Daewoo KOR-630A9A, KOR-630A1A, KOR-630A0A service manual Trouble Shooting Guide, Check Result

Page 18

TROUBLE SHOOTING GUIDE

Following the procedure below to check if the oven is defective or not.

1.Check grounding before trouble checking.

2.Be careful of the high voltage circuit.

3.Discharge the high voltage capacitor.

4.When checking the continuity of the switches, fuse or high voltage transformer, disconnect one lead wire from these parts and check continuity with the AC plug removed. To do otherwise may result in a false reading or damage to your meter.

NOTE : When electric parts are checked, be sure the power cord is not inserted the wall outlet.

Check wire harness, wiring and connected of the terminals and power cord before check the parts listed below.

(TROUBLE 1) Oven does not operate at all ; any inputs can not be accepted.

CONDITION

Fuse blows.

 

CHECK

 

 

 

RESULT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check continuity of interlock

 

 

 

Continuity

 

 

 

 

 

 

 

monitor switch with door closed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No Continuity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace fuse

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUSE

Malfunction of interlock moni- tor switch

REMEDY

Replace

NOTE 1

Check continuity of of primary interlock switch contact with door

partially open until interlock moni- tor switch contact close

Check continuity of primary winding of low voltage trans- former

Continuity

0Ω or infinite

Approx.

150~310

(normal)

Shorted con- tacts of primary interlock switch.

Defective low voltage trans- former

Replace

NOTE 1

Replace

Disconnect one side of the lead wire connected form high volt- age transformer to the high volt- age capacitor and operate the unit

Normal

Fuse again

blows

Defective high voltage capacitor

Defective high voltage trans- former

Replace

Replace

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Contents Microwave Oven Table of Contents Safety and Precautions For Safe OperationSpecifications KOR-630A0A, KOR-630A1A KOR-860A0A, KOR-860A1AOuter Dimension External ViewFeature Diagram Control Panel Installation Leave space behind and sideWattage output chart Operations and FunctionsDisassembly and Assembly To remove cabinet REF no Part Code Part Name Description ’TY Remark Part Code Part Name DescriptionPage To remove control panel parts To remove high voltage capacitor To remove wind guide assembly Interlock Mechanism and Adjustment AdjustmentTrouble Shooting Guide Check ResultCheck Relay RY1 Continuity of the membrane Touch Assembly Programming Measurement of the Microwave Power Output ProcedureMeasurement and Test Procedures Microwave Radiation TestComponent Test Procedure High voltage transformerWiring Diagram KOR-630A1A/KOR-860A1A Check Point Remark Circuit Check ProcedurePrinted Circuit Board Measure Point Wave Form Remedy RemarkMeasure Point Relay 2 OFF State Point Relay 2 onGND State Point Relay 1 onPCB Circuit Diagram Name Symbol Specification Part Code QTY C.B. Location noCapacitor Elec EC1 50V RS IMF Wire Copper SJ1,SJ3 TIN Coating Exploded View and Parts List Door AssemblyPart Code Part Name Description QTY CONTROL-PANEL AS KOR-860AOA CONTROL-PANEL AS Total ASSEMBLYKOR-630A1A/860A1A Special Screw T1 TRS 4*10 SE Mfzn KOR-860A1A

KOR-630A0A, KOR-630A1A, KOR-630A9A specifications

The Daewoo KOR-630 series of microwave ovens, including models KOR-630A9A, KOR-630A1A, and KOR-630A0A, represent a blend of innovative technology and user-friendly designs tailored for modern cooking needs. This range positions itself as a reliable choice for households seeking efficiency and performance.

One of the standout features of the KOR-630A9A, KOR-630A1A, and KOR-630A0A is their impressive power output. These models typically offer a microwave power of around 900 watts, ensuring quick heating and cooking times, which is essential for busy lifestyles. This power allows users to defrost, reheat, and cook meals in a fraction of the time compared to conventional methods.

The KOR-630 series incorporates advanced cooking technologies, including multiple power levels. This flexibility allows for precise cooking control, enabling users to select the ideal power output for various tasks, from gentle defrosting to robust cooking. Additionally, the ovens come equipped with various automatic cooking programs designed to simplify meal preparation. These pre-set options take the guesswork out of cooking, making it incredibly convenient for users of all skill levels.

In terms of design, the KOR-630 models boast a sleek and modern aesthetic that complements any kitchen decor. The user-friendly control panel features intuitive buttons and rotary dials, making it easy to navigate settings and adjust cooking times. The interior space is designed with practicality in mind, allowing for the accommodation of larger dishes, and features a durable and easy-to-clean surface.

Another key characteristic of the KOR-630 series is its safety features. Child safety locks are incorporated into the design, providing peace of mind for families with young children. Additionally, the ovens are built with an efficient cooling system, which helps prevent overheating during operation, contributing to both user safety and appliance longevity.

Overall, the Daewoo KOR-630A9A, KOR-630A1A, and KOR-630A0A microwave ovens demonstrate a commitment to quality, performance, and innovation. They succeed in enhancing the cooking experience while prioritizing convenience and safety, making them an excellent addition to any kitchen. Whether for reheating leftovers, defrosting frozen ingredients, or cooking meals from scratch, this series offers versatile solutions that cater to a wide range of cooking needs.
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