🏷️ Basic Information Identification Make: JVC Model: AV-21YMT4 Year: N/A Generation: N/A 📋 Manual Details Manual Info Manual Type: Service Manual Language: English Page Count: 49 Format: PDF Content Overview Included Sections: Precautions, Specific Service Instructions, Disassembly, Adjustment, Troubleshooting Technical Focus Device Type: Colour Television ⚙️ Engine Specifications Power Source Power Supply: AC Mains Internal Components Circuit Board Layout: Detailed Performance Tuning Alignment Procedures: Included 🔧 Transmission Signal Processing Video Processing Modes: N/A (TV Specific) Control Systems Remote Control System: Service Level Information 📐 Dimensions Physical Size Screen Size: 21 inches Cabinet Dimensions: N/A (Service Manual Focus) Weight Unit Weight: N/A (Service Manual Focus) 🔧 Maintenance Troubleshooting Guides Common Faults: Covered Service Procedures Disassembly Steps: Detailed Adjustment Settings Picture Adjustment: Included Safety Precautions Electrical Safety: Emphasized Parts Information Component Identification: N/A (Implied) Service Tools Required Tools: N/A (Implied)