机芯：UL12机芯
微处理器芯片：OM8370 
所属机型:TCL TCLAT21A31A，AT2165，AT21289A，NT21228，NT21A11，NT21A21，NT21A31，NT21A41B，NT21A42，NT21A51，NT21B03，NT21A11S，AT21181，NT21181S，AT21281，AT21276，AT21286，AT21211A，AT21266A，AT21189B，AT21289，AT21189B，NT21C81S，AT21211A，NT21A31A，NT21B68S，AT21276，NT21228，NT21A11，NT21A41B，NT21A42，NT21B03，NT21C06S，NT21C41彩电工厂模式√用户模式 
进入方式:先按遥控器右下角的“工厂设定”键，然后在2、3秒内按“静音”键即可。　   
退出方式: 按“显示”即可。