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从海外进口的单N制彩电,大多是90年代初期产品。这类彩电价格便宜(34英寸才4800元),且都采用新电路、新技术、新器件。尤其是25英寸以上的大屏幕彩电,为了获得高清晰、高分辨率的图像效果,都采用新型超黑底,超平面直角彩色显象管,并都增加了Y/C分离电路,在亮度通道采用边缘校正,细节校正,动态清晰度控制,扫描速度调制及黑电平扩展等电路。在伴音方面,这些大屏幕彩电基本都是大功率高保真双声道输出,具有环绕立体声,卡拉OK等功能,并具备多路“AV”输入输出,
Imported from overseas single N color TV sets, mostly early 90’s products. Such color TV cheap (34 inches only 4800 yuan), and all adopt new circuits, new technologies, new devices. Especially for large screen color TVs above 25 inches, in order to obtain high-definition, high-resolution image effects, all adopt the new ultra-black bottom, super-plane right angle color picture tube, and have increased Y / C separation circuit, Using edge correction, detail correction, dynamic resolution control, scanning speed modulation and black level expansion circuit. In sound, these large-screen color TV are basically high-power high-fidelity dual-channel output, with surround sound, karaoke OK and other functions, and have multiple “AV” input and output,