Sony XR-3320 User manual

i ORY 3-758-243-21 (1
FM/AM Cassette Car Stereo
R-3320/4420
Operating Instructions _ pagez
Before operating the unit, please read this manual thoroughly and
“etain it for future reference.
Owner's Record
‘The model and serial numbers are located on the top of the unit.
Record the serial number in the space provided below.
%efer to these numbers whenever you call upon your Sony dealer
“egarding this product.
Model No. XR-3320 Serial No.
Model No. XR-4420 Serial No.
Mode d’emploi pase 20
Avant la mise en service de cet appareil, priére de lire attentivement ce
inode d’emploi que I’on conservera pour toute référence ultérieure.
For installation and connections, see the supplied installation/
connections manual.
Pour I'installation et les connexions, se reporter au manuel
d‘installation/connexions fourni.
‘D 1994 by Sony Corporation

This instruction manual covers the XR-3320/ XR-4420. The main
differences between two are as follows:
Dolby B NR* system
When differences occur, they are clearly described in the
corresponding sections.
The illustrations of the front panel in this manual show the XR-
4420.
* Dolby noise reduction manufactured under license from Dolby
Laboratories Licensing Corporation. “DOLBY” and the double-D symboi
00 are trademarks of Dolby Laboratories Licensing Corporation.
INFORMATION
This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This
equipment generates, uses, and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur ina
particular installation. If this equipment does cause harmful
interference to radio or television 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 or relocate the receiving antenna.
— Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for
help.
You are cautioned that any changes or modifications not expressly
approved in this manual could void your authority to operate this
equipment.

Table of Contents
a
ee]
Location and Function of Controls ..............
Detaching and Attaching the Front Panel
Setting the Clock .....ssssssvvsscessssssssesssessessssssssesssssvesssscsssnnnessssessnnesesscsesneeess
Cassette Player Operation
Listening to the Tape Playback .........sssssscsssessssssssecceseesesssssecesssnsecsssseess 11
Racio Reception
Tuning in a Station ........ssssessssssssessssseecsssnsessesseveccessneessennessesnneesssaneesensaee 12
Using the Memory Preset Function ......csssssssssssecssssseesssssseeesesseessessseseee 13
Maitttemannce
.........ssessvesssssssessssesssvsesnsesescousscnsscnnecenscssssesnecssscesecsesvsenssessoes
16
|
Specifications
s.sisisresancsceceisosssssecasssnssasasssssnssavsssssseeesssonssbovincsveiesseoieoausedeos
17
:
Troubleshooting Guide ........ssssscssssosssssvecsssssoessessnecscstsecsessuseeseesseesseseee 18

Features
General
Detachable-front panel enables you to take
the front panel away with you when you
leave your car (page 9).
¢ Caution alarm will be activated if you tum
off the ignition key without removing the
front panel from the unit.
¢ Built-in high power amplifier (max.
output: 25 W x 4 (XR-4420) 20 W x 4
(XR-3320)) enables you to enjoy a 4-speaker
system.
¢ Line output for connecting an optional power
amplifier.
¢ Provided with a digital 12-hour clock
(page 10).
Cassette player section
Dolby B NR system* reduces tape hiss noises
during the tape playback (page 8).
e ATA (Automatic Tuner Activation) for
automatically turning on the tuner during the
fast-forwarding or rewinding of a tape
(page 8).
*XR-4420 only
Tuner section
¢ SSIR (Sony Super Interference Rejection)
PLL synthesizer tuner
¢ Up to 30 stations can be preset, 18 stations on
FM, 12 stations on AM (page 14).
¢ BTM (Best Tuning Memory) function
automatically selects and stores the stations
with strong signals on the preset number
buttons in order of frequency (page 13).
e Memory Scan function scans each of the
preset stations for five seconds in order
(page 15).

Precautions
¢ If your car was parked in direct sunlight resulting in a
considerable rise in temperature inside the car, allow the unit to
cool off before operating it.
¢ If no power is supplied to the unit, check the connections first. If
everything is in order, check the fuse.
¢ If no sound comes from the speakers of a 2-spéaker system, set the
facler control to the center position.
If ycu have any questions or problems concerning your unit that
are not covered in this manual, please consult your nearest Sony
dealer.
Nates on Cassettes
Cassette care
¢ Avoid touching the tape surface of a cassette, as any dirt or dust
will contaminate the heads.
¢ Keep cassettes away from equipment with built-in magnets such
as speakers and amplifiers, as erasure or distortion on the
re:orded tape could occur.
© Do not expose cassettes to direct sunlight, extremely cold
temperatures or moisture.
e When the tape is played back for a long time, the cassette shell
may become warm because of the built-in power amplifier.
However, this is not a sign of a malfunction.
Notes on Cassettes longer than 90 minutes
The use of cassettes longer than 90 minutes is not recommended
except for long continuous play. The tapes used for these cassettes
are very thin and tend to be stretched easily. Frequent playing and
stopping operation may cause these tapes to be pulled into the
cassette deck mechanism.
Notes on the Front Panel
¢ When you remove the front panel, turn off the power to the unit.
However, if you detach the front panel while the unit is turned
on, the power will automatically be turned off. This will protect
speakers from being damaged.
¢ Co not expose the front panel to direct sunlight, heat sources such
as hot air-ducts, extremely cold temperatures or moisture.

Location and Function of Controls
eC) CEs
Refer to the pages in @ for details.
[1] DSPL (display change/time set) button @ POWER SELECT switch (located on the
Each time the button is pressed, the display bottom of the unit)
on the display window changes as follows: See “POWER SELECT switch” in the
Installation /Connections manual.
ieuenty uae (Gl SENS (sensitivity) button ®
LOUD (loudness) button
uring Radio | Frequency —+ Clock Press to reinforce bass and treble especially
reception when listening at a low volume level. To
*
While
the
ATA
function
is
activated.
cancel
the
mode,
press
it
once
more.
{2] & (eject) button
Press to stop tape playback and to eject the
cassette.
[3] Cassette insertion door
[4] </> (fast winding)/DIR (tape
transport direction change) buttons @
During playback, press <4 or BP for fast
winding, or press both 44 and D>
simultaneously to listen to the other side of
the cassette.
(5) RELEASE (front panel release) button ©
(6) SEEK (automatic tuning)/MANU (manual
tuning) button @
TUNER (radio on/band select) button @
Each time the button is pressed, the band
changes in order of:
pe ce ee eed

oom ba ata SENS LOUD
© CUI ITs) SO |
(AP
[1] Display window
ff MUTE button
Press to mute the sound momentarily.
Press again to restore the same volume level.
CaN) buttons
Normally, the G_\ [<.\ buttons are pressed to control the volume. Pressing the SEL button
changes the mode as follows:
Be BAS (bass) —+ TRE (treble) —» BAL (balance) —» FAD (fader) —> VOL (volume) 7
Press the C=\ [4-\ buttons (to adjust the level) within two seconds, or the volume mode will
return.
Treble control For less treble
Balance To decrease the right- To decrease the left-
control speakers’ volume speakers’ volume
Fad trol To decrease the rear- To decrease the front-
sar ac speakers’ volume speakers’ volume
Volume For more volume
control
OFF (power off) button
T'ress to turn off the radio.

Location and Function of Controls
00 (Dolby NR) button (XR-4420 only)
Press when listening to a tape recorded in
the Dolby B-NR system. To cancel, press it
once more.
Preset number buttons ® ©
ATA (Automatic Tuner Activation) button
. Press to make the tuner turn on
automatically every time you fast-wind a
tape. To cancel, press it once more.
Muting a beep sound
Press
the(¢_)
button
while
pressing
the
SEL
button.
To
obtain
the
beep
sound
again,
press
these
buttons
again.

Detaching and Attaching the Front Panel
Detaching the Front Panel
Before detaching the front panel, be sure to press the OFF button
first. Then press the RELEASE button to open up the front panel,
and detach the panel by pulling it towards you as illustrated.
x
RELEASE button
Do not drop the panel when detaching it from the unit.
Attaching the Front Panel
Apply the right hand side of the front panel to the unit by attaching
part (® of the front panel to part © of the unit as illustrated and
push until it clicks.
Do not press hard or apply excessive pressure to the display
window of the front panel.
Caution alarm
If you turn the ignition key to the
OFF position without removing,
the front panel, the caution alarm
will be activated and a beep
sound will be heard for a few
seconds.
Notes
© Make sure that the front panel
is the right way up when
attaching it to the unit. It
cannot be attached upside
down.
¢ When attaching the front panel,
do not press it hard against the
unit. It can be easily attached
by pressing lightly.
e Never leave the detached front
panel in your car if it is parked
in direct sunlight. There could
be a considerable rise in
temperature inside the car.
¢ When you carry the front panel
with you, put it in the supplied
front panel case.
¢ The display window may
become warm while the unit is
operated. This is not a sign of a
malfunction.

10
Setting the Clock
For example, set it to 10:08.
1 Turn the ignition key to the ON position.
Press the DSPL button for more than two seconds.
DSPL \
O 5 {G0
While keeping the DSPL button pressed, proceed with
the following:
Press either side of the C—_\ or (.\ button to set
the hour digits. (togo (togo
back) forward)
Nz
= (080
Press the Ee | button.
Press either side of the C—\ or [+.\ button to set
the minute digits. (togo (togo
back) forward)
The clock starts activating when you take your finger
off the DSPL button.
The clock has a 12-hour
digital indication.
[STE ee
Note
if the POWER SELECT switch of
the unit is set to the OFF position,
the clock cannot be set unless the
power is turned on. Set the clock
after you turned on the radio, or
tape playback.

Listening to the Tape Playback
Cassette insertion
Ps door </p>
UlGmaerenl (IP)
: g
&
=
rs
-~
insert
a
cassette
to
start
playback.
Note
3
{
Playback
starts
automatically.
Before
turning
off
the
unit;
eject
a
|
the tape to avoid tape damage. g
Tape transport direction
indication.
The side facing up is being
played.
The side facing down is being,
played.
To listen to the reverse side of the cassette,
‘ress Ce) simultaneously.
To Eject the Cassette and Listen to the
Radio
Press the & button.
To Wind the Tape Rapidly
To resume playback, press G&) or Gz) so as not to depress it.
+ “al” of “B>" indicator will
flash while fast-winding the
tape.
Direction
indicator*

Tuning in a Station
as >)
6 Grama 6 S
Searching for the Stations Automatically
— Automatic Tuning
2 Press either side of the SEEK/MANU button lightly.
For lower frequencies For higher frequencies
The scanning stops when a station in received. Press either side
of the button repeatedly until the desired station is received.
Tuning in by Adjusting the Frequency
— Manual Tuning
Select the desired band, then press and hold either side of the
SEEK/MANU button.
For lower frequencies For higher frequencies
Release the button when the desired station is received.
At least two seconds after releasing the button, the system will return to
Automatic Tuning,
PREVENTING ACCIDENTS!
While you are driving, the use of Automatic Tuning and the
Memory Preset Tuning is recommended instead of the Manual
Tuning.
Note
Make sure that you press either
side of the SEEK/MANU button
lightly. If you keep it pressed, the
button will function as the
manual tuning button.
When an FM stereo program
with a sufficient signal
strength is tuned in
The “ST” indication will appear.
Avoiding the automatic tuning
from stopping on stations too
frequently (Local Seek Mode)
Press the SENS button lightly to
get the “LCL” indication. Only
the stations with relatively strong,
signals can be tuned in. The local
seek mode functions only when
the Automatic Tuning is in
operation.
tf FM stereo broadcasting is
difficult to receive (Monaural
Mode)
Press th SENS button lightly to
get the “MONO” indication. The
sound will improve, but it will
become monaural.

Using the Memory Preset Function
: = ; Stations with clearest
[4] ae = reception are automatically
; = searched and memorized
om ata on each band (FM1, FM2,
e) FM3 and AMI, AM2).
Up to 6 stations on each
band can be stored on the
preset number buttons 1 to
1 2 6 in the order of frequency.
Memorizing the Stations Automatically Fs
— BTM (Best Tuning Memory) Function Fy
2
. Select the desired band. The receivable frequeny ranges &
of FM1, FM2 and FM3 are the 3
same. 9
Therefore, 18 stations can be
memorized on FM.
“) Press the M.SCAN/BTM button more than two seconds.
eo >
M SCAN
STM o
The BTM function
‘The BTM function searches all the receivable stations within
‘he currently selected band and memorizes the ones in
300d receiving conditions in sequence from the lowest
‘requency.
Note
There may be cases where there
are not enough receivable
stations due to the lack of stations
in the vicinity or weak
broadcasting signals. In such
cases, the BTM operation may
stop without all the buttons being
occupied with memories.
itow to memorize the stations on the preset number
lguttons
-— When there is no preset number indicated on the display
window, all the preset number buttons set in the currently
selected band will be filled with the memories.
-— When there is a preset number indicated on the display window,
the unit will memorize the stations on the preset number buttons
from the one currently being displayed. For example, when you
chouse FM1 and preset number 3 is being displayed, the
operation will start from the preset number 3 on FM1 and stops
at the preset number 6 on FM3.

14
Using the Memory Preset Function
Up to 6 stations on each
band (FM1, FM2, FM3
and AM1, AM2) can be
stored in the memory in
order of your choice.
231
Memorizing Only the Desired Stations
For example, store a station on the preset number button 1.
1 Select the desired band.
Tune in the station which you wish to store on the
preset number button (page 12).
ei conky
Keep the preset number button pressed for about two
seconds until the “MEM” indication comes on in the
display window.
&
Repeat the same procedure to store other stations.
Only one station per band
(FM1, FM2, FM3 and AM1,
AN2) can be stored in the
memory on each preset number
button.
If you try to store another station
on the same preset number
button, the previously stored
station will be erased.
When the “MEM” indication
comes on, the station is stored in
the memory and the operation is
completed. The “MEM”
indication goes off after a while.

Ll ireerere
=
2 eee
1
Select
the
desired
band.
Notes
pre may be cases where even
the stations which are stored in
the memory cannot be received
due to weak signals in the
vicinity of your car.
© If you keep pressing the preset
number button for more than
two seconds, the currently
received station will be
memorized again. To receive
the previously memorized
station, make sure that the
preset number button is
pressed only lightly.
uondarsy oipey
2 Press the desired preset number button lightly.
C=
Checking in order, All the Stations
Stored in the Memory
— Memory Scan Function
Pres: the M.SCAN/BTM button lightly.
The
tuner
will
receive
in
order,
all
the
stations
stored
in
the
memory
for five
seconds
each.
To
cancel
the
function,
press
the
button
lightly
once
more.

16
Maintenance
Fuse Replacement
If the fuse blows, check the power connection Warning
and
replace
the
fuse.
If
the
fuse
blows
again
Use
only
a
fuse
with
the
specified
amperage.
after
replacement,
there
may
be
an
internal
Use
of
a higher
amperage
fuse
may
cause
malfunction.
serious
damage.
Cleaning the Head and the Tape Path
Prolonged
use
may
contaminate
the
tape
head
Clean
the
tape
head
and
the
tape
path
every
and
the
tape
path.
Contamination
causes
sound
two
weeks
to
enjoy
optimum
hi-fi
stereo
sound.
drop-outs
during
playback.
Use
a
commercially
available
cleaning
cassette.
Cleaning the Connectors
The unit may not function properly if the
connectors between the unit and the front panel
get contaminated. In order to prevent this, open
up the front panel by pressing the RELEASE
button, detach it and clean the connectors from
time to time.
Clean
the
connectors
with
a
cotton
swab
as
Main
unit
Back
of
the
front
panel
illustrated.
Be
sure
to
clean
them
in
the
direction
of
the
arrow.
Dismounting the unit

Specifications
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
7 watts (XR-3320) or 8 watts (XR-4420) per channel minimum
continuous average power into 4 ohms, 4 channels driven, from 20
Hz to 20 kHz with no more than 1% total harmonic distortion.
Other Specifications
Power amplifier section General
Outputs Speaker outputs Output lead Power antenna relay control
(sure seal connectors) lead
Speaker impedance 4-8 ohms Power amplifier control lead
Maximum power output Tone controls Bass + 8 dB at 100 Hz
XR-3320 Treble + 8 dB at 10 kHz
20 W x 4 (at 4 ohms) Loudness +10 dB at 100 Hz
XR-4420 +6 dB at 10 kHz
25 W x 4 (at 4 ohms) Power requirements 12 V DC car battery
(negative ground)
Cassette player section Dimensions Approx. 186 x 57 x 170 mm
Tape track 4-track 2-channel stereo Ona "4x6 “/sin)
F tes} 30 - 16,000 Hz edd Pea
Signalto-noise ratio XR-3320 not inc. projecting parts and
Risse Mounting dimensions Approx. 182 x 53 x 154 mm
(7'/s%2 "fax 6"/xin.)
(w/h/d),
—— ae ay not incl. projecting parts and
cot oe controls
Mass Approx. 1.3 kg (2 Ib. 14 oz)
Accessories supplied Mounting hardware (1 set)
Wow and flutter 0.13% (WRMS) Power connecting cord (1)
Front panel case (1)
Tuner section
FM Design and specifications subject to change without
Tuning range 87.5 - 107.9 MHz notice.
Antenna terminal External antenna connector
Intermediate frequency
10.7 MHz
Usable sensitivity 8 dBf (75 ohms)
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 65 dB (stereo), 70 dB
(mono)
Harmonic distortion at 1 kHz
0.5% (stereo), 0.3% (mono)
Separation 35 dB at 1 kHz
Frequency response 30- 15,000 Hz
Capture ratio 2dB
AM
Tuning range 530 - 1,710 kHz
Antenna terminal External antenna connector
Intermediate frequency
450 kHz
Sensitivity 30nV

Troubleshooting Guide
The following checks will assist in the correction of most problems
which you may encounter with your unit.
Before going through the check list below, refer back to the
connection and operating procedures.
Radio reception
| Trouble Causeemedy
Preset tuning is not possible. « Memorize the correct frequency.
¢ The broadcast is weak.
The broadcast is weak. -» Use manual tuning.
¢ Tune in precisely.
e The broadcast is weak. — Press the SENS
button to enter the MONO mode.
Automatic tuning is not possible.
The “ST” indication flashes.
Tape playback
Playback sound is distorted. The tape head is contaminated. — Clean the
head.
General
¢ Control the volume with the (-.\ button.
¢ Set the fader control to the center position on
the 2-speaker system.
Indications do not appear on the display Detach the front panel and clean the connectors.
window. See “Cleaning the Connectors” of
“Maintenance” for details.
If the above mentioned remedies do not help to improve the situation, consult your nearest Sony
dealer.

20
I ig he)
Ce mode d'emploi couvre les modéles XR-3320 et XR~-4420. Les
différences principales entre ces modéles sont les suivantes.
| xR-4420 | xR-3320
| SystemeDolbysB | Oui [Non
Quand des différences apparaissent, elles sont clairement
mentionnées dans les sections correspondantes.
Dans ce mode d’emploi, les illustrations du panneau avant de
Yappareil présentent le XR-4420.
* Réduction de bruit Dolby fabriquée sous licence de Dolby Laboratories
Licensing Corporation.
DOLBY et le symbole double-D 00 sont des marques de Dolby Laboratories
Licensing Corporation.