Daewoo KOR-63DB9S, KOR-63FB0S Printed Circuit Board, Circuit Check Procedure, Load No Load

Page 26

PRINTED CIRCUIT BOARD

1. CIRCUIT CHECK PROCEDURE

1. Low Voltage Transformer check

•The low voltage transformer is located on the P.C.B.

•Measuring condition: input voltage : 230V/Frequency : 50Hz

Terminal Voltage

LOAD

NO LOAD

 

 

 

4-8

AC 25.8 V

AC 31.8 V

NOTE :

1.Refer to Circuit Diagram (point 4).

2.Secondary side voltage of the low voltage transformer changes in proportion to fluctuation of power source voltage.

3.The allowable tolerance of the secondary voltage is within ± 5% of nominal voltage.

2.Voltage check

• Key check point

NO

CHECK POINT

REMARK

1

IC 1 PIN 14

-5 VDC

 

 

 

2

IC 1 PIN 22

 

T:20ms(50Hz)

3

IC 1 PIN 1 OR 2

T:250ns(4MHz)

• Check method

NO

MEASURE POINT

WAVE FORM

REMEDY

REMARK

 

 

 

 

 

1

MP1

DC -5V±0.25V

Replace VL1, EC1

NO LOAD

 

 

 

 

 

2

MP2

DC -12V±2.0V

Replace EC2, D9, 10, 11

NO LOAD

 

 

 

 

 

NOTE :

Each measure point must be measured with GND points.

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Contents Microwave Oven Table of Contents Safety and Precautions Do not Attempt to Operate this Appliance with the Door OpenKOR-63FB9S KOR-63FB0S SpecificationsKOR-63DB9S KOR-63DB0S Outer Dimension External ViewFeature Diagram Start Control PanelMIN Speedy CookInstallation Steady, flat locationWattage output chart Operations and FunctionsDisassembly and Assembly To remove door assembly To remove cabinetTo remove door parts REF no Part Code Part Name Description ’TY RemarkPage To remove control panel parts High voltage circuit wiring To remove magnetron To remove high voltage capacitorTo remove wind guide assembly To remove H.V.transformerInterlock Mechanism and Adjustment AdjustmentCheck Result Trouble Shooting GuideCondition CauseCheck Result Cause RemedyCheck Result Cause Remedy Relay RY1Continuity of the membrane Touch Assembly Programming Measurement and Test Measurement of the Microwave Power OutputProcedure Procedures Microwave Radiation TestComponent Test Procedure High voltage transformerWiring Diagram Load No Load Circuit Check ProcedurePrinted Circuit Board Check Point RemarkMeasure Point Check no Method State PointGND Point Wave FormPCB Circuit Diagram Name Symbol Specification Part Code QTY C.B. Location noTotal Assembly Exploded View and Parts ListDoor Assembly Part Code Part Name Description QTY Fuse HV Switch PushSwitch S/A Relay DWSR-1 Trans HVNO. R63DB9S002
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KOR-63DB0S, KOR-63DB9S, KOR-63FB9S, KOR-63FB0S specifications

Daewoo, a well-established brand known for its innovative home appliances, has made waves in the microwave oven market with its models KOR-63FB0S, KOR-63FB9S, KOR-63DB9S, and KOR-63DB0S. These models exemplify a commitment to both functionality and modern design while incorporating advanced technologies to enhance the cooking experience.

The KOR-63FB0S and KOR-63FB9S are standout models that offer a sleek and stylish exterior coupled with powerful cooking performance. Both are equipped with inverter technology, which allows for precise temperature control and even cooking. This innovation ensures that food is heated uniformly, minimizing the risk of hotspots that can occur with traditional microwave ovens. The KOR-63FB9S also features a premium stainless steel finish, adding a touch of elegance to any kitchen.

On the other hand, the KOR-63DB9S and KOR-63DB0S focus on providing users with an intuitive interface. These models come with a user-friendly digital display and touch controls, making it easier to navigate various cooking settings. The one-touch cooking options offer convenient presets for popular dishes, allowing users, even those with limited cooking experience, to prepare meals effortlessly.

All four models boast a spacious internal capacity, accommodating large dishes and multiple servings—ideal for families or gatherings. The microwave ovens feature a power output of 1000 watts, ensuring quick and efficient cooking. The defrost function is particularly noteworthy, enabling precision thawing of meats and seafood, which helps to preserve the texture and flavor of ingredients.

Safety is a priority for Daewoo, and these models are equipped with child safety locks, preventing unintended use and giving parents peace of mind. The removable and washable turntable also enhances ease of cleaning, making maintenance hassle-free.

In summary, the Daewoo KOR-63FB0S, KOR-63FB9S, KOR-63DB9S, and KOR-63DB0S combine cutting-edge technology with modern aesthetics, catering to both style-conscious consumers and those seeking convenient cooking solutions. With features such as inverter technology, user-friendly digital interfaces, and robust safety measures, these microwaves stand out as excellent choices for anyone looking to upgrade their kitchen appliances.
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