This is an original service manual for the Nakamichi SR-4/SR-4A stereo receiver. It contains detailed instructions for maintenance and repair of this vintage audio equipment from a trusted brand. Use this manual to keep your Nakamichi receiver in top-notch condition and ensure that it delivers high-quality sound for years to come. With this manual, you'll be able to troubleshoot and fix any issues that may arise with your Nakamichi SR-4/SR-4A stereo receiver. It's a must-have for any vintage audio enthusiast or collector. Don't miss out on the opportunity to own this rare and valuable piece of Nakamichi history. Buy it now and add it to your collection!