🏷️ Basic Information Identification Make: Aiwa Model: TP-VS640 Year: Not Specified Generation: Not Specified 📋 Manual Details Documentation Manual Type: Service Manual Language: English Page Count: Not Specified Format: PDF Download Availability: Downloadable Purpose: Repair, Servicing, Rebuilding, Maintenance ⚙️ Engine Specifications Internal Components Engine Type: Cassette Recorder Mechanism Displacement: Not Applicable Power: Not Applicable 🔧 Transmission Drive System Type: Belt Drive Gears: Not Applicable 📐 Dimensions Physical Size Length: Not Specified Width: Not Specified Height: Not Specified Weight: Not Specified 🔧 Maintenance Routine Care Service Interval: As Needed Oil Capacity: Not Applicable 📄 Technical Features Audio Playback Cassette Type: Standard Cassette Recording Modes: Not Specified Playback Speed: Standard Power Requirements Power Source: AC Mains / Batteries (Likely) Electrical Voltage: Not Specified Frequency: Not Specified Connectivity Audio Output: Headphone Jack (Likely) Microphone Input: Yes (Likely) Controls Transport Buttons: Play, Record, Stop, Fast Forward, Rewind, Pause Display Counter: Mechanical Tape Counter (Likely)