Technics SA-GX790, SA-GX690, SA-GX490, SA-GX390, SA-GX290 Operating Instructions Manual

Technic

AV Control Stereo Receiver

SA-GX790/GX690

SA-GX490/GX 390/GX290

P

Operating Instructions

, , ,:,, -,,-'

:f. , :, _..... . " _.,,,. j .....¢. , _ , The photographs show SA-GX490.

The configUration of the ventilation holes differs according to area•

!'_' ' " .... . *. Before connecting, olSeratlng or adjusting this product,

, _ ", .please read these instructions completely•

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RQT2753-P

Dear Customer

Thank you for purchasing this Technics product.

For optimum performance and safety, please read
these instructions carefully.

These operating Instructions are applicable to
models SA.GX790, SA.GX690, SA.GX490, SA-GX390
and SA-GX290, however, are Intended primarily for
model SA-GX490.

The model number and serial number of this product can be

found on either the back or the bottom of the unit.
Please note them in the space provided below and retain

them for future reference.

MODEL NUMBER .......................................

SERIAL NUMBER .......................................

THIS PHRASE IS APPLIED ONLY FOR U.S.A.:,

CAUTION:

Any unauthorized changes or modifications to this equipment
would void the user's authority to operate this device.

WARNING:

TO REDUCE THE RISK OF FIRE OR

ELECTRIC SHOCK, DO NOT EXPOSE THIS

APPLIANCE TO RAIN OR MOISTURE.

Precautions ................................. ....... ,3

Accessories ........................................ ,4

Front panel controls .............................. S

Equipment connections .......................... 6

Antenna connections ............................. 8

Speaker connections ............................. 9

Basic operetions .................................. 12

If sound output stops during use or if you are unsure

what to do ............................................ 13

To adjust the tone quality .............................. 13

To mute the sound level ............................... 13

To adjust the sound balance ........................... 13

To emphasize low frequency sound

l.-f_,_et:qrJ_[e)let:(,1=IiJFJ,ql ............................... 13

To listen through headphones .......................... 13

To switch the VCR to the front or rear "VCR 2" terminal

...................................... 13

Listening to redid broadcasts .................... 14

Direct access tuning .................................. 14

Sequential tuning ...................................... 14

Preset tuning ......................................... 15

Enjoying sound with DOLBY PRO LOGIC ..... 17

SURROUND .......................................... 17

3 STEREO ............................................ 17

Setting the center mode ............................... 17

Adjusting speaker output level .......................... 18

Adjusting the delay tlme Ik'f_,_et:f_I)n_.,_l,=.mql ........ 19

Enjoying with SURROUND or 3 STEREO ................. 19

Enjoying sound with SFC

E_,'_r_'_[l_'D[f_[I TJ[4_i_,_(;I_I fll,] i i i,i ................................ 20

Adjusting field of sound ................................ 20

Making a recording ................................ 21

Recording on the tape deck ............................ 21

Recording on the VCR (VCR 1).......................... 21

About the HELP function ....................... .22

About the On-Screen Display function

........................................ 22

Product service .................................... 22

Troubleshooting guide .......................... .23

Technical specifications ............. _.Back cover

CAUTION:
TO PREVENT ELECTRIC SHOCK MATCH
WIDE BLADE OF PLUG TO WIDE SLOT,

FULLY INSERT.

CAUTION

CAUTION: TO REDUCE TH E RISK OF ELECTRIC

SHOCK, DO NOT REMOVE SCREWS.
NO USER-SERVICEABLE PARTS
INSIDE.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.

A The lightning flashwitharrowhead symbol, within

_'_ anequilateraltriangle,isintendedtoalertthe user

• P_ tothepresenceofuninsulated"dangerousvoltage"
IL. withintheproduct'senclosurethat maybe ofsuffi-

i cientmagnitudetoconstitutea riskof electricshock

to persons.

__IL Theexclamationpointwithinanequilateraltriangle

Is intendedto alert the user to the presence of

importantoperating and maintenance(servicing)
instructionsinthe literatureaccompanyingtheap-
pliance.

2

Before using this unit please read these operating instructions
carefully. Take special care to follow the warnings indicated on
the unit itself as well as the safety suggestions listed below.

Afterwards keep them handy for future reference.

Safety

1. Power Source -- The unit should be connected to power sup-

ply only of the type described in the operating instructions or
as marked on the unit.

2. Polarization -- If the unit is equipped with a polarized AC
power plug (a plug having one blade wider than the other),
that plug will fit into the AC outlet only one way. This is a safe-
ty feature. If you are unable to insert the plug fully into the
outlet, try reversing the plug. If the plug should still fall to fit,
contact your electrician to replace your obsolete outlet. Do
not defeat the safety purpose of the polarized plug.

3. Power Cord Protection -- AC power supply cords should be
routed so that they are not likely to be walked on or pinched

by items placed upon or against them. Never take hold of the
plug or cord if your hand is wet, and always grasp the plug
body when connecting or disconnecting it.

4. Nonuae Periods -- When the unit is not used, turn the power
off. When left unused for a long period of time, the unit should
be unplugged from the household AC outlet.

i

Installation

Environment

1. Outdoor Antenna Grounding -- If an outside antenna is con-
nected to the receiver, be sure the antenna system is ground-
ed so as to provide some protection against voltage surges
and built-up static charges. Section 810 of the National Elec-

trical Code, ANSI/NFPA No. 70-1990, provides information
with respect to proper grounding of the mast and supporting
structure, grounding of the lead-in wire to an antenna
discharge unit, size of grounding conductors, location of
antenna-discharge unit, connection to grounding electrodes,
and requirements for the grounding electrode. See figure
below.

LEAD IN
WIRE

ANTENNA

DISCHARGE UNIT

(NEC SECTION 810-20)

ORS

810-21)

POWER SERVICE GROUNDING
ELECTRODE SYSTEM

(NEC ART 250, PART H)

NEC- NATIONAL ELECTRICAL CODE

2. Water and Moisture --Do not use this unit near water-for ex-

ample, near a bathtub, washbowl, swimming pool, or the like.
Damp basements should also be avoided.

3. Heat -- The unit should be situated away from heat sources
such as radiators and the like.

It also should not be placed in temperatures less than 5°C

(41 ° F)or greater than 35°C (95° F).

Placement

1. Ventilation --The unit should be situated so that its location
or position does not interfere with its proper ventilation. Allow
10 cm (4") clearance from the rear of the unit.

2. Foreign Material -, Care should be taken so that objects do
not fall into and liquids are not spilled into the unit. Do not sub-

ject this unit to excessive smoke, dust, mechanical vibration,

or shock.

3. Magnetism -- The unit should be situated away from equip-
ment or devices that generate strong magnetism,

4. Stacking -- Do not place heavy objects, other than system
components, on top of the unit.

5. Surface -- Place the unit on a flat, level surface.

6. Carts and Stands -- The unit should be used only with a cart
or stand that is recommended by the

manufacturer. The unit and cart combination
should be moved with care.
Quick stops, excessive force, and uneven
surfaces may cause the unit and cart com-
bination to overturn.

7. Wall or Ceiling Mounting -- The unit should not be mounted

to a wall or ceiling, unless specified in this operating instruc-
tions.

Maintenance

Clean the cabinet, panel and controls with a soft cloth lightly

moistened with mild detergent solution.

Donot use anytypeof abrasivepad,scouringpowderor solvent

suchas alcoholor benzine.

Service

1. Damage Requiring Service -- The unit should be serviced by
qualified service personnel when:
(a) The AC power supply cord or the plug has been damaged;

or

(b) Objects have fallen or liquid has been spilled into the unit;

or

(c) The unit has been exposed to rain; or
(d) The unit does not appear to operate normally or exhibits a

marked change in performance; or

(e) The unit has been dropped, or the enclosure damaged.

2. Servicing -- The user should not attempt to service the unit
beyond that described in the operating instructions. All other
servicing should be referred to qualified service personnel.

3

4

Listening caution

@

Selecting fine audio equipment such as the unit you've just pur-

chased is only the start of your musical enjoyment. Now it's time
to consider how you can maximize the fun and excitement your
equipment offers. This manufacturer and the Electronic In-
dustries Association's Consumer Electronics Group want you to
get the most out of your equipment by playing it at a safe level.
One that lets the sound come through loud and clear without an-

noying blaring or distortion-and, most importantly, without affec-
ting your sensitive hearing.

We recommend you to avoid prolonged exposure to excessive

noise.

Sound can be deceiving. Over time your hearing "comfort level"
adapts to higher volumes of sound. So what sounds "normal"
can actually be loud and harmful to your hearing.
Guard against this by setting your equipment at a safe level

BEFORE your hearing adapts.
To establish a safe level:

• Start your volume control at a low setting.

• Slowly increase the sound until you can hear it comfortably and
clearly, and without distortion.

Once you have established a comfortable sound level:

• Set the dial and leave it there.

Taking a minute to do this now will help to prevent hearing
damage or loss in the future. After all, we want you listening for a
lifetime.

Please check and identify the supplied
accessories

O AC supply cord 1 pc.

power
(For USA: SJA172-A or SJA172-1)
(For Canada: SJA172-A or SJA172)

O AM loop antenna set (RSA0010)

• AM loop antenna ........................ 1 pc.

• AM loop antenna holder .................. 1 pc.

• Screw .................................. 1 pc.

FM indoor antenna (RSAO006) ............... 1 pc.

0

Remotecontroltransmitter.................. 1 pc.

For SA.GX4901 For SA-GX7901GX690
GX3901GX290
(RAK-SA164WH) (RAK-SA603MH)

For detailson remote control transmitter opera-

tion, refer to "How to use the remote control

transmitter"inthe separatebooklet.

O Batteries (UM-4, "AAA", R03) ............... 2 pcs.

J

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No. Name Re£. page

Power switch (POWER) 12
Tuning control (TUNING) 14

Band select button (BAND) 14
FM mode select button

(FM AUTOIMONO) 14

Direct tuning button

(DIRECT TUNING) 14

Helplreset button (.HELP -RESET) 13,22
Numeric buttons (1-0, >10) 14,16
Remote control signal receptor
Display
Memory button (MEMORY) 15,16
Bass control (BASS) 13
Treble control (TREBLE) 13

1_ Volume control (VOLUME) 12

Headphone jack (PHONES) 13

_ I _;Ti_'Y;][elt;f_l I//tlKq._IITIlt;q_ l_lll

Speaker select buttons (SPEAKERS) 10,12

I'tTdl_l_]It_ilrd_II]IltN *'I_l

__ O};f_DMtI.(.'_DI;]_ I

11;1"i._',.N£etP:_IeTI4riK4PJ_I

Speaker ONIOFF button (SPEAKERS) 12

Input select buttons 12,19,21,22

_ i IISTdl.'__,I[I_;4_KIIIII}:qC_IITII};4_III

Surround ONIOFF button
(SURROUND) 17",18,19

:l;1"m=f-_:#'_I01IO:( ,_]

lsTi." f__Nlel:4r4_10KO:(,_]

DOLBY PRO LOGICISFC OFF ON button

(OFFION) 19,20

No. Name

3 stereo ONIOFF button
(3 STEREO)

Ref. page

1_1&19

@
®
@

®

@

@

DOLBY PRO LOGIC mode select button
(PRO LOGIC) 17,18,19
Theater effect ONIOFF button
(THEATER EFFECT) I_
SFC mode select button (SFC)

Test signal ONIOFF button (TEST)
Tape monitor button

(TAPE MONITOR)
Center level adjust button (CENTER)
Surround level adjust button

(SURROUND)

Center mode select button
(CENTER MODE)

Delay time adjust button (DELAY TIME)

I I'_'i€ f *_1[0:4_ KIOIIIt}:I{_I IT|t]}If_l_lll

Muting button (MUTING)

19

20

18

12,21

18,20

18,20

17

19

13

Mutinglloudness button
(-MUTING - LOUDNESS)

Balance control (BALANCE)

VCR 2 front Input terminals (VCR 2)

VCR 2 input select button

(VCR 2 REARIFRONT)

13
13

13,21

13,21

5

Connecting audio equipment

Stereo connection cable (not included) ]
White (L)

Red (R) • •

I

Do not place books, etc., on top ofthis unitor block the heat

radiationvents in anyway.

CD changer (or CD player)

(not included)

L. J

Only for turntable
with ground terminal /

8

ONOL_ 0 _

"-; T

IGND

_3

@ CD

REC

IOUT)TAPE

/_ PLAY

(IN) :

@

@

@

Tape deck (not included)

REO(,N)f',ro oooo',,I,Dil

L_ -J

BBBBB

/-

q

TPUTp:I

_. Turntable

,/_" I(n°t included)

"_" "-" ,/

t___5

ACOUTLET

SA-GX490

For SA-GX3901GX290 For SA-GX7901GX690

_:: t'_ M " tmU ,=

] I ii)] Ib'1;llL'l_t I:1 IILtI_I{_J Irlll:f_i:{I l

"REMOTE CONTROL OUT" terminal

iD] I1" f!lltl_qCg lll{I}:f,_]

Tape deck

not included)

REMOTECONTROL

CD player
(or CD changer)
(not Included)

I REM0111:

f

i[o]m.-f±l[_'_Zvm:ImlAt't,_1.'1€1

Connection cables for remote control
(not included)

Connect the connection cable for remote control to a
Technics tape deck and/or CD changer (or CD player) which
has the appropriate remote control terminal as shown

above.
If a tape deck is not being used, the CD changer (or CD

player) can be connected directly (dotted line).

i[,] I-'I-'1_;f$I IllL1;q ,_1_

m

For a tape deck and/or CD changer(or CD player)with a
remotecontrolsensor,thisconnectionIsnot necessary.

l-_ "SWITCHED" AC outlet(s)

I ACOUTLETS I

Powerto these outlets Is controlled
by the power switch of this unit.
Audioequipmentrated up to the in-
dicated power ratings can be con-
nected here.

Cooling fan

The cooling fan operates at high
power output levels only.

Cooling fan

Connecting video equipment

Stereo connection cable (not included)

White (L)

Red (R)

Second VCR (for playback only)
(not included)

r"l _

o ,,I J'_

i i

oQ.O.QOo=O I--_- 1

AUDI_J_ OUTVIDEO

Video connection cable
(not included)

+

TV
(not included)

VIDEO
IN

:-'-71 I I1_

IANUDIDI {AUDIO VIDEO

lOUT OUT

rv

MONITOR

g__

VIDEO

IN

I.., ,°J v.

(not included)

----....

Speaker terminals

See pages 9-11.

cables

(not included)

ACOUTLET

ACIN_

I

I onnect this cord only (after all other cables

andcords are connected.

SA-GX490

AC power supply cord
(included)

/

Household AC outlet
(AC 120 V/60 Hz)

Connecting a video CD changer

JI1';11[."]_[_

;!;1"i." f;_ll):(,_IIl{If;,e It Zll|tl);_ltlllJ[It;,f_]

Connect the video CD changer to the "VCR 2NIDEO CD" ter-
minals.

J

O@

O,_

@ @

I_mo @®-_-@ ®

AUDIO

OUT

OUT

Video CD changer
(not included)

Connect the video CD changer to the "CD/VIDEO CD" terminals.

J

_oo@@@ I_ @

AUDIO

OUT

Video CD changer
(not included)

?

FM indoor antenna (i.clude_j

This antenna is normally sufficient for reception of FM broad-
casts.

FM Indoor antenna

(included)

_'", __.._Adhesive tape

(_) Pull off the plastic on the tip of

the antenna wire.

(_) Twist the wire and connect as

shown at the left.

__ _ _YJOBBfBB_

Twist

Attach to a wall (using a tape) facing Inthe direction of best recep-
tion.

For best reception sound quality

An FM outdoor antenna is recommended.
Disconnect the antenna if an FM outdoor antenna is installed.

FM outdoor antenna (rot ineJu_ed)

The outdoor antenna should be used when using the main unit in
mountainous areas or in spaces enclosed by reinforced concrete

where the FM indoor antenna (included) does not provide
satisfactory reception.

FM outdoor antenna

(not included)

75 £1coaxial

(notincluded)

(_ Remove a piece of the outer

vinyl insulator.

20 mm (25132")

(_) Twist the shield braid to

expose the core wire.

,,,.. Core wire

Shie_l braid 10/_mm(3/8")

_) Connect the shield braid and thq

core wire as shown at the left.

L. ...J

W

An outdoor antenna should be Installed by a qualified technician

only.

AM loop antenna (i.cl.de )

This antenna is normally sufficient for reception of AM broad-
casts.

(included)

[

/

AM ANT

AM LOOPANT

k..._.__.___.J

Install the AM loop antenna holder (Included) at the rear panel of

this unit and then attach the AM loop antenna to the AM loop
antenna holder (facing in the direction of best reception).

tab into

the hole and then
push the holder

of this unit

AM loop antenna holder
(included)

Pay attention to the following points when mounting the
antenna.

• Do not mount it horizontally (Doing so will impair reception).

• Do not mount it close to power cords, speaker wires or metal

surfaces (Doing so will result in noise).

• Do not mount it close to a tape deck. When the tape deck is be-
ing used, chirping or beeping sounds may result.

When mounting the antenna to a column, a wall
or rack

Mount it vertically.

loopantennaholder

(included)

Screw(included)