🏷️ Basic Information Identification Make: JVC Model: AV-21QT4SJ Year: N/A Generation: N/A 📋 Manual Details General Manual Type: Service Manual Language: English Page Count: 49 Format: PDF Content Covered Topics: • Precaution • Specific Service Instructions • Disassembly • Adjustment • Troubleshooting 📄 Technical Features Display Display Type: Colour TV Screen Size: 21 inches Electronics Main Processor: N/A Power Supply Type: Internal Connectivity Input Ports: N/A Output Ports: N/A Audio Speaker Type: Internal Audio Output Power: N/A 📄 Service Information Troubleshooting Common Issues Covered: Yes Adjustment Adjustment Procedures: Yes Disassembly Disassembly Guides: Yes Precautions Safety Precautions: Yes Instructions Specific Service Notes: Yes 📄 Product Category Classification Product Type: Television Product Subtype: Colour Television