To use this Roland JX - 3P synthesizer, first connect it to the included correct power supply. When using, adjust the settings to your liking and enjoy creating music. As for the missing cap of the Sequencer Rate fader, be careful when adjusting this fader to avoid any further damage. For maintenance, keep it in a dry and clean place. Wipe it gently with a soft cloth regularly to keep it in good condition. Don't expose it to extreme temperatures or humidity as this could affect its performance.
