CJ9009系列金卡键盘维修手册

CJ9009J/K/L/M等是升级换代产品，和原有的产品相比，主要是磁卡机部分采用了软件解码技术，进一步降低了生产成本，同时也保证了磁卡机读磁条的兼容性。9J与9K硬件原理完全相同，只是主板形状不同。-CJ9009 Series Gold keyboard maintenance manual

CJ9009J/K/L/M and other products are upgraded, and existing products, mainly card machine parts using the software decoding technology, further reducing production costs, but also machine-readable magnetic stripe to ensure compatibility . 9J and 9K hardware works exactly the same shape but different motherboard.