Daewoo DPB-280LH service manual PCB Driving Description, Power Supply1, Oscillator2

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4PCB DRIVING DESCRIPTION

Power Supply(1)

 

 

CL1 VAR

AC 220V

 

275V

 

FUSE1

104K

 

 

 

3.15A

 

POWER TRANS

 

 

 

 

 

 

12V

 

 

 

 

5V

 

D1

D2

 

 

IC2

 

 

IC3

 

 

 

 

 

 

CC1

CE1

7812

CC2

CE2

7805

CC3

CE3

 

 

 

VI

VO

VI

VO

 

 

 

 

 

 

 

 

 

 

D4

 

 

+

 

G

 

+

G

 

+

 

 

 

 

 

 

 

 

 

 

D3

104

35V

 

 

104

25V

 

 

104

16V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1000F

 

 

 

470F

 

 

 

100

F

DESCRIPTION

DC Power Supply in circuit needs +12V and +5V. +12V is used for Compressor Driving Relay, Triac Driving Photo Triac, Buzzer Driving, Stepping Motor. AC voltage of secondary Power Transformer is rectified by Bridge Diode, and it is filtering by Main Condensor CE1.

Filtered DC voltage is about +18V, is regulated +12V DC by Regulator IC7812. And it is regulated +5V DC by Regulator IC7805.

VAR is serge filter and CC1, CC2, CC3 is Noise filter.

Oscillator(2)

19

20

 

 

 

 

 

 

 

 

5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CC13

 

OSC

 

 

 

 

 

 

 

 

 

104

 

 

8M

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DESCRIPTION

Oscillatory Frequency drive Micom, it is made up 8MHz resonator oscillatory Freqency. Ocillatory wave is as following Fig 2-1.

VDD-10%

VSS+10%

Fig 2-1

23

Image 24
Contents Floor Standing AIR Conditioner Contents Installation Guide Installation PlaceSpace to Install Installation of Indoor Unit Installation of Outdoor UnitRefrigerant Tube Connection Electrical Wiring Spec ColorSpecifications DPB-280LHOutline Indoor UnitOutdoor Unit Operation Parts of Name and FunctionIndoor Unit Room Temperature / Desired Temperature Indicator Outdoor Unit Outdoor Unit AIRRemote Controller Name of Each ButtonRemote Controller Display Replacing BatteriesOFF-Timer ON-TimerControl of Room Temperature Description of FunctionsFan Speed Indoor Unit Sleep Mode Frost Prevention of Indoor UnitMin. Time Delay of Compressor Seconds Time Delay of Indoor Fan MotorAuto Mode Dehumidification Mode Quick ModePowerful Cooling & HeatingSelf-Diagnostic Function Air Discharge DirectionCircuit Diagram Type/model Technical data Standard Main Electric PartsPCB Circuit Diagram Part Code Part Name Quantity Specification Heat Shink Power Supply1 PCB Driving DescriptionOscillator2 Sensor3 Resistance & Voltage of the SensorTriac Driving4 Remote Controller5 Micom Power Supply7 Reset8 Function Selecting9 Buzzer Driving10Zero Crossing Detect11 Stepping Motor Driving12 Micom Darlington Arrays KID65004 Reset IC KIA 7042P Refrigerant Cycle Indoor UnitTrouble Shooting Neither Indoor Unit nor Outdoor Unit Runs Outdoor Unit Runs but Indoor Unit Do Not Run Outdoor Fan Do Not Run Only Compressor Do not Run Remote Controller Assmbly Functional Test Method ~24 Hour Exploded Diagram Page Part Code Part Name Quantity Remarks Bracket Front R Outdoor Unit Page Base PAN Paint Assy Printed Date APR.1999

DPB-280LH specifications

The Daewoo DPB-280LH is a standout in the realm of compact yet powerful pressure washers, engineered to meet the needs of both homeowners and professionals seeking effective cleaning solutions. Its blend of performance, portability, and user-friendly design makes it an essential tool for a variety of tasks.

One of the most notable features of the DPB-280LH is its robust motor. With a powerful 2800 PSI pressure output, it is capable of tackling tough grime, dirt, and stains across multiple surfaces including vehicles, patios, and decks. This level of power ensures that users can achieve impressive cleaning results without the need for strenuous scrubbing.

The technology behind the DPB-280LH includes an efficient pump system, which is designed to maximize water flow while minimizing water consumption. This not only enhances cleaning efficiency but also promotes environmental sustainability—a feature increasingly valued by users today. In addition, the unit boasts an impressive flow rate, further contributing to its effectiveness in achieving rapid cleaning results.

Durability is another hallmark of the Daewoo DPB-280LH. Constructed with high-quality materials, this pressure washer is built to withstand rigorous use, making it a reliable companion for regular cleaning tasks. The design includes reinforced components that ensure longevity, even in demanding environments.

Portability is key to the DPB-280LH's appeal. It features an ergonomic handle and a lightweight frame, making it easy to maneuver around different cleaning areas. The integrated wheels enhance mobility, allowing users to transport it effortlessly from one job site to another. This is particularly beneficial for those who may need to clean large outdoor spaces or tackle multiple projects in various locations.

The DPB-280LH also incorporates user-friendly features, such as an easy-to-use trigger gun and adjustable spray settings. This versatility allows users to customize the pressure according to the specific cleaning task, whether rinsing off a car or removing grime from a driveway.

Additionally, the unit supports various cleaning attachments, including different nozzles and brushes, thereby enhancing its versatility. Such adaptability ensures that it is equipped to handle a wide variety of cleaning challenges.

In summary, the Daewoo DPB-280LH combines power, portability, and user-centric features to deliver an exceptional pressure washing experience. With its durable construction, potent motor, and versatile capabilities, it stands out as an essential tool for anyone looking to achieve thorough cleaning results efficiently and effectively. Whether for home use or professional tasks, the DPB-280LH is a reliable choice that promises to meet and exceed expectations.