1.环形孔面相连,易造成接触不良康佳“T系列”小板是四层结构板:第一层为信号专线和分布大体积元件;第二层和第三层分别为电源专线和大面积地线;第四层为信号专线和贴片小元件。四层之间通过对穿孔连接,第二层和第三层的电源和地线与第一层和第四层之间连接产生了一种隐患,那 1. Loop hole connected to easily lead to poor contact Konka “T series ” small board is a four-story structure board: the first floor for the signal line and the distribution of large-volume components; the second floor and the third floor were the power line and Large area ground; the fourth layer for the signal line and patch small components. Between the four layers through the perforation connection, the second floor and the third floor of the power and ground connection with the first floor and the fourth floor of a hidden danger, that