Page 1
SONY
FM Stereo/FM-AM Receiver
STR-AV320/220
r,',r:>r-;TV fif Jiff
Operating Instructions
Before operating the unit, please read this manual thoroughly
and retain it for future reference.
liM Ui''L
nil. 8
3-751-607-22(1)
The STR-AV320/220 is a combined receiver and
audio/video control center.
You can listen to various audio/video program sources
through the amplifier or the receiver and the speakers
connected to it. Newly designed DBFB (Dynamic Bass Feed
Back) circuitry ensures natural sound quality even at a low
WARNING
To prevent fire or shock hazard, do not expose the unti to rain or moisture.
CAUnON
IMSK OF aECTMC SHOCK
I DOHOTOFBI I
CAUTKM: TO REDUCE THE RISK OF ElKTmC SHOCK.
DO HOT «nVE COVER (OR BACK).
NO USER-SERVICEABLE FRRTS IN8I0E.
REFER SERVKIIM TO QUAUFIED 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
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.
volume level.
Built-in matrix surround decodes ambient information in
stereo sources, providing a surround sound effect.
In the tuner section, a quartz locked digital synthesizer
system allows precise tuning. A total of 30 FM/AM stations
can be preset in 3 memory pages (A, B and C).
— Note to CATV system installer :
This reminder is provided to call the CATV system
installer’s attention to Article 820-22 oi 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 and serial numbers are located at the rear. Record
these numbers in the spaces provided below. Refer to these
numbers whenever you call upon your Sony dealer regarding
this product.
Model No..
WARNING
Battery may explode if mistreated. Do not recharge,
disassemble or dispose of in fire.
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.
-----------------------------------------------------------
------------------------------
Serial. No.
Sony Corporation ® 1990 Printed in Korea
Page 2
Troubleshooting
Problem
STEREO indicator flickers or does not light up when FM
stereo programs are received.
The figures in the display window do not stop at the desired
station during automatic tuning.
Stations cannot be tuned in correctly when the numeric
button is pressed.
Audio is not heard.
One channel does not transmit audio, or the volume from
the left and right speakers is unbalanced.
There is an abrupt loss of sound from one or both of the
speakers.
Sound transmitted from the speaker is reversed.
i— " ' '
Severe hum or noise is heard.
The: ^(protection) alarm appears in the display window.
The unit cannot be controlled by the Remote Commander
(STR-AV320 only).
Solution 1
• Check the FM antenna connection, and adjust the
antenna. [
. Press FM MODE to disengage the stereo mode.
• Check the antenna connection and adjust the antenna
direction.
• Tune in the station using the direct access tuning.
• Memorize the frequency correctly.
• Check the speaker and program source connections.
• Check that the appropriate function selector is depressed.
• Check that the appropriate SPEAKERS selector is
depressed. If the A and B selectors are both depressed, '
check that both speaker systems are properly connected, i
• Adjust the BALANCE control.
• Check the speaker connections.
• Turn off the receiver, and check the speaker terminals or
speaker cord for a short. 1
(This symptom may be caused when the protection circuit i
inside the unit activates.)
• Connect the speaker correctly.
• Use shielded connecting cords.
• Keep the audio components further away from the TV,
• Connect the ground wire to the ANTENNA ground
terminal.
• Clean any dirty plugs and jacks with a cloth lightly |
moistened with alcohol. |
• A serious trouble has occurred such as overheating or |
short-circuiting. Refer servicing to qualified person.
• Correctly point the head of the commander toward the unit.
If there is any object between the unit and the commander
head, remove it.
Page 3
[U POWER switch
Qj DIRECT TUNING button
CE Remote sensor (STR-AV320 only)
LU FM MODE button
When an FM stereo program is noisy or hard to receive,
press this button. The STEREO indicator goes out (the
sound is heard in monaural, but the reception will be
improved). To return to the stereo mode, press again or
change the frequency.
rS1 BAND selectors
ref Display window
[2j tuning +/- buttons
[E MEMORY button
rSI Numeric buttons
ffl SHIFT button
[U PRESET +/- buttons
Fl2l VOLUME control and indicator
The indicator is only equipped with the STR-AV320
331 SPEAKERS selectors
Depress to select which speaker system to drive. For
both speaker systems, depress A and B.
Remote Commander RM-S103 (STR-AV320 only)
Ji HEADPHONES jack (stereo phone jack)
3S TONE controls
Turn the TREBLE control to adjust the high frequency
sound. Turn BASS control to adjust the low frequency
sound.
BALANCE control
Turn clockwise to decrease the left channel volume, and
turn counterclockwise to decrease the right channel
volume.
TT) Function selectors
35) DBFB (Dynamic Bass Feed Back) button and Indicator
To reinforce the bass frequency sound, press this
button.
[191 MUTING button and indicator (STR-AV320 only)
Press to attenuate the sound level immediately (-20 dB
ATT). Pressing this button makes the indicator be
lighted. To restore the sound level, press again.
[gl SURROUND button and Indicator
To obtain the surround effect, press this button.
□j power button
m DBFB button
[E TUNER PRESET + /- and SHIFT
buttons
3] VOLUME +/- buttons
lE surround button
[E MUTING button
m CD player operation buttons
D. (disc) SKIP: When your CD player is
equipped with multi-disc changer, use this
button to select loaded disc.
CD ►: Selects the CD function and starts
CD playback.
ra1 DECK B operation buttons (also for
single tape deck)
DECK B ◄/►: Select tape function and
start tape playback on deck B.
ran DECK A operation buttons
DECK A ◄/►; Select tape function and
start tape playback on deck A.
33'Function select buttons.
Page 4
Connections
System Connections
Before connection, be sure to set the POWER switch to OFF.
Turntable system
Speaker system
Notes on system connection
• The red jacks of the receiver are for right-channel (R) connections
and the white jacks for left-channel (L).
• The cable connectors should be fully inserted into the jacks.
A loose connection may cause hum and noise.
Connecting FM Antenna
For normal use
Supplied wired antenna
Connecting AM Antenna
Supplied loop antenna
Adjust the direction
Notes on power source connection
• The plug of the AC power cord can only be inserted into a
polarized AC outlet.
• Do not connect an electrical home appliance such as an electric
iron, fan, TV, or other high-wattage equipment exceeding 100
watts in total power consumption to the AC OUTLET on the
receiver.
Connecting Antenna Ground
To prevent hum, connect the ground wire to ANTENNA
ground terminal (4,). When an outdoor antenna is
installed, be sure to connect the ground wire for
lightning protection.
Connecting Speakers
Speaker impedance and power capability
Use only the speakers having nominal impedance from 8 to
16 ohms, and rated at 50 watts (STR-AV320) or 40 watts
(STR-AV220) minimum RMS per channel with an 8-ohm load
from 40-20,000 Hz.
Page 5
Receiving FM/AM Broadcasts
How to receive a broadcast
J When you know the frequency
I When you do not know the frequency
' Tuning in a preset frequency
Direct Access Tuning
See Direct Access Tuning.
FM: See Automatic Tuning. AM: See Manual Tuning.
1 See Preset Tuning. |
1 Press TUNER.
2 Select FM or AM.
3 Press TUNING DIRECT.
4 Press the appropriate numeric buttons to enter
the frequency. (See examples below).
5 Adjust the volume.
For entering AM frequencies, you need not enter the last “0".
Correcting the entered frequency
Repeat the above steps from the beginning.
If the frequency figures flash in the display window
The entered number is outside the receiver’s frequency range (FM 87.5
to 108 MHz; AM 530 to 1,710 kHz). Enter the correct frequency.
Preset Tuning
Memorizing a Station
A total of 30 FM/AM stations can be memorized in any desired sequence.
Tuning in a Preset Station
1 Press TUNER.
2 Press SHIFT to select memory page (A, B or C).
3 Press the preset numeric button.
4 Adjust the volume.
Example 1: FM 108.00 MHz Example 2: AM 1350 kHz
1 Tune in the desired station. (See "Automatic Tuning",
"Manual Tuning" or "Direct Access Tuning".)
2 Press SHIFT to select the memory page (A, B or C).
The memory pages (A, B and C) can be classified
accroding to the music category, station band, etc,
3 Press MEMORY.
MEMORY indicator appears for a few seconds.
4 Press the desired numeric button (1 to 0), while the
MEMORY indicator is displayed.
Repeat above steps for presetting other desired stations.
Replacing a preset station
Preset another station on the number of the station to be
replaced. The previously preset station will be erased.
Method В I
1 Press TUNER.
2 Press “+” or PRESET.
Each time you press “ +" (or " —the preset station of
the next higher (or lower) number is tuned in.
A1 • > AO
CO ^B1► Cl ^
• If you keep pressing “ + (or "-"), preset stations are
successively tuned in in the increasing (or decreasing)
order of number. Release the button when the desired
preset station is tuned in.
• BO
3 Adjust the volume.
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Listening to Program Sources Other than Broadcasts
1 Select the program source.
Phono record
Compact disc or auxiliary
program sources
Video programs VIDEO
Tape programs TAPE
2 Start the program.
3 Adjust the volume.
Recording on an Audio Tape
Recording
1 Select the desired program source.
For an FM/AM broadcast, tune in the desired station.
2 Set the tape deck in the recording mode.
3 Start the desired program source.
Note on recording
The settings of the VOLUME and TONE controls do not
have any effect on recording.
Tape Dubbing
I POWER-ON [
CD 0 dD
to VIDEO
AUDIO IN
Tape deck 2 Tape deck 1
(tor playback)
to TAPE REC OUT
(for recordinq)
3,4
1 Insert the recorded tape into tape deck 2 and a blank
tape Into tape deck 1.
2 Press VIDEO.
3 Adjust the recording level of tape deck 1.
4 Start the playback of tape deck 2 and set the tape
deck 1 in the recording mode.
Dubbing will start.
Function
PHONO
CD
Page 7
Automatic Tuning (for FM reception)
23 14
Se ect SPEAKERS A or B.
Manual Tuning (for AM reception)
! I
POWER-ON 23 14
XZI
___________
mi
¥ ® dD ®
Select SPEAKERS A or B.
Quickly tuning in a roughly known frequency
Example: The station between AM 700 and AM 800 kHz.
.1 1
Li*
1 Press TUNER.
2 Select FM.
3 Press‘ +"or "-"TUNING.
“ + Starts frequency-ascending sweep.
—Starts frequency-descending sweep.
When a station is received, automatic tuning stops
automatically. To change the station, press “-I-” or'
again.
4 Adjust the volume.
When sweeping does not stop at the desired station
The signal strength is weak. Tune in the station as described
in “Direct Access Tuning."
1 Press TUNER.
2 Select AM.
3 Press •' + '■ or " - ’■ TUNING.
Each time “ + ’’ or “ - " is pressed, the frequency will
change by 10 kHz. To change the frequency
continuously, keep the button pressed.
I 4 Adjust the volume.
Precautions
On Safety
• Operate the unit only on 120 V AC. 60 Hz.
• Should any solid object or liquid fall into the unit, unplug it
• 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 ot 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 installation
• Do not install the unit in a location near heat sources such
as radiators or air ducts, or in a place subject to direit
sunlight, excessive dust, mechanical vibration or shock.
• Good air circulation is essential to prevent internal heat
build-up in the unit. Place the unit in a location with
adequate air circulation. Do not place the unit on a soft
surface, such as a rug that would block the ventilation
holes on the bottom.
Loading the Remote Commander with Batteries
• 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.
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.
On repacking
Do not throw away the carton and the packing material. It
makes an ideal container to transport the unit in.
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.
Battery life
About half a year of normal operation can be expected when
using the Sony SUM-3 (NS) batteries.
Caution
When the commander is not to be used for a long period of
time, remove the batteries to avoid damage caused by
battery leakage and corrosion.
Page 8
Specifications
Audio Power Specifications
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 8-ohm load, both channels driven, from
40-20,000 Hz, rated 50 watts (STR-AV320) or
40 watts (STR-AV220) per channel minimum
RMS power, with no more than 0,8% total
harmonic distortion from 250 milliwatts to
rated output.
Other Specifications
Amplifier section
Continuous RMS power output (8 ohms, at t kH2 less than 0,8% total
harmonic distortion)
Dynamic power ,
Harmonic distortion
Frequency response
PHONO 2.5 mV
CO
VIDEO
TAPE
Outputs
1 REC OUT, VIDEO (AUDIO) OUT Voltage 150 mV 1
1
SPEAKER A, B Accepts speakers of
I HEADPHONES Accepts low and high impedance j
STR-AV320 65 watts - 65 watts
STfl-AV220 50 watts - 50 watts
________
Sensitivity
Impedance
j 50 kilohms
150 mV 1 50 kilohms
4 ohms 18 ohms
60 W -r 60 W i 55 W 55 W
, 75 W 75 W
S/N (weighting network, input
level)
74 dB
72dB'(A, 2.5 mV)
r
--------------------------------------------95 dB
80 d8'(A. 150 mV)
Impedance 10 kilohms
8-16 ohms ;
headphones i
• 78 IHF
BASS: tttOdBat too Hz
TREBLE: 3:10 dS at tO kHz
-20 dS
-12dBat 70 Hz
Tuning range
Antenna terminals 300 ohms, balanced,
Sensitivity at 50 dB
quieting
Usable sensitivity
Signal-to-noise
ratio
Harmonic
distortion
Selectivity 60 dB at 400 kHz
Separation 45 dB at 1 kHz
Frequency
response
Qerteral
System
Power requirements
Power consumption
Weight
Accessories supplied
1
Design and specifications subject to change without notice.
FM tuner Mctton AM tuner iecMen
87 5- 108 MHz
75 ohms, unbalanced
18.3 dBf, 4 5 mV (mono) ■ 1
38.3 dBf. 45 mV (stereo)
11.2 dBf, 2m-V(ihF) Loop antenna. !
76 dB (mono)
70 dB (stereo)
0 2% (mono), 0 4%
(stereo) at i kHz
30 Hz-15 kHz pdB
Tuner section: PLL quartz-locked digital
synthesizer system
Preamplifier section: low-noise NF type
equalizer amp
Power amplifier section:
quasi-complementary SEPP
120 VAC. 60 Hz
U.S.A. model: 100 watts (STR-AV320)
Canadian model: 160 watts (STR-AV320)
In standby condition: 5 watts (STR-AV320 only)
One switched |100 watts)
Approx. 430 T 110 < 295 mm(w/h/d)
(17 » 4 V-« T 11 Viinches)
including projecting parts and controls
Approx. 5.2 kg (11 tbs 7 oz) net (STR-AV220)
Approx. 6.2 kg (13 lbs 11 oz) net (STR-AV320)
Remote Commander RM-S103 (1)
(STR-AV320 only)
Sony batteries SUM 3(NS) (2) (STR-AV320 only)
FM wired antenna (1)
AM loop antenna (i)
530- 1,710kHz
' External antenna terminal j
i SOOM^iat 1.000 kHz)
64 dB (at 50 mV/m)
' 0.3% (at 50mV/m,
400 Hz)
40 dB at 10 kHz ■
90 watts (STR-AV220)
140 watts (STR-AV220)
—
—
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