🏷️ Basic Information Identification Make: Aiwa Model: FR-A251 Year: Unknown Generation: Unknown 📋 Manual Details Documentation Manual Type: Service Manual / Repair Manual Language: English Page Count: Likely comprehensive, specific number not provided in description Format: PDF Download Purpose: Repair, rebuilding, maintenance, servicing ⚙️ Engine Specifications Internal Combustion Engine Type: N/A (Audio Receiver) Displacement: N/A Power: N/A 🔧 Transmission Drivetrain Type: N/A (Audio Receiver) Gears: N/A 📐 Dimensions Physical Size Length: Unknown Width: Unknown Height: Unknown Weight: Unknown 🔧 Maintenance Routine Care Service Interval: Refer to manual for specific intervals Oil Capacity: N/A (Audio Receiver) 📄 Electrical Power Requirements Power Supply: AC Mains (specific voltage/frequency depends on region) Audio Features Tuner Type: AM/FM Radio Receiver Amplification: Built-in amplifier (specific power output unknown) Connectivity Speaker Outputs: Speaker terminals (likely stereo) Controls Front Panel Controls: Tuning knob, volume control, source selection, etc. (specifics in manual) 📄 Troubleshooting Common Issues Fault Diagnosis: Covered in manual