Using your Fender Jim Adkins JA - 90 Telecaster Thinline is a breeze. Just plug it into an amplifier and start strumming. For the best sound, adjust the amplifier settings based on your playing style. When you're done playing, always unplug the guitar from the amplifier to avoid any electrical issues. To keep your guitar in top condition, clean it regularly with a soft, dry cloth. Wipe down the strings after each use to prevent corrosion. Also, store it in a proper guitar case to protect it from scratches and bumps. If you need to adjust the bridge or the tuning machines, it's a good idea to consult a professional guitar technician.