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随着激光视听设备和电脑光驱的日趋普及,各种形式、内容丰富的激光唱碟,影碟,游戏及软件碟层出不穷。以下介绍的三款特殊光碟,是专用于测试和检修视听设备和各种光驱的工具。 ①CD机测试,示范金碟 内容分四部分,45个段落。第一部分是标准信号测试,其中包括一般性和声道分离度测试;频率响应测试;动态范围测试及粉红噪音等29个测试小段落。如果您的CD机质量好,在输出端就可以用示波器检测到测试片所发出的标准信号(各种参数的正弦波)。如果您的扩大机性能指标好,在其输出端也同样能检测到不失真的波形。连接好音箱
With the growing popularity of laser audio-visual equipment and computer optical drives, various forms of content-rich laser discs, DVDs, games and software discs emerge in an endless stream. The following three special discs are designed to test and repair audio-visual equipment and a variety of optical drive tools. ① CD test, demonstration Gold Disc content is divided into four parts, 45 paragraphs. The first part is a standard signal test, including general and channel separation test; frequency response test; dynamic range test and pink noise test 29 small passages. If your CD player is of good quality, you can use the oscilloscope to detect the standard signal (sine wave of various parameters) from the test piece on the output. If your amplifier’s performance is good, it will also detect undistorted waveforms at its output. Connect the speakers