The resistance of the switching board is 103,the one foot of the chip is at the white point,and the gap of the switching board should be upward and the bottom be aligned. ![](https://box.kancloud.cn/4a6c64131b318ab6e872c712183eea4d_262x375.png) Reading ![](https://box.kancloud.cn/c40bfaf7498496cf9afaaf6e353e9be2_483x202.png) Writing ![](https://box.kancloud.cn/58c8cb53ca351069657f047ba2f2de8d_512x209.png)