Sony STR-GX49ES User Manual
3-755-038-21(2)
FMStem/FM-AM
Receiver
Operating Instructions
STR-GX49ES
1992 by Sony Corporation
WARNING
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
■ DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
This symbol is intended to alert the user to
the presence of uninsulated "dangerous
voltage" within the product's enclosure that
may be of sufficient magnitude to constitute
a risk of electric shock to persons.
This symbol in intended to alert the user to
the presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.
INFORMATION
This equipment generates and uses radio frequency
energy and if not installed and used properly, that is, in
strict accordance with the manufacturer's instructions, may
cause interference to radio and television reception. It has
been type tested and found to comply with the limits for a
Class B computing device in accordance with the
specifications in Subpart J of Part 15 of FCC Rules, which
are designed to provide reasonable protection against
such interference in a residential installation. However,
there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause
interference to radio or teievision reception, which can be
determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or
more of the following measures:
Reorient the receiving antenna
Relocate the equipment with respect to the receiver
Move the equipment away from the receiver
Plug the equipment into a different outlet so that
equipment and receiver are on different branch circuits,
if necessary, the user should consult the dealer or an
experienced radio/television technician for additional
suggestions. The user may find the following booklet
prepared by the Federal Communications Commission
helpful:
“How to identify and Resolve Radio-TV Interference
Problems". This booklet is available from the U.S.
Government Printing Office, Washington, DC 20402, Stock
No. 004-000-00345-4.
Note to CATV system installer
This reminder is provided to oall the CATV system
installer's attention to Article 820-40 of the NEC that
provides guidelines for proper grounding and, in
particular, specifies that the cable ground shall be
connected to the grounding system of the building, as
close to the point of cable entry as practical.
Owner's Record
The model number is located on the rear exterior and serial
number is on the rear. Record the serial number in the
space provided below. Refer to these numbers whenever
you call upon your Sony dealer regarding this product.
Model No. STR-GX49ES Serial No.
For the customers in Canada
CAUTION :
--------------------------------
TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS
POLARIZED AC PLUG WITH AN EXTENSION CORD,
RECEPTACLE OR OTHER OUTLET UNLESS THE
BLADES CAN BE FULLY INSERTED TO PREVENT
BLADE EXPOSURE.
This apparatus complies with the Class B limits for radio
noise emissions set out in Radio Interference Regulations.
Introduction
Features
Precautions
Chapter 1 Getting Started
Installing
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Notes on installing
Installing batteries
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Changing the AM tuning interval.
Connecting the system
Notes on connection
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Connection diagram....,................
Connecting the AM antenna
Connecting the FM antenna
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Connecting the antenna ground .
Connecting speaker systems.......
Using AC outlets
Parts Identification
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Front panel...................................
Remote commander RM-S103....
Chapter 2 Using Your Receiver
Audio adjustment
Volume adjustment
Balance adjustment
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Sound quality adjustment.
Receiving FM/AM broadcasts..................................J
Tuning in an FM station automatically
— Automatic Tuning
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Tuning in an FM/AM station manually
— Manual Tuning
Memorizing a station
Tuning in a preset station
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Listening to program source other than broadcasts
Recording on an audio tape
Recording
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Tape dubbing.............................................................. 16
Recording on a VCR
Recording audio programs
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Chapter 3 Other Information
Troubleshooting
Specifications
Quick reference
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.Back
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cover
Precautions
The STR-GX49ES is a receiver which controis audio/video
sources. The unit aiiows you to switch easiiy among a
variety of audio/video programs.
Amplifier
• Optical Legato Linear A System allows the receiver to
operate automatically as a class A amplifier when the
level is low and as a class B amplifier when the level is
high without disturbing the sound signal. This minimizes
total harmonic distortion at every sound stage.
• These receivers have a spontaneous twin drive power
circuit. Condensers having large capacity are used
independently for the voltage amplification drive stage
of class A and power output stage of class B. Thus, a
stable output and high quality sound are obtained,
resulting in exclusion of power interferences.
The class A stage realizes a stable operation free from
interference of the power stage even when an
instantaneous or strong output is received.
• A source direct switch is employed to reproduce high
fidelity sound.
Any source can be reproduced without passing through
the circuits of tone control, loudness switch and balance
control.
Tuner
• Precise tuning is obtained thanks to the quartz-locked
digital synthesizer system.
• A total of 30 FM/AM stations can be preset in 3 memory
pages (A, B and C) that allow you to classify stations.
On safety
• Operate the unit only on 120 V AC, 60 Hz.
• Should any solid object or liquid fall into the cabinet,
unplug the unit and have it checked by qualified
personnel before operating it any further.
• Unplug the unit from the wall outlet if it is not to be used
for an extended period of time. To disconnect the cord,
pull it out by grasping the plug. Never pull the cord
itself.
• One blade of the plug is wider than the other for the
purpose of safety and will fit into the power outlet only
one way. if you are unable to Insert the plug fully Into the
outlet, contact your dealer.
On operation
• Before making program source connections, be sure to
turn the power switch off and unplug the unit.
• When the unit is not used, turn the power off. to
conserve energy and to extend the useful life of your
unit.
On cleaning the cabinet
Clean the cabinet, panel and controls with a soft cloth
lightly moistened with mild detergent solution. Do not use
any type of abrasive pad, scouring powder, or solvent such
as alcohol or benzine.
For the customers in the U.S.A.
For detailed safety precautions, see the “IMPORTANT
SAFEGUARDS’’ leaflet.
Remote commander
• The remote commander allows you to control most of
Sony’s audio equipment from a distance.
If you have any question or problem concerning your unit,
please consult your nearest Sony dealer.
■■
Ml)- f
Notes on Installatior^
To prevent internal heat buildup in the unit, j
place the unit in a location with adequate air circulation.
Do not install the unit: |
— near heat sources such as radiators or air ducts.
— in a place subject to direct sunlight, excessive dust,
mechanical vibration or shock.
Do not place anything on top of the cabinet.
The top ventilation holes must be unobstructed for the
proper operation of the unit and to prolong the life of its
components.
Installing Batteries
Before operating remote commander, install the batteries
as shown.
1
1 Open the cover.
Changing the AM tuning interval
The AM tuning interval is preset to 10 kHz. To use the
receiver where the frequency allocation system is based on
a 9 kHz interval, make the following adjustments.
I
1 Turn on the power and tune in any AM station.
2 Turn off the power.
3 Press POWER while pressing the “+" TUNING
button.
To reset the AM tuning interval, repeat the above steps.
Caution
When the interval is changed, all preset stations which you
have memorized will be erased. After changing the interval,
be sure to preset the stations again.
2 Insert two size AA (R6) batteries with correct
polarity.
Do not throw away the carton and packing material!
It will be an ideal container when transporting the system for
repair work, etc.
To avoid damage caused by battery leakage and corrosion
When the commander will not be used for a long time,
remove the batteries.
Normal operation can be expected about a half yejar using
Sony SUM-3 (NS), and a year using Sony AM-3 (NyV)
alkaline batteries. |
When the batteries are run down, the remote commander
will not operate the unit. In this case, replace batte'i-ies with
new ones.
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