Technics SU-V90D Service Manual

m CONNECTIONS
Placement with other
equipment
If this unit is to be placed on top of a compo-
nent that has a lesser depth dimension, be
sure to first change the location of the rear
“feet” of this unit, as described below.
(1) Remove the screws from the 4 feet of
this unit, and then remove the 4
insulators.
Insulator
Rearfeet
4
t
=
ry
[ Front feet
ae |
@ Re-install the front feet in their former
positions, and install the rear feet in the
positions shown in the illustration. (Be
sure to fit the projections into the holes
correctly before .tightening the 4
screws).
Note:
If the feet are later re-installed at their
original locations, be sure to use the
insulators in the way that they were
originally installed.
Connections to analog terminals
Make
connections
to
each
component
in
the
system
by
using
stereo
connection
cables
(option).
Tuner (option)
<=
(GND)(A)
(L)
;
To
ground
i"
_—
0
output
terminals
terminal
Compact
disc
player
(option
I
z
=
Ls
a
a
Ground
wire
(ae
a
(option)
EE
an
OG
Ee
To output terminals
Video disc player (audio only con-
nectable) (option)
Second tape deck (option) or digital
audio tape deck (DAT) (option)
To input terminais
\
z { 7 |S
A { | Colic [RES
5 [Ss Sen 000
“POWER AMP
DIRECT” terminals
The sounds from a component
connected to this terminals can-
not be recorded.
Compact disc player (option)
(R)
(L)
To output terminals
Tape deck 1 (option)
To input (“LINE IN”) terminals
aj [ma] a
S880
= LOR
To
output
(“LINE
OUT”)
tefminals
co
co
To output
terminals
COAXIAL
OPTICAL
DIGITAL INPUT
: Coa
Stereo connection (opt
Av OR
oO
ReneRERORE 7
cables (option) or
Optical-fiber cable (option)
Digital audio tape deck (DA
This
unit
If
connections
are
made
to
this
unit
from
a
“DIGITAL
OUT”
—
(“OPTICAL”
or
“COAXIAL"”)
terminal
of
the
digital
audio
tape
A
deck
and,
at
the
same
time,
from
its
“ANALOG”
(“LINE
IN’’
and
“LINE OUT”) terminals, make the connection from the
“ANALOG” terminals of the DAT deck to the “TAPE 2/DAT” ter-
minals of this unit.
—
If
the
“ANALOG”
terminals
of
the
DAT
deck
are
connected
to
xial
cable
the
“TAPE
1”
terminals
of
this
unit,
a
“loop”
may
occur
of
the
ion)
digital
signals
and
the
analog
signals.
eSounds
from
the
component
connected
to the
“DIGITAL
INPUT” terminals of this unit can be recorded only by the tape
deck connected to the “TAPE 1” terminals.
(Refer to “Recording” on page 10.)
For detailed information concerning DAT recording, refer to the
operating instructions of the DAT deck.
Renee
T) (option)
[SU-V90D
Note:
Careful
note
should
be
taken
of
the
following
points.
If
these
points
are
not
heeded,
a
maifunction
of
the
unit’s
operation
could
occur.
1.
Only
analog-type
components
should
be
connected
to
the
analog
input
terminals.
2.
Only
digital-type
components
should
be
connected
to
the
digital
input
terminals.
3.
Optical-fiber
cables
must
absolutely
never
be
bent.
Connections
to
“DIGITAL
INPUT”
terminals
This terminal can be used for the connection
of a compact disc player equipped with a
“DIGITAL” terminal or a digital audio tape
deck (DAT) used for playback only, etc.
Compact disc player (option)
== = =] To “COAXIAL
(ie is]
cE
7
“CTE
CL
:
Ly
OUT”
terminal
Coaxial cable od
= ki T {JB
This terminal can be used for the connection
of a compact disc player equipped with a
“DIGITAL” terminal or a digital audio tape
deck (DAT) used for playback only, etc.
Digital audio tape deck (DAT) (option)
pr Ss | F=
°
To “OPTICAL OUT” terminal
Hi About the “COAXIAL”
terminal
This terminal is a 75-ohm coaxial terminal;
using a toroidal pulse transformer, it func-
tions to provide electrical oscillation bet-
ween components, thereby preventing
signal deterioration resulting from noise
generated within the ground loop, etc.
@ About the “OPTICAL”
terminal
This terminal is an optical-connector ter-
minal; because electric signals are con-
verted to optical signals for transmission,
there is no adverse effect upon the signals
as a result of externally generated elec-
trical noise, thus making possible the
transmission of digital audio signals of
extremely high quality.
Optical-fiber cable (option)
A
dust-protection
cap
is
used
to
cover
and
protect
the
“OPTICAL”
terminal.
Remove
this
cap
only
when
the
“OPTICAL”
terminal
is
to
be
used.
When attaching
the cap, be sure
that it fits
correctly.
L = =’)
Dust-protection cap
Note:
Be sure to use the dust-protection cap to
again cover the “OPTICAL” terminal when
it is not being used.
This cover serves to prevent the entry of
dust, etc. into the terminal, because such
foreign material can cause incorrect
operation.
“SPEAKERS” terminals
MiLoad impedance:
e When only the “MAIN” or only the
“REMOTE"terminals are used: 4—16
ohms
¢ When both the “MAIN and the
"REMOTE" terminals are used
simultaneously: 8— 16 ohms
WiConnection of speaker wires
@ Strip off the outer covering, and twist
the center conductor.
(@® Turn 5~6 times.
@) Insert wire and tighten screw
completely.
0 — 2) 3) _—-
— :
15 mm
nd (19/32”) =
—--
Twist
Notes:
1. To prevent damage to
circuitry, never short-
circuit plus (+) and
minus (—) speaker
terminals.
. Be sure to only connect positive (+)
cords to positive (+) terminals, and
negative (—) cords to negative
(—)terminals.
(right) 23 left)
Remote speaker systems (option)
AC power supply cord
(Taxed ivret-xe))
e For United Kingdom and sorte areas, the
power cord is directly attached to the unit.
¢ Fit a suitable plug to the AC power supply
cord.
¢ Configuration of AC power supply cord dif-
fers according to area.
H Ousehold AC
outlet

Technics SU-V90D Specifications

General

Brand	Technics
Model	SU-V90D
Category	Amplifier
Language	English