Using your Charvel Pro - Mod San Dimas Bass PJ IV is a breeze. First, make sure it's properly tuned using the Charvel® Open - Gear tuning machines. You can adjust the sound by playing around with the DiMarzio® pickups at the bridge and middle positions.
When handling the guitar, keep it away from extreme temperatures and humidity. Don't leave it in a hot car or a damp basement.
For maintenance, wipe down the body with a soft, dry cloth after each use to keep the satin finish looking great. Clean the fretboard occasionally with a fretboard cleaner. Replace the nickel - plated steel strings regularly, about every few months depending on how often you play. This will keep your bass sounding its best and ensure smooth playability.