Daewoo KOG-374R0S, KOG-371H0S, KOG-373R0S, KOG-375R0S, KOG-393R0S, KOG-391H0S Table of Contents

Page 2

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: (1) Interlock operation, (2) Proper door closing, (3) Seal and sealing surfaces (arcing, wear, and other damage), (4) Damage to or loosening of hinges and latches, (5) Evidence of dropping or abuse.

(c)Before turning on power to the microwave oven for any service test or inspection within the microwave generating compartments, check the magnetron, wave huide or transmission line, and cavity for proper alignment, integrity, and connections.

(d)Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is released to the owner.

(e)A microwave leakage check to verify compliance with the Federal Performance Standard should be performed on each oven prior to release to the owner.

TABLE OF CONTENTS
SAFETY AND PRECAUTIONS	2
1. FOR SAFE OPERATION	2
2. FOR SAFE SERVICE PROCEDURES	2
SPECIFICATIONS	3
EXTERNAL VIEW	4
1. OUTER DIMENSION	4
2. FEATURE DIAGRAM	6
3. CONTROL PANEL	12
INSTALLATION	19
OPERATIONS AND FUNCTIONS	20
DISASSEMBLY AND ASSEMBLY	21
INTERLOCK MECHANISM AND ADJUSTMENT	43
TROUBLE SHOOTING GUIDE	45
MEASUREMENT AND TEST	49
1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT	49
2. MICROWAVE RADIATION TEST	50
3. COMPONENT TEST PROCEDURE	51
WIRING DIAGRAM	52
PRINTED CIRCUIT BOARD	54, 60, 66, 72, 77
1. CIRCUIT CHECK PROCEDURE	55, 61, 67, 73, 78
2. PCB CIRCUIT DIAGRAM	57, 63, 69, 75, 80
3. P.C.B. LOCATION NO	58, 64, 70, 76, 81
EXPLODED VIEW AND PARTS LIST	83
1. DOOR ASSEMBLY	83
2. CONTROL PANEL ASSEMBLY	83
3. TOTAL ASSEMBLY	83

1

Image 2

Contents Microwave Oven Table of Contents For Safe Operation Safety and PrecautionsFor Safe Service Procedures KOG-391G/H/R0S SpecificationsModel KOG-376T1S KOG-396T1SOuter Dimension External View465 360 Feature Diagram Heating Element Oven Cavity Sefety Interlock SystemKOG-376T1S, KOG-396T1S KOG-371R0S, KOG-391R0S KOG-374R0S KOG-375R0S KOG-373R0S, KOG-393R0S Control Panel KOG-371G0S, KOG-391G0SKOG-371H0S, KOG-391H0S KOG-376T1S, KOG-396T1S Grill/Combi Stop/Clear Stop/Clear Start/Easy Cook Auto cook Installation Earthing InstructionsWattage output chart Operation and FunctionsDisassembly and Assembly To remove door assembly To remove cabinetTo remove door parts REF. no Part Code Part Name Description QTY RemarkPage Frame Door ABS Page REF no Part Code Part Name Description ’TY Remark Decorator DOOR*TPage Screw Tapping T2SN TRS 4X16 Mfzn Page BARRIER-SCREEN*0 SAN Page To remove control panel parts CONTROL-PANEL ABS Control Panel Knob Volume Button Function Button Fuction *A High voltage circuit wiring To remove magnetron To remove high voltage capacitorTo remove wind guide assembly To remove H.V.transformerTo remove tray motor To remove heater assmblyTo remove heater parts Interlock Mechanism and Adjustment AdjustmentInterlock Mechanism and Adjustment Trouble Shooting Guide Check ResultCheck Check Result Cause Cause Remedy Measurement and Test ProcedureHeating time for power output Microwave Radiation Test High voltage diode High voltage transformerHigh voltage capacitor MagnetronWiring Diagram KOG-396T1S Voltage Check Key check point Printed Circuit Board KOG-371G/H0S, KOG-391G/H0SLow voltage transformer check Check Point RemarkMesurement point Point State Point State Relay 2 on 5VDC GND Relay 2 OFFPoint State Relay 1 on 5VDC GND Close GND Check no Hethod RemedyC.B. Circuit Diagram Name Symbol Specification Part Code ’TY C.B. Location noR15 6W 10K 5% Printed Circuit Board KOG-376T1S, KOG-396T1S Wave Form Remedy RemarkMesurement point 24VDC Point State Relay 3 on 5VDC GNDC.B. Circuit Diagram C.B. Location no KOG-396T1S Printed Circuit Board KOG-371R0S, KOG-391R0S Mesurement point Point State Relay 2 on 5VDC GND Relay 2 OFF C.B. Circuit Diagram Name Symbol Specification Part Code ’TY Remark J1~J17, SJ1 Circuit Check Procedure Printed Circuit Board KOG-374R0S, KOG-375R0SMesurement point Point State Relay 2 on 5VDC GND Relay 2 OFF C.B. Circuit Diagram Name Symbol Specification Part Code QTY Remark Printed Circuit Board KOG-373R0S, KOG-393R0S Mesurement point Point State Relay 2 on 5VDC GND Relay 2 OFF C.B. Circuit Diagram Wire Copper TIN Coating J3, J5~J10, SJ1 Exploded View and Parts List KOG-371G/H/R0S, KOG-391G/H/R0S Total AssemblyREF no Part Code Part Name Description QTY Foot KOR-86150S KOR-61150S Exploded View and Parts List KOG-376T1S, KOG-396T1S CONTROL-PANEL AS Special Screw TT3 TRS 4X8 FLG Mfzn KOG-396T1S Part Code Part Name Description Supply Remark Exploded View and Parts List KOG-374R0S Special Screw TT3 HEX 4X8 Mfzn Exploded View and Parts List KOG-375R0S KOG-375R0S Exploded View and Parts List KOG-373R0S, KOG-393R0S Heater AS Foot 100 101 Printed Date Dec