Panasonic Generation Plasma Display Television manual Video Process Block Diagram

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Video Process Block Diagram

The main function of the A board is to select and process one of the incoming video signals. Video inputs 1 and 2, Component Video Inputs 1 and 2 and the composite video output of the tuner are all are connected to IC3001 for selection. The video output signal of the switch can be in any of the three formats: Video, Y/C, or Y, Pb, Pr. The selected output enters IC4510, the HDMI IF Receiver/Decoder IC, for A/D conversion.

The comb filter inside IC4510 converts the composite video signal of the main picture to Y and C (luminance and chrominance) signals. S-Video, which is already Y/C separated, simply passes through the comb filter. The chrominance data is then applied to the Chroma Demodulator circuit to separate the color signal into Pb and Pr data. At the completion of this process, the format of the composite or S-Video signal is now the same as a digital 480i component signal. If the incoming video is in the 480p, 720P, or 1080i format, the Y, Pb, and Pr signals undergo A/D (analog to digital) conversion only. The 10 bit YUV data is provided to a video switch.

The HDMI receiver section of IC4510 converts the incoming HDMI signals to a YUV video signal. The Video interface circuit selects between the two HDMI sources and outputs the YUV signal to the switch. The output of the switch is provided to another switch located inside the PEAKS LITE IC, IC8001.

Digital television reception of the tuner is output in the form of an IF (Intermediate Frequency) signal

IC8302 contains a detector circuit that retrieves the Transport stream from the IF signal. The transport stream then enters the DTV I/F (Interface) section of IC8001 where the video signal is extracted and converted to YUV data. The output is provided to the Video Input I/F for selection. The JPEG data of the SD card enters the JPEG I/F section of IC8001 for conversion into YUV data and output to the Video Input I/F circuit. The video input interface outputs the selected picture data to the video process circuit.

This Video Process section of the IC performs all picture control operations such as brightness, contrast, color, tint, etc. On Screen Display data such as channel numbers, Digital TV closed caption, and picture adjustments are mixed with the video data. The output signal is then applied to the LVDS (Low Voltage Differential Signaling) transmitter for conversion into serial data. The LVDS transmitter transfers the video information from the A board to the D board. It distributes signals with low-jitter, while creating little noise. It reduces power consumption and the generated noise from data transmission. Another benefit of the LVDS standard is minimal concern for cable length.

The main MCU handles all video applications. It serves as the controller that monitors all operations of the TV section (not display) of the unit.

When watching digital television or viewing pictures from an SD card, the digital YUV output of the Video Input Interface is converted into analog composite video signal for output at the monitor out jack.

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Contents Panasonic Service and Technology Company Panasonic Service and Technology Company Table of Contents Table of Contents Panasonic Plasma Line-up Models Comparison Models Comparison Models Comparison High Resolution FULL-HD Panel Page Board Layout Page TH-42PX75UBoards Layout & Description TH-42PX75UBoard Layout Pictorial 2006/2007 Signal Process/Switching Circuit Overall Block Diagram Overall Block Diagram Page Power Supply Page Standby Circuit Standby Circuit Standby Circuit Standby Circuit STB5V/STB3.3V Distribution STB5V P25STB5V Main CPU VCC Supply a Board Main CPU VCC Supply a Board TVSUBON/TUNERSUBON TVSUBON/TUNERSUBON Tvsubon Fstbon Tvsubon Fstbon Tvsubon Relay Drive Circuit Tvsubon Relay Drive Circuit PFC Circuit Acfb Active Clamp Full Bridge Switching Circuit Acfb Active Clamp Full Bridge Switching Circuit MAIN/SUB Voltages MAIN/SUB Voltages +15V, DTV9V, SUB5V SOS Detect Circuit +15V, DTV9V, SUB5V SOS Detect Circuit Power On Operation Power On Operation Power-On Power-On Power On Power On Power On Power On Summary P15V/P5V Circuit P15V/P5V Circuit Vsus/Vda Circuit Vsus/Vda Circuit Troubleshooting No Power/Dead Unit Part Unplug the TVTV is plugged into Shutdown Circuits Page SOS Circuit Overview SOS Circuit Overview SOS Circuit Overview SOS Circuit Overview Drvrst SOS Drvrst SOS Location of Q9302 Close-up View of Q9302 Blinks SOS Blinks SOS SOS Drive-reset C Boards Connection Blinks SOS Blinks SOS Signal Processing Page Signal Circuit Overview Signal Circuit Overview Video Process Block Diagram Video Process Block Diagram Board Block Diagram Component Function Panel Drive TH-42PX75U PulsePanel Drive TH-42PX75U Audio Process Block Diagram Audio Process Block Diagram Page Adjustments Page Remote control for more than 3 seconds Self-Check FunctionHow to Reset the Unit Self-Check Menu Check point Serviceman Mode Serviceman Mode Menu and Navigation Key commandAdjustment Sub Menu Internal Test Patterns Driver Setup Adjustment Initialization Pulse Adjustment Quick adjustment after P.C.B. exchange

Generation Plasma Display Television specifications

The Panasonic Generation Plasma Display Television, a remarkable innovation in home entertainment technology, has set the standard for high-quality visual experience since its introduction. Renowned for their stunning display quality, these televisions employ advanced plasma technology to deliver vibrant colors, deep blacks, and exceptional contrast ratios. The screens are designed to produce lifelike images, available in various sizes, catering to both casual viewers and dedicated cinephiles.

One of the standout features of Panasonic’s plasma TVs is their superior color accuracy. With the ability to reproduce a wide color spectrum, these displays bring scenes to life, making colors appear more vivid and true to the original. The Real Black Drive technology enhances the display's ability to produce deeper blacks, resulting in richer image quality and an overall more immersive viewing experience, especially in dark environments.

In addition to impressive visuals, Panasonic also focuses on audio quality. Many models feature integrated sound systems that complement the stunning visuals, providing clear, balanced sound. For users looking for even more audio fidelity, the televisions are compatible with various external sound systems, enhancing the home theater experience.

The Panasonic Generation Plasma televisions are equipped with advanced connectivity options. HDMI ports, USB inputs, and built-in Wi-Fi functionality allow users to connect a wide range of devices, from gaming consoles to streaming set-top boxes, ensuring compatibility with modern technology. With smart TV capabilities, users can access streaming services, browse the internet, and enjoy a multitude of apps from the comfort of their couch.

Furthermore, energy efficiency is a key consideration in Panasonic’s design philosophy. Many models are built with energy-saving features that reduce power consumption without compromising performance, appealing to environmentally conscious consumers.

Durability and reliability are also notable characteristics of Panasonic plasma TVs. Designed for extended use, their robust screens are less prone to image retention, a common concern with plasma technology. With proper care, these televisions can deliver exceptional performance for years.

In summary, the Panasonic Generation Plasma Display Television exemplifies the pinnacle of plasma technology, offering superior imaging, impressive audio capabilities, extensive connectivity, and energy efficiency. This television series remains popular among consumers seeking a premium viewing experience. The fusion of these cutting-edge technologies ensures that every movie, show, or sporting event is enjoyed to its fullest potential, marking Panasonic as a leader in the realm of home entertainment technology.
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