Technics SU-V660 User manual

SO ee = me er ner em en oe >,
Technics
Stereo
Integrated
Amplifier
SU-V660
OPERATING
INSTRUCTIONS
Notes:
« Specifications differ according to the area code.
«The
"EB"
area
code,
for
example,
indicates
United
Kingdom
specifications.
«The
“EB”
indication
is
shown
on
thé
packing
case
and
serial
number
tag.
Before
operating
this
unit,
please
read
these
instructions
completely.

We want to thank you for selecting this product and from this new addition to your home.
to welcome you to the growlng family of satisfied Please read these operating instructions carefully,
Technics product owners around the world. and be sure to keep them handy for convenient
We feel certain you will get maximum enjoyment reference.
Contents
e Accessory ......................... eta e Recording ....................0000002 2 ee 9
e For United Kingdom...................... 2 * Technical Specifications ................. 10
¢ Suggestions for Safety................... 3 ¢ Protection Circultry ...................... 10
e Gonnections .........0...00. 0.0. cee eee 4 * Troubleshooting Guide ................... 11
* Front Panei Conirois and Functions...... Ss © MiaiNiGNANCE............00. 0... eee eee a7
e Listening to the Sound................... 7
Accessory
e AC power supply cord (Refer to page 5.)......--......... 4
FOP United KIN GGOM ces: wo ie noon
The “EB” indication is shown on the name piate. As the colours of the wires In the mains fead of this apparatus
may not correspond with the coloured markings iderf'fying the
Important
terminals
in
your
plug
proceed
as
follows.
The
wire
which
is
col-
THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCOR- oured BLUE must be connected to the terminal which Is macked
DANCE WITH THE FOLLOWING CODE. —s with the letter Nor coloured BLACK. :
BLUE: NEUTRAL Ths wires which is CoMured SRCWN must be Connected to the ter-
BROWN: LIVE minal which is marked with the fetter L or cofoured RED.

WiUse a standard AC wall outlet
1. Use from an AC power source of high voltage, such as for
an air conditioner, is very dangerous.
There is the possibility that a fire might be caused by making
such a connection.
2. ADC power source cannot be used.
Be sure to check the power source carefully, especially on a
ship or other place where DC is used.
Wi Grasp the plug when disconnecting the power
supply cord
1. Wet hands are dangerous.
—A dangerous electric shock may resuit if the plug is touched
by wet hands.
2. Never piace heavy Items on top of the power supply cord,
and never force it to bend sharply.
Hi Place the unit where it will be well ventilated
Place this unit at Iaast 10 cm (4) away from wall surfaces, etc.
Be careful that curtains and similar materials do not obstruct the
ventilation holes.
@i Avold places such as the following:
In direct suntight or in other places where the temperature is
high.
In places where there is excessive vibration or humidity.
-Such conditions might damage the cabinet and/or other campo-
nent parts and thereby shorter the unit's service life.
@@ Be sure to place the unit on a flat, level sur-
— If the surface is inclined, a malfunction may result.
Mi Never attempt to repair or reconstruct this
~~ “onlt
A serious electric shock might occur if this unit is repaired,
disassembled or reconstructed by unauthorized persons, or if the
internal parts are accidentally touched.
Suggestions for Safety
Mi Take particular care if children are present
Never permit children to put anything, especially metal. inside
this unit. A serious electric shock or malfunction could occur if
articles such as coins, needles, screwdrivers, etc. are inserted
through the ventilation holes, etc. of this unit.
Wi If water is spilied on the unit
Be extremely careful if water is spilled on the unit, because a fire
or serious electric shock might occur. Immediately disconnect
the power cord plug. and consult with your dealer.
i Avoid spray-type insecticides
Insecticides might cause cracks or “cloudiness” in the cabinet
end plastic parts of this unit. The gas used in such sprays might,
moreover, be ignited suddenly.
Hi Never use alcohol or paint thinner
These and similar chemlcals should never be used, because they
might cause fiaking or cloudiness of the cabinet finish.
HB Disconnect the power supply cord If the unit
will not be used for a long time
If the unit is feft for a long time with the pawer ON, this will not
only shorten its usefu! operation life, but may aiso cause other
troubles.
i lf trouble occurs
lf, during operation, the sound is interrupted a: indicators no
longer illuminate, or if abnasmal odor or smoke is detected, im-
mediately disconnect the power cord plug, and contact your
dealer ar an Authorized Service Center.

Using
the
short-circuit
pins
(Included)
J
Shorting
pins are
inserted
into
the
“‘PHONO"’
terminais
to
reduce
noise
|
a
ES the pins before connecting a turntabie and reinsert the pins if the eon saa) j
} turntabie is later disconnected. Never connect a shorting pin to a “REC pres |
OUT" terminal of any terminal other than those above.
System configurations
Turntable (not included) Tape deck 1 {not inciuded)
Digital audio tape deck (DAT)
Tuner {not included) not included) | nt
10):
=?
j=
H
2|fesel
r
:
i
[eee
<
was.
ameeemememmnmmcemmn
|
7
i
=
os
:
Compact
disc
player
Video
disc
player
-
“a
(nat included) | (not included) i
Main (A) speaker systems Second (8) speaker systems
(not Included) inct included)
To connect to each terminals
Fe Ceca Eee bekce eee ett ha he ak en ae
H z -
Make connections to each component in the system by using stereo connection cabtes (not included).
erin st meester
Connect a component such as a video disc player (audio only con-
nectabte), etc.
Video disc player (rot included}

eee Smee a TTF:
Connect a second tape deck ar a digital audio tape deck (DAT).
Digital audio tape deck (DAT}
(not included)
IN QUT
anaog 2]
ol a! seal
Connect a compact dise player.
A superior level of tone quality can be obtained, because the
-—@lanal frarm thace tarnmiingnle are cart Ahrantiy to thea value earn
a) el ee ed ee ee
trol and pawer amp section of this unit.
--- The sounds from a camporent connected ta these terminals can-
not be recorded.
er
Compact disc player (not included)
To connect the AC power supply cord
(included)
Connect the AC power supply cord (Included) after all other
- gables and cords are connected.
—
———
AS
power
supply
Household
cord
(Included)
AC
outlet
|
Fit & suitable plug to an
AS power supply cord.
Connection to speaker systems
One pair of speaker systems can be connected to the “A”
terminals of this unit and one pair to the ''B” terminals.
Wi Load impedance
® When only the ''A” or only the "'B’ terminals are used:4-16
ohms
®*When both the “A” and the “B’ terminalis are used slmul-
taneously:8-16 ohms
Main (A) speaker systems
{not included)
(right)
Te ae
HO Ow
Second (B) speaker systems
5 a | {not included)
i
i (right) (lett)
Mi To connect cords to terminals
® Strip off the outer cover. <T:
ing, andtwist the center ——e >
conductor. 10 mm Twist.
(13/32""}
>
Turn
5
of
6
times.
m
3 Insert the wire and tighten ay
screw completely.
Pull the wire 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-
.
7
circuit the plus (+) and minus (—) speaker AO’ Ke
terminals. ae

Front Panel Controls and Functions
[1} Power switch (power)
[2] Operation Indicators
(amplifier operation monitor)
This indicator illuminates to indicaie tne operating condition
of this unit.
voltage control:
When the power is switched ON, this indicator illuminates
when the unit Is in the operation condition.
current drive:
When the power is switched ON, this indicator illuminates
after about 4 seconds when the unit is in the operation condi-
tion.
If an abnormal condition in the circuitry is detected, such as
DC voltage appearing in the output, or a short-circuit of the
positive (+} and negative (—) wires from the speaker ter-
minals, the protection circuit functions and this indicator
does not illuminate.
[3] Power amplifier direct switch
(power amp direct)
This switch is used to listen to the sound from a component
connected ta the “POWER AMP DIRECT™ terminals.
When this switch is pressed inward to the ‘“‘on” position, a
superior level of tone quality can be obtained, because the
signals from the component connected to the “POWER AMP
DIRECT” terminals are sent directly to the volume control
and power amp section of this unit. The mode selector,
loudness switch, balance control and tone controi circult are
hunsacear
wy pS
[4] Volume control/indicator (volume)
There are two types of volume scale indications: one for
when the power amplifier direct switch is OFF, and one for
wher it is ON (Indicator will illuminate.).
[5] Input selector (input selector)
This selector is used to select the sound source to be heard
1 a SS eee ae Se ~~ ae Sure we . = FF
such as a disc, radio broadcast, etc.
(6! Recording output selector (rec selector)
This selector is used to select the sound source to be record-
ed by the connected tape deck 1 and/or tape deck 2.
{7} Phono cartridge selector (phono selector)
This selector should be set to the position which corresponds
ta the type of cartridge used on the turntable.
[8| Mode selector (mode)
This selector is used to select stereo or monaural operation.
[9} Loudness switch (loudness)
This switch Is used when listening to music at a iow volume
tevei. Auditory perception of sound in the low frequency range
falis off at low volume, but when the swiich is set to the “on”
position, this deficiency is compensated for, so that the full im-
nact af the musical nerformance can be eninved
sSsprta-ett “70
ftol Tone control switch (tone contro)
This switch is used to turn the tone control circuit fhass,
trebles on or off.
fi] Balance control (balance)
This control is used to adjust the left/right volume balance.
fia Tane controls (bass/treble)
The bass contro! is used to adjust the low-frequency sound
range, and the treble contro! is used to adjust tre hign-
trequency sound range.
[3] Speaker selectors (speakers)
These selectors are used to turn the speaker systems on and
oft.
4] Headphones Jack (phones)

Listening to the phono disc or tapes,
etc.
Set the volume control to the “co” position.
Switch ON the power switch.
mech
Select the speaker system [main (A) and/or
~ second (B)] to be used.
AL Sie power power amp direct!
Set the power amplifier direct switch to the
“off” position.
“BR input selector:
=.ae-Select the sound source.
tape 2/DAT: Set to this position to listen to equipment con-
nected to the “TAPE 2/DAT” terminals.
tape 1: Set to this position to listen to the tapes.
CD: Set to this position to listen to compact discs.
tuner: Set to this position to listen to radio broadcasts.
ee phono: Set to this position to listen to phono discs.
Then, set the phono cartridge selector to the posi-
tion which corresponds to the type of cartridge
used on the turntable. (Refer ta ‘phono selector”
on page 8.}
aux: Set to this position to listen to equipment connected
to the “AUX” terminals.
: Begin operation of the components to be
used.
Refer to the operating instructions of each component.
me vA [volume
Adjust the volume level.
Gethiiet thea tans qualitu ate (Daftar tn a Qi
reajuse aims LMI Guay, whw. ye miu 1S ar dl
mana
Volume
indicator
ESC val lire mm com Mmerelitlselit-latmorelalircen tre
to the “POWER AMP DIRECT”
terminals
1] Follow steps 1 — 3 described at the left.
[power amp direct:
<= Set the power ampiitier direct switch to the
“on” position.
(The volume indicator will illuminate.)
‘volume
Adjust the volume level using this scale.
Note:
The tone quality, the mode,
ithe iGudness,
balance cannot
justed.
es | eh
cari Spier
be ad-
After listening is finished
Use the e volume con j to reduce the volume Jevel and switch
MLE th oy amar nt An .imi+
3

LISTENING TO TNE SOUNT connes
nee
as
While listening to music .
Select the cartridge-type when Iistening to
phono discs.
MM { =-~ #):Set to this position when using a movingmagnet
type cartridge or hiqh-autput movingcoil cartridae
(i mV or more).
MC(s— «): Set to this position when using a moving-coil type
cartridge.
‘mode
Select the stereo or monaural operation.
stereo( .— a):Set to this position to listan in stereo.
mono{ £— «}:Set to this position to listen monaurally.
The left and right sounds will be mixed, and the
same sounds will be heard from both speakers.
lloudness:
When listening to music at a low volume level,
press inward the loudness switch to the “on”
position for compensation of the bass range.
tone controt
Press the tone control switch to the “on” pos!-
tion if you want to adjust the bass or treble
tone quality.
If set to the “‘defeat" position, tone controls have no effect, and
fraciranoir raenAnesa Khannamac flat
Te rnquemiiay weopwe te ee
Adjust the balance for the left/right volume.
itreble;
Adjust the high-frequency sound to the desired
tone quality.
bass]
Adine? tha
“ag wwe ssaw - == gu ci yy
tone quality.
"balance.
|
ficadeese
|
guia
phaae
selector
‘tone control
While listening dalgolerelsmsl-t-lefsistelar
Speaker selectors
Headphones (not included)
e Reduce the volume level befare connecting headphones.
*!f the sound from the speakers is not wanted, set the speaker
selectors to the “off” position.
¢ Avoid listening for a long time at a volume level so high that #
irritates the ears.

AKom c-retolcoMicelismeres til ey-1e4 mel (tot ea 1 ee
{=
Set the volume level to the “co” position.
)
- Switch ON the power switch.
2 [speakers]
Select the speaker system [main (A) and/or
second (B)] to be used.
455 amp direct|
Set the power amplifier direct switch to the
_ Soff” position.
Notes:
. If this switch is set to the “on” position. the sound
selected by the input selector cannot be heard. (There is
no problem In recording.}
2. The sounds from a component connected ta the
“POWER AMP DIRECT™ terminals cannot be recorded.
5 [rec selector:
Select the program source to be recorded.
CD: Set to this position to recard fram compact discs.
tuner: Set ta this position to record from radio broadcasts.
phono: Set to this position to record from phono discs.
aux: Set to this position to record from equipment con-
nected to the “AUX"™ terminals.
Begin the operation of the sound source to
be recorded.
Refer to the operating instructions of each component.
Adjust the recording level by using the con-
trols on the tape deck 1 and/or 2 (or DAT).
Then begin recording.
Refer to the operating instructions of the tape decks or DAT.
Note:
Taps deck 1 is the tape deck connected to the “TAPE 1”
terminals.
Tape deck 2 is the tape deck connected to the "TAPE 2/DAT™
terminals.
4 1 5 Input selector
Wi To listen while recording
* To listen to the source being recorded ...
The input selector setting and the recording output selector
setting should be the same.
© To listen to a source other that the one now being
recorded ...
Select the source by using the input selector.
BE Ta rnhankl tha enim
| ee ee ee
If the recording is being made to tape deck 1, use the “tape 1”
input selector setting; if the recording is being made to tape
deck 2 (ar DAT), use the “tape 2/DAT” input selector setting.
eli Gig-retelceliars!
Tape-to-tape recordings can be made if two regular tape decks,
Or one regular tane deck anda digital audin tape (DAT) deck are
aN yg hens Spee Se he SA Ne BeAr Sener ma TD ae
connected to the rear panel of this unit.
Mi To record from tape deck 1 to 2 (or DAT)
1. Set the recording output selector to the “tape 1®2/DAT”.
2. Set the input selector to the ‘tape 1”.
3. Begin the tape deck 1 for playback and the tape deck 2 (or
DAT} for recording.
To check the sound being recorded, set the input selector to the
“tape 2/DAT™ pasition.
Mi To record from tane deck 2 for DAT} to 1
1. Set the recording output selector to the “tape 2/DAT» 1”.
2. Set the Input selector to the “tape 2/DAT”.
3. Begin the tape deck 2 (or DAT) for playback and the tape deck
1 for recording.
To check the sound being recorded, set the input selector to the
“tape 1'' position.
Wf To listen to a sound source other than the one
being recorded
Use the input selector to select the sound source you want to
hear.

Technical Specifications unas s00
20 Hz~ 20 kHz continuous power output
both channels driven
1 kHz continuous power output
both channels drivan (THD: 1%}
2 * 85 W (8 2)
2* 95 WO)
2 135 Wa
83 Hz~ 12.5 kHz continuous power output
both channels driven (0.7 %) 2 85W (80)
2 * 120 W (4G)
Total harmonic distortion (Power Amp Direct input} —
rated power at 20 Hz~20 kHz 0.005 % (8 GQ)
rated power at 1 kHz 9.0009 % (8 D}
0.002 % {4 2)
half power at 20 Hz~ 20 kHz 0.005 % (8 ©)
half power at 1 kHz 0.0009 % (8 G)}
0.002 % (4 Q)
Intermodutation distortion
rated power at 50 Hz: 7 kHz= 4:1, SMPTE, 8 ©
Residual hum and noise
Damping factor
Headphones output level and impedance
Load impedance
0.007 %
0.2 mV
60 (8 Q), 30 (4 29)
650 mvV/330
AorsB 4Q~162
Aand B 8Q~16 0
Input sensitivity and impedance ee
PHONO MM 2.5 mVI47 kQ
PHONO MC 170 pVv/220
TUNER, CD, AUX, TAPE 1, TAPE 2/DAT 150 mV/22 kO
POWER AMP DIRECT 1VNB ko
Phono maximum input voltage (IHF '86, 1 kHz, RMS)
Mia 170 mv
MC 12 mv¥
SIN
rated power (4 ©)
PHONO MM 79 dB (IHF '66: 86 dB)
PHONO MC 67 dB (iHF '66: 68 dB, 250 pV)
TUNER, CD, AUX, TAPE 1, TAPE 2/DAT
97 dB UHF "66: 100 dB)
POWER AMP DIRECT 106 dB UHF "66: 115 dB}
—26 dB power (4 ©)
PHONO MM 77 dB
PHONO MC 67 dB
TUNER, CD, AUX, TAPE 1, TAPE 2/DAT 84 dB
30 mW power (4 0}
PHONO MM 75 dB
PHONO MC 67 dB
TUNER, CD, AUX, TAPE 1, TAPE 2/DAT 78 dB
Protection Circuitry
The protection circuitry may have operated if either of the foliow-
ing conditions ts noticed:
® No sound is heard when the power is switched ON.
(The current drive indicator of the operation indicator is not
illuminated.)
* Sound stops during a performance.
The function of this circuitry is to prevent circultry damage if. for
avamnia tha nnsitive ana nanatiuem sanoaoslbar Anne AAtAR UWuirae awe
WAS, LEIS PIS Gl IO YalIeo OPENS! UME ISTO wifSs aig
“shorted”, if speaker systems with an Impedance less than the
ef oe
Frequency response
PHONO RIAA Standard curve
$0.8 dB (360 Hz~15 kHz)
TUNER, CD, AUX, TAPE 1, TAPE 2/DAT
2H? ~ 100 bety f— 2 Aaa
amt Ss rer AT rae | en
+0 dB, —0.2 dB (20 Hz~20 kHz)
2 Hz~120 kHz (—3 4B)
+0 dB, —0.2 dB (20 Hz~20 kHz}
POWER AMP DIRECT
Tone controts —
BASS 50 Hz, +10 dB, -10 dB
TREBLE 26 kHz, +710 dB, —10 dB
Loudness control (volume at — 30 d8) 50 Hz, +9 dB
Output voltage
TAPE 1, TAPE 2/DAT, REC OUT 150 mV
Channel balance, AUX 250 Hz~ 6,300 Hz +148
Channel separation, AUX 1 kHz §9 dB
@ GENERAL
Power consumption 540 W
Power supply
Almanelnwe FA we Bw Ty
> “3
Sree cee EE eS Le ag
AC 50 Hz/6G Hz. 240 V
420 ¥ 1528» 275 mm
{16-*5/16" * G-7/32" x 14-9/18"}
Weight 115 kg (25.4 Ib}
Notes:
1. Specifications are subject to change without notice.
Weight and dimensions are approximete.
2. Total harmonic distortion Is measured by the digital spectrum
analyzer.
indicated rated impedance of this unit are used, or if DC
voltage appears in the output
lf this occurs, follow the procedure outlined below:
1. Switch OFF the power.
2. Determine the cause of the problem and correct it
3. Switch ON the power once again
Note:
Ak. mw Oh.
SRLS Ld
A
8, ihe unit wii not operate
ions,
OFF and then ON again.
ultry functi
switched
q
U

Troubleshooting
Guide
Before requesting service for this unit, check the chart below for a possible cause of the problem you are experiencing. Some simple checks or
a minor adjustment on your part may ¢liminate the problem and restore proper operation.
If you are in doubt about some of the check points, or if the remedies indicated in the chart do not solve the problem, refer to the directory of
Authorized Service Centers {enclosed with this unit) to locate a convenient service center, or consult your Technics dealer for Instructions.
Problem Probable causa(s
F
volume. the “MM” position when a moving-coil type
_ Cartridge is being used.
The high-frequency range
cannot be clearly heard. : the "MC" position when a moving-magnet type
: cartridge is being used.
Problems noted at all times
The sound lacks clarity and | The phono cartridge selector is incorrectly set to
The phono cartridge selector is incorrectly set to © « Set it to the "MM" position.
Sugaested remedy
SS SS ee ?
* Set it to the "MC" position.
No sound ie heard when the
power is switched ON.
Tha noawer cnrri
PRR ROMP RTE Werle h ee
i mili
wiht um L ‘
Te thee
Connections are incomplete or incorrect to the
speaker systems, etc.
The input setector’s setting is Incorrect.
The speaker selectors are set incorrectly.
One of the speakers is connected out of phase
When listening to stereo
sound, the sound lacks
depth (i.e. thin bass, tinny
sound).
When listening to stereo
sound, the ieft and right
sounds are reversed.
A lfow-pitched noise (“hum”
or “buzz”) is heard.
Sound is not heard from
one of the speaker
systems.
(Ct) at) tC
: The left and right speaker connections, source
- connections, or graphic equalizer connections
; are reversed.
the connection wires.
The speaker wires are disconnected.
The balance control is set too far to one side.
Sound stops during a
performance, or no sound
is heard when the power is
switched ON.
_ the pasitive and negative speaker connection
: impedance less than the Indicated rated
: impedance of the amplifier are used.
| DC voltage appears in the output, causing the
| protection circuitry to function.
Maintenance
To clean this unit, use a soft, dry cloth,
Tor very dirty Surfaces, dip a soft cloth in a weak soap-and-water
solution and wring well. After cleaning. wipe with a soft, dry cloth.
ee a es
[om ic aat camniletaly incartad
vw tw he ie Vwi iw.
; * Check all connections and correct them it
' The power cord or a fluorescent light, etc.,isnear |,
; © Check and correct the connections of the speaker
: ® Set so that sounds are heard at the center,
The protection circuitry has functioned because * Switch OFF the power, and, after determining and -
wires are “shorted” or speaker systems with an
¢ Confirm tha
completely.
* Check to be Sure that all connection wires are
correctly connected.
t tra nawar nara nlicn ic rannacstan
BREEN PPM pt ee OE ee er ee et
* Check ta be sure that the selection of the desired
sound source is made correctly.
* Set them to the correct position.
* Reconnect the speakers maintaining proper
polarity [i-e., (+) (+). (-J>(-JL
necessary.
¢ Try separating this unit as far as possible from the
electric appliance.
wires.
between the speaker systems.
correcting the cause, switch ON the power once
again.
«Use a speaker system of the proper impedance
rating.
Never use alcohol, palnt thinner, benzine, or a chemicaily treated
cloth to clean this unit.
Such chemicals may damage the unit’s finish.

@)
Matsushita Electric Industrial Co., Ltd.
Central P.O. Box 288, Osaka 530-91, Japan
RQT0138B
Printed in Japan HNARACH