🏷️ Basic Information Identification Make: JVC Model: DLA-SX21U / DLA-SX21E Product Type: Projector 📋 Manual Details Document Info Manual Type: Service Manual Format: PDF Download Language: English (implied by content) Availability: Downloadable Content Overview Key Sections: Specifications, Operating Instructions, Safety Precautions, Service Policy, Functions, Installation, Specific Service Instructions, Service Adjustments, Troubleshooting 📄 Product Features General Functions Core Functionality: Projection Installation Installation Guidance: Included Service And Maintenance Service Adjustments: Included Troubleshooting: Included Service Policy Details: Included Technical Information Model Variants: DLA-SX21U, DLA-SX21E Main Difference List: Included Safety Safety Precautions: Included Operating Instructions Operation Guide: Included