This comprehensive service manual provides detailed technical information and instructions for repairing and maintaining the Kenwood KDC-135, KDC-135CR, and KDC-136 car audio systems. The manual covers a wide range of topics, including: * **Detailed component diagrams:** Visual representations of each component's location and function within the system, facilitating easy identification and troubleshooting. * **Troubleshooting guides:** Step-by-step procedures to diagnose and resolve common issues, helping technicians pinpoint problems quickly and efficiently. * **Component specifications:** Technical data for each part, including dimensions, operating ranges, and electrical characteristics, enabling accurate replacement and repair. * **Wiring diagrams:** Clear illustrations of the wiring connections for each model, simplifying installation, modification, and fault finding. * **Repair procedures:** Detailed instructions for performing various repair tasks, ensuring accurate and effective restoration of the audio systems. * **Service tips and techniques:** Valuable advice and best practices from experienced technicians, enhancing repair efficiency and promoting quality workmanship. By utilizing this service manual, technicians can confidently diagnose, repair, and maintain Kenwood KDC-135, KDC-135CR, and KDC-136 car audio systems, ensuring optimal performance and customer satisfaction.

The Kenwood KDC-135/135CR and KDC-136 are car stereos from the esteemed Japanese electronics company, Kenwood. These compact units were designed to bring affordable yet reliable audio experiences to car owners. While specific details about their release date and features are somewhat elusive, the "CR" designation in the KDC-135CR model likely indicates an enhanced version with additional features or cosmetic updates. These stereos were probably geared towards the entry-level market, offering basic functionalities like AM/FM radio reception, cassette playback (in the case of the KDC-135/135CR), and possibly auxiliary input for connecting external devices. Their sleek and compact design would have made them suitable for installation in a variety of vehicles, fitting seamlessly into the dashboards of cars from various years and models. Unfortunately, without specific release dates or detailed specifications for the KDC-135/135CR and KDC-136, it is difficult to provide a more detailed historical background or technical breakdown of these units. However, the fact that Kenwood still produces car stereos today suggests that the KDC-135/135CR and KDC-136 were probably successful in their intended market. The availability of a service manual for these units further underscores their importance, as it indicates that Kenwood intended for these car stereos to be repairable and maintained for a reasonable lifespan. While these specific models are likely discontinued and no longer in production, their legacy potentially lives on in the hands of car enthusiasts who still appreciate and enjoy these older systems.