Daewoo DSC-3220E/3220L service manual Controlled Rectifier 6V DC High

Page 69

Service manual SC-150

I810

CONTROLLED

RECTIFIER

6V DC

HIGH				R829

R830

R820

C830

HIGH

Q807

Q808

LOW

HIGH

Q809

POWER LOW

Fig : I810 controlled rectifier switching circuit

* TV set stand-by mode operations

-On stand-by mode, I501 microcontroller pin 1 (power) is set to low.

-So, Q809 collector is set to high.

-Then, I810 controlled rectifier gate pin is set to high and I810 is conducting.

-So, current flows from pin 16 SMPS transformer to the ground via I804 optocoupler and Q810 and Q811 transistors (which are conducting).

-In these conditions, I801 delivers pulses on light mode and T801 produces voltages with reduced power.

-As I810 is conducting, current flows also from pin 16 SMPS transformer to I823 (5V / 3.3V regulator) for I501

com, IR receiver and front mask buttons supply voltage (then, remote control or front mask buttons can be activated to leave stand-by mode).

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Image 69

Contents Chassis SC-150 Contents General description Main PCB Union PCB Power consumption Main FeaturesSound Output Power Tuning systemSvhs Pin Signal Description Matching value Page C02 C01C03 C04639.25 S11 S10S12 S13Special case Country selection = Others Program Group SkipITV RAY Radiation Precaution Safety instructionAlignment instructions Order Default settingh for SC-150Parabola HOR WidthOption HOR Paral BOW HOR Width Corner EW Trapez VCT IC descriptionPage Page IC version VCT 3832A VCT 3834A Chassis IC marking OSD languages Atss countries TextPin Name Type Short Description Gndaf Supply AGC Page Analogue Section DSP-Section Audio Baseband ProcessingNicam plus FM/AM-Mono German 2-Carrier System Dual FM SystemSECAM-L PALUssr AdrselDvsup ResetqDvss VREF2ANAIN1 FeaturesTesten XtalinPin Symbol Function GND1 OUT1OUT1+ ModeTDA8946J Page GND Block diagram TDA6107Q SCL SDAPage VIN OVP Pin Name Symbol DescriptionIIN H TJ TSDDescription IC Pins Symbol Rating Unit I2C Decoder SW0 SW1SW2 SW3OUT IN3IN1 IN2VEE Circuit description If section Block diagram Vision if Amplifier FPLL, VCO and AFC Standard FeaturesPage Page Adaptive Comb Filter VCT3834A only Video Sync Processing CRT Measurement and Control Page Stand by ConfigurationDescription Application Forced KEY Page Quadrature Mixers ESCPage Page STR-F6654 general description Power supply primary part operationsPage STR-F6654 oscillating operation Latch circuit Overcurrent protection function OCPThermal shutdown circuit TSD Overvoltage protection circuit OVPTV start-up operations TV normal run and stand-by mode operations Page FBT SC-150 Controlled Rectifier 6V DC High Service Parts List Cord Power Oxide Film 2W 1.2 OHM J Small Semi Fixed CCZB1H561K Cera Carbon Film Metal Film Carbon Comp PA01A RF27 RD-4Z221J Union PCB Different Part List by PCB & Micom Version Main PCBJumper DEL JumperExplode View PCB Main PCB Union Schematic DiagramMAIN Schematic DiagramUNION

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.