Sony STR-AV770X User Manual
FMSteiw/FM-AM
Receiver
3-753-197-21 (3) Tf,i A
Operating Instructions
STR-AV770X
1991 by Sony Corporation
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Warning
WARNING
To prevent fire or shock hazard, do not expose the
unit to rain or moisture.
CAUTION
RISK O F ELEC TRIC S HOCK
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 is intended to alert the user to
the presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.
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.
Note to CATV system installer
This reminder is provided to call the CATV system
installer's attention to Article 820-22 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^ Serial No.
Table of Contents
Outline......................................................................................................................................4
Precautions...............................................................................................................................4
installing....................................................................................................................................5
Connections..............................................................................................................................6
Getting Started
Parts identification....................................................................................................................10
Audio adjustment.....................................................................................................................12
Selecting a program source....................................................................................................13
Basic operation
Radio reception.......................................................................................................................14
Notes on installation............................................................................................................5
Loading the remote commander with batteries.................................................................... 5
Notes on connections..........................................................................................................6
Connecting audio equipment.............................................................................................. 6
Connecting video equipment...............................................................................................7
Connecting the FM antenna................................................................................................8
Connecting the AM antenna................................................................................................8
Connecting the antenna ground..........................................................................................8
Connecting speaker systems..............................................................................................9
Connecting the AC power................................................................................................... 9
Front panel........................................................................................................................10
Remote commander RM-S103
Adjusting volume................................................................................................................12
Adjusting tone quality......................................................................................................... 12
Adjusting left and right sound balance
Reinforcing the bass...........................................................................................................12
Selecting the speaker system............................................................................................ 12
Labeling the program sources............................................................................................13
Tuning in a station directly — Direct tuning..........................................................................14
Scanning stations automatically — Auto tuning
Presetting stations — Station preset
Tuning in a preset station — Preset tuning.......................................................................... 17
Labeling the preset stations — Index input
Selecting a station among the preset stations having the index name
— Index tuning................................................................................................................. 19
Receiving FM simulcast TV programs...............................................................................19
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Appendix
Quick Reference
Audio recording........................................................................................................................20
Recording on an audio tape deck or DAT deck..................................................................20
Tape dubbing.................................................................................................................... 20
Video recording........................................................................................................................21
Video tape editing.............................................................................................................21
Adding new sound on a video tape during video editing...................................................21
Obtaining the surround effect..................................................................................................22
Available types of effects...................................................................................................22
Adjusting the input level for Dolby surround system
Listening with surround effect........................................................................................... 22
Specifications..........................................................................................................................23
Troubleshooting guide............................................................................................................. 24
Quick reference........................................................................................................................26
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The STR-AV770X is a FM Stereo/FM-AM receiver and
audio/video control center.
You can enjoy various audio/video program sources with
this unit.
TV/video programs
• You can enjoy TV or CATV programs with FM simulcast.
• Sounds from various audio program sources can be
added on video tapes during editing.
Tuner
• Precise tuning is ensured by a quartz lock digital
synthesizer.
• Station Index system allows you to tune into a station
quickly.
Remote control
• The supplied remote commander allows you to remotely
control both the unit and the equipment connected to
the unit.
Precautions
Display
• The frequency of each tuned-in broadcast station is
displayed.
• The current selection/operation is displayed to clearly
indicate what is taking place.
Surround sound system
This unit incorporates all of 3 types of surround effect.
• nniooLBYsuiiRouNol * — expands sound just like listening
to it in a movie theater.
• Hall Surround-provides reverberation effect that is
produced in a large concert hall.
• Simulated Surround-gives the feeling of width and
thickness to monaural sound of old movie program, etc.
On safety
• Before operating the unit, be sure that the operating
voltage of your unit is identical with that of your local
power supply.
• Should any solid object or liquid fali 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.
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.
If you have any question or problem concerning your unit,
please consult your nearest Sony dealer.
Manufactured under license from Dolby Laboratories Licensing
Corporation. Additionally licensed under one or more of the
following patents; U.S. numbers 3,632,886, 3,746,792, and
3,959,590. Canadian numbers 1,004,603 and 1,037,877.
“DOLBY" and the double-D symbol CE are trademarks of Dolby
Laboratories Licensing Corporation.
Installing
Notes on Installation
To prevent internal heat buildup in the unit,
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.
Do not throw away the carton and packing material!
It will be an ideal container when transporting the system for repair work, etc.
Loading the Remote Commander with Batteries
Before operating remote commander, install the batteries as shown.
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To avoid damage caused by battery leakage and
corrosion
When the commander will not be used for a long time,
remove the batteries.
Battery life
Normal operation can be expected about a half year using
Sony SUM-3 (NS), and a year using Sony AM-3 (NW)
alkaline batteries.
When the batteries are run down, the remote commander
will not operate the unit. In this case, replace batteries with
new ones.
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.
1 Turn on the power and tune in any AM station.
2 Turn off the power.
3 Press the POWER button while pressing the “+"
PRESET 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.
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Connections
Notes on Connections
Do not connect the power cord to an AC outlet nor
press the POWER switch before accomplishing all other
connections.
The cable connectors should be fully Inserted into the
jacks. Loose connection may cause hum and noise.
Connecting Audio Equipment
Jacks and plugs of the connecting cord are colorcoded as follows;
Red jacks and plugs: For the right channel of audio
signals
White jacks and plugs: For the left channel of audio
signals
Yellow jacks and plugs: For video signals
O Speaker system
6
Connecting Video Equipment
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® Connecting the FM Antenna
Connecting the Antenna Ground
To prevent hum, connect the ground wire to ANTENNA
ground terminal ( At).
When an outdoor antenna is installed, be sure to connect
the ground wire for lightning protection.
Connecting the AM Antenna
■
qp
Adjust the
direction.
Supplied loop
antenna
For areas with difficult AM reception
In areas with troubled reception, connect a 6 to 15-meter
(20 to 50-foot) insulated wire to the AM antenna terminal.
Extend this out of doors if possible, keeping the greater
portion horizontal.
(There is no need to disconnect the supplied antenna.)
To prevent hum
Connect the ground wire to ANTENNA ground terminal {A-).
When an outdoor antenna is installed, be sure to connect
the ground wire for lightning protection.
8
Connecting Speaker Systems
Surround
speaker (R)
Speaker impedance and power capability
This receiver is designed to work best with speakers having nominal impedance from 8 to 16 ohms. Be sure to use a speaker system with
adequate nominal impedance and power handling capabilities.
@ Connecting the AC Power
Caution
Be careful that the total power consumption of each equipment connected to the outlets on the receiver does not exceed 120 watts.
Do not connect electrical home appliances such as an electric iron, fan, TV, or other high-wattage equipment to these outlets.
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