Sharp Optonica RX-1 User Manual
OPTONICA
RX-1
PCM Digital Audio Adaptor
The RX-1
unveils a completely new audio era with a wide range
of
features and unique, innovative ideas.
A
Dream
Unit
for Adventurous
Audiophiles
Sharp's advanced digital technology
is
backed
up by
innovative
semiconductor technology. This
has
been combined with
its
sophisticated audio system expertise, well demonstrated
in the
OPTONICA series.
Now, OPTONICA
is
announcing
a new
audio
era
with
the in-
troduction
of a
dream unit
- PCM
digital audio adaptor RX-1.
Throughout
its
continuous, relentless efforts
in
this field,
OPTONICA
has
developed
the
versatile, compact
PCM
adaptor
which
can
easily
be
connected
to any
home video. Featuring
its impressive breakthrough
in
drop-out proofing capability,
the
RX-1 is the
ideal solution
to
"analog" audio barriers that
critical audiophiles have long been confronted with.
The
PCM
(Pulse Code Modulation) system sets audio technol-
ogy
on a
completely
new
course, well beyond conventional
analog audio.
It is the
system which converts analog signals
into digital signals
for
storing
the
data
on the
videotape. First,
sound signals
are
microscopically divided
and
then encoded
into either 1 (presence)
or 0
(absence)
and
recorded onto
videotape. This eliminates noise which could very often
be
mixed with
the
music signals
at the
time
of
recording.
Adaptable
to Any
Type
of
Video
Cassette
Recorder
Having adopted Optimum Control function,
the
RX-1 permits
you
to
search
for the
ideal matching point, best suited
to any
type
of
video cassette recorder,
VHS or
Beta. This means that
the ingenious unit promises
you
spectacular sound quality
anytime, anywhere.
The adaptability level
is
conveniently displayed
on LED
indi-
cators
for
your quick, accurate reference.
OPTONICA's
Unique
Drop-Out
Proof
System
with
99.995%
Perfection
OPTONICA,
by
fully utilizing a sophisticated memory func-
tion,
has
developed a superb drop-out system
for
dutiful,
accurate reproduction
of the
original sound. Necessary data
for drop-out proofing
are
input
at the
time
of
recording. Then
at
the
time
of
plaving, correction
is
done
to
near perfection.
The result
is a
stunning 99.995% correction capability.
The way to record or reproduce on PCM
Digital output
Recording
Audio
z_
Video cassette PCM unit
recorder
° 006 O O
*<§
O
000 O T * 00
Amplifier- Speakers
Blocks
of the PCM
unit
Clock
generator
TV
generator
Sample
and hold
A/D-
converter
Redundancy
Recording
-|
Video cassette recorder
[*
H
PLL
Data
Error
check
Memories
Error
correction
D/A-
converter
Reproduction
Compact
and
Light, Culmination
of
Modern Design-
ing
Unlike the general concept that PCM adaptors are bulky and
heavy, OPTONICA's RX-1 is as compact as a stereo amplifier,
weighing only 15.5 kg. Sharp's innovative semiconductor
technology has changed the whole concept.
Stunning
90dB Dynamic
Range
Digital recording system means very low distortion and noise,
resulting in a stunning 90dB dynamic range, thanks to 14-bit
quantizing.
Extra High Fidelity Recording
and
Playback
Because the audio signals are converted into pulse codes for
recording and playback, the sound signals are not affected by
rotary mechanisms characteristic to analog systems. The result
is an extremely high fidelity in recording and playback,
beyond any possibilities of the analog system.
Accurate,
Easy-to-Read
LED
Level Meter
28 LED level meter on one channel permits precise recording
levels.
Easy
to
Connect
to
Various Kinds
of
Equipment
In addition to PIN jacks, the unit includes cannon connectors
and M type connecting jacks, for easy connection of the RX-1
with various kinds of equipment.
Special Control
for
Precise Adaptability
of PCM
Adaptor
to
Videotape.
Jack
for
Digital Direct Dubbing.
Other features
* Mike mixing. * Gold plated PIN iacks.
* Headphone jack.
Recording
Recorded
tape
[£>
oiooi io] C)
Correction
Audio signals
Playback waveform
of 10 kHz
Cassette
tape deck Open reel tape deck
PCM
system
Playback waveform of silent
portion
(50
dB or
300
times magnification on the scope)
Cassette
tape deck Open reel tape deck PCM system
Harmonic Distortion
Cassette
tape deck
PCM
system
Wow
and flutter
Cassette
tape deck Open reel tape deck
PCM
system
Microphones
PCM unit
Video cassette recorder
Reproduction
Digital output
Audio output
Low pass
filter
Memories
Low pass
filter
Outputs
I
nput
Sample
and hold
Digital
Video
signal
Data
formats
Signals
Reproduction
VCR
Recorded
tape
Reproduced
wave
Data
(Error)
Memories
D/A
Open
reel tape deck
Specifications
RX-1
Power Source:
Dimensions:
Weight:
Recording format:
Transmission channels:
Sampling frequency:
Number of
quantizing bit:
Data
transmission rate:
Error correction
capability:
Crosstalk:
Level variation:
AC220V, 50Hz [AC 100V, 50/60Hz]*
430(W)x 141 (H)x 360(D) mm
15.5 kg
PCM recording in PAL standard
TV signals [NTSC standard]
2 channels
44.100 kHz [44.056 kHz]
14-bit
2.625 Mbps [2.643 Mbps]
99.995%
More than 60dB (1 kHz, 10 kHz)
Below measurability
o
Power Switch
©
PCM Tape Indicator
LED Level Indicator
©
Line Output Level Control
©
Headphone J ack
©
Anti-Digital Dubbing Indicator
MIC Input Jack
©
Line Input Level Control
©
Power Indicator
©
Error Correction Signal
©
Mode (Record/Play) Switch
©
MIC Input Level Control
o
Playback Indicator
Indicators
Error Monitor Switch
©
Optimum Control
©
Record Indicator
©
Optimum Indicators
Headphone (Volume) Control
Bezugsquellennachweis
SHARP
ELECTRONICS
(EUROPE)
GmbH.
SonninstraBe
3, 2000
Hamburg
1, F.R.
Germany
Tel:
(040) 28511
Telex:
2161867 HEEG D
Telegram:
SHARPEUROPA HAMBURG
SHARP
CORPORATION
OSAKA,
JAPAN
CABLE ADDRESS: LABOMET OSAKA
TELEX: 63428 LABOMET A-D
'79 ©SHARP CORP. (8F2E) Printed in Japan
Wow & flutter: Below measurability
Harmonic distortion: 0.03% (1 kHz)
Dynamic range: 90 dB
Reproducing frequency
range:
DC - 20 kHz
Others:
Line input jack
Line output jack
Headphone jack
Video input/output jack
'
Digital signal input/output jack
Dubbing jack
External synchronized input/out-
put jack
*
Note: Information in [ j parentheses is for NTSC
standard.
The manufacturer reserves the right to vary specifica-
tions,
design, or use alternative materials as my be
deemed necessary or desirable at any time, any such
change or variation being of a kind as not to reduce
quality, performance or appearance.
MODEL
RX-1H
OPTONICA
PCM
DIGITAL AUDIO
ADAPTOR
Contents 1
Features . . . . . . 2
Caution 2
Controls and Functions 3 — 4
Playback . .5
Optimum Control .6
Recording 6
Dubbing ....x. ..................... 7
Connections . 8 - 13
Specifications. 14
Troubleshooting 15
Note:
Audio-visual material may consist of copyrighted works which must not recorded
without the authority of the owner of the copyright.
Please refer to relevant law in your country.
OPTONICA
PCM DIGITAL AUDIO ADAPTOR
RX-1 H
CONTENTS
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