Description
Up for auction is a Nakamichi CR-3 3 head stereo cassette deck. The deck is fully serviced and the following repairs have been done: - Cleaned the heads and pinch rollers. - Checked the heads under microscope, they are in excellent condition. - Adjusted the playback and record heads for correct height and azimuth. - De-carbonized the reel and cam motors. - Replaced the back tension and capstan belts, adjusted the motor speed, W&F is 0.045% to 0.055%. - Lubricated the transport mechanism. - Replaced the electrolytic caps using Nichicon Muse non polar and Wima caps in the audio circuit section, United (Nippon) Chemicon caps in the logic circuit and Nichicon FG/FW in the power supply sections. - Replaced the orange PP caps using Wima PP caps. - Increased the value of the +18V power supply filter cap from 11500uF to 13600uF, the +12V from 4700uF to 6800uF and -18V from 470uF to 1000uF. - Increased the value of the four Dolby power supply filter caps from 220uF to 470uF each. - Increased the value of the record amp power supply filter caps from 47uF to 220uF. - Added in parallel with the 10uF electrolytic caps in the audio path 0.47uF Wima film caps. - Cleaned the potentiometers using deoxit D5. - Adjusted the electronics for correct levels and bias using TDK D/SA/MA-X tapes. All the functions are operating as they should be, playback, record, ff, rew, pause, counter, timer, dolby b & c, bias fine, auto repeat. The sound and the stereo image are great, the bass is tight, the vocals are very defined, the high frequencies are crystal clear, both in playback and recording modes. The cassette mechanism runs smoothly. Externally the deck is in very good condition, considering the age. This is a 120V model, S/N 13146, production date 1988. With the deck are included the old parts. All the questions are very welcome. I moved recently in US from Greece, where I was working in Greek Nakamichi service during 90s and I have all the necessary professional equipment (original test tapes, oscilloscope, wow & flutter meter, distortion meter, frequency response meter, CR-7 test unit, 1000ZXL test unit). If you need to service your deck Ill be happy to help you, 7085281523. Check also my other items and my feedback. Thank you for looking.
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