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问一:选购“背投”彩电时应了解和注意哪些问题? 答1.了解该背投彩电是属于第几代产品以长虹“背投”彩电为例,它已出三、四代产品:第一代背投叫做普通背投,采用长虹CH—8机芯,场频为50 Hz隔行扫描技术,主要机型有:43PT28A、51PT18、51PT18B、43PT18等;第二代背投叫做“精显”背投,采用长虹DT—6机芯,场频为“100 Hz隔行扫描”或“50 Hz逐行扫描”技术,两者不能同时实现(在
Ask a: buy “rear projection” color TV should understand and pay attention to what issues? Answer 1. Understand the rear projection color TV is the first few generations of products to Changhong “rear projection” TV, for example, it has three or four generations of products : The first generation of rear projection is called ordinary rear projection, the use Changhong CH-8 movement, field frequency of 50 Hz interlaced scanning technology, the main models are: 43PT28A, 51PT18, 51PT18B, 43PT18, etc .; second-generation rear projection called “fine Significant ”rear projection, with Changhong DT-6 movement, field frequency of“ 100 Hz interlaced ”or“ 50 Hz progressive scan ”technology, the two can not be achieved at the same time