Sony XDP-U50D User manual

S ONY. 3-756-842-22 (1)
Digital Pre-Amplifier |
XDP-U50D
Operating Instructions pc:
Before operating the unit, please read this manual thoroughly .
and retain it for future reference. .
Owner’s Record
The model and serial numbers are located on the bottom of the
unit. Record the serial number in the space provide below.
Refer to these numbers whenever you call upon your Sony
dealer regarding this product. ,
Model No. XDP-U50D __ Serial No.
3 ' .
Mode d em ploi page 22
Avant la mise en service de cet appateil, priére de lire .
attentivement ce mode d'emploi que l'on conservera pour toute
référence ultérieure.
@ 1993 bv Sonw Carporation

WARNING
This equipment has been tested and found to
comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules.
. These limits are designed to provide
reasonable protection against harmful
interference in a residential installation. -This
equipment generates, uses, and can radiate
radio frequency energy and, if not Installed and
used In accordance with the instructions, may
cause harmful interference to radio
communications. However, there is no
guarantee that interference will not occur in a
particular installation. If this equipment does
cause harmful intesference to radio or television
reception, which can be determined by tuming
the equipment off and on, the'user is
. encouraged to try to correct the interference by
one or more of the following measures:
~ Reorient or relocate the receiving antenna.
~ Increase the separation between the
« equipment and receiver, -
~ Connect the equipment into an outlet ona
Circuit different from that to which the receiver
Is connected.
— Consult the dealer of an experienced radio/TV
technician for help.
You are cautioned that any changes or
modifications not expressly approved in this
manual could void your authority to operate this
equipment.
The shielded interlace cable recommended in
this manual‘must be used with this equipment
in order to comply with the limits for a digital
device pursuant to Subpart B of Past 15 of FCC
Rules,
Features -
“The XDP-U50D is a digital pre-amplitier
which is compatible with the Sony UNILINK
system. This unit can simulate various fistening
“environments according to your taste and the
different types of music sources. The unit can —
simulate several sound fields depicting different
concert venues. These simulated sound fiek’s
include the “CONCERT HALL’ effect that re-
creates the feeling of a large enclosed space
and the JAZZ CLUB" effoct with the feeling t of
being close to the performers and so on. This
enables you to experience a reproduced sound
that has the same qualities and characteristics
of the original sound source. The unit can be
controlled by a’Sony Master unit which is
equipped with the DSP control function.
* Selection can be made from ten surround
modes (HALL, OPERA, CHURCH etc,).
¢ Optimum."Listening position” can be selected
from five different settings.
¢ DSP file function enables the discs to be
played in the customized DSP modes. .
° LSM (Last Sound Memory) function enables
programs to be played with the preset
Surround menu.
* The cutoff frequency of the sub-woofer can be
adjusted. :
© 8 fs Gver sampling.
© The SCORE (Subliminal Correlation) digital .
filter enables the quantization noise caused in -
the re-quantization process not correlating to
the audio signal, ;
© 18 bit D/A converter.
* Double PLL (Phase Locked Loop) realizes low
fitter.
* DC/DC converter for a stable power supply.
¢ Compatible with the optical digital system.

Table of Content
Precautions ........... boeseeee seeeeeecesees 4
Installation. .......cccecccccccccccecscccceses 5
COnnections...........ccccccccccsccccsccees 8
Connection of the optical cable ............ 6
Combinations of the units to be connected. 8
Power connection leads 2 ........ccceveeeee 19
Specifications ........... ts seesceeeeeerees 3 29
Supplied Mounting Hardware

Precautions
° This unit is designed for negative ground 12 voit DC operation only.
¢ Avoid instalting the unit where:
~ it would be subject to high’ temperatures, such as from direct sunlight or hot air from the
heater
~ it would be exposed to rain or moisture
~ it would be subject to dust or dirt.
* If the unit is placed too close to the car radio or the TV tuner, interference may occur. In
this case, separate the unit from the car radio or TV tuner. ;
« The unit has a digital volume contro! system. Do not turn down the volume of the master
unit too much as doing so may cause the sound quality to deteriorate.
* The output levels of the rear speakers wil) be lower than those of the front speakers In
order to obtain the optimum time alignment effect.
¢ For safety reasons, keep the volume of the master unit at a moderate level so that you
can stilt hear the sound outside your car.
* For connections, refer to the installation/connections manuals supplied to the other units
to be connected as well. .
if you have any questions or problems concerning your unit that are not covered in this
manual, please consult your nearest Sony dealer.
Fuse Replacement.
If the fuse blows, check the power connection and ‘aplate the fuse. if the fuse blows again
atter the replacement, there may be an internal malfunction. In this case, consult your
nearest Sony dealer,
Warning
Use the specified fuse.
Use of a fuse with higher amperage rating may cause serious damage to the unit.

Installation
» Choose the mounting location carefully so that the unit will‘not interfere with the normal
driving functions of the driver.
¢ Mount the unit either under a seat or inside the trunk room.
installing with the supplied screws
Prepare a sound mounting board with enough thickness (more than 14 mm (9/16 in.)) to
install the unit securely.
1
Place the unit directly onto the mounting board and mark the four bolt holes, then drill
the holes (3 mm (1/g in.) dia.).
3mm dia.
2
installing with the supplied Velcro tapes
Before attaching the Velcro tapes, clean the surface where you intend to attach them.

Connections.
* Before making any connections, disconnect the grour~ terminal of the car paney to
avoid short circuits.
* Connect the +12 volt power sunoly lead only after all the other leads have been
connected.
° Be sure to press the reset button of the master unit after all the connections have Saari
completed. .
* if your car Is equipped with a computer system for navigation or some s other purposes, be
sure not to remove the ground wire from the car battery. If you disconnect the wire, the
memory of the computer may be erased. To avoid short circuits when making
connections in such a car, connect the +12 volt power supply lead of the unit only after
all the other leads of this unit have been connected.
Note on the use with an extra power amplifier
This unit has a digital volume control system. If you turn dawn the Volume of the master
unit too much, the output sound may be distorted. To prevent this from happening, turn up
_ the volume of the master unit to a moderate level and (if the power amplifier has a input
levef control) turn down the input level of the power amplifier.
Connection of the optional optical cable (RC-97 etc.)
1
Do not touch the coupler parts.
SC er Ff oT
Protective tubes
Opticat
cable
(to
be
removed)
(not supplied)
Note
When you wish to
_ disconnect the cable,
simply push both sides
of the connector.
Protective cap aaa,
(Remove and retain it for future use.) Hes
Notes on the optical cable
. Observe the following when connecting the cable.
-~ Make sure that the connector is plugged in firmly with the caches on either side of the
connector being fully inserted into the socket.
— Do not force to bend the cable too much so that the bent part (arc) becomes less than
5 cm (2 in.) in radius. {f you do so, sound may not be reproduced.
— Make sure that the cable does not get squeezed or constricted in any way by objects
around it.
— Never jet the coupler parts of the connectors get scratched or become contaminated with dirt.
— When using the optical cable, avoid routing it in places where there could be a
6 considerable rise in temperature.

a ESN a Na Sa eB OO Oh A RW ee Me SS Pea aa Sal ead
Equipments used in the illustrations of the connections examples
RCA pin cord
<}——_—_———-1>_—_.
Optical
cable
Master unil (compatible with the Sony DSP system)
CD changer (equipped with an analog output)
:
. CD changer (equipped with a digita! output)
:
Source selector (compatible with an analog system)
ANALOG
Source selector (compatible with the Sony digital transmission system)
DIGITAL
TV tuner
fico 0 00 O}
fossa
Power
ampiitier
" If you need some extra connecting cables or cords, you can find them in the Sony audio
accessory lineup, For the equipment to be connected to the unit, refer to “Specifications”
(page 20). ;
i

Connections
Combinations of the Units to be conn-:cted
Basic connection
if the master unit to be connected is equipped with a built-in amplifier and the speaker
outputs (XR-U700 etc.}, donot connect the speakers to those outputs.
Alternatively connect the speakers to the speaker terminals ot the optional power amplifier
which shail be connected to this unit.
XDP-U50D Master unit Power amplifier Power amplifier
The use of the sub-woofers is recommended for an optimum time alignment effect.
rages connections
)
CD changer (digital)
{Teo 0 00 Of
TV Tuner
£—*
Source selector
Equalizer
Reference page
+1 The maximum of two-CD changers (analog or digital) can be connected.
#2 The maximum of ten CD changers (analog and/or digital) can be connected to the the unit with
the source selectors {analog and/or digital).
*3 For the connections of the CD changers and TV tuner, refer to the respective connection
examples.

Example A-1 Basic Connection 4.7 :
i
Front speakers
When Romeciing an active sub-wootel.
Rear speakers
> UNILINK IN--
- CONTROL: ..
“LINE OUT =
‘(REAR) *
* supplied to te unit. For the ‘other connecting cables and cords, use the ones supplied to the other units
or the separately sold ones.

Connections
oN
A
ESET
0
aR
a
a
aa
a
SERED
Ene A-2 abs aCD ch eiager (analc-g))
eo
Front speakers
Rear speakers
When connecting only one CO
changer (anatog)
wow nwmemomwcemvown’?
‘UNILINKIN
CONTROL...
“LINE OUT. INK iN
_{REAR) AUDIO -
Stesa+
_* Supplied to the unit. For the other connecting cables and cords, use the ones supplied to the other units
or the separately sold ones.