Daewoo 181GOA0A 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. 110 Filament winding ... Approx. 0

Primary winding ... Approx. 1

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 10M once the capacitor charged.

3)

A shorted capacitor will show continuous continuity.

4)

An open capacitor will show constant 10M .

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, otherwise an infinite resistance may be read in both directions. A normal diode’s resistance will be infinite in one direction and several hundred k 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 0.1 ￿ 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 For Safe Service Procedures Safety and PrecautionsFor Safe Operation Microwave RadiationSpecifications External View Outer DimensionSafety Interlock System Control Panel Glass Cooking Tray Feature DiagramDoor Seal Door HookKOR-180A0A Stop KOR-181G0ALeave space behind and side InstallationOperations and Functions Wattage output chartDisassembly and Assembly To remove cabinet To remove door assemblyREF no Part Code Part Name Description Remark To remove door partsPage Button Door Open To remove control panel partsTo remove high voltage capacitor High voltage circuit wiring To remove magnetronTo remove H.V.transformer To remove wind guide assemblyPrimary interlock switch Interlock Mechanism and AdjustmentCondition Trouble Shooting GuideCheck Result CauseCondition Check Result Cause Remedy CheckRelay RY1 With wires removedCause Remedy Procedure Measurement of the Microwave Power OutputMeasurement and Test Microwave Radiation Test High voltage transformer Component Test ProcedureWiring Diagram Printed Circuit Board Circuit Check ProcedureCheck Point Remark Measure Point Wave Form Remedy RemarkMesure point GND Point StateCheck no Hethod Remedy Point Wave FormPCB Circuit Diagram C.B. Location no Name Symbol Specification Part Code Door Assembly Exploded View and Parts ListControl Panel Assembly Total AssemblyPart Code Part Name Description ’TY Lamp Lock POM BlackScrew Tapping T2S PAN 4X6 Mfzn Motor SyncroNO. R180A0A002

181GOA0A specifications

The Daewoo 181GOA0A is a compact and versatile mini excavator designed to provide optimum performance in a range of construction and landscaping applications. Known for its robust build quality and reliability, the 181GOA0A is an excellent choice for both professional contractors and DIY enthusiasts.

One of the standout features of the Daewoo 181GOA0A is its powerful engine. The excavator is equipped with a highly efficient diesel engine that offers a balanced blend of power and fuel efficiency. This engine enables operators to tackle challenging terrains and heavy workloads with ease, ensuring productivity remains high throughout the day.

The excavator boasts a compact size, making it particularly useful for projects in confined spaces, such as urban job sites or residential landscaping tasks. The reduced width and height allow the 181GOA0A to maneuver easily in tight areas where larger machines would struggle. This maneuverability does not compromise on performance, as the machine retains a high lifting capacity and digging depth that competes with larger excavators in its class.

In terms of technology, the Daewoo 181GOA0A features advanced hydraulic systems that ensure precise control and superior performance. The excavator is equipped with adjustable flow rates for different attachments, enhancing versatility and allowing operators to switch between tasks seamlessly. This hydraulic system also contributes to the machine's overall efficiency by maximizing power delivery to the hydraulic attachments.

Additionally, the 181GOA0A includes an ergonomic operator's cabin with intuitive controls, providing comfort and reducing operator fatigue. The cabin is designed with visibility in mind, enhancing safety during excavation tasks. Features like adjustable seating, climate control, and easy-to-reach controls make the operator’s experience more pleasant and productive.

The build quality of the 181GOA0A showcases Daewoo's commitment to durability. Engineered with high-grade materials, the excavator is built to withstand the rigors of tough job sites while requiring minimal maintenance.

In summary, the Daewoo 181GOA0A stands out as a premier choice for those needing a compact yet powerful mini excavator. The combination of its powerful engine, advanced hydraulic technology, maneuverability, and operator comfort makes it an invaluable tool for a multitude of construction and landscaping applications. Whether you are digging trenches, moving earth, or performing other excavation tasks, the 181GOA0A delivers exceptional performance and reliability.
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