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CQ-DVR7000U
CQ-DVR7000U
80
81
Specifications
Definition of Terms
Dolby Digital
This is a digital audio compression technology that
was developed by Dolby Labs. This technology
breaks up a music signal into 5.1 channels for
recording and playback: left front, right front, center,
left surround, right surround and subwoofer
(0.1 channel). Because this technology makes it
possible to store a large amount of audio data on a
disc efficiently, it is used to record audio in multiple
languages, in stereo or monaural.
Dolby Surround
This is a system that records a 4-channel signal (left
front, right front, center, monaural surround) in
2 channels, and then uses a Dolby Pro Logic
decoder to decode the resulting signal back into
4 signals for output. The surround channel output is
monaural.
Linear PCM Audio (LPCM)
This is a signal recording format that is used for
music CDs. Music CDs are recorded at 44.1 kHz/
16 bits, DVD video discs are recorded at
44.1 kHz/16 bits to 96 kHz/24 bits.
MPEG
MPEG is an international standard format for the
compression of motion video as defined by the
Moving Picture Experts Group, a working committee
which functions under the auspices of the
International Standardization Organization and
International Electrotechnical Commission.
On some DVD discs, the digital sound is
compressed using this system before it is recorded.
Playback Control (Video CD)
When a video CD package is labeled as “supports
playback control”, etc., the user can display a menu
screen on the TV and interactively access certain
scenes and information.
Sampling Frequency, Number of Quantization Bits
When an analogue signal is converted into a digital
signal, the signal is divided into fixed time intervals
and digitized. This method is called “sampling”. The
sampling frequency indicates how many intervals
1 second is divided into; the number of quantization
bits indicates the size of the data that is used to
represent each interval. The larger these figures are,
the more faithfully the analogue sound can be
reproduced.
Titles and Chapters (DVD Video))
A DVD is divided into several large divisions (titles),
and several smaller divisions (chapters). These
divisions are assigned numbers, allowing the user
to easily specify where he or she wants to start
playback.
Example) DVD video
Tracks (Video CD, Music CD)
Video CDs and music CDs are divided into several
divisions (tracks), each of which is numbered.
Example)
Pan & Scan Screen
This is one method for displaying wide-screen video
on a normal sized (4:3) TV; in this view, the left and
right edges of the screen are cut off.
Letterbox Screen
This is one method for displaying wide-screen video
on a normal sized (4:3) TV; in this view, black bands
appear at the top and bottom of the screen.
Power supply voltage
: 12 V DC,
-
ground
(test voltage: 14.4 V)
Current consumption
: Less than 8.5 A
(during disc
operations at rated
output)
Power output
: 20W
a
4 ch (1 kHz,
1 %, 4
≠
)
Maximum output
: 45 W
a
4 ch
Suitable speaker impedance : 4
≠
Audio input impedance
: 10 k
≠
Audio input sensitivity
: 200 mV
Pre-out output voltage
: 5 Vrms
Pre-out output impedance
: 60
≠
External dimensions
(Main unit)
: 7
za
1
15
/
16
za
6
1
/
8
z
(W
a
H
a
D)
(178
a
50
a
155 mm)
(Power amplifier unit)
: 5
7
/
8
za
1
5
/
8
za
4
5
/
16
z
(W
a
H
a
D)
(150
a
42
a
110 mm)
Weight
(Main unit)
: 3 lbs. 10 oz (1.65
kg
)
(Power amplifier unit)
: 24 oz. (0.64
kg
)
General
Audio Section
Video section
Tuner (Radio) Section
FM tuner section
Reception frequency range : 87.9 MHz
j
107.9 MHz
Usable sensitivity
: 11 dBf (75
≠
)
Total harmonic distortion
(mono)
: 0.3 % (1 kHz)
Auditory compensation S/N ratio
(mono)
: 60 dB
Frequency response
: 20 Hz
j
15 kHz,
d
3 dB
Stereo separation
: 35 dB (1 kHz)
Alternate channel selectivity : 75 dB
50 dB quieting sensitivity
: 15.4 dBf (75
≠
)
AM tuner section
Reception frequency range : 530 kHz
j
1710 kHz
Usable sensitivity
: 28 dB/
¨
V (S/N 20 dB)
Image interference ratio
: 65 dB
Frequency response
(When LARGE is
selected)
: 20 Hz
j
44 kHz (96 kHz
sampling frequency
DVD video only)
20 Hz
j
22 kHz (48 kHz
sampling frequency
DVD video only)
20 Hz
j
20 kHz (CD)
Delay time
Dolby digital
• Center
: 0 ms
j
5.3 ms
• Surround L/R
: 0 ms
j
15.9 ms
Dolby Pro Logic
• Surround L/R
: 0 ms
j
15.9 ms
Distortion
Front L/R (1 kHz, 0 dB, PCM input)
: 0.01 %
Dynamic range
: more than 100 dB
S/N ratio
: more than 100 dB
Pickup-wave length
: 650 nm
Signal format
: NTSC (standard signal
format in Japan, U.S.)
Video output
: 75
≠
, 1 Vp-p
Region No.
: 1 and ALL
Above specifications comply with EIA standards.
The specifications and appearance of this unit are subject to change without notice.
≥
Manufactured under license from Dolby Laboratories.“Dolby”, “Pro Logic” and the double-D symbol are
trademarks of Dolby Laboratories. Confidential unpublished works.
C
1992-1997 Dolby Laboratories, Inc.
All rights reserved.
Chapter 1
Chapter 2 ……
Chapter 1 ……
Title 1
Title 2
Track 1
Track 3
Track 2
……
Track
