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Now downloading free:Samsung 20040206100332187 j54a tm english 423

Samsung 20040206100332187 j54a tm english 423 free download

LCD television

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File name:20040206100332187_j54a_tm_english_423.pdf
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Descr: Samsung LCD TV SP43W6HEX Chassis J59A SP43W6HFX 20040206100332187_j54a_tm_english_423.pdf
Group:Electronics > Consumer electronics > TV > LCD TV
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File name 20040206100332187_j54a_tm_english_423.pdf

J54A Chassis Training Manual Contents 1. Basic Principles of PJTV 2. J54A Model Specifications 3. J52A vs J54A 4. Block Diagram 5. PJTV Exploded View 6. Adjustments 7. Troubleshooting 8. New Model in 2004 1. Basic Principles of PJTV A rear-type CRT projection TV magnifies and projects the image formed by R, G, B monochroma CRTs onto a large screen, finally displays the image on the screen. Different from a front-type projector, it has a mirror between lens and screen that is suitable for the home theater MIRROR because it is slim type. Optical Block - R, G, B monochroma CRTs SCREEN - Lens and mirror that magnify and project the image from the CRT onto a large screen. - Screen that forms the ultimate image that is SUN SCREEN projected through the lens. LENS Mechanical Block - Cabinets, doors, etc. that consist of the exterior of a projection TV. CRT (R/G/B) MECHANISM Circuit Block CRT PWB - Circuit composed to form the image on CRT - Signal processing unit of input video and sound CIRCUIT - Power supply unit that drives circuit to operate. Optical Part An optical block is classified into three major parts, CRT, LENS and SCREEN CRT Part It consists of 7 monochromatic CRT (Red, Green and Blue) and its peripheral factors in similar to a common visual straight CRT, an electron gun emits electrons collided onto a fluoressent front of CRT generating an image. It requires a cooling system against over heating resulted from establishing a high degree of brightness at an infinitesimal area. LENS Part It consists of many layers of Lens and Mirrors in order to magnify/project an image of CRT and enhanced color purity Lens with respect to Red, Green and Blue CRT respectively. - One main lens : It magnifies a CRT image to a certain scale and determines a final image scale on a screen. - Three calibrating lenses : It corrects a degree of chromatic purity/aberration. It determines a main spec. of appliance, such as composition scale, projection distance, image size. SCREEN Part It makes a final and optimum quality of image by reflecting or refracting a CRT image. It consists of Fresnel, Lenticular and Contrast screen. - Fresnel : It converges projected lights - Lenticular : It diffuses out a light to each viewer's location - Contrast screen : I

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