Sony XR-7100 User manual

S
O
N
Y.
3-765-944-22
(1)
8
FM/AM CASSETTE CAR STEREO
XR-7100
OPERATING INSTRUCTIONS
Before operating the unit, please read this manual
thoroughly and retain it for future reference.
OWNER’S RECORD
The model number is located at the front, and the serial
number is located at the top. 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. XR-7100 Serial No.
© 1987 by Sony Corporation

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
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 the receiving antenna
Relocate this equipment with respect
to the receiver
Move this equipment away from the
receiver
Plug this 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.
2
TABLE OF CONTENTS
Features. 2c ct ee yin ban 3
Precautions ...................... 3
Location and function of controls ... 4
How to set the clock.............. 8
Radio reception
Automatic tuning ................. 9
Manual tuning.................... 10
Memory preset tuning ............. 11
| Tape playback
Playback .............0...00.000. 12
To locate the beginning of a
selection—Automatic Music Sensor
CNS) ee 13
Specifications .................... 14
How to replace the fuse ........... 15

FEATURES
Tuner section
«Memory preset tuning function allows
you to store a total of 18 stations in
memory.
¢Precise tuning is possible with the
digital synthesizer system.
Cassette deck section
* High quality sound is obtained in both
tape transport direction, equipped with
the dual adjust head.
General
¢ 4-speaker system operation is possible
with the built-in power amplifiers.
(25 W x 4)
¢
Easy
operation
with
the
direct
function
system.
You
need
not
manually
switch
the
function
between
radio
reception
and
tape
playback.
¢ A graphic equalizer and an auxiliary
source such as a TV tuner can be
connected to the built-in amplifier.
PRECAUTIONS
¢{f your car was parked in direct
sunlight and there was a considerable
rise in temperature inside the car,
allow the unit to cool off before
operating.
*\lf no power is being supplied to the
unit, check the connections first. If
everything is in order, check the fuse.
e{f no sound comes from the speakers
of a 2-speaker system, set the FADER
control to the center position.
Protection circuit
The built-in power amplifier employs a
protection circuit to protect the
speakers if the amplifier malfunctions.
When a protection circuit activates,
there will be an abrupt loss of sound
from the speakers.
Particularly, when a speaker with a low
input impedance (less than 3.2 ohms) is
connected to the unit, the sound will be
discontinued. This, however, is not a
problem. If this happens, turn the
volume down a little.
If you have any question or problem
concerning your unit that is not covered
in this manual, please consult your
nearest Sony dealer.

[1] TRE (treble) control
BAS (bass) control
[2] LOUD (loudness) button
Press to reinforce bass or treble
especially when listening at a low
volume.
To disengage the button, press it again.
(3] AUX (auxiliary input) indicator
Lights up while an auxiliary source
connected to the REM IN connector of
this unit is input.
Cassette insertion door
f=]
foo]
on
=|
(8} OO /MONO (Dolby noise reduction*/monaural) button
PLL SYNTHESIZER TUNER
~~ MANUAL + osP 0 MEM
4 ; om f i
[5)Display window
See page 7.
m4 (stop/eject) button
When pressed once, the tape stops.
When pressed again, the tape is ejected.
[7|PLAY/DIR (playback/tape transport
direction) button
When pressed while the tape is in the
stop mode, playback starts.
When pressed during playback, the side
of the cassette to be played back
changes.
Operation mode T “Function |
| Press to activate Dolby noise reduction system.
Tape playback t DOLBY button
Radio reception MONO button
| Press to reduce noise during reception of a weak FM
| | stereo program. The sound will be monaural instead.
To disengage the button, press it again.
* Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
‘DOLBY and the double-D symbol 00 are trademarks of Dolby Laboratories Licensing Corporation.
4

DUAL ADJUST HEA!
RR- TOG
PLL SYNTHESIZER TUNER
~MANUAL+ = DISP) MEM
ee a ot
(9} fio) (11) (12 13}
[9] FAD (fader) control
Turn to adjust the output volume of the front and the rear speakers.
To reduce rear speakers’ volume. turn clockwise.
To reduce front speakers’ volume. turn counterclockwise.
(10) Power switch: VOL (volume)’PULL BAL (balance) control
| Function i s ;
1 Power switch Press to turn on and off the unit.
VOL control Turn to adjust the volume. ~s
PULL BAL control Pull and turn to adjust balance of the left and the right channel output
[11] FM/AM select button
(12;SEEK button
Press to search for the desired station.
43] METAL/LOCAL button
F Operation mode
Function
METAL button
Tape playback Press when listening to CrO2 (TAPE II) or metal (TAPE [\) tapes.
| | Press to eliminate interference from adjacent. stations during
Radlo-reception FOCAL ution reception of a comparatively strong station.
|
|
To disengage the button, press it again.

l25wx4 maces
i i ;
PLL SYNTHESIZER TUNER |
ose mem |
MANUAL + ’ — buttons
Press to tune in the desired station
manually.
DISP (display) button
Press to change the display to the time
display during radio reception.
Press again to disengage the button.
(16] MEM (memory) button
Press to memorize the station.
(17| Preset number buttons
(18} AMS (Automatic Music Sensor)/FF (fast forward)/REW (rewind) button
Function = - : “a. -# ~~ 7 Pak
AMS button
Press FF or REW once during playback to locate the beginning of a selection.
(The “AMS” indication blinks.)
FF/REW button Press FF or REW twice during playback for fastwinding.

“Display window _
ff oo
FM1FM2AM
i
iu
Pict cits
[4] [5] (6)
During radio reception
(1)Band and frequency indicators
[2|MEM (memory) indicator
Lights up when the MEM button is
pressed.
[3]ST (FM stereo) indicator
Lights up when an FM stereo
program of sufficient signal strength
is tuned in.
[4]MONO indicator
Lights up when the DO /MONO
button is activated during radio
reception.
[S]LOCAL indicator
Lights up when the METAL/LOCAL
button is activated during radio
reception. —
(6)Preset number indicator
Shows the selected preset number.
| During tape playback
(7)Time display
[8]Cassette side indicator
pm: The side facing upward is being
played back.
<4: The side facing downward is
being played back.
(10) METAL indicator
Lights up when the LOCAL/METAL
button is activated during tape
playback.
(14]NR indicator
Lights up when the DOO /MONO
button is activated during tape
playback.
During radio reception and tape
playback
[9]LOUD (loudness) indicator
Lights up when the LOUD
button is activated.

HOW TO SET THE CLOCK
~
MANUAL
+
MEM
1 Set the hour digits.
While pressing MEM, press MANUAL — repeatedly.
2 Set the minute digits.
While pressing MEM, press MANUAL + repeatedly.
The digits are advanced in sequence. To advance them rapidly, keep + or —
pressed.
When you set minute digits
00" comes after 59”. The hour digits do not
ghange then.
To adjust to zero second
Example: To set to 9:00 precisely
1 Set the time to 9:59.
2 As soon as it becomes nine o'clock, press the
MANUAL + button. while pressing the MEM
button.
(Synchronize with the time tone of a radio
program, etc.)

P to t
the power on 3 1 2
PLL SYNTHESIZER TUNER
ose MEM OUR
oe oe
1
Press
FM’AM
to
select
the
desired
band.
2 Press SEEK.
The
unit
automatically
scans
for
a
station
and
stops
when
a
Station
is
tuned in.
Repeat
pressing
the
button
until
the
desired
station
is
tuned
in.
3 Adjust the volume.
To stop the radio and listen to a tape
When
a
cassette
is
not
inserted:
Insert
a
cassette.
When
a
cassette
is
already
inserted:
Press
PLAY/
DIR.
To
stop
the
radio
and
switch
off
the
unit,
press:
the
power
switch.
To eliminate interference during reception of a
comparatively strong station
Press METAL’LOCAL.
To listen to the auxiliary source connected to the
REM !N connector of this unit
Play the auxiliary source:
The radio sound will stop automatically, and the
band and frequency indicators will change to the
time display.
To listen to the radio again
Stop the auxiliary source.
The radio station you were listening to last is
tuned in automatically. If not. turn off the
auxiliary source.

P to t
ihe power on. OT 2
BUAL ADJUST HEAL
A: POG
1 Press FM’AM to select the desired band.
2 Press MANUAL + or — until the desired station is tuned in.
3 Adjust the volume.
Warning
While driving. keep your eyes on the road and use
the automatic tuning or the memory preset
tuning!
10

TO MEMORIZE STATION FREQUENCIES
You
can
memorize
a
total
of
18
stations
(6
stations
for
each
band),
one
on
each
preset
number,
in
any
desired
order.
Press
to
turn
the
power
on.
2
PLL SYNTHESIZER TI
— MANUAL +
ose
cs Gs Fe ter
1 Tune in the desired station.
2 Press MEM.
“MEM” will light up on the display window.
3 Press the desired preset number button, while “MEM” is lit.
Repeat these steps for each station.
O TUNE IN THE PRESET STATION
1 Press FM/AM to select the desired band.
2 Press the desired preset number button.
Important
Every preset number button has only one
memory. The previously. memorized station will be
erased when you enter a new station of the same
band on the same number preset button
If the “MEM” indicator goes off before pressing
the number button
Press MEM again.
11

l25Wx4 gases
a : bee : O00 “MONO
y- - METAL/LOCAL
--» AMS/FF/REW
Press to turn
the power on.
1 Insert a cassette.
Playback will start automatically.
2 Adjust the volume.
| To listen to the other side of the cassette, press PLAY/DIR. |
eas eA an eh ee
To stop playback and listen to the radio, press m4.
The unit enters the radio mode.
To stop playback and switch off the unit, press the power switch.
Side of the cassette being played back To listen to the auxiliary source connected to the
This unit plays back both sides of the cassette REM IN connector of this unit
repeatedly. The indicator on the display window Play the auxiliary source.
shows which side of the cassette is being played The tape will stop automatically.
back
ie Se Seats To listen to the tape again
Indicator Side Press PLAY-DIR. If the XR-7100 does not operate,
> The side facing upward first turn off the auxiliary source and press
o28 fe oats anes “
< | The side facing downward BEAY/DIR
12

TO LOCATE THE BEGINNING OF A SELECTION DURING PLAYBACK
ee UL COLIEL Uo UU emesr cela CU ES))
table.
Press FF or REW side of the AMS/FF/REW button, referring to the following
Desired selection
Next selection
Press FF once.
Selection being played
Press REW once.
To select the tape type
Tape type
CrO2 (TYPE I)
Metal (TYPE IV)
Press METAL/LOCAL once
to engage the button.
Press METAL/LOCAL twice
to disengage the button.
Normal (TYPE I)
The unit automatically adjusts the equalization
setting to the optimum according to the tape
type.
Notes on the AMS
¢ The AMS may not operate correctly if:
—There is noise in the space between
selections.
—The space is less than 4 seconds long.
—FF is pressed immediately before the
following selection. _
—REW is pressed immediately after the
selection starts.
* The AMS will treat the followings as blanks.
—a long pause in the music _
—a passage of low frequencies or very low
sound level
—gradual increase or decrease of volume
To listen to Dolby NR-processed tapes
Press DO /MONO.
Dolby NR (Noise Reduction) system reduces tape
hiss noise in low-level, high-frequency signals.
The system boosts these signals in recording and
lowers them in playback. Therefore, the DOLBY
NR system must be engaged when you listen to
tapes recorded with this system.
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
magnets such as speakers and amplifiers, as
erasure or distortion on the recorded tape could
occur.
* Do not expose cassettes to direct sunlight,
extremely cold temperatures or moisture.
Note on the 120-minute cassette
The use of a 120-minute cassette tape is not
recommended except for long continuous
playback.
Cleaning the head
Clean the tape head every two weeks to enjoy
optimum hi-fi stereo sound. Use a commercially
available cleaning cassette. 13

SPECIFICATIONS
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
13 watts per channel minimum continuous average power into
4 ohms, 4 channels driven from 60- 20,000 Hz with no more
than 1% total harmonic distortion per Car Stereo Ad Hoc
Committee standards.
OTHER SPECIFICATIONS
Power amplifier section
Outputs Speaker outputs
(sure seal connectors).
Speaker impedance
3.2-8 ohms
Maximum power output
25 watts per channel at
4 ohms* (4 channels driven)
* Measured at 14.4V
Cassette player section
Tape Prerecorded tape cassette
Head Playback head
Tape track 4-track 2-channel stereo
Frequency response
30- 18,000 Hz (+3 dB)
Signal-to-noise ratio
Dolby NR off:
With type II, IV cassette
58 dB (A-weighted)
With type cassette
55 dB (A-weighted)
Dolby NR effect More than 8 dB (CCIR/ARM)
Wow and flutter 0.15% (WRMS)
Fast winding time
: Approx. 100 sec.
(with Sony C-60 cassette)
Crosstalk Between channels:
better than 30 dB
Tuner section
System FM/AM superheterodyne tuner
Computerized quartz-locked
synthesizer system
FM tuner section
Tuning range 87.9 - 107.9 MHz
Antenna terminal FM/AM external antenna
connector
FM/AM power antenna relay
contro! lead
Intermediate frequency
10.7 MHz
Usable sensitivity 11.2 dBf (75 ohms)
Sensitivity at 50 dB quieting
16.4 dBf (75 ohms)
Selectivity 70 dB at 400 kHz
Signal-to-noise ratio
65 dB (stereo), 68 dB (mono)
Harmonic distortion at 1 kHz
0.3% (stereo), 0.2% (mono)
Separation 35 dB at 1 kHz
Frequency response
30- 15,000 Hz
Capture ratio 2.0 dB
AM tuner section
Tuning range 530 - 1,620 kHz
Antenna terminal FM/AM external antenna
connector
FM/AM power antenna relay
control lead
Intermediate frequency
450 kHz
Sensitivity 35 nV

General
Time dispiay system
12-hour display
Tone controls Bass +8dB at 100 Hz
Treble +8dB at 10 kHz
Loudness (at - 30 dB)
+6 dB at 100 Hz
+5 dB at 10 kHz
Output lead Power antenna relay control
lead (ANT REM)
Remote control output lead
(REM OUT, AMP REM)
Line output lead (LINE
OUTPUT)
Input lead Remote control input lead
{REM IN)
Line input fead (LINE INPUT,
AUX INPUT)
HOW TO REPLACE THE FUSE
Power requirements
12 V DC car battery
(negative ground)
Dimensions Approx. 178 x 50 x 168 mm
(w/h/d) (7% x 2 x 65% inches)
not incl. projecting parts and
controls
Mounting dimensions
Approx. 178 x 50 x 153 mm
(w/h/d) (7% x 2 x 6% inches)
not incl. projecting parts and
controls
Weight Approx. 1.6 kg (3 Ib 9 02)
Accessories supplied
Mounting hardware (1 set)
1-ampere fuse (1)
10-ampere fuse (1)
Design and specifications subject to change
without notice.
If the fuse blows, check the power connection and replace the fuse.
Fuse (1 A)
Warning
Use only a 10 ampere fuse and a 1 ampere fuse.
Use of a higher amperage fuse may cause
serious damage.
15