在收录机生产中,整机的功能和性能指标,在很大程度上取决于录、放板的质量。目前检查基板质量和故障的方法有两种:一种是“静态”测试;另一种一般称为“功能”或“动态”测试。前者能够检查出插上基板的部分元器件是否超差,焊接点有无短路、开路等,为修理提供方便。而后者是对基板进行逼真的、直观的、性能参数检查、调整,判定故障所在,并对某些元器件参数进行调整,使之达到最佳状态,从而对基板的功能、性能指标最后作出客观的、定量的认定。这是在收录机生产(以至各种机器生产)中不可缺少的步 In the radio production, the whole function and performance indicators, largely depends on the record, put the quality of the board. Currently there are two ways to check the quality and failure of the substrate: one is a “static” test; the other is a commonly known “functional” or “dynamic” test. The former can check out some of the components inserted into the substrate is over tolerance, the welding point is shorted, open, etc., to facilitate the repair. The latter is realistic, intuitive, the performance parameters of the substrate inspection, adjustment, determine the fault where, and some of the parameters of components to adjust, so as to achieve the best condition, so that the function of the substrate, the final target to make an objective The quantitative determination. This is an indispensable step in tape recorders (and even in various machineries)