Daewoo DSC-3220E/3220L service manual IN3, Out, IN1, IN2, SW1 SW2 OUT

Models: DSC-3220E/3220L

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Service manual SC-150

4-10 MM1118

4-10-1 General description

This is a 3-input, 1-output video switch IC with a clamp function and built-in 6dB amp, for video signal switching. One of the inputs also has a mute function.

4-10-2 Features

-Built-in 6dB amp -Clamp function -Mute function

-Current consumption: 5.1mA typ.

-Operating power supply voltage range: 4.6~13.0V

-Frequency response: 10MHz

-Crosstalk: 64dB (at 4.43MHz)

4-10-3

Block diagram

 

 

 

 

 

 

 

 

 

Clamp

Bias

 

Clamp

 

 

 

 

SW

 

 

 

 

 

 

 

Buffer

Clamp

 

SW

 

 

 

 

 

 

 

 

 

1

 

2

3

4

5

6

7

8

IN3

Vcc

OUT

GND

IN1

SW1

IN2

SW2

4-10-4

Pin Description

 

 

 

 

 

Pin

Symbol

Description

 

 

 

5

IN1

Input1

7

IN2

Input2

1

IN3

Input3

 

 

 

6

SW1

Switch1

8

SW2

Switch2

 

 

 

2

Vcc

Power supply

3

OUT

Output

4

GND

Ground

Control input trurh table

SW1

SW2

OUT

 

 

 

L

L

IN1

 

 

 

H

L

IN2

 

 

 

"

H

IN3

 

 

-41-

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Image 42
Daewoo DSC-3220E/3220L service manual IN3, Out, IN1, IN2, SW1 SW2 OUT

DSC-3220E/3220L specifications

The Daewoo DSC-3220E/3220L is a noteworthy addition to the lineup of high-efficiency air conditioning solutions, specifically crafted to meet the demands of varying climatic conditions. With a blend of innovative technologies and robust design, these models stand out in the realm of home and commercial air conditioning.

One of the main features of the DSC-3220E/3220L is its efficient cooling performance. The units are built with advanced rotary compressors, which are designed to operate efficiently while providing powerful cooling capabilities. This allows for quick temperature adjustments, making it an ideal choice for those who seek rapid relief from heat.

Another remarkable aspect of the DSC-3220E/3220L is its energy-efficient operation. With a superior Energy Efficiency Ratio (EER), these air conditioning units ensure that energy consumption is minimized without compromising comfort. This not only reduces electricity bills but also contributes to a smaller carbon footprint, making it an environmentally friendly choice.

The units also come equipped with state-of-the-art air filtration technologies. The multi-layer air filters are designed to capture dust, pollen, and other airborne particles, ensuring that the air in the environment remains clean and healthy. This feature is particularly beneficial for allergy sufferers and enhances the overall indoor air quality.

In terms of user convenience, the DSC-3220E/3220L models are engineered with user-friendly controls. Many features, including temperature settings and fan speeds, can be easily adjusted through a remote control or a digital display panel on the unit itself. This ensures that users can customize their comfort levels with minimal effort.

Noise reduction is another critical characteristic of the DSC-3220E/3220L. Both models are designed with silent operation in mind, making them suitable for bedrooms, offices, and other environments where noise can be a distraction. The sound insulation techniques employed help maintain a serene atmosphere while enjoying optimal cooling.

Furthermore, installation of the DSC-3220E/3220L air conditioning systems is straightforward, making them accessible for residential and commercial settings alike. The compact design and versatility in installation options allow these units to fit seamlessly into various spaces without sacrificing performance.

Overall, the Daewoo DSC-3220E/3220L embodies a fine balance of efficiency, technology, and user-centric design, making it a commendable choice for air conditioning needs in diverse settings. With its reliable performance and thoughtful features, it continues to gain popularity among consumers looking for effective climate solutions.