Specifications - Sony DTC-790 Operating Instructions Manual

20
Additional Information
Sub codes writing is not possible.
=> The record-protect hole on the cassette is open.
Slide the record-protect tab to close the hole (see
page 5).
Start ID writing is not possible during recording.
=> The start ID cannot be written within 9 seconds
(18 seconds in long-play mode) after the end of
the previous start ID. Make sure at least 9
seconds (18 seconds in the long-play mode) has
passed after the last start ID and before writing a
new one.
Direct Access does not work.
=> The specified program number does not exist on
the tape. Press START ID RENUMBER to
renumber the program numbers.
=> The program numbers are out of order. Press
START ID RENUMBER to renumber the
program numbers.
The deck begins rewinding the tape during playback.
=> Repeat Play is on.
Press REPEAT on the remote repeatedly to turn
off "REPEAT" or "REPEAT 1" in the display and
cancel Repeat Play.
The tape operation buttons do not function while writing or
erasing a start ID.
=> All buttons do not work during the 9 seconds the
start ID is being written (18 seconds in long-play
mode). Wait until the writing the start ID
finishes before operation.
Absolute time codes writing is not possible.
=> Recording began within a blank section.
Rewind the tape to its beginning, or locate the
end of the recorded portion with End Search
before starting recording.
Tape transport is excessively loud during fast-forwarding or
rewinding.
=> The noise is caused by the cassette and is not a
mechanical problem.
The tape stops suddenly.
=> The cassette is defective or damaged.
Press OPEN/CLOSE & and replace the cassette
with a new one.
When pressing <4 />P or [<i<1/>(>l, the tape stops
momentarily before starting to move.
=> This is normal and is not a mechanical problem.
The deck cannot be operated with the remote (supplied).
=> The battery is weak. Change both batteries.
Specifications
System
Tape Digital audio tape
Recording head Rotary head ©
Standard: 120 minutes
Long-play: 240 minutes
Standard: 8.15 mm/s
Long-play: 4.075 mm/s
Standard: 2,000 rpm
Long-play: 1,000 rpm
13.6 pm (20.4 um)
48 kHz, 44.1 kHz, 32 kHz
2 channels, stereo
Standard: 16-bit linear
Long-play: 12-bit non-linear
Standard: 2-22,000 Hz (+0.5 dB)
Long-play: 2-14,500 Hz (+0.5dB)
90 dB or more (Standard and long-play
mode)
Recording time
(when using DT-120)
Tape speed
Drum rotation
Track pitch
Sampling frequency
Number of channels
D/A conversion
(quantization)
Frequency response
Signal-to-noise ratio
Dynamic range 90 dB or more (Standard and long-play
mode)
Total harmonic distortion Standard: 0.005% or less (1 kHz)
Long-play: 0.008% or less (1 kHz)
Below measurable limit (+0.001%
W.PEAK)
Wow and flutter
Input Connectors
Connector Jack type Input impedance _ Rated input level
ANALOG Phono jacks 47 kilohms —4 dBs
(LINE)
DIGITAL Optical = =
OPTICAL connector
DIGITAL Phono jack 75 ohms 0.5 Vp-p
COAXIAL
Output Connectors
Connector Jack type Output Rated Load
impedance output impedance
level
ANALOG Phono 4700ohms -4dBs_ 10 kilohms
(LINE) jacks or more
DIGITAL Optical = (wavelength —
OPTICAL connector 660nm)
HEADPHONES Stereo 100 ohms 12mW 32 ohms
phone-plug
jack