Daewoo KOR-6Q2B5S service manual Component Test Procedure, High voltage transformer

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3.COMPONENT TEST PROCEDURE

•High voltage is present at the high voltage terminal of the high voltage transformer during any cooking cycle.

•It is neither necessary nor advisable to attempt measurement of the high voltage.

•Before touching any oven components or wiring, always unplug the oven from its power source and discharge the capacitor.

1.High voltage transformer

(1)Remove connections from the transformer terminals and check continuity.

(2)Normal readings should be as follows:

Secondary winding ...................Approx. 140Ω ±10% Filament winding....................................Approx. 0Ω Primary winding .....................................Approx. 2Ω

2.High voltage capacitor

(1)Check continuity of capacitor with meter on the highest OHM scale.

(2) A normal capacitor will show continuity for a short time, and then indicate 10MΩ once the capacitor is charged.

(3)A shorted capacitor will show continuous continuity.

(4)An open capacitor will show constant 10MΩ .

(5)Resistance between each terminal and chassis should be infinite.

3.High voltage diode

(1)Isolate the diode from the circuit by disconnecting the leads.

(2)With the ohmmeter set on the highest resistance scale measure the resistance across the diode terminals. Reverse the meter leads and again observe the resistance reading.

Meter with 6V, 9V or higher voltage batteries should be used to check the front-back resistance of the diode, oth- erwise an infinite resistance may be read in both directions.

A normal diode’s resistance will be infinite in one direction and several hundred KΩ in the other direction.

4. Magnetron

For complete magnetron diagnosis, refer to “Measurement of the Microwave Power Output”. Continuity checks can only indicate and open filament or a shorted magnetron.

To diagnose for an open filament or a shorted magnetron.

(1)

Isolate magnetron from the circuit by disconnecting the leads.

(2)

A continuity check across magnetron filament terminals should indicate 0.1Ω or less.

(3)A continuity check between each filament terminal and magnetron case should read open.

5.Fuse

If the fuse in the primary and monitor switch circuit is blown when the door is opened, check the primary and monitor switch before replacing the blown fuse.

In case the fuse is blown by an improper switch operation, replace the defective switch and fuse at the same time. Replace just the fuse if the switches operate normally.

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Contents Microwave Oven Table of Contents Safety and Precautions Do not Attempt to Operate this Appliance with the Door OpenSpecifications KOR-6Q2B5SOuter Dimension External ViewFeature Diagram Safety Interlock System Control PanelOven Front Plate Control Panel Installation 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 Switch Membrane KOR-6C2B5S To remove control panel partsControl Panel Hips PCB ASHigh voltage circuit wiring To remove magnetron To remove high voltage capacitorMagnetron To remove wind guide assembly To remove H.V.transformerInterlock Mechanism and Adjustment AdjustmentTroubleshooting Guide Check Result Cause RemedyCheck Result Cause Remedy Relay RY1Display does Check each pad for Normal Malfunction Measurement of the Microwave Power Output ProcedureMeasurement and Test Procedures Microwave Radiation TestComponent Test Procedure High voltage transformerWiring Diagram Circuit Check Procedure Printed Circuit BoardLoad No Load Check Point RemarkMP1 GND State Point Check no MethodPCB Circuit Diagram Name Symbol Specification Part Code ’TY PCB Location noExploded View and Parts List Door AssemblyTotal Assembly Part Code Part Name Description QTY Daewoo Electronics Corp

KOR-6Q2B5S specifications

The Daewoo KOR-6Q2B5S is an innovative microwave oven that combines user-friendly functionality with advanced cooking technology. This model has garnered attention for its unique features, enabling efficient meal preparation while maintaining a sleek and modern design.

One of the standout features of the Daewoo KOR-6Q2B5S is its spacious 20-liter capacity, making it suitable for a variety of cooking needs. Whether reheating leftovers, defrosting meat, or cooking a full meal, this microwave can accommodate different dish sizes. The compact dimensions also make it easy to fit into standard kitchen cabinetry, providing versatility for various kitchen layouts.

Equipped with a powerful 700 watts of microwave power, the KOR-6Q2B5S ensures quick and even cooking results. The unit features multiple power levels, allowing users to select the ideal setting for different food types. This adaptability means that delicate items can be cooked without risk of burning, while sturdy foods can be prepared efficiently.

The KOR-6Q2B5S is designed for convenience, incorporating an intuitive control panel with a digital display. This user-friendly interface simplifies operation, allowing users to effortlessly set cooking times and power levels. Additionally, the microwave includes pre-programmed auto-cook menus, which take the guesswork out of meal preparation. These presets cater to popular food items such as popcorn, pizza, and more, ensuring optimal results every time.

Another notable feature is the express cooking function, which enables users to quickly start cooking at full power with just a single touch. This is particularly useful for those in a hurry, preserving both time and energy during busy meal times.

The Daewoo KOR-6Q2B5S also emphasizes safety and efficiency. It is equipped with a child safety lock, giving parents peace of mind when children are in the kitchen. The microwave's energy-efficient design also helps minimize electricity consumption, making it an eco-friendly choice.

In conclusion, the Daewoo KOR-6Q2B5S is a well-rounded microwave oven that successfully combines capacity, power, and user-centric features. Its thoughtful design and innovative technology make it an excellent addition to contemporary kitchens, appealing to anyone seeking convenience without compromising quality.
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