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STEREO INTEGRATED AMPLIFIER

SU-VZ32O

OPERATI NG I NSTRUCTIONS

. Specifications differ according to the area code. . The "EB" area code, for example, indicates United Kingdom specifications
oThe "EB" indication is shown on the packing case and serial number tag.
Before operating this unit, please read these instructions completely.

Notes:

RQT1339.B

E N

Printed in Japan

H1291M0

9"o*9d^"*,?o*
We want to thank you for selecting this product and

to welcome you to the growing family of satisfied
Technics product owners around the world. We feel certain you will get maximum enjoyment

from this new addition to your home. Please read these operating instructions carefully, and be sure to keep them handy for convenient relerence.

Contents
a a a
a

Accessory For United Kingdom.

Gonnections.....
Front Panel Controls and Functions Listening to the Sound Recording
..

.. ..

a
O

2 2 3 5 6 8

o Technical Specifications

o Protection Circuitry o Maintenance.

.

. SuggestionslorSalety . Troubleshooting Guide

..-.10 .....-.11
Back cover

.... 10 .... 10

CAUTION:
The AC voltage is different according to the area. Be sure to set the proper voltage in your area before use. (For details, please refer to the page 4.)

Accessory
.Aopowersupplycord
......1

Configuration of the AC power supply cord differs according to area.

Fo

r

U n ited Ki

ngdom

(..E8,, a,ea code mode, on,y)

The "EB" indication is shown on the serial number tag.

lmportant
THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE. NEUTRAL

BLUE:

BROWN:

LIVE

As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identilying the terminals in your plug proceed as lollows. The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK. The wire which is coloured BROWN must be connected to the ter' minal which is marked with the letter L or coloured RED. Under no circumstances must either of the above wires be connected to the earth terminal of a three pin plug.

2

Connections
Make connections to each component in the system by using stereo connection cables (not included).

Stereo connectlon

cable

White (L)
Red (R)

"PHONO" terminals
Connect a turntable.

"AUX'terminals
Connect a component such as a video disc player (audio only con-

nectable), etc. Turntable (not included)

L:ll
Ground wire (not included)

l^il^ltvt

t;;t

Video disc player (not included)
I
I

(R)(u

'TUNER" terminals

"TAPE 1" terminals
Connect a firsl tape deck.

Tuner (nol included)

Tape deck 1 (not included)

(R)

(u

(E (u

"CD" terminals
Connect a compact disc player.

*TAPE 2[DAT" terminals
Connect a second tape deck or a digital audio tape deck (DAT).
I Rec prnv
I
ITAPE

t;r ltaL_ le+rrltt ll {E GJ

,loArl
I

I

l-L-E

Compact disc player (not included) con

lo' ol---(R)

our

arcxl

Digital audio tape deck (DAT) (not included)

Pi_$ (L) (E

(u

I

3

Con nections
Gonnection to

(con,nued)

To set the

One pair ol speaker systems can be connected to the "A" terminals of this unit and one pair to the "8" terminals. Make connections to each speaker system by using speaker cords (not included).

Set the voltage selector to the voltage setting for the area in which the unit will be used. [Use a minus (-) screwdriver]

.Il!:\
@

Llr

@@@@o@@o

@ 6

OOOOOOOO@

Note:

Note that this unit will be seriously damaged if this setting is nol made correctly.

To connect the AC power supply cord
(included)

Second (B) speaker systems (not included)

Connect the AC power supply cord (included) after all other
cables and cords are connected.

@

@oo@o@@@o OOOOOOOO@

6'666

@)..(r

@@
AG power srpply cord

I

Load impedance
ohms

rWhen only the "A" or only the "8" tetminals are used: 4-16 r When both

(included)

the "A" and the "8" terminals are simultaneously: 8- 16 ohms

used

rFl+_@l
Household AC outlet

/_

Note:

I
O

To connect cords to termlnals
Strip olf the covering, and twist center conductor.

Conliguration ol AC power supply cord dilfers according to area

outer the

O

t
10 mm

-=
@

Twist

@ Turn completely to the
left.

@ lnsert the wire and turn

completely to the right. Pull lhe cord to assure a proper connection. Note: Be sure to only connect positive (+) cords to positive (*) terminals, and negative (-) cords to negative (-) terminals.

'd

a suitable plug to the AC power supply cord.

Note:

To prevent damage to circuitry,
speaker wires.

never

short-circuit lhe plus (+) and minus

(-)

4

Front Panel Controls and Functions
TbclDl6 f sERrc rME@TEo eruls su-@

E ls

fel
"

;S,l

li#.i*

f

eower switch (POWER)

@ Aalance controt

(BALANCE)

This control is used to adjust the left/right volume balance.

@ eower indicator

(POWER INDICATOR)

When the power is switched ON, this indicator illuminates

@ Loudness switch

(LOUDNESS)

This swilch is used when listening to music at a low volume

@ Source direct switch
This switch

(SOURCE DTRECT)
enjoying high quality sound

is used when

level. Auditory perception of sound in the low frequency range falls off at low volume, but when the switch is set to the "ON" position, this deficiency is compensaled for, so that the lull impact of the musical performance can be enioyed.

playback such as that from a CD.

@ Votume control

(VOLUME)

fl

Uoae selector (MODE)
This selector is used to select stereo or monaural operation.

@ lnput selector (INPUT

SELECTOR)

This selector is used to select the sound source to be heard,

@ Sulsonic filter switch (SUBSON|C
cone caused by a warped disc, etc.

FTLTER)

such as a disc, radio broadcasl, etc.

This switch is used to eliminate ultralow{requency noise such as motor "rumble" and unusual vibration of the woofer

@ Headphones jack

(PHONES)

@ RecorAing selector (REC SELECTOR)

fl

This selector is used to select the sound source to be recorded by the connected tape deck 1 and/or tape deck 2 (or

Speaker selectors (SPEAKERS)
These selectors are used to select the speaker systems to be used.

DAT).

@ tone controls

(BASSTTREBLE)

The bass conlrol is used to adjust the low-frequency sound

range, and the treble control is used to adjust the high{requency sound range.

5

Listening to the Sound

o

oo
"o"
position.

1

Set the votume control to the

While

!

t**"n

oN the power.

u

Select the speaker system (A, B or A+B) to be used.

Select the sound source.
TAPE 2IDAT: Set to this position to listen to equipment con-

nected to the "TAPE 2DAr" terminals. TAPE l: 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. PHONO: Set to this position to listen to phono discs. AUX: Set to this position to listen to equipment connecled to the "AUX" terminals.

o

Reduce the volume level before connecting headphones. selectors to the "OFF" position. Avoid lislening lor prolonged periods ot lime to prevent hearing damage.

r lf the sound lrom the speakers is not wanted, set the speaker
o

Begin operation of the components to be us. ed.
Reler lo the operating instructions of each componeni.

$

miu"t the volume levet.

6

SOURCE DIRECT TREBLE

LOUDNESS

TbcnDl6

$EFrcrMERTssMm

$-w

o

'*G.*
tropEl Select the stereo or monaural operation. STEREO ( r + I ): Set to this position to listen in stereo.
MONO (

While listening to music
FOURcE paEEcrl

Set this switch to "ON" to enjoy high quality sound playback such as that from a CD. When adjusting tone quality (BASS, TREBLE), set this switch to "OFF".

l-

- ^ ): Set to this position to listen monaurally. The lelt and right sounds will be mixed, and the
same sounds will be heard lrom both speakers.

FASEI

FOBSoNC-FILrER-l

Adjust the low-frequency sound to the desired tone quality.

Set this switch to the "ON" position il you want to elimlnate ultra-low-frequency noise such as motor "rumble" and unusual vibration ol the woofer cone caused by a warped disc, etc.

FFEBLE

Adjust the high-frequency sound to the desired tone quality.

IBALANcEI

Adjust the balance lor the left/right volume.

EoupNesq When llstening lo music at a low volume level, press the loudness switch inward to the "ON" positlon for compensation of the bass range.

After listenino is linished
Use the volume control to reduce the volume level and switch OFF the power ol each unit.

7

rI

Recording

Note: Tape deck 1 is the tape deck connecled to the "TAPE 1" terminals. Tape deck 2 is the tape deck connected to the "TAPE 2/DAT" ter-

minals.

o

o
discs, etc.

a
I
To listen to a source other than the one now being recorded ...
Select the source by using the input selector.

To record from

.1
I

Select the program source to be recorded.
COr Set to this position to record trom compact discs. TUNER: Set to this position to record from radio broad-

casts. PHONO: Set to this position to record lrom phono discs. AUX: Set to this position lo record lrom equipment connected to the "AUX" terminals.

Set the input selector to the same position as the recording selector has been set.

lTo

check the sound recorded

With a tape deck with 3 heads, it is possible to check the sound recorded on the tape. Sot the input seleclor to "TAPE 1" or "TAPE 2IDAT" and lhe monltor swatch on the tapo deck to *TAPE'.

Start recording, and play back the source.
(Refer lo the operating inslructions for the tape deck for detailed operation of lhe recording level adjustment.)

"TAPE 1": when recording on tape deck

1.

'TAPE ZDAT": when recording in tape deck

2.

8

o

Tape-to-taoe recordi
Tape-to-tape recordings can be made il two regular tape decks, or one regular tape deck and a digital audio tape (DAT) deck, are connected to the rear panel of this unit.

I

To listen to a source other than the one now being recorded...

Select the source by using the input selector.

To record lrom tape deck 2 (or DAT) to

I

1 fi,ll"
/S"rthe

recordins selector to "TAPE 2tDAr

lTo
input selector to "TAPE 2|DAT".

check the sound recorded

With a tape deck with 3 heads, it is possible to check the sound recorded on the tape. Set the input selector to "TAPE 1" or "TAPE 2[DAT" and the

monilol switch on the tape deck lo "TAPE".

Start the tape deck 1 for recording and the tape deck 2 (or DAT) lor playback.

"TAPE 1": when recording f rom tape deck 2 (or DAT) to

1.

'TAPE 2IDAT": when recording lrom tape deck 1 to

2.

To record from tape deck

I

to 2 (or DAT)

11 Set the recording selector to "TAPE 1 )
Ll

zoar'.

p""rthe

input selector to "TAPE 1".

Start the tape deck 2 (or DAT) for recording and the tape deck 1 for playback.

I

Technical Specifications
Hz-20 kHz continuous powor output both channels driven 1 kHz contlnuous power outpul both channels drlven (IHD:I%)
2O

(D,N 4s soo)

2x40w(8o)
2x50W(8O) 2x75W(4O)
2x

63 Hz-12.5 kHz contlnuous powsr output both channels drlven (THD: 0.7%)

45 W (8 O)

2x65w(4O)
o.o2% 0.007% 0.02% 0.007%
(8 (8 (8 (8

Frequency reaponso PHONO MM RIAA standard curve +1 dB (30 Hz-15 kHz) TUNER, CD, AUX, TAPE 1, TAPE ZDAT 3 Hz-80 kHz (+0, -3 dB) +0 dB, -0.3 dB QA Hz-20 kHz) Tone controls 50 Hz, +10- -10 dB BASS
TREBLE

2OkHz,+10--10dB

Total harmonic distortion
rated power al 2O Hz-20 kHz rated power al 1 kHz hall power al2O Hz-20 kHz hall power at 1 kHz rated power Residual hum and noise Damping lactor Headphones output level and Load impedance
A)
c))

Subsonic lilter Loudness control (volume at -30 Output Yoltage
TAPE 1, TAPE 2,DAT REC OUT

dB)

30 Hz, -6 dB/oct 50 Hz, +9 dB
150 mV

cl)
c))

lntermodulatlon distorlion (50 Hz:7 kHz=4:1, SirPTq
0.o2% (8 A)

Channel balance (AUX, 250 Hz-6.3 kHz) Channel sparation (AUX, I kHz)

+1dB
50 dB

1mV

impedance

40 (8 O) 20 (4 O') 450 mV/330 Q

AorB
AandB
lnput sensltlvlty and lmpedance
PHONO TUNER, CD, AUX, TAPE

4-16 f) 8-16 ()

I

GENERAL
175 W AC 50 Hzl60 Hz,23OVt24OV 430 x 125 x 320 mm

MIS

I,

TAPE

Phono maxlmum input yoltage (1 kHz, RMS)

ZDAT

2.5 mYt47 kQ
150 MV/22 KO

Powel consumptlon Power supply

Dimensions(WxHxD)
Weight

Mi,

150 mV (150 mV, IHF'66)

7.3 kg

SIN (rated power, fl) 'l 76 dB (79 dB, IHF '66) PHONO MM TUNER, CD, AUX, TAPE 1, TAPE ZDAT 91 dB (99 dB, IHF ',66) 9N at -26dB power (4 O) 68 dB PHONO Mlrl 70 dB TUNER, CD, AUX, TAPE 1, TAPE 2,DAT SrN at 50 mW power (4 O) 64 dB PHONO MII 64 dB TUNER, CD, AUX, TAPE I, TAPE 2,DAT

Notes:
'1

.

Specif ications are subject to change without notice.

2.

Weight and dimensions are approximate. Tojal harmonic distortion is measured by the digital spectrum analyzet.

This apparatus was produced to BS 800.

Protection Ci rcuitry
The protection circuitry may have operated il either ol the follow-

lf this occurs, follow the procedure outlined below:

ing conditions is noticed: o No sound is heard when lhe power is switched ON. o Sound stops during a performance. The lunction of this circuitry is to prevent circuitry damage if , for example, the positive and negalive speaker connection wires are "shorted", if speaker systems with an impedance less than the indicated rated impedance of this unit are used, or if DC voltage appears in the output.

1.

2.
3.

Switch OFF the power. Determine the cause of the problem and correcl it. Switch ON the power once again.

Note:
When the protection circuitry functions, the unit will not operate unless the power is first switched OFF and then ON again.

Maintenance
To clean this unit, use a soft, dry cloth. For 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. Never use alcohol, paint thinner, benzine, or a chemically treated cloth to clean this unit. Such chemicals may damage the unit's finish.

10

Suggestions for Safety
1.

I

Use a standard AC wall ouilet
Use lrom an AG power source

2

an elr condltloner, is very dangerous. There is the possibility that a fire might be caused by making such a connection. A DC powor aourco cannot be used. Be sure to check the power source carefully, especially on a ship or other place where DC is used.

ol hlgh voltage, such as lor

ITake particular

care

il children are present

Never permit children to put anything, especially metal, inside this unit. A serious electric shock or mallunclion could occur if articles such as coins, needles, screwdrivers, etc. are inserted through the ventilation holes, etc. of this unit.

I
l.
2.

Grasp the plug when dlsconnecting the power

I

lf water is spilted on the unit

Be extremely carelul if water is spilled on the unit, because a lire

supply cord
Wet hands ars dangerous. A dangerous electric shock may result if the plug is touched by wet hands. Never place heayy llems on top ol the power supply cord, and never lorce lt to bend sharply.

or serious electric shock might occur. lmmediately disconnect
the power cord plug, and consult with your dealer.

I

Avoid spray.type insecticides

I

Place the unit where it wlll be well yentilated

lnsecticides might cause cracks or "cloudiness" in the cabinet and plastic parts of this unit. The gas used in such sprays might, moreover, be ignited suddenly.

Place this unit al least iO cm (4") away from wall surfaces, etc. Be careful that curtains and similar materials do not obstrucl the ventilation holes.

I
IAvoid places such as the following:
ln dlrecl sunllght or ln other places whero the lemperalure ls

Never use alcohol or paint thinner

These and similar chemicals should never be used, because they might cause llaking or cloudiness ol the cabinet finish.

hlgh. ln placss whero thoro ls excesslve vlbrailon or humldlty.
Such conditions might damage the cabinet and/or other component parts and thereby shorten the unit's service life.

I

Disconnect the power supply cord lf the unit wlll not be used for a long time

I

Be sure to place the unit on a flat, level sur. face

ll the unit is left lor a long time with the power ON, this will not only shorten its useful operation life, but may also cause other troubles.

lf the surface is inclined, a malfunclion may result.

I

Never attempt unit

to repair or reconstruct this

I

lf trouble occurs

A serious electric shock might occur if this unit is
internal parts are accidentally touched.

repaired, disassembled or reconstructed by unauthorized persons, or if the

operation, the sound is interrupted or indicators no longer illuminate, or il abnormal odor or smoke is detected, immediately disconnect the power cord plug, and contact your dealer or an Authorized Service Center.

ll, during

11

Troubleshooting Guide
Before requesting service for this unit, check the chart below for a possible cause ol the problem you are experiencing. Some simple checks or a minor adjustment on your part may eliminate lhe problem and restore proper operation. ll you are in doubt about some of the check points, or if the remedies indicated in the chart do not solve the problem, reter lo the directory of Authorized Service Centers (enclosed with this unit) to locate a convenient service cenler, or consult your Technics dealer for instructions.

Problem

Probable cause(s)

Suggested remedy

Problems noted at all times
No sound is heard when

lhe

The power cord plug is not completely inserted.

oConlirm that the power cord plug is connected
completely. r Check to be sure that all connection wires are

power is switched ON.
Connections to the speaker systems, etc. are incomplete or incorrect. The input selector's setting is incorrecl The speaker selectors are sel incorrectly. One of the speakers is connected out of phase

correctly connected.

. Check to be sure that the selection ol lhe desired
sound source is made correctly.

When llstening to sleleo

sound, the sound lacks depth (i.e. lhln bass, tinny
sound).

[(+)-(-), (-)-(+)].

. Set lhem to the correct position. . Reconnect the speakers maintaining proper
polarity [i.e.,

(+)-(+), (-)-(-)].

When listenlng to stereo sound, the lelt and right sounds are reversed. A low.pitched noise ("hum" ot "buzz") is heard. Sound is not heard lrom one ol lhe speakel systems.
Sound stops during a

The left and right speaker connections, source connections, or graphic equalizer connections are reversed. The power cord or a fluorescent light, etc., is neal the connection wires. The speaker wires are disconnected.
The balance control is set too far to one side. The protection circuitry has funclioned because

o

Check all connections and correct them if
necessary.

. Try separating this unit as far as possible lrom the
eleclric appliance.

. Check and correct ihe conneclions ol the speaker
wires. Set so that sounds are heard at the center, between the speaker systems. o Switch OFF the power, and, after determining and correcting lhe cause, switch ON the power once again.
o

performance, or no sound is heard when the power ls switched Otl.

lhe posilive and negative speaker connection wires are "shorted" or speaker systems with an
impedance less than the indicated rated imoedance ol the amolilier are used.

r Use a speaker system of the proper impedance
ralinq.

Matsushita Electric lndustrial Co., Ltd. Central P.O. Box 288, Osaka 530-91, Japan
RQT1339-B