681ZX

 Nakamichi 681ZX       
         
 
 
 
  Service Manual
  User Manual
Release year 1980-1982     Average price  1600$     Catalogue
Display Head Configuration        
Digit Digital Counter 2 Head Design    
Digital Peak-Reading Meters 3 Head Design  
Mechanical Counter   Seperate Record and Playback Heads  
Track Indicator   4 Track / 2 Channel

     
Linear Tape Counter      
    Tape    
Connectivity Chrome Tape Capability  
Headphones Normal Tape Capability  

 
RCA Input/Output Metal Tape Capability  
Wired Remote Control Auto Tape Type Selection    
Amp out Manual Tape Type Selection  
       
Noise Reduction Calibration    
Dolby-B Noise Reduction 15kHz Test Tone  
Dolby-C Noise Reduction 400Hz Test Tone  
Dolby-S Noise Reduction Auto Playback Azimuth Correction      
DBX Noise Reduction Manual Bias Calibration  
 
Double Dolby NR Circuits

Manual Level Calibration  
MPX Filter Auto Bias Calibration    
Subsonic Filter Auto Level Calibration      
Dolby HX Pro  

       
      Indicators    
Transport     Record Indicator  
Pressure Pad Lifter   Illuminated Cassette Compartment      
Dual-Capstan Transport   Chrome Tape  
Auto Reverse     Metal Tape  
Belt Drive (Capstan)   Normal Tape  
Slack-Tape Takeup   Fader Down      
2-Speed Cueing   Fader Up      
Mechanical Tape Loading              
    Speed        
Auto Shutoff   4.76 cm/s      
Double Direct Drive (Capstan)     9.52 cm/s        
Idler Drive (Reel)            
Multi Motor Mechanism            
Belt Drive (Azimuth Adjustment)            
Belt Drive (Mechanism)