A block diagram is a diagram of a system where the principal parts or functions are represented by blocks connected by lines that shows the relationships of the blocks. A BTC-9110 keyboard has 12 multimedia buttons with a 104-key layout and a number of shortcut keys, including internet, email, and multimedia controls. In the BTC-9110 keyboard, there is a UMC 6868 H063 Keyboard controller, connected with LED Display, key matrix, keyboard cable to host PC, and several multimedia function keys. Instead of creating a BTC-9110 keyboard block diagram from scratch, try using EdrawMax’s pre-built templates for the block diagram that can make the entire designing process extremely effective.