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随着电子科技的不断发展,彩电不断地升级,功能越来越多。如何开发老彩电的新功能这是者彩电用户的热门话题。下面我就以乐华TC511—2PD/1(R)(20英寸)彩电开发新功能,加装音频视频接口的过程介绍给读者,望能在老彩电加装AV接口,改造升级方面起到抛砖引玉的作用。一、加音频、视频装置加装机频信号接口,主要解决两个问题,即视频信号输入机内的极性与幅度。乐华TC511-2PD/Ⅱ(R)彩电,公共通道集成块D5132输出的是正极性视频信号,经过V_(102)视频信号发射极输出器分别送到色度解
With the continuous development of electronic technology, color TV constantly upgrade, more and more functions. How to develop the new features of old color TV This is a hot topic for color TV users. Here I will Lehua TC511-2PD / 1 (R) (20 inch) color TV to develop new features, installation of audio and video interface process introduced to the reader, hope to install AV interface in the old color TV, upgrade to play a valuable part Role. First, add audio and video devices installed frequency signal interface, mainly to solve two problems, that is, the video signal input polarity and amplitude within the machine. Lehua TC511-2PD / Ⅱ (R) color TV, public channel integrated block D5132 output is a positive video signal, after V_ (102) video signal emitter output were sent to the chroma solution