Using the Yamaha LS9 - 32 digital mixing console is easy. First, connect it to your audio sources using the appropriate cables. Then, turn on the power supply included with the console. You can start adjusting the volume, tone, and other settings of each input channel according to your needs. When it comes to maintenance, keep the console in a clean and dry place. Regularly dust it off to prevent any build - up that might affect its performance. Also, make sure to update the firmware to the latest version from time to time to enjoy the best features. Be careful when handling the console to avoid any physical damage. Don't place heavy objects on it or expose it to extreme temperatures.