Technics SU-VX720 Service Manual

SU-VX720__
To connect to speakers
One pair of speakers can be connected to the “A” terminais of
this unit and one pair to the 'B” terminals, or only one pair of D-
wired speakers can be connecied to aii terminals.
' To connect main and/or second speakers >
Main (A) speakers
(not included)
(right) +) -) ij (+) (left)
Second (B) speakers
(not included)
@ Load impedance
e When only the “A” or only the ‘“B” terminals are used: 4-16
ohms
*When both the "A" and the "8” terminals are used
simultaneously: 8~ 16 ohms
© To connect bi-wired speakers (not included)
(right)
Note: Connect only bi-wired speakers in this way.
@i Load impedance
When bi-wired speakers are used: 4-16 ohms
@ Bi-wiring
The treble range and the bass range of the speakers are Con-
nected to the speaker terminals of the amplifier by using two
speaker connection cords separately for each.
As a result of making connections in this way, sound can be
reproduced with much greater nuance and detail, with the feel-
ings of air oscillation and deepness of sound provided by an input
source that suppresses reciprocal band-range interference.
(Refer to the operating instructions of the speakers.)
-To connect cords to terminals
' 1 Strip off the outer q
covering, and twist ‘ne ——et > O
center conductor. 10 mm Twit |
{rm}
Turn completely to the
left.
(03)
Insert the wire and turn
completely to the right.
Pull the cord to assure a
proper connection.
Note: Be sure to only connect positive (+) cords to
positive {+} terminals, and negative (—) cords to
negative (—) terminals.
Note:
| To prevent damage to circuitry, never
short-circuit the plus (+) and minus (—}
speaker wires.
To connect the AC power supply cord
(included)
Connect the AC power supply cord (included) after all other
cables and cords are connected.
AC power supply cord:
(included)
Household
AC outlet |
Insertion of Connector
Even when the connector is perfectly
inserted, depending on the type of in-
iet used, the front part of the connec-
tor may jut out as shown in the draw-
ing.
However there is no problem using the
unit.
Approx. 6mm
Appliance inlet
Note:
The configuration of the AC power supply cord differs according
to area.
For (EB) area
$<) Household AC outlet
Fit a suitable plug to the AC power supply cord.
For areas except (EG), (EB), (EO) and (GN)
If the power piug will not fit your socket, use the power piug
adaptor (included).
=~ mi == -
—- SU-VX720
rere baas tae
m@
DISASSEMBLY
INSTRUCTIONS
, “ATTENTION SERVICER”
Some
chassis
components
may
have
sharp
edges.
Be
careful
when
disassembling
and
servicing.
Ref. No.
2
Removal of the front panei ass'y
Removal of the cabinet
Procedure
1-+2
Front panel
assy
&
4] ~” Remote switch
4 controller
1. Remove the remote switch controller.
2. Remove the 5 screws (@~©).
3. Remove the earth plate and angle.
4. Remove the front panel ass’y in the direction of arrow.
1. Remove the 7 screws (Q~@}.
2.
Remove
the
4
screws
(@~@).
(For
EB,
EO
areas)
3. Remove the upper plate. (For EB, EO areas)
& Replacing of the remote switch controller
1. Turn the selector knobs to the arrows.
2. Put the switch slider of switch to end and put in the remote
switch controiler.
m
Removal
of
the
remote
switch
controller
eRemove
the
4
claws.
$102
(REC
SELECTOR)
$103
(PHONO
SELECTOR)
Remote switch WY Slider
Ne se
controller Le Gy
eat fs 1
ye dl “
Rec
selector
a
. knob
Remote switch oF \
controller
Remote switch
controller
Switch
Phono selector
knob
Removal of the remote switch
controller
Remote switch
controller
_ Pull out the 2 knobs.
. Remove the 2 nuts.
_ Remove the 3 screws (@~®).
_ Remove the rec earth spring and angle.
_ Remove the remote switch controller in the direction of arrow.
1. Remove the 1 connector (CP501).
2. Release the cables from code clammper.
3. Remove the 2 screws (@. @).

Technics SU-VX720 Specifications

General

Brand	Technics
Model	SU-VX720
Category	Amplifier
Language	English