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TAPE COUNTER AND MEMORY STOP 

1) Operation of the Real Time Tape Counter and the Linear Tape Counter 

•  Real Time Tape Counter 

The time of the tape traveling at a constant speed is indicated in "M" (minutes)  
and "S" (seconds).  
A microcomputer measures and displays the time with high precision. 
Display example: 32: 10: 32 minutes, 10 seconds.  

•  Linear Tape Counter 

The tape travel time is indicated with a 4-digit value. The first two digits indicate the 
minutes, the last two digits the seconds. 
Display example: 3456 34 minutes, 56 seconds. 

(1)  Press the RESET button to reset the counter to:      00: 00: 

"M" and "S" are not displayed when "VARIABLE" is displayed. They are also not 
displayed when "FIX" is displayed during the fast-forward, rewind, music search 
operations or when the STOP button has been pressed during an operation. 

(2)  Select "FIX" using the TAPE SPEED button. "FIX" appears on the display, the counter 

is set to the real time mode, and "M" (minutes) and "S" (seconds) appear. 

 

 

 

 

The counter remains in the real time mode when the play, record play, pause, record 
pause or stop mode is selected at this time.  

(3)   The counter automatically switches to the linear mode if the fast forward or rewind 

mode is set from any of the modes in (2)-

 or if the "VARIABLE" mode is set during 

playback. 

(4)  If the music search mode is selected, the counter automatically switches to the linear 

mode, then switches back to the real time mode once playback begins after the music 
search operation. 

DOLBY NOISE REDUCTION SYSTEM 
 

  The Dolby noise reduction system substantially reduces the tape background noise 

(hiss) inherent in the cassette medium. 

  Tape background noise consists primarily of high frequency information, which is 

particularly annoying during soft passages. The Dolby NR system increases the level of 
low volume mid and high frequency signal during recording and reduces the level of 
these signals by an identical amount during playback. As a result, the playback signal is 
identical to the original source signal, but the level of background noise generated by the 
tape is greatly reduced. 

 
 
DOLBY HX-PRO HEADROOM EXTENSION SYSTEM 
 

This deck is equipped with the Dolby HX-PRO headroom extension system. Since the system 
functions automatically during recording, no switching operation or adjustment is required. 
The system is effective with any type of Normal, Cr02 and Metal tape. 
The Dolby HX-PRO headroom extension system functions during recording to lift up the 
saturation level in the treble range. Therefore, most of the treble range components 
distorted or lost during recording on conventional cassette decks are more faithfully recorded 
on the new cassette deck. 

•  

Note 

The method of measuring the time and the precision differ for the real time tape 
counter (fixed speed travel) and the linear tape counter. The tape may not be 
returned to the precise position when the fast-forward, rewind, music search or 
memory rewind operations are used, but this is not a malfunction. 
Use the real time tape counter to measure the accumulated time at constant 
speed without counting the time in which the pause, stop and record pause 
modes are set. 

(5)   The counter is reset to " 00 00 " when the EJECT button is pressed. 

 
2)  Operation of MEMORY STOP 

(1) During recording or playback operations, MEMORY STOP can be used to locate a 

particular point on the tape. At the desired point, reset the counter to" 00.00. 
".With the MEMORY STOP button in the "ON" position, the deck will stop at the "00 
00 " point (actually -00 02 " and "00 00 ") during REWIND operations. 

(2) The MEMORY indication will light when this function is activated.  
(3) Notes: 

When the power is turned "OFF", this function is automatically deactivated. 

The MEMORY STOP is accurate to -5 on the counter, and will stop between "-00 02 
" and "00 00 ". 
The MEMORY STOP is released by pressing the EJECT button. 

3) Display 

Back-up 

(1) The DOLBY NR, MPX FILTER, COUNTER VALUE, TAPE SPEED and TAPE SIZE 

functions are protected for approximately one month by a memory back-up. 
Once the back-up period is up, the DOLBY NR and MPX FILTER settings are set to 
off, the TAPE SIZE setting is reset to "C-90", the Tape Speed setting is set to FIX, 
and the counter is reset to ”00 00”

  The operating principle of Dolby C NR is similar to that of Dolby B NR except for the 

encoding /decoding response curves. The noise reduction effect obtained with Dolby C 
NR is up to 20 dB, compared to 10 dB with Dolby B NR. In addition, Dolby C NR uses 
an anti-saturation network and spectral skewing circuitry for a significant improvement 
in the dynamic range of the mid- to high-frequencies. 

 

The S-type provides a maximum noise reduction effect of 24 dB in the high frequencies 
and 10 dB in the low frequencies, and expands the dynamic range over a wide 
frequency range. 

Features of the Dolby HX-PRO Headroom Extension System 

(1) 

Performance of Normal and Cr02 tapes can be upgraded closer to that 

 

of Metal tapes. 

(2)   The dynamic range in the treble is improved significantly. 
(3)   Since no decoding in playback is necessary, the improvement can be obviously heard 

on any hi-fi playback system including portable components and car systems. 

(4) 

The system functions whether the Dolby B/C/S NR is engaged or not. 

13 

Summary of Contents for DN-790R

Page 1: ...STEREO CASSETTE TAPE DECK DN 790R OPERATING INSTRUCTIONS...

Page 2: ...ontact your DENON DEALER 3 Do not place anything inside Do not place metal objects or spill liquid inside the cassette tape deck Electric shock or malfunction may result Please record and retain the M...

Page 3: ...FRONT PANEL DISPLAY REAR PANEL 3...

Page 4: ...ot likely to be walked on or pinched by items placed upon or against them paying particular attention to cords at plugs convenience receptacles and the point where they exit from the appliance 14 Clea...

Page 5: ...g the cord Keep the set free from moisture water and dust Unplug the power cord when not using the set for long periods of time For sets with ventilation holes Do not obstruct the ventilation holes Do...

Page 6: ...it of the ultimate in sound quality The high quality performance and easy operation are certain to provide you with many hours of outstanding listening pleasure TABLE OF CONTENTS Please check to make...

Page 7: ...remote control box can be connected to this unit No remote control box is included For remote control the user should build a remote control box referring to the schematic diagram remote control box s...

Page 8: ...er point automatically when this button is pressed in 17 Tape transport controls TAPE SIZE button You can know accurate elapsed time of the tape by adjusting the TAPE SIZE button to the tape size used...

Page 9: ...XLR 3 31 Connected them to the balanced output terminals on an amplifier or console b Pin layout Pin 1 Common Pin 2 Cold Pin 3 Hot c Applicable connector XLR 3 12C or the equivalent NOTE Do not short...

Page 10: ...dings MPX FILTER Button 13 it ON for the DOLBY NR recording of FM broadcasts The MPX FILTER indicator 24 will light up PLAY Push the PLAY button The PLAY indicator will light up When playback is finis...

Page 11: ...ss the CLEAR button Turn off the power The recording characteristics are reset to the standard values Note To achieve the optimum recording characteristics we recommend always tuning each tape before...

Page 12: ...utomatically create about 5 seconds of non recorded part and stay in the standby state MUSIC SEARCH SYSTEM This device is a convenient system which detects the non recorded part of more than 4 seconds...

Page 13: ...ost of the treble range components distorted or lost during recording on conventional cassette decks are more faithfully recorded on the new cassette deck Note The method of measuring the time and the...

Page 14: ...length of the cable the more susceptible the system will be to the effects of external noise Keep cable lengths to 2 m or less Do not locate equipment that produces electrical noise in the vicinity o...

Page 15: ...on the heads clean the heads more often to enjoy optimum sound Cleaning the Pinchroller and the Capstan If the pinchroller or the capstan accumulate dust tape transport may become unstable resulting f...

Page 16: ...oved If the power switch is turned off in either the Turn the power switch ON again and then recording or playback mode and the unit is press the stop button stopped there may be case when the Then in...

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