Daewoo KOR-6Q2B5S service manual Check Result Cause Remedy, Relay RY1

Page 20

(TROUBLE 3) No microwave oscillation even though fan motor rotates.

CONDITION

 

CHECK

 

RESULT

 

CAUSE

 

 

 

 

 

 

 

REMEDY

No

microwave oscillation

Continuity

Check continuity of high

voltage fuse

Replace high voltage fuse

 

 

 

 

Continuity

Check continuity of high

 

 

 

 

 

 

 

 

voltage capacitor terminals

 

 

 

with wires removed

 

 

 

 

 

 

 

 

Check continuity of high voltage

 

 

 

 

Continuity in

 

 

 

 

rectifier in forward and backward

 

 

 

backward

direction with DC megger

 

 

 

direction

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Continuity

Connect megger leads to mag-

 

 

 

 

 

 

 

 

 

 

 

netron terminal and magnetron

 

 

 

 

body

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0 or

Check resistance of primary and

 

 

 

 

 

 

 

 

 

 

 

secondary coil of high voltage

 

 

 

 

transformer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

Check continuity of magnetron

 

 

 

 

 

 

Continuity

with wires removed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

Check continuity of filament termi-

 

 

 

 

 

 

Continuity

nal of high voltage transformer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0 V

Check D.C. voltage being sup-

 

 

 

 

 

 

 

 

 

 

 

plied to RELAY (RY1) coil

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Approx

 

 

 

 

 

 

 

 

 

 

15 V DC

 

 

 

 

 

 

Defective high voltage trans- former

Defective high voltage rectifier

Defective mag-

netron

Defective high voltage trans- former

Defective mag-

netron

Defective high voltage trans- former

Defective touch

control circuit

Faulty

contacts or

RELAY (RY1)

or open

relay coil

Replace

Replace

Replace

Replace

Replace

Replace

Replace

Replace

19

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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 ViewOven Front Plate Feature DiagramSafety Interlock System Control Panel 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 ASMagnetron High voltage circuit wiring To remove magnetronTo remove high voltage capacitor 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 and Test Measurement of the Microwave Power OutputProcedure 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 noTotal Assembly Exploded View and Parts ListDoor 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.