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近年来市场上大量流行I~2C总线数码彩电,I~2C总线彩电发展速度之快令人感到惊讶,这不得不引起广大维修者的关注,从维修角度来说,首要任务就是要正确快速确定所修彩电是否是I~2C总线彩电还是普通遥控彩电?就此谈谈我在维修中是如何快速识别I~2C总线彩电的几点方法,以供同行参考。方法一:从图纸中查看CPU引脚功能有无串行时钟线(SCL)和串行数据线(SDA)端子,并且在该引脚上除接有存储器E~2PROM外,还必须接有视频/色度/扫描单片小信号处理电路。CPU和存储器有SCL和SDA引脚者则为I~2C总线彩电,反之为普通遥控彩电。
In recent years, a large number of popular I ~ 2C bus digital TV market in the market, I ~ 2C bus TV surprisingly fast pace of development, which has caused the concern of the majority of maintenance who from the maintenance point of view, the first task is to correctly and quickly determine Repair the color TV is I ~ 2C bus TV or ordinary remote color TV? In this regard I talked about how to quickly identify the I ~ 2C bus TV several methods for peer reference. Method one: Check the CPU pin function from the drawing to see if there is a serial clock line (SCL) or serial data line (SDA) pin. In addition to the memory E ~ 2PROM connected to this pin, a video / Chroma / scanning monolithic small signal processing circuit. CPU and memory have SCL and SDA pins for I ~ 2C bus color TV, on the contrary for ordinary remote color TV.