2 CAUTIONS • Be sure to check microwave leakage prior to servicing the oven if the oven is operative prior toservicing. • The service personnel should inform the manufacture importer, or assembler of any certifiedoven unit found to have a microwave emission levelin excess of 5 mW/cm 2 and should r...
Page 14 - NOTE WHEN MEASURING; POWER OUTPUT MEASUREMENT
MEASUREMENT WITH THE OUTER CASEREMOVED (1) When you replace the magnetron, measure for microwave energy leakage before the outer caseis installed and after all necessary componentsare replaced or adjusted. Special care should betaken in measuring the following parts. - Around the magnetron- The wave...
Page 15 - A. REMOVING POWER AND CONTROL; DISASSEMBLY INSTRUCTIONS
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 THEHIGH VOLTAGE POWER SUPPLY HAS FULLYDISCHARGED.THE CAPACITOR SHOULD BE DISCHARGED BYUSING INSULATE...
Page 18 - C REMOVING THE DOOR INTERLOCK
Latch Board WH(from H.V.Transformer) WH(from Monitor S/W)WH(from Oven Thermostat) WH(from Cooktop lamp Secondary Interlock Switch Monitor Interlock Switch Primary Interlock Switch GN(from P.C.B) YL(from P.C.B) WH(from Secondary switch) RD(from Ry 7) Figure 9 Latch Board Secondary Interlock Switch In...
Page 19 - D. REMOVING MAGNETRON
Figure 13 Figure 11 Figure 12 vertgrille mount all outcase Magnetron D. REMOVING MAGNETRON (Figures 11 Through 13) (1) Remove vertgrille.(2) Remove mount all.(3) Remove outcase.(4) Discinnect the wireleads.(5) Remove the 3 screws and Magnetron very carefully. NOTES:• When removing the magnetron, mak...
Page 21 - H. REMOVING THE VENTILATION FAN
G. ASSEMBLING DOOR (1) When mounting the door assembly to the oven assembly, be sure to adjust the door assemblyparallel to the chassis. Also adjust so the door has noplay between the inner door surface and oven frameassembly. If the door assembly is not mountedproperly, microwaves may leak from the...
Page 22 - I. REMOVING THE TURNTABLE MOTOR
I. REMOVING THE TURNTABLE MOTOR (1) Remove the turntable.(2) Remove the turntable shaft VERY CAREFULLY with a slotted screwdriver. (Figure 19) (3) Remove the base plate by removing 6 screws securing it to the oven cavity. (Figure 20) (4) Disconnect the leadwire from the turntable motor terminals. (5...
Page 23 - INTERLOCK SYSTEM; INTERLOCK MECHANISM
7-12 ADJUSTMENT PROCEDURES To avoid possible exposure to microwave energyleakage, adjust the door latches and interlockswitches, using the following procedure. The Interlock Monitor and Primary Interlock Switch actas the final safety switch protecting the user frommicrowave energy. The terminals bet...
Page 25 - WARNING : FOR CONTINUED PROTECTION AGAINST EXCESSIVE RADIATION; COMPONENTS; INTERLOCK CONTINUITY TEST
7-14 A. PRIMARY INTERLOCK SWITCH TEST When the door is opened slowly, an audible clickshould be heard at the same time or successivelyat intervals and the latches should activate theswitches with an audible click.If the latches do not activate the switches when thedoor is closed, the switches should...
Page 26 - TEST AND CHECKOUT PROCEDURES, AND TROUBLE SHOOTING
7-15 - CAUTIONS - - DISCONNECT THE POWER SUPPLY CORD FROM THE WALL OUTLET WHENEVERREMOVINGING THE CABINET FROM THE UNIT.PROCEED WITH THE TESTS ONLY AFTERDISCHARGING THE HIGH VOLTAGE CAPACITORAND REMOVING THE WIRE LEADS FROM THEPRIMARY WINDING OF THE HIGH VOLTAGETRANSFORMER. (SEE FIGURE 24) - ALL OPE...
Page 29 - B. CHECKOUT PROCEDURES
7-18 COMPONENTS TEST PROCEDURES RESULTS RELAY2 Check for continuity of relay 2 with anohm-meter.(Remove wire leads from relay 2 andoperate the unit.) NOTES: • A MICROWAVE ENERGY TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICED FORANY REASON. • MAKE SURE THE WIRE LEADS ARE IN THE CORRECT POSIT...
Page 36 - EXPLODED VIEW; DOOR
8-1 EXPLODED VIEW DOOR 13581A 13552A 13536A 13213A 14890A 13720D 13650A 14970A 14026A WTT028
Page 38 - OVEN CAVITY
8-3 OVEN CAVITY 36912C 63302A WTT022 WTT028 WTT029 33112U 368771 WTT029 34810T 33530A 34890C WTT022 35230A 63303A 34810Q 34960A WTT021 *02 *01 *04 *05 535501
Page 39 - LATCH BOARD
8-4 LATCH BOARD 466001 43500A 466003 466001 44510A 43501A WSZ084
Page 44 - PRINTED CIRCUIT BOARD
Page 45 - Printed in Korea