Sony STR-AV320 User manual

SONY.
FM Stereo/FM-AM Receiver
3-751-607-22 (1)
STR-AV320/220
Operating Instructions
Before operating the unit, please read this manual thoroughly
and retain it for future reference.
The STR-AV320/220 is a combined receiver and
audio/video contro! center.
You can tisten 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
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).
To prevent fire or shock hazard, do not
expose the unti to rain or moisture.
CAUTION
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
00 WOT REMOVE COVER (OR BACK).
NO UGER-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 apptiance.
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 shalt 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. Serial. 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.
Sony Corporation © 1990 Printed in Korea

BE colble)(=\arere)iiare]
Problem
| Solution
STEREO indicator flickers or does not light up when FM
' stereo programs are received.
: « Check the FM antenna connection, and adjust the
antenna.
«Press FM MODE to disengage the stereo mode.
The figures in the display window do not stop at the desired
station during automatic tuning.
« Check the antenna connection and adjust the antenna
direction.
« Tune in the station using the direct access tuning.
Stations cannot be tuned in correctly when the numeric
button is pressed.
« Memorize the frequency correctly.
Audio is not heard. ”
« 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 8 selectors are both depressed,
| check that both speaker systems are properly connected.
' One channel does not transmit audio, or the volume from
the left and right speakers is unbalanced.
» «Adjust the BALANCE control.
' «Check the speaker connections.
There is an abrupt Joss of sound from one or both of the
; speakers.
. ¢ Turn off the receiver, and check the speaker terminals or
speaker cord for a short.
(This symptom may be caused when the protection circuit
inside the unit activates.)
' Sound transmitted from the speaker is reversed.
« Connect the speaker correctly.
- pe
; Severe hum or noise is heard.
; e 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.
The ‘P| (protection) alarm appears in the display window.
eA serious trouble has occurred such as overheating or
short-circuiting. Refer servicing to qualified person.
The unit cannot be controlled by the Remote Commander
» (STR-AV320 only).
« Correctly point the head of the commander toward the unit.
If there is any object between the unit and the commander
head, remove it.

| Movers|(oaW- ln (eM mUlaleii(e)ameym @re)alice) (sy
(13) (14) [15
15 POWER switch
(2; DIRECT TUNING button
[3] Remote sensor (STR-AV320 only)
(4) 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.
(5) BAND selectors
(6) Display window
(7 TUNING +/— buttons
[8] MEMORY button
(9) Numeric buttons
410) SHIFT button
iil PRESET +/— buttons
(iZ] VOLUME control and indicator
43)
The indicator is only equipped with the STR-AV320
SPEAKERS selectors
Depress to select which speaker system to drive. For
both speaker systems, depress A and B.
14) HEADPHONES jack (stereo phone jack)
5) TONE controls
Turn the TREBLE control to adjust the high frequency
sound. Turn BASS control to adjust the low frequency
sound.
[{16] BALANCE control
Turn clockwise to decrease the left channel volume, and
turn counterclockwise to decrease the right channel
volume.
4Z Function selectors
18] DBFB (Dynamic Bass Feed Back) button and indicator
To reinforce the bass frequency sound, press this
button.
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.
SURROUND button and indicator
To obtain the surround effect, press this button.
Remote Commander RM-S103 (STR-AV320 only)
(1) POWER button
(2) DBFB button
[3] TUNER PRESET +/-— and SHIFT
4
21 buttons
“3) (4 VOLUME +/— buttons
[5] SURROUND button
[6] MUTING button
[4]
[7] 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.
[8] DECK B operation buttons (also for
single tape deck)
DECK B <@/B: Select tape function and
start tape playback on deck B.
(9) DECK A operation buttons
DECK A <@/®: Select tape function and
start tape playback on deck A.
'{0]-Function select buttons.

Connections
System Connections
Before connection, be sure to set the POWER switch to OFF.
FM antenna
AM antenna
_)
Turntable system
Speaker system
to a walt outlet Right Lett
Receiver
RP
CD player
LINE IN
LINE OUT to a wail outlet
LINE OUT
®DODDO®D:
® ® @'® ¢
Tape deck
AC OUTLET
AUDIO
LINE
OUT
to
a
wail
outlet
:
AUDIO
LINE
IN
;
to a wall outlet
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 For higher quality sound
Supplied wired antenna
| \ vt Ar |
|
|
| 75-ohm coaxial cable
(optional)
ae
Connecting AM Antenna
Supplied joop 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 (}. When an outdoor antenna is
installed, be sure to connect the ground wire for
lightning protection.
a Speakers
Left Speaker
|
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.

Receiving FM/AM Broadcasts
How to receive a broadcast
'
When
you
know
the
frequency
See
Direct
Access
Tuning.
|
When
you
do
not
know
the
frequency
FM:
See
Automatic
Tuning.
AM:
See
Manual
Tuning.
'
Tuning
in
a
preset
frequency
See
Preset
Tuning.
Direct Access 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.
Select SPEAKERS A or B.
!
Example 1: FM 108.00 MHz
Exampie 2: AM 1350 kHz
For entering AM frequencies, you need not enter the last “0”
Correcting the entered trequency
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.
tTiLita ry
Le oe a Ae
Memorizing a Station
A
total
of
30
FM/AM
stations
can
be
memorized
in
any
desired
sequence.
“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.
(
3
4
2
|
1
Tune
in
the
desired
station.
(See
“Automatic
Tuning",
4 Press the desired numeric button (1 to 0), while the H
MEMORY indicator is displayed.
ap Repeat above steps for presetting other desired stations.
Select SPEAKERS A or B.
Replacing a preset station
Preset another station on the number of the station to be
replaced. The previously preset station will be erased.
Tuning in a Preset Station
Method 8
Method A |
1 Press TUNER.
2 Press SHIFT to select memory page (A, B or C).
3 Press the preset numeric button.
4 Adjust the volume.
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.
= +
Al +> AQ «<——-—> B1<-~+ BO
“1
+ tf 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.
3 Adjust the volume.
> como + I

Listening to Program Sources Other than Broadcasts
Tape deck
Tumtable system
T
{ 1 Select the program source.
| Function
; Phono record PHONO
; Compact disc or auxiliary cp
program sources
| Video programs | VIDEO
|. Tape programs : TAPE
2 start the program.
3 Adjust the volume.
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
4
POWER > ON
to VIDEO
AUDIO IN
Tape deck 2
(tor playback)
2
to TAPE REC OUT
Tape deck 1 3 4
(tor recording) 5
Tape Dubbing
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.

Automatic Tuning (for FM reception)
1 Press TUNER.
2 3 1 4 2 anes iy
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 “+” of “—
again.
4 Adjust the volume.
Select SPEAKERS A or B.
i
When sweeping does not stop at the desired station
The signal strength is weak. Tune in the station as described
in “Direct Access Tuning.”
Manual Tuning (for AM reception)
1 Press TUNER.
| 2 3 1 4 2 select AM.
i | 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.
4 Adjust the volume.
Select SPEAKERS A or B. |
Quickly tuning in a roughly known frequency
Example: The station between AM 700 and AM 800 kHz.
Precautions
On
Safety
«
Do
not
place
anything
on
top
of
the
cabinet.
The
top
«
Operate
the
unit
only
on
120
V
AC,
60
Hz.
ventilation
holes
must
be
unobstructed
for
the
proper
«
Should
any
solid
object
or
liquid
fall
into
the
unit,
unplug
it
operation
of
the
unit
and
to prolong
the
life
of
its
-
and
have
it
checked
by
qualified
personnel
betore
components.
operating
it
any
further.
«
Unplug
the
unit
from the
wall
outlet
if
it
is
not
to
be
used
for
On
cleaning
the
cabinet
an
extended
period
of
time.
To
disconnect
the
cord,
pull
it
Clean
the
cabinet,
panel
and
controls
with
a
soft
cloth
lightly
out
by
grasping
the
plug.
Never
pull
the
cord
itself.
moistened
with
mild
detergent
solution.
Do
not
use
any
type
«
One
blade
of
the
plug
is
wider
than
the
other
for
the
of
abrasive
pad,
scouring
powder
or
solvent
such
as
alcohol
purpose
of safety
and
will
fit into
the
power
outlet
only
one
or benzine.
way.
If
you
are
unable
to
insert
the
plug
fully
into
the
outlet,
contact
your
dealer.
On
repacking
Do
not
throw
away
the
carton
and
the
packing
material.
it
On
installation
makes
an
ideal
container
to transport
the
unit
in
«
Do
not
install
the
unit
in
a
location
near
heat
sources
such
as
radiators
or air
ducts,
or
in
a
place
subject
to dirett
For
detailed
safety
precautions,
see
the
“IMPORTANT
sunlight,
excessive
dust,
mechanical
vibration
or shock.
SAFEGUARDS"
leaflet.
+
Good
air
circulation
is
essential
to
prevent
internal
heat
build-up
in
the
unit.
Place
the
unit
in
a
location
with
If
you
have
any
question
or
problem
concerning
your
unit,
adequate
air
circulation.
Do
not
place
the
unit
on
a
soft
please
consult
your nearest
Sony
dealer
surface, such as a rug that would block the ventilation
holes on the bottom.
ler with Batteries
Loading the Remote Com
1
Two
size
“AA”
(R6)
Battery
life
batteries
About
half
a
year
of
normal
operation
can
be
expected
when
|
using
the
Sony
SUM-3
(NS)
batteries.
~IEF
Caution
1
et
When the commander is not to be used for a ong period of
time, remove the batteries to avoid damage caused by
battery leakage and corrosion.

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
Amplitier section
Continuous RMS power output (8 ohms, at 1 kHz less than 0.8% total
harmonic distortion)
STR-AV320 : 65 watts + 65 watts
STR-AV220 : 50 watts ~ 50 watts
Dynamic power
; |4 ohms [8 ohms
STR- |
hee sow + sow i55W+55W |
[STR
a
i
rs
|
+ AY 320 ww 7sW le5w+esw |
at) kHz. IHE
Harmon distortion
Less than 0.8% at rated output
Frequency response
PHONO: RIAA equalization curve +0.5 dB
CD. VIDEO, TAPE: 10Hz - 50 kHz ©?dB
inputs
T r
i s. | nce | S/N (weighting network, input
: ' weve)
: | | 74qB |
PHONO ,25ay | SOklohMS | 7) GBe (A. 2.5 mV) H
co i t |
95 dB '
VIDEO 150 mV SO kiiohms | . i
TAPE | a ih ‘ | 80 dB" (A, 150 mv) i
*-78 IHF
Outputs
REC OUT, VIDEO (AUDIO) OUT Voltage 150 mV i
! Impedance 10 kilohms es
SPEAKER A, B Accepts speakers of
8 ~ 16 ohms i
| HEADPHONES Accepts low and high impedance =|
! headphones j
Y
ae =
Tone controts BASS: + 10 dB at 100 Hz
TREBLE: +10 dB at 10 kHz
Muting - 2008
DBFS ~12dB at 70 Hz
Fld tuner section AM tuner section
Tuning range 87.5 - 108 MHz 530 - 1.710 kHz |
Antenna terminals | 300 ohms, balanced.
75 ohms, unbalanced
Sensitivity at 50 dB | 18.3 dBt, 4.5 xV (mono)
| quieting | 38.3 dBE. 45 wv (stereo) ;
[Usable sensitivity | 11.2 dBf, 2 wv (IHF)
|
|
| . External antenna terminal
| ‘
Loop antenna:
| 500 j.V (at 1.000 kH2)
"784 dB (at 50 mV/m)
"Signal-to-noise "76 dB (mono)
rato 70 GB (stereo)
Harmonic [0.2% (mono), 0.4% "0.3% (at 50 mV/m,
1 distortion 1 (stereo) at 1 KHz 400 Hz)
| Selectivity 60 dB at 400 kHz 40 dB at 10 kHz !
— “1
| Separation 45 dB at 1 kHz
Frequency 30 Hz - 15 kHz ° 3° dB
response
i
Lie
General
System Tuner section: PLL quartz-locked digital
synthesizer system
Preamplitier section: low-noise NF type
equalizer amp
Power amplifier section:
quasi-complementary SEPP
Power requirements
120 V AC. 60 Hz
Power consumption
U.S.A. model; 100 watts (STR-AV320)
90 watts (STR-AV220)
Canadian modet: 160 watts (STR-AV320)
140 watts (STR-AV220)
In standby condition: § watts (STA-AV320 only)
One switched (100 watts)
Approx. 430 < 110 < 295 mm (w/h/d)
(17 * 4/6 X 11 */sinches)
including projecting parts and controls.
Weight Approx. 5.2 kg (11 tbs 7 oz) net (STR-AV220)
Aoprox. 6.2 kg (13 Ibs 11 0z) net (STR-AV320)
Accessories supplied
Remote Commander AM-S103 (1)
(STR-AV320 only)
Sony batteries SUM 3(NS) (2} (STR-AV320 only)
FM wired antenna (1)
AM loop antenna (1)
AC outlets
Oimensions
Design and specifications subject to change without notice.