Daewoo 181GOA0A manual Printed Circuit Board, Circuit Check Procedure, Check Point Remark, No Load

Page 27

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: 120V / Frequency: 60Hz

Terminal Voltage

LOAD

NO LOAD

 

 

 

4-7

AC 12.6 V

AC 14.7 V

 

 

 

NOTE

1.Refer to Ciruit 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

2.Voltage Check

- Key check point

NO

CHECK POINT

REMARK

 

 

 

1

IC1 PIN 2, 21, 30, 34

-5VDC

 

 

 

2

IC1 PIN 35

 

T : 16.67ms(60Hz)

3

IC1 PIN 31 OR 32

T : 250 ns(4MHz)

- Check method

NO

MEASURE POINT

WAVE FORM

REMEDY

REMARK

 

 

 

 

 

1

MP1

 

Replace VL1, EC1

NO LOAD

 

 

 

 

 

2

MP2

 

Replace EC2, D12,13,14

NO LOAD

 

 

 

 

 

NOTE

Each measure point must be measured with GND points.

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Contents Microwave Oven Table of Contents Microwave Radiation Safety and PrecautionsFor Safe Service Procedures For Safe OperationSpecifications External View Outer DimensionDoor Hook Feature DiagramSafety Interlock System Control Panel Glass Cooking Tray Door SealKOR-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 AdjustmentCause Trouble Shooting GuideCondition Check ResultCondition Check Result Cause Remedy CheckRelay RY1 With wires removedCause Remedy Measurement of the Microwave Power Output ProcedureMeasurement and Test Microwave Radiation Test High voltage transformer Component Test ProcedureWiring Diagram Measure Point Wave Form Remedy Remark Circuit Check ProcedurePrinted Circuit Board Check Point RemarkMesure point Point Wave Form Point StateGND Check no Hethod RemedyPCB Circuit Diagram C.B. Location no Name Symbol Specification Part Code Total Assembly Exploded View and Parts ListDoor Assembly Control Panel AssemblyPart Code Part Name Description ’TY Motor Syncro Lock POM BlackLamp Screw Tapping T2S PAN 4X6 MfznNO. 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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