说明：  //=== === === === === === LED键盘模组电路原理图及PCB图 包括电路原理图及PCB图，注意在DDB格式的文档里包含了电路原理图和PCB图。另外，PDF格式的只有电路原理图。 //========================================================= //********************************************************* LED键盘模组说明书 //********************************************************* LED键盘模组自检程序
(//=== === === === === === LED keyboard module and the PCB circuit schematic diagram including the circuit schematics and the PCB map, the attention in the DDB format document contains the circuit schematic diagram and PCB Fig. In addition, PDF format only circuit schematic. //================================================ =========//********************************************************* LED keyboard module specification //********************************************************* LED keyboard module self-test procedures)