This comprehensive service manual provides detailed technical information and repair procedures for the AIWA NSX-D603 and NSX-D606 audio devices. The manual includes detailed diagrams, schematics, component specifications, troubleshooting guides, and step-by-step instructions for common repairs. With its in-depth coverage, this manual is an invaluable resource for technicians, repair professionals, and DIY enthusiasts seeking to understand and repair these audio systems. This service manual offers a complete understanding of the internal workings, allowing for efficient and accurate troubleshooting and repair, ultimately extending the lifespan of these popular audio devices.

The AIWA NSX-D603 and NSX-D606 are not vehicles or machines, but rather audio components, specifically car audio receivers. Produced by the now-defunct Japanese electronics company AIWA, these devices were designed to enhance the in-car listening experience. While the exact year of their release is unspecified, they likely fall within the late 1990s or early 2000s, a time when AIWA was known for its innovative and high-quality car audio systems. The NSX-D603 and NSX-D606 were likely targeted at car enthusiasts seeking advanced features and sound quality. Judging by their model names, they were likely part of AIWA's "NSX" series, which could have included other car audio receivers with varying features and specifications. Unfortunately, without further information about the specific features and functions of the NSX-D603 and NSX-D606, it's difficult to provide a more detailed description of their capabilities. However, we can reasonably assume they featured a combination of standard radio functionalities like AM/FM reception, along with advanced audio capabilities such as CD playback, cassette tape playback, or even MP3 support, depending on the year of their release. The service manual, referenced in the initial information, would likely provide a comprehensive understanding of their internal components, wiring diagrams, troubleshooting guides, and technical specifications. This information would be invaluable to repair technicians or DIY enthusiasts seeking to understand and potentially repair these devices.