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随着大屏幕 I~2C 总线彩电的普及与使用年限增加,其故障的分析检查、检修已逐渐成为重点,如果仍按一般非总线彩电的检修思路,就会使检修陷入困境。在检修实践中,笔者发现 I~2C 总线数据完全丢失的故障并不多,一般是因为数据出现偏差所致。这类故障只靠检修电路元器件及稍加调试或改变电平值,是难以排除的。对于一些不属于调整 I~2C 总线数据控制故障,同样也不能通过调整 I~2C 总线数据来排除故障。在改变
As the popularization and service life of large screen I ~ 2C bus TV increase, the analysis, inspection and overhaul of the malfunction have gradually become the key points. If the general non-bus TV repair ideas are still adopted, maintenance will be in trouble. In the overhaul practice, I found that I ~ 2C bus data is completely lost fault is not much, usually due to data deviation. This kind of trouble can not be ruled out only by overhauling the circuit components and slightly adjusting or changing the level value. For some does not belong to the adjustment I ~ 2C bus data control failure, the same can not be adjusted by I ~ 2C bus data to troubleshoot. Changing