1. Manufacturer Website: Check the official Pioneer website to see if they offer wiring diagrams for your specific Super Tuner model.
2. Manuals and Documentation: Look for a user manual or service manual that accompanies your Super Tuner. These manuals often include wiring diagrams.
3. Online Document Repositories: Websites like HiFi Engine, Manualsonline, and ManualsLib often hosts user manuals and technical documentation for vintage electronic components. Check these websites to see if they have the wiring diagram you need.
4. Electronics Forums: Visit online forums and communities dedicated to audio equipment or electronics enthusiasts. Members of these forums might have access to or knowledge of where to find wiring diagrams.
5. Contact Pioneer Customer Support: Pioneer may still offer customer support for older products. You can try contacting them to inquire about obtaining a wiring diagram.
Remember that wiring diagrams can be essential for safe and correct handling and repair of electronic components. Always follow safety precautions and seek advice from professionals if you're unsure about handling electrical devices.