遥控系统是比较易损的部位,本文通过两个例子介绍一下遥控电路部分的应急代换。例1 海信TC2167彩电,遥控CPU采用47C837NU444,此集成块损坏后,很难买到。甚至与海信电视机厂家联系都很难及时解决。笔者通过对此机型电路与采用47C837NU402(常用易购型)的电路进行各脚功能对比.电路结构均无明显区别.用尾号为U444上机代换实验、研究发现,只是(39)脚制式识别脚的电平与尾号为U444不同,会出现彩色识别错误现象。在购不 Remote control system is more vulnerable parts, this article describes the emergency control circuit part of the emergency substitution by two examples. Example 1 Hisense TC2167 color TV, remote control CPU using 47C837NU444, this integrated block is damaged, it is difficult to buy. Even contact with Hisense TV manufacturers are difficult to solve in time. The author of this model circuit and the use of 47C837NU402 circuit (commonly used easy-to-buy type) for each pin function comparison. Circuit structure were no significant difference with tail number U444 on behalf of the substitution experiment, the study found that only (39) feet Standard recognition feet level and tail number U444 different, there will be color recognition error. Not in the purchase