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Now downloading free:Samsung BN44-00129C+Samsung

Samsung BN44-00129C+Samsung free download

LCD television

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13 Circuit Descriptions 13 Circuit Descriptions 13-1 Overall Block Structure 13-1-1 Power Tree 1. When the AD board is in DPMS state: 1.1 The IP has been designed so that it operates with a power consumption of less than 0.6W of. 1.2 The Scaler consumes power up to 37mA 1.3 The power to the panel is switched off 2. When the AD board is operating normally: 2.1 The maximum power consumption of the panel lamps is described below (It may vary depending on the panel manufacturer) 17" : 4*(7.5mA*650mVrms)=4*4.9=19.6W 19: : 4*(7.5mA*720mVrms)=4*5.4=21.6W 2.2 The power consumption of the Panel Control board is as follows: 5V*720mA=3.6W 2.3 The power consumption of the Scaler is as follows: 3.3V*245mA + 1.8V*300mA = 1.35W 13-1 13 Circuit Descriptions 13-1-2 Main Board Parts LS17PEA, LS19PEA LS19PEB 13-2 13 Circuit Descriptions 1. Inverter: A conversion device that converts DC 6. SCALER & EEPROM: I2C is a two-way serial rated voltage/current to high ones necessary bus of two lines that supports communications for the panel lamp. across the integrated circuits as well as between FLASH and EEPROM. 2. DC/DC(Regulator): General term for DC to DC In particular, FLASH and Scaler (GM5726) use converting devices. the SDR direct bus for mutual communications, The IP board receives 5V and outputs 1.8 or which is an effective, speedy system because it 3.3V that is supplied to the scaler (GM5726). allows 4 additional address/data lines com- pared to the old serial systems. 3. Power MosFET: The IP board receives 5V and outputs a lower voltage in DPMS mode and 7. Function Key: A certain keystroke generates a supplies the whole 5V for the panel operating certain electrical potential, which is transferred board in normal conditions. In that case, the into ADC input port of the Scaler and then con- switching of Power MosFET is controlled by verted to a digital value by the A/D converter of Micom. the chip. The digital value (data) is a clue to which key is entered. In practical, the voltage 4. Scaler: Receives the digital TMDS and analog levels are set as below. R,G,B signals and convert them to proper reso- lutions using up- or down- scaling that are transferred to the panel in the LDVS formats. 5. Crystal(Oscillator): Use one 14.318MHz oscilla- tor externally to supply power to both MCU and Scaler at the same time.

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