论文部分内容阅读
彩电的问世,给人们的生活带来了无限的乐趣。随着人民生活的普遍提高,彩电已“飞入寻常百姓家”。作为耐用的大宗电器,国产彩电理论上平均无故障工作时间为8万个小时,但实际上,一台彩电大多只能使用4万——5万个小时;保养得好的彩电充其量也只有6万多个小时的寿命。究其原因,一是内部元件质量问题,二则是由于电力供应不正常,电源电压不稳定引发多种故障所致。随着我国电视机制造水平的提高,国产彩电性能日趋先进。而我国大部分地区电力供应能力却无法迅
The advent of color TVs has brought infinite joy to people’s lives. With the general improvement of people’s lives, color TVs have “fly into the homes of ordinary people”. As a durable and bulky electrical appliance, the average color-to-silent TV work time in China is 80,000 hours in theory. However, in fact, most color TVs can only use 40,000-50,000 hours; a well-maintained color TV can be only 6 at best. More than 10,000 hours of life. The reasons are as follows: First, the quality of internal components, and secondly, due to the abnormal power supply, the instability of the power supply voltage causes multiple failures. With the improvement of the level of television production in China, the performance of domestic color TVs has become increasingly advanced. However, the power supply capacity in most areas of our country is not fast