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•

' "7,' °":

4,',' ''_ " '.':" " ,,',,

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

[ 13tTil_" f_IIl'}:f# IlYIlt:(,'_ll !

I DOLB¥ _ -MUTING

g g

]

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)

AM outdoor antenna ( ot i,,ol., em

The outdoor antenna should be used when using the main unit in
mountainous areas or in spaces enclosed by reinforced concrete
where the AM loop antenna (included) does not provide satisfac-
tory reception.

/

AM AI_

AM LOOPANT

t.

AM outdoor antenna

(not included)

V _ loop antenna

inyl-covered wire AM

(not included) (included)

Stretch 5-12 m (16-40 ft.) of vinyl-coveredwtrehorizontally

across a windowframe or other convenientlocation,keepingit

as highas possiblefrom the ground.

When the unit is not in use, disconnect the outdoor antenna to
prevent possible damage that may be caused by lightning. Never

use an outdoor antenna during an electrical storm.

Be sure to connect the AM loop antenna even when an outdoor

antenna is used.

Placement of speakers

As well as enjoying normal stereo reproduction with the left and

right front speakers, a center speaker and surround speakers
can also be connected to the main unit in order to enjoy the
sound performance of Dolby Pro Logic Systems and the SFC

function.

The illustration below shows where to place the speakers so as to
best enjoy sound with Dolby Pro Logic systems and the SFC func-

tion.
We recommend that surround speakers be placed on the side of
or slightly behind the listener, and about one meter higher than

ear level.
However the position should be adjusted to your personal

preference, because the effect varies to some degree depending
upon the type of music and the music source.

Front speaker
(not included)
(Left)

Front speaker

(not Included)

t.. o_ L_......._

Center speaker
(not included) -_ Subwoofer

(not included)

Surround speaker
(not included)
(Left)

Surround speaker
(not included)

(Right)

•_ The subwoofer can be placed in any position.

9

Connection of front speakers

To connect to the "A" terminals

To connect to the "B" terminals

Right speaker
(not included)

Left speaker
(not included)

For connection to a second pair of speakers.

Right speaker Left speaker
(not included) (not included)

®® GO

(not included)

This unit

(not included)

This unit

F

1 15ram 2

H

3

®

I I

®

To prevent damage to circuitry,
never short-circuit positive (+) and
negative (-) speaker wires.

Speaker cables
(not included)_

SURROUND

qY qJ

Right speaker

(not included)

®®

2_'

Left speaker
(not included)

®®

I

_r/ti_7.=,__ ._l_lIT[_]

÷

I I

q_ q_

CENTER FRONT

This uv

SURROUND

®

I I

I Speakerimpedance

When only the "A" or only the "B" speakers are connected:

For SA-GX490 8

For SA-GX790/GX690 4-8

_ (SA-GX790/GX690 only)

If connecting speakers of less than 8 _, be sure to set the im-

pedance on the main unit to LOW as described below.

IPOWERONI

Hold down either button A or button B for 4 seconds or more.

(Hold down once again for 4 seconds or more to turn it off.)
Note that when this indicator is lit up, speakers A and B can-
not be used at the same time.

To change a speaker.
e.g. To use speaker B, press A and the [] indicator goes out,

_.press B to activate speaker B.

When both the "A" and the "B" speakers are connected

simultaneously: For SA-GX790/GX690/GX490 8

The impedance of any speaker used with this unit must be 8 _.

10

Connection of surround speakers Connection of center speaker

m

Before sound can be heard, the SURROUND mode or 3 STEREO
mode (of the Dolby Pro Logic system) must be on.

Right speaker Left speaker
(not included) (not included)

@® @®

FRONT

(not included)

This unit

®
@

I I

Center speaker
(not included)

CE_IER

N

This unit

:°: I

I I

Center speaker
(not included)

I

This unit

OE_ER FRONT

@

I I

• Speaker impedance

The impedance of any speaker used with this unit must be 8 Q,

Connection of subwoofer

_]r'..1[.et[fl_IIIL _el_.'f,_IU[,] _ii

Rightspeaker Leftspeaker

(not included) (not included)

@® @®

__ _,Speaker cables

/ I_ (not included)

S_D_I I_ .___ _ ThIs unit

=, IIc,.,R,RO,,

ooo ®

®_ o o o _

m

1.

2.

Before sound can be heard, both surround speakers must be

connected.

Do not connect the surround speakers to the front speaker ter-
minals. The surround speakers may be damaged if connected

to the front terminals due to the output power difference bet-
ween the front and surround terminals.

• Speaker Impedance

The impedance of any speaker used with this unit must be 4-8 Q.

The subwoofer is connected when bass sounds are inadequately
reproduced because front speakers are too small.
When connected, the subwoofer can be placed in any position.

This unit has no amplifier section designed especially for the sub-
woofer, so it is necessary to purchase a subwoofer with a built in
amplifier or buy the two separately.

1Subwoofer with built-in

q_ Jamplifier (not included)

__ / Stereo connection cable

/

j_l(not included)

-- _ _ This unil

.o.. 0_..0_0II ®®_ ®®=CENTER FRONT

o.o

I I

Connecting a subwooFer which does not have
a built-in amplifier

Connect an optional amplifier to the "SUBWOOFER" terminals of
this unit and then connect a subwoofer to the speaker terminals
of the amplifier.

For your reference:

The level of sound output from the subwoofer will always be at
80 Hz or less, regardless of the settings of the speaker select but-
tons on this unit, thus the intensity of the low frequency range will
be maintained.

When adjusting the volume of the subwoofer

After setting the volume control on the subwoofer or on the
amplifier which is connected to the subwoofer, make any further
adjustments with the volume control on this unit.

11

1 2 3 5

I: I: I :i, I sl. , I. I,Io i=,ol w_l °

LJ ....i_J coJ- I-J]

PO fEn ITAPE MONITOR I VOLUME

• Before operation, set VOLUME to the "MIN" position.

• When viewing e video, turn on the power supply for the TV and

set the TV to video mode.

_ """._.,;i,;;.;,_,;;;.;i;,;; ...................

ASPEAKERSBPress A andlor B to select

(_O the speaker system(s) to be

used.

A and B refer to the speaker terminals

at the rear of the unit.

Caution
Beforeselectingyour
speakersystem,

makesure
impedanceiscorrect
in the speakersyou

want to use.
(See page 10.)

QUARTZLm

DO

O U.

1

Lights up

I

I m

If the button Is pressed once more, the
indicator will switch off and no sound
will be heard from the speakers.

1;_!." f__lO:f¢ _IIIIO:_P_I

SPEAKERS

Press SPEAKERS and check
the "ON" Indication lights

up.

LIL-/. I =, =n=

I

Lights Up

If the button Is pressed once more, the

indicator will switch off and no sound
will be heard from the speakers.

___P;_,; to,;,i;cith.de,;Jr,;+

source.

Button

Source SA.GXOg01GX4901

SA.GXT90

GX3901GX290

Video tapes (VCR 1) VCR 1 VCR 1
Video tapes (VCR 2) VCR 2/VIDEO CD VCR 2
Video CD VCR 2NIDEO CD CD/VIDEO CD

TAPE MONITOR TAPE MONITOR

Tape The tape monitor indicator will light

up.

Compact discs CD CD/VIDEO CD

Radio broadcasts TUNER TUNER
Phono discs PHONO PHONO

The selected video source is output from the
"TV (MONITOR OUT)" terminal on the back of the unit.

OUARTZ LOCK

OTEREO

g_M I-) I-) I

C.I l--.._l. I ..,

1

Video source

'"Si:4'ti,';,_,_ir,,ci'",_;_'i.................

(Refer to the appropriate operating instructions for
details.)

"" om' VOLUME io ad}usi the;v0i,melevel.

After listening Is finished
Be sure to reduce the volume level, and switch the power to the
standby condition by pressing POWER.

12

When the tape monitor Indicator Is lit or flashing

This indicates that the tape monitor function of this unit is ON.
To listen to sources other than a tape, be sure to press
]TAPE MONITOR I and check the indicator goes out.

Lit or flashing

IT ,. _I

- HELP

(3

--RESET

TREBLE BASS

Input select buttons Q Q VOLUME

J -.,

--- o JEt--,=.....=._o _-2

: (A, B) MUTING BALANCE

_ Headphones [_

(not included) Q

Plug type:
1/4 inch phone plug
stereo type

VCR 2
REAR/FRONT

?

VCR 2 front

Input terminals

If sound output stops during use or

if you are unsure what to do

- HELP

Press -H ELP. (Touchonly.)

The help function can be used to display opera-
tions you are expected to do.

For details, see page 22.

To adjust the sound balance

BALANCE

Turn BALANCE to adjust the

O sound balance.

leftlrlght

To emphasize low frequency sound

To adjust the tone quality

TREBLE

(3

Turn TREBLE to adjust the high fre-
quency sound.

BASS

©

Turn BASS to adjust the low fre-
quency sound.

-MUTING

--LOUDNESS

Press -LOUDNESS until the

"LOUDNESS" lights up.

/-) I") i

n I--I, I ..,

Lights up

To return to the previous condition, hold down
the button until the "LOUDNESS" indication
turns off.

To mute the sound level

ffmK__._e___lOte_ _glt_.',._I,

MUTING

Press MUTING.

1";i!." f__l[eFfMIIlll}:( ._llllel!if_ L_I_

I;lil." f__l£w;(€_Iff/w;!*,i_]

i31rib-fi__lt);4r_ I Iltlt;(._]

m.

-MUTING

--LOUDNESS

Press -MUTING. (Touchonly.)

I

The message "MUTING ON NOW" runs
repeatedly from right to left across the display

as long as the muting function is on.

Press once again to return to the previous
volumelevel.

To listen through headphones

Use VOLUME to reduce the volume level, and
connect the headphones.

If you do not want sound from the speakers, press SPEAKERS (A)
and (B) and check the speaker select indicators go out.

If you do not want sound from the speakers, press SPEAKERS
and check the "ON" indication goes out.

Avoid listening for prolongedperiodsof time to prevent hearing
damage.

To switch the VCR to the front or

rear "VCR 2" terminal =.-__,eo:qr.I,=,],,,,.

1. Press VCR 2 (Input select button).

2. Press VCR 2 REARIFRONT.

(Either "REAR" and "FRONT" will appear on the display end will
change each time you press the button.)

13

m

m

14

Direct access tuning

Specify the frequency using the numeric buttons to directly tune
to the desired broadcast station.

J

c o _=_,,_ ,"','r".,"_._"=_ r=':!

FM AUTO/ 3

MONO

\

,.,,.,...._J "

1 4

_ _ Pr_;,;Tu.E"I.................

'

_";,.;__._p...;Di.ia_÷ui_i_ia2 .....

Flashes

While cursor display is flashing
(approx. 10 seconds)

numeric buttons to enter the

_ frequency.

Tuning Intervals
FM: 0.1 MHz

AM: 10 kHz

If the desired FM frequency Is 107.9 MHz

q

Lights up when tuned

I

If the frequency has been input correctly, the
displayed frequency will blink once.

1. If no button Is pressed while the cursor display Is flashing, the

display will return to the frequency which is currently being
received. To re-specify the frequency, repeat the procedure
from step 3.

2. If the frequency has not been input correctly, "ERROR" in-

dication will be displayed. In this case, re-enter the frequency.

Sequential tuning

If the frequency is not known, use the tuning buttons to search for
it.

f \

] _-J"

t 3 1

_ ' _" Press' TIJNERI .................

'v";u.;,;G'"2"'Pr;" '_orXto'i,;n;iOihe

I j desired broadcast.

Tuning Intervals
FM: 0.2 MHz

AM: 10 kHz

If either button is held down for an ins-
tant until the frequency begins to
scroll, the broadcast stations can be
tuned in automatically when a broad-

cast station is found.

Tuningmay stop automaticallyif any

jammingis encountered.

When the FM stereo broadcast Is received

This unit will automatically switch to FM stereo reception and the

"STEREO" indication will light up.

mO

{ _t ,w.

Lights up when a stereo broadcast is tuned in

If noise is excessive In the FM stereo mode

Press FM AUTOIMONO. (The FM stereo indicator will switch off.)

The broadcast will be monaural, but noise will be reduced. If the
button is pressed once more, the stereo mode will be resumed.

Preset tuning

By presetting the desired broadcast stations into the memory
channels of this unit, broadcast stations can be selected simply
by pressing numeric button(s). (Refer to page 16 for tuning.)

-Before presetting

How many broadcast stations can be preset?

A total of 30 FM and AM stations can be preset.

How Is presetting done?

The two following methods are available.

(_ Automatic memory presetting

Automatic memory presetting allows this unit to
automatically search for broadcast stations and then
preset them into memory.
With this function, searching proceeds from the frequency
currently being displayed and continues through higher fre-

quencies, (up to 107.9 MHz for FM, up to 1710 kHz for AM)

and broadcast stations are preset in the order in which
they are located.
With this method, the channels that can be preset into the

memory are set as follows for different bands (FM or AM).

Channel

--

ForFMbroadcast stations ...................... 1-30

For AM broadcast stations ..................... 21-30

If the FM stations (channels I - 30) are preset end then
the AM stations (channels 21-30) are preset

Because this unit can accommodate a total of 30 preset
channels, the settings for FM channels 21-30 will be
replaced by the AM settings which were subsequently

preset, and the channel allotment will be as shown below.

Channel

I_ FM _ _ AM-_ 1

For FM broadcast stations ...................... 1-20

For AM broadcast stations ..................... 21-30

Manual memory presetting

The desired broadcast stations can be preset Into the
desired channels by the user.
This can also be used as a method for changing selected
broadcast stations that were preset in "Automatic

memory presetting".

Please remember this

If a new broadcast station is preset into a channel, the setting
for the broadcast station which was previously entered in that
channel will be automatically erased.

Automatic memory presetting

f \

_L-' I.... I-'=-! - I-" I -_1'

2

which you want to start
automatic memory preset-

ting. (See page 14.)

quency begins to change.

L \ (Automatic memory presetting will

start.)

During automatic memory presetting,

the memory indicator will flash while
the frequency scrolls.

Flashes

I'-/I-_ t

I-I F/, I ..,

I

To stop, press MEMORY once again.

When a broadcast station Is preset

The memory indicator and the preset channel number will be
displayed for approximately 1 second.

I® I L n

Lights up

J

When presettlng Is completed

The last broadcast station to be preset will be displayed.

Frequencies may not be preset correctly in cases where the

broadcast waves are too strong or too weak. In such cases, carry

out presetting manually.

15

m

16

Preset tuning (continued)
Manual memory presetting

/

(i r

]

i o i, i = i.,o|.

_"1_.11 .... I-.I - I-I"

FM AUTOIMONO _

\

=Q-

seiioti ed..,r.dbroadca;L............

(See page 14.)

If interference or static Is keeping you from enjoying

an FM broadcast, press FM AUTO/MONO and
change to monaurual. You can preset the memory in

monaurual just as in stereo.

--_" I==_°°'<_ I

L / I-, _ntl7 f')

"_1® 'uI'.-' -

Lights up

To cancel the memory function, press

MEMORY again.

..... to be preset using the

numeric button(s) (com-
pletes presetting).

To designate channels 1-9
Press the appropriate (1-9) preset-tuning button.
To designate channels 10-30
(Example: Channel 12)

(_3D )(ZED ) (23E_

(within 10 sec.) (within 10 sec.)

I-- ,,1_ _

L /IX

I-- El I_1,.

L I I lit "

Off Preset channel

® f:!:3

Once completed step 3, the display

reverts back to step 1.

To continue presetting

Repeat steps 1 through 3.

To listen to preset broadcast stations

r_o oo_ _.,._-,_ ,._ (:::)-

• _ I

1

using the numeric button(s).

To designate channels 1-9

Press the appropriate (1-9) preset-tuning button.

To designate channels 10-30
(Example: Channel 12)

>C£D )(23£23

(within 10 sec.) (within 10 sec,)

I I-- I I\1/

® L I-'//T\ -

I-- H I xl_.,,

I._ Ill x

Preset channel

I I- I I II_1

m L f_ tL

After the preset channel is displayed,
the frequency of the selected channel
is displayed.

I

To confirm the channel number of the broadcast
station being received

Press TUNER.
(The channel number will be displayed for about one second.)

The channel number is not displayed if you change the reception
frequency or FM mode setting.

For your reference

Even if the power is switched to standby or the power cord is
disconnected from the household AC outlet, the memory will re-

tain its contents for approximately one month.

If frequency presettings are accidentally erased

Make the presettings once again.
The power cord should remain connected for one hour or more
for the memory back-up to be effective.

Bycombiningfront,centerandsurroundspeakers,youcanenjoy

the SURROUND mode which conveys a feeling of presence or
the 3 STEREO mode which conveys a feeling of orientation.

SURROUND

By reproducing the feeling of depth and movement of sound,

video software or compact discs recorded with Dolby Surround

provide the listener with a feeling of presence like that of a movie

theater.

Also, to enjoy • theater like sound with all the emotion of

Dolby Pro Logic and a full stereo effect, this stereo comes
with a THEATER EFFECT function which spreads out the
sound as actually happens at the theater.

To enjoy SURROUND, be sure to connect the surround speakers.

Front Front
speaker (L) TV/.__._ speaker (R)

. . _ Center

_I \_speaker_/

Surround Surround

spe_(il) ((ip _]r (R)

3 STEREO

You can enjoy audiolvisual sources with clear sound, more

presence and a good feeling of orientation. 3 STEREO can be us-
ed with non DOLBY SURROUND recordings.

To enjoy 3 STEREO, be sure to connect the center speaker.

Front Center Front

speaker (L) speaker speaker (R)

Surround
speaker (L)

Surround

speaker (R)

Manufactured under license from Dolby Laboratories Licens-
ing Corporation. Additionally licensed under Canadian patent

number 1,037,877.

"Dolby", "Pro Logic" and the double-D symbol are

trademarks of Dolby Laboratories Licensing Corporation.

Setting the center mode

For Dolby Pro Logic systems, center mode setting is necessary
to play back bass sounds effectively.
Set the center mode in accordance with the size of your center
speaker.

I....... _(L, I....n.-.-_= _-i,J- Jj1'

oo=p .....o- 1

'I .... I'

o o

I 2

'"._-k.,._,L,;,;.._,_L,_,;,,;,;_,,;:...................

I SURROUNDI Press SURROUND or

-: 3 STEREO to turn on the

desired mode.

or

Pressing the same button again turns

off the activated listening mode.

DOLBY

--PRO LOGIC -

Press PRO LOGIC to turn on

the Dolby Pro Logic systems
and select the desired

mode.

When the button Is pressed, the cur-

rent mode is displayed.
Pressing it again changes the Dolby
Pro Logic mode.

For SURROUND mode For 3 STEREO mode

Lights up Lights up

";;?""/';;""i E"TEiR""MciiiE"iO

I I select the correct center
' _-_ ' mode.

\/ I- ---

/ n nt') n_ nn

Inn I II LI l-r i l

When the button is pressed, the current center mode
is displayed.
Pressing it again changes the center mode.

NORM (NORMAL)
When the center speaker is smeller than the front
speakers
WIDE (WIDEBAN D)
When the center speaker is the same or larger size as
the front speakers

PHAN (PHANTOM)
When no center speaker is connected.

Bm._

In the PHANTOM mode, the sound which would have
been sent to the center speaker will be divided equal-

ly between both the left and right front speakers. J "dr

jr_v_

• _, . • o e_[_l_

El

18

Adjusting speaker output level

In order to reproduce the movement of the sound and its clear
orientation, it is important to adjust the output level of each
speaker. Adjust output to the correct levels while listening to the
test signal.

TEST

................ ,_-', JQ

1235 4

TEST

T

1

_'_Jo_

_,--,IT°,J;_.:L__'c_

JJ "

4

]"'; s;_i_.s"."".;_4_:,,;;:;,ii,;;,;;:;_I,;_:.,_.i,i.....

or

SPEAKEFI_

Press SPEAKERS and check
the "ON" Indication lights

up.

I/I-I-I I

II I_ I'T I _.,

1

Lights up

";;:;_..,7;,_,i,,_.;,;1_,;,_.,;;;;,;;,,.,_;...................

I suRRou.oi Press SURROUND or

3 STEREO to turn on the

_ desired mode.

or

Pressing the same button again turns

off the activated listening mode.

OOLSV Press PRO LOGIC to turn on

--PRO LOGIC --

[ j the Dolby Pro Logic systems

and select the desired
mode.

......;_s;......Pr.,,_,_i_S_iooui;;ui;,t.,t

I = l signal"

"-'h'_R-"I "_

\ _ I T_-_- T

_J i® I I- "-/ I vc._

The test signal is emitted in the follow-

ing order:

For SURROUND mode

Front speaker-_, Center speaker
(left)1" [

Surround speakers *----Front speaker
(left, right) (right)

The test signal is not emitted from the
center speaker when the center mode

is on PHANTOM.

For 3 STEREO mode

Front speaker _ Center speaker

(left) ,__

--.Front speaker (right)

_" :_o_" "'+.m'"voL0MEio.; "the

volume level normally used

_ for enjoying the

source.

....cE"_E"......Pr.*_,CENTERii0;(+i0r

J - J +j- + SURROUND(-)or(+)toad.

just the output level

_,,,,,__balance.

SURROUND Adjust the output level of each

L,_ peaker from the listening position un-

til they are all identical.

I_: Decrease the output level.
F-F-I: Increase the output level.

® ÷3- .=

Output level canlbe varied within a
range of - 12 dB to + 12 dB according
to that output from the front speakers.

i

[

1. The test signal is output only by the

speaker you are now adjusting and
does not repeat the sequence until
adjustments are complete.

2. Remember you cannot adjust out-
put level of the surround speakers
if you selected the 3 stereo mode
in step 2.

TEST

To stop the test signal

J Press TEST.

Adjusting the delay time

_:/:1[ _e]):trJ_ZolLON,_IOEo],ns!

_[.1_1_, -,,,,Jmh'lk'llJ:| _llll _lltl*]nz s!
Adjust the sound from the surround speakers until the proper ef-
fect is produced.
The diagram below shows SA-GX790.

f

!......!_l/

1 2

;PROIOGIC-II the Dolby Pro Logic systems

I, _ and select the SURROUND

_ mode.

[_" ;._;;.-.....P;..OeLA_iTi,EtO..ito

I _ I the suitable time.

__="= When the button is pressed, the cur-

L \ rent delay time is displayed, pressing

it again changes the delay time.

Lights up

i1--.*

m I --I ,,,
Each time the button is pressed, the

delay time will increase by 5 ms.
To calculate the delay time, refer to
the calculation methods below.
The standard setting is 20 ms.

Front Center Front
speaker (L) speaker speaker (R)

J.

D): Distance from front speakers
D2: Distance from surround speakers

• If D1 Is equal to or less than D=

Set to 15 ms.

• If D= Is less than D1
Start at 15 ms and increase by 5 ms

for every 5 feet of difference bet-
ween D1 and D2.

Enjoying with SURROUND or
3 STEREO

1 2

OFFION THEATER EFFECT

I'

....._-:.. :_;....................

SURROUND I Press SURROUND or

' _' 3 STEREO to turn on the

_ desired mode.

or

I 3 STEREO I Pressing the same button again turns

_x_ off the activated listening mode.

DOLBY Press PRO LOGIC to turn on

--PRO LOGIC -

[ I the Dolby Pro Logic systems

and select the desired

_ mode.

................St;;.th.d,;,Imd,,_;.,_e.....

m

When employing SURROUND, use

software recorded in Dolby Surround.

[

OFF,ON To turn off the Dolby

I systems

Press OFF/ON.

Press once again to turn it on.

Pro Logic

To enjoy THEATER EFFECT

UsevideosoftwarerecordedInDolbysurround.

The THEATER EFFECT works only when the surround mode Is
ON.

THEATER EFFECT

Select the surround mode with the
above procedure, and then press

THEATER EFFECT.

Lights up

Pressonce againto turn it off.

19

2O

The SFC function gives presence and spread thereby enhancing
and enriching the music or movie.
The diagram shows SA-GX790.

to Io,I--I .....I-L,-j_

T;_,%'--,_,=..:,-,_..,==--_-_ O- $_%

I

OFF/ON 1 2

.......;c......Pv.,;.si;€totu'r,;'on'ti,,;

SFC function and select the

L__ desired mode.

(_ \ When the button is pressed, the cur-

rent mode is displayed.
Pressing it again changes the SFC
mode.

vc.21 SIMULATED , THEATER

HALL

This mode imparts a reflection and spread which will make you
feet as if you are in a large concert hall.

LIVE

Primarily for vocal pieces, this mode adds gloss to the vocals and
you'll feel as though you were hearing a live stage performance.

THEATER

You can clearly perceive the directions and source of the movie.

Real ambience of sound can also be recreated naturally using
this mode.
THEATER mode can be used with stereo sources not encoded
with DOLBY SURROUND.

When using Dolby surround encoded source materials, select
the DOLBY PRO LOGIC SURROUND.

SIMULATED

Choose this mode if little or no sound will be heard from the sur-

round speakers.
You can feel as if you were in a more expanded space adding to
the actual sound from the source.
This mode also adds effect to monaural sources by outputttng the
sound from surround speakers.

You can adjust center speaker volume only in the theater mode.
The center speaker is not used in the hall, and simulated modes.

L

................Si_;ti.; _i,;;;l_a;,o_;c......

OFFION

To turn off the SFC function

Press OFFION.
Press once again to turn it on.

Adjusting field of sound

With this unit,you can adjustspeakervolume andselect delay
time.Adjustthe field of soundwhile listeningtoa source.

To adjust center speaker volume

CENTER

[illll l[:,]ll I l 1:,]_,| 1:,]IIII I [lie [:,][l] i I I

L_ Press CENTER (-) or (+).

To adjust surround speaker volume

SURROUND

Press SURROUND (-) or (+).

: Decrease the output level.
: Increase the output level.

. ::

÷3"

I

Output levels can be varied within a range of

-12 dB to +12 dB according to that output

from the front speakers.

To adjust the delay time

DELAY TIME

Press DELAY TIME to set to the
suitable time.

When the button is pressed, the current delay

time is displayed, pressing it again changes
the delay time.

As the time displayincreases, the feeling of
the soundbecomeswider.

Recording on the tape deck

Before recording, prepare the tape deck for recording (recording
level adjustment, etc.).
See the tape deck's operating instructions for details.

Recording on the VCR (VCR 1)

Before recording, prepare the VCR (VCR1) for recording (recor-

ding level adjustment, input selector setting, etc.).

See the VCR's operating instructions for details.

ITAPE MONITOR I

Recording from VCR 2

/

.....ia;....,,;a,;;,;id;;o

[._.J __-- source to be recorded. _l"°"°;°'_'--_;":;e_1

Camcorder _

(not included)

There are VCR 2 terminals on both the front and rear of this unit.

It is easier to carry out dubbing from a camcorder if it is con-

[ 1_" ....1---'_'_- _=_Q nected to the front terminals.

f_-r-;-r;-r%'-r,

................ Begin recordingl ..............

Follow your tape deck's operating in-

structions.

source to be recorded.

I_ ___ Press VCR2,VIDE_oC01 .....

To check the sound recorded while a recording
Is being made

With a tape deck with 3 head system, ft Is possible to check the
sound recorded on the tape.

Press ]TAPE MONITOR] on this unit and set the monitor button
on the tape deck to "TAPE".

Lit

I

,,R

Ft f-i t

I--II7. I ,,,

Press [TAPE MONITOR] once again to turn it off.

L_ Press VCR 2.I/FO D

u LllL

i-2-_.....v;.;......Pres,,vc"26_A"_i_i6'+

REA_FRONT to select the VCR for

_ playback.

................B;o"n_,_;,r=;,g;" ih;v€R

1 and playback the tape on

the VCR 2.

Follow your VCR's operating instruc-
tions.

11

For your reference

If a video CD changer isconnected to the "VCR 2/VIDEO CD" ter-
minals, recording from the video CD changer is possible by follow-
ing the above procedure.

21

Recording on the VCR (VCR 1)

Recording from an audio source

Recording from the tape deck is not possible.

1

_ S.i.ctt,. ;.d,o;o.rc;tobe recorded.

If you make a mistake in operation or if sound output stops due to

some operation which was performed, the HELP function
displays information which can be useful for indicating the

method by which this condition can be remedied.
If "ERROR" or scrolling characters (for instance, "TAPE
MONITOR ON NOW") appears on the display during operation,

carry out the following operation.

- HELP

(D

--RESET

f \

....!...........]_

_ _"_'-_s,_ .... "_0-

- HELP

Press -HELP. (Touchonly.)

The method for remedying this situation will be
displayed,

................ o.i..vc"

Follow your VCR's operating instruc-
tions.

For your reference

If the above button is pressed for 2 second or more until
"RESET" appears on the display, the operation settings for the
unit will be initialized to the settings made at the time of ship-
ment.
However, any broadcasting stations which have been preset into
memory will not be erased at this time.

................_,gi.ii_,;,;.aio;Ourc;toberecorded.

For your reference

If a video CD changer is connected to the "CDNIDEO CD" ter-
minals, you can record a picture from the video CD changer by
following the above procedure.

Precautions in recording a audio source

If not recording the picture from VCR2 or a video CD player,
either turn the unit OFF or select VCRI.
The unit is set such that video signals input at video input ter-
minals "VCR2" and "VIDEO CD" are output from the "VCR1" vi-
deo output terminal on the back of the stereo.

Therefore, when recording an audio source, if the VCR2 source

or video CD player is playing, the picture will be recorded through
VCR1.

The On-Screen Display function can provide a wide range of infor-
mation on a TV screen making the operation even easier. For ex-

ample, by using the amplifier button(s), the state of each setting
will display. If there is no sound and you do not understand the
operation, press the HELP button to use the unit diagram
displayed on the TV to display the applicable method.
Refer to the included supplemental instruction manual for details
on the On-Screen Display functions.

Product service

Do not attempt to remove the cover(s) or repair the unit

yourself.

Refer servicing to qualified personnel only.

Product information

For product service, product information or assistance in pro-
duct operation, refer to the servicenter directory.

22

Before requesting service for this unit, check the chart below for

a possible cause of the problem you are experiencing. Some sim-
ple checks or a minor adjustment on your part may eliminate 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.
(In U.S.A. consult MSC Authorized Servicenters for detailed In-
structions.)

Problem Probable cause(s) I Suggested remedy

While listening to FM broadcasts

An unusual hissing noise is
heard when listening to the
broadcast in stereo, but not
heard when listening
monaurally.
Noise Is excessive In both
stereo and monaural broad-
casts.
The FM stereo indicator or
the quartz lock Indicator
flickers, without completely
Illuminating.
Excessive distortion in the
sound of stereo broad-

casts.

A slight noise may be heard because the method
used for modulation of FM stereo broadcasts is
different than that used for monaural broadcasts.

Poorlocationand/ordirectionof the antenna

Transmittingstationis too far away.

Poor locationandlor direction of the antenna

TransmittingstationIs too far away.

Nearbybuildingormountain

• Try reducing the treble sound by using the treble con-

trol.

• Try changing the location, height andlor direction of
the antenna.

• If an indoor antenna is being used, change to an
outdoor antenna.

• Try using an antenna with more elements.

• Try changingthe location, heightandlordirectionof
the antenna.

• If an Indoor antenna Is beingused, changeto an
outdoorantenna.

• Try usingan antenna with more elements.

While listening to AM broadcasts

An unusual "beat" sound Is
heard.

A low.pitched =hum" sound
Is heard when the

broadcast is tuned.
A strange hissing noise Is

produced continuously or
Intermittently.

The unit isbeingused at the same time as the
televisionset.

Interferencefrom adjacentbroadcastsignals

The AM loop antenna connection wires are too
close to the power cord.

Causedbythe "discharge phenomenon"and the
"oscillation phenomenon"ofelectric appliances
(suchas fluorescent lights,TV, smallseries-type
motors,rectificationequipment,etc.).

• Turn off the television set, or use this unitfarther

awayfrom it.

• Tryreducingthetreble soundbyusingthetreblecon-

trol.

• Place the antenna connectionwires and the power

cord farther apart.

• Tryplacingthis unitfarther away from sucheClulp-

ment.

Problems noted at all times

Power will not switch ON. The power cord plug is not completely inserted.

No sound Is heard.

Sound stops during a
performance, or no sound
Is heard when the power Is
switched ON.
(The word "OVERLOAD"
appears on the display.)

The word "ERROR"
appears on the display.

BothA and B speakersare turndOFF.

The tape monitorfunction isON.
The muting function is ON.
Connectionsare incompleteor Incorrect to the

speaker systems,etc.
The Incorrectinputselector has beenpressed.

The protectioncircuitryhas functionedbecause
the positiveandnegative speakerconnection
wiresare "shorted". Speakersystemswithan

impedanceless than the indicatedrated
impedanceof thisunitare usedor under severe
use,suchas loudvolume,excessivepowerand In

an excessivelyhotenvironment.
When the DolbyPro Logic systemis ON, bothA

and B speakersare turnd ON.

When both A and Bspeakersare being used

simultaneously,the DolbyPro LogicsystemIs

turned ON.

• Confirmthatthe powercord plug is connected
completely.

• Pressthe HELPbutton. (Thedisplay will scroll
throughthe causesof the problem.)Use thisdisplay

as a guideto remedythe problem.

• Check to be sure that all connectionwires are

correctlyconnected.

• Checkto be sure that the correct selector Is
pressed.

• Switchoff the power,and after determiningand
correctingthe cause, switch ON the power once
again.

• Use a speakersystemofthe properImpedance

rating.

• Press the HELP button.
(The display will scroll through the causes of the pro-
blem.)

Use this display as a guide to remedy the problem.

23

• AMPLIFIER SECTION

Rated minimum sine wave
RMS power output

20 Hz-20 kHz both channels
driven

0.05%

tion

total harmonic distor-

[SA-GX790]

120 W per channel (8 Q)

[SA-GX690/GX490]

100 W per channel (8 Q)

40 Hz-20 kHz both channels
driven

0.8% total harmonic distortion

[SA-GX390/GX290]

70 W per channel (8 £_)

1 kilt €ontinuous power output

both channels driven

0.05% total harmonic distortion

[SA-GX790] 125 W per channel (8 _)

[SA-GX6901GX490] 105 W per channel (8 _)

1 kHz continuous power output

both channels driven

0.8% total harmonic distortion

[SA-GX390/GX290] 73 W per channel (8 Q)

Total harmonic distortion

rated power at 20 Hz-20 kHz

[SA-GX790/GX6901GX490] 0.05 % (8 Q)

rated power at 40 Hz-20 kHz

[SA-GX3901GX290] 0.8% (8 Q)

half power at 1 kHz

[SA-GX790/GXG90/GX490] 0.03 % (8 Q)

[SA-GX390/GX290] 0.07 % (8 Q)

Power output at the Dolby Pro Logic
operation 0.8% st 1 kHz,

Front [SA-GX790/GX690] 2 x 100 W (8

[SA-GX490] 2 x 80 W (8

[SA-GX3901GX290] 2 x 50 W (8

Center [SA-GX7901GX690] 100 W (8

[SA-GX490] 80 W (8

[SA-GX390/GX290] 50 W (8

Surround [SA-GX7901GX690] 100 W (8

[SA-GX490] 80 W (8

[SA-GX390/GX290] 50 W (8

Low frequency damping factor 30 (8
Load Impedance

Front [SA-GX3901GX290] 8

A or B [SA-GX790/GX690] 4-8

[SA-GX490] 8

A and B[SA-GX790/GX6901GX490] 8

Center 8
Surround 4- 8

Dynamic headroom

[SA-GX790/GX690/GX490] 2 dB (8

SMPTE Intermodulatlon distortion

0.3% (8

Frequency response

PHONe RIAA standard curve :1:0.8 dB
CDNIDEO CO, VCR 1, VCR 2, TAPE

[SA-GX790] 7 Hz-70 kHz, +3 dB

CD, VCR 1, VCR 2/VIDEO CD, TAPE

[SA-GX6901GX490] 7 Hz-70 kHz, ±3 dB

[SA-GX390/GX290] 10 Hz-70 kHz, ±3 dB

Input sensitivity

PHONe 0.4 mV (3 mV, IHF'66)
CDNIDEO CD, VCR 1, VCR 2, TAPE

[SA-GX790] 27 mV (200 mV, IHF'66)

CD, VCR 1, VCR 2/VIDEO CD, TAPE

[SA-GX6901GX 4901GX3901GX290 ]

27 mV (200 mV, IHF'66)

SIN (IHF A)

PHONe [SA-GX7901GX6901GX490]

70 dB (80 dB, IHF'66)

[SA-GX390/GX290]

70 dB (78 dB, IHF'66)

CD/VIDEO CD, VCR 1, VCR 2, TAPE

[SA-GX790] 75 dB (85 dB, IHF'66)

CD, VCR 1, VCR 2NIDEO CD, TAPE

[SA-GX690/GX490]

75 dB (85 dB, IHF'66)

[SA-GX3901GX290]

75 dB (83 dB, IHF'66)

Input Impedance

PHONe 47 k_
CDNIDEO CD, VCR 1, VCR 2, TAPE

[SA-GX790] 22 kQ

CD, VCR 1, VCR 2/VIDEO CD, TAPE

[SA-GX6901GX490/GX3901GX290] 22 kQ

Tone controls

BASS 50 Hz, + 10 to - 10 dB
TREBLE 20 kHz, +10 to -10 dB

Loudness control (volume at -30 dB)

[SA-GX7901GX690] 50 Hz, +9 dB

D) • FM TUNER SECTION

Q) Frequency range 87.9-107.9 MHz
Q) Sensitivity 11.2 dBf (2 gV, IHF '58)
O) 50 dB quieting sensitivity
_) MONO 18.3 dBf (4.5 IJIV,IHF '58)

Q) STEREO 38.3 dBf (45 IJV, IHF '58)
Q) Total harmonic distortion
£2) MONO 0.2%
Q) STEREO 0.3%

Q) S/N

MONO 75 dB
Q STEREO 70 dB
Q Frequency response

20 Hz-15 kHz, +1 dB, -2 dB

Q Alternate channel selectivity 65 dB
Q Capture ratio 1 dB
Q Image rejection at 98 MHz 45 dB

IF rejection at 98 MHz 80 dB

_)

Spudous response rejection at 98 MHz

75 dB

AM suppression 50 dB
Stereo separation

1 kHz 40 dB

10 kHz 30 dB

Carder leak

19 kHz -35 dB

38 kHz -50 dB

Antenna terminal(s) 75 Q (unbalanced)

• AM TUNER SECTION
;Frequency range 530-1710 kHz
Sensitivity 20 IJV, 330 pV/m
Selectivity 55 dB

image rejection at 1000 kHz 40 dB
IF rejection at 1000 kHz 60 dB

• VIDEO SECTION
Output voltage at I V input

(unbalanced)

Msxlmum Input voltage

1±0.1 Vp-p

1.5 Vp-p

• GENERAL
Power consumption

[SA-GX790] 290 W, 370 VA

(In standby condition: 2W)

[SA-GX690] 280 W, 365 VA

(In standby condition: 2W)

=[SA-GX490] 255 W, 330 VA

(In standby condition: 2W)

[SA-GX3901GX290] 225 W, 290 VA

(In standby condition: 2W)

Power supply AC 120 V, 60 Hz
Dimensions (W x H x D)

[SA-GX7901GX690] 430 x 158 x 352 mm

(16-15116" x 6-7/32" x 13-27132" )

[SA-GX490IGX3901GX290]

430 × 136 x 352 mm

(16-15116" x5-11132" x 13-27/32")

Weight [SA-GX7901GX690] 9.8 kg (21.6 lb.)

[SA-GX490] 8.6 kg (19 lb.)

[SA-GX390/GX290] 7.6 kg (16.8 lb.)

Notes:

1. Specifications are subject to change

without notice. Weight and dimensions

are approximate.

2. Total harmonic distortion is measured by
the digital spectrum analyzer.

Mataushlta Consumer Electronics
Company, Division of Matsushlta

Electric Corporation of America
One Panasonic Way Secaucus,
New Jersey 07094

Printed in Japan

Psnasonlc Sales Company,
Division of Matsushlta Electdc of

Puerto Rico, inc. ("PSC")

Ave. 65 de Infanteda. Km. 9.5
San Gabriel Industrial Park, Carolina,
Puerto Rico 00985

Matsushlts Electric of
Canada Limited
5770 Ambler Drive, Mississauga,
Ontario L4W 2T3

RQT2753-P

H1194C0