Page 1
OPERATING THE SYLVANIA STEREO RECEIVER
RS4743
Page 2
TABLE
Introduction
Accessory
Initial
Connecting
Protective
Sound
Sound
Sound
Specifications
Warranty
OF CONTENTS
Page
2
Components
Hook-Up
Antenna Connections
Phono Jacks
Aux Jacks
Tape Jacks
Pre-Amp to Amp Jacks
Speaker Connection
Unswitched Outlets 5
Switched Outlet 5
System
System
System
AM Tuning
FM Tuning
Phono
7
Aux
Tape Play
Tape Recording
8
4
Accessory
4
4
4
Circuits
Indicators
Controls
Operation
7
7
7
7
8
3
Components
4
4
5
5
6
6
7
INTRODUCTION
You are the owner of one of the most
sophisticated and versatile audio instruments on the market.
Center tune and signal strength meter-
ing make possible outstanding tuning
accuracy.
The easy-to-read control panel has push
button controls.
Your receiver features a switched main
The possibility of attaching a number of
accessory components is a feature of
which you will certainly want to take advantage.
We have mentioned just a few of the many
exciting features. As you read these
instructions, you will discover that you
have chosen a receiver capable of being
the heart of a truly professional audio
system.
and remote speaker system so you can
operate all your speakers from the control
panel.
WARNING:
OR ACCESSORY COMPONENTS TO RAIN OR MOISTURE. IF SUCH EXPOSURE OCCURS,
REMOVE THE PLUG FROM THE ELECTRICAL OUTLET AND HAVE THE EXPOSED RECEIVER
OR COMPONENTS CHECKED BY A COMPETENT SERVICE TECHNICIAN.
TO AVOID POSSIBLE FIRE OR SHOCK
Read carefully so you can enjoy the full
potential of your Sylvania receiver.
HAZARD,
NEVER EXPOSE THIS RECEIVER
2
Page 3
Page 4
INITIAL
1.
Connect speakers to appropriate terminals (N).
2.
Slide ferrite rod AM antenna assembly (con-
3. Connect leads from the FM dipole antenna (con-
4.
Plug in AC line cord (O) to a 120 volt, 60 Hz out-
HOOK-UP
See "Speaker Connection" section.
tained in separate bag) into holder (A) and
in connector.
tained in separate bag) under the 300 ohm ter-
minals (K). See "antenna connections" section
for further details.
let.
plug-
CONNECTING ACCESSORY
COMPONENTS
WARNING:
HAZARD,
WHICH DOES NOT HAVE A MANUFACTURER
SUPPLIED AUDIO OUTPUT
TO AVOID A POSSIBLE SHOCK
DO NOT CONNECT ANY ACCESSORY
JACK.
External
1.
Attach center conductor of coaxial lead-in to
2.
Attach outer shield of 75 ohm lead-in to the
Phono Jacks (B)
1.
Plug turntable cables into the appropriate left
2.
The PHONO input may be used with ceramic as
Aux
Plug the output of accessory equipment into the appropriate left and right jacks. Typical accessories
are:
1.
8-track, cassette, or reel to reel tape play deck.
2.
Microphone or musical instrument with pre-
FM
Antenna
the right 75 OHM FM ANTENNA terminal.
ground (left) terminal.
NOTE:
and right PHONO jacks (B). Connect ground
wire under PHONO GROUND terminal(M).
well as magnetic cartridges. Move switch (L)
to appropriate setting. CER for ceramic cartridge or MAG for magnetic cartridge.
Jacks(C)
amplifier.
Use only one FM antenna either 75 ohm
or 300 ohm at any one time.
75 Ohm
Antenna Connections (K)
The jackplate has provisions for attaching outdoor
antennas for reception of distant stations.
External
1.
Connect lead-in wire from antenna to right AM
2.
Connect ground (left) terminal to a good earth
External
1.
Connect leads from a 300 ohm outdoor FM
Long
Line
AM
Antenna
ANTENNA terminal.
ground,
NOTE:
antenna under the two 300 OHM FM AN-
TENNA terminals.
such as a water pipe.
The AM ferrite rod must remain attached
for proper operation.
FM
Antenna
300 Ohm
Tape Jacks (D)
RECORD
Connect the record input jacks of the tape deck to
the TAPE RECORD jacks.
PLAY
Connect the playback output jacks of the tape deck
to the TAPE PLAY jacks.
Pre-Amp
CAUTION:
The pre-amplifier signals are relayed from the PREAMP output jacks to the power AMP jacks. By removing the jumpers, the signal path can be inter-
4
to Amp Jacks (E)
In all cases, turn power off before remov-
ing jumpers.
Page 5
rupted to insert accessory equipment. For example,
an environmental equalizer may be used to shape
frequency response to suit room acoustics. Alternatively, the PRE-AMP output may be routed to an
electronic cross-over network. The low frequency
output of this network would be connected to the
power AMP input while the high frequency output
should be connected to a separate slave power
amplifier. Finally, the PRE-AMP output could be
used to drive a slave power amplifier located remotely from the receiver.
NOTE:To use both slave amp and the internal
Speaker
Use no smaller than 18 gauge wire to connect
speakers to output terminals (N). Always be sure
positive and negative outputs are connected to
corresponding positive and negative terminals on
the speaker.
MAIN
Connect the primary pair of speakers to the main
terminals.
REMOTE
Connect a secondary pair of speakers to the remote
speaker terminals. These speakers could be located
in another room.
PQ-4
Connect a pair of rear channel speakers to obtain a
four channel matrix sound. Switch (G) can be used
to turn off rear speakers when not in use.
poweramp, DO NOT use the main high level
slave amp output to feed the receiver power
amp.
Either use the slave amp low level output or use a commercially available "Y"
connector at the receiver PRE-AMP jacks.
One side of the "Y" goes to the accessory
input, the other goes to the AMP jacks of the
receiver.
Connection (N)
Unswitched
Plug accessory components such as turntables or
tape decks into these outlets. These outlets remain
on when the receiver power switch is turned off.
Switched
Plug associated electronic components such as an
environmental equalizer or slave amplifier into this
outlet. This outlet will be off when the receiver
power is off.
NOTE:
AC
Outlets
AC
Outlet
Do not use this outlet for turntables, tape
decks or other motor driven accessories.
(I)
(J)
PROTECTIVE CIRCUITS
Your receiver incorporates three protective systems to guard against abnormal operating conditions that could cause damage to the receiver or
speakers.
Electronic
Protects the amplifier from improperly connected
speakers. If the output is shorted or excessively
loaded,
output signal to safe levels.
Circuit
Provides protection against AC power overloads.
If your unit suddenly goes off, push the button (H)
in to re-set the breaker. Do not hold the button depressed for an extended length of time. If frequent
resetting is required consult your authorized Syl-
vania service dealer.
Circuit
There are two SPEAKER BREAKERS, one for
each channel. These breakers will turn your speakers off automatically in case of an overload. Turn
set off and push appropriate speaker breaker button (F) in. If frequent resetting is required check
speaker wiring for shorts, damaged speakers or
overload due to improper speaker impedance.
Current
the amplifier will automatically reduce the
Breaker — Main
Breaker — Speakers
Limiting
(H)
(F)
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SOUND SYSTEM INDICATORS
P—FM
Q—TUNING Meter—indicates best FM tuning
R—AM
S—FM Dial — indicates FM station frequencies
T—Log Scale —quick reference tuning guide
MPX Indicator — light glows when you
have tuned in a stereo broadcast.
NOTE:
when needle is centered and indicates best
AM tuning when needle is as far right as possible.
540 to 1600 kHz.
88 to 108mHz.
that provides log scale reference numbers
which can be used to relocate favorite stations.
Indicator will not light when MONO
button is depressed.
Dial — indicates AM station frequencies
SOUND SYSTEM CONTROLS
U—TUNING — to select AM & FM stations.
V—POWER — to turn unit on and off.
W—PHONES Jack — to plug in stereo head-
phones.
X—MAIN SPEAKER Switch — to select main and
PQ-4 speaker systems.
Y—REMOTE SPEAKER Switch — to select re-
mote speaker system.
Z—TREBLE — to adjust high frequency sounds
such as flutes or violins.
AA—BASS — to adjust low frequency sounds, such
as kettle drums or organ pedal notes.
NOTE:
BB—BALANCE — to adjust for equal level from left
and right speakers.
CC—VOLUME — to adjust audio level on all
speakers simultaneously.
To increase treble, or bass turn appro-
priate knob right; to decrease turn left.
Set knob in center position for normal
or"FLAT" response.
DD—TAPE — to engage system for accessory tape
play.
NOTE:
EE—PHONO — to engage system for phonograph
disc. play.
FF—HI and LO Filters — High filter reduces high
frequency hiss and scratch noises.
Low filter reduces turntable rumble, and
acoustical feedback.
GG—AUX — to engage system for auxiliary com-
ponents.
HH—AM — to engage system for AM reception.
II
—MONO — to engage system for monaural
sources.
JJ—FM — to engage system for FM reception.
KK—LOUDNESS — to increase bass frequencies
for proper tonal balance at low listening levels.
LL—MUTE— eliminates interstation noise and
weak noisy FM stations.
Tape button must be released for
FM.
AM, PHONO, OR AUX functions.
SOUND SYSTEM OPERATION
AM
Reception
1.
Depress POWER button (V).
2.
Depress AM button (HH).
3. Rotate TUNING control (U) to select desired
station as indicated on AM dial (R). Reception
is optimum when needle on TUNING meter (Q)
is as far to right as possible.
FM Reception
1.
Depress POWER button (V).
2.
Depress FM button (JJ).
3. Rotate TUNING control (U) to select desired
station as indicated on FM dial (S). Reception is
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optimum when needle of TUNING meter (Q)
is centered.
4.
To listen to a distant station with a weak signal,
release the MUTE switch (LL).
Phono
1.
Connect turntable to rear of unit. See
necting Accessory Components" section.
2.
Depress POWER button (V).
3. Depress PHONO button (EE).
4.
When playing monaural records, depress
MONO button (II).
5. For additional instructions refer to instructions supplied with your turntable.
Aux
1.
Connect accessory unit to rear of unit. See
"Connecting Accessory Components" section.
2.
Depress POWER button (V).
3. Depress AUX button (GG).
Tape Play
1.
Connect tape equipment to TAPE PLAY jacks
on rear of unit. See "Connecting Accessory
Components" section.
2.
Depress POWER button (V).
3. Depress TAPE button (DD).
4.
For additional information consult the instruc-
tions supplied with your tape deck.
Tape Recording
1.
Connect tape equipment to TAPE RECORD
jacks on rear of unit. See "Connecting Accessory Components" section.
2.
Depress POWER button (V).
3. Select program source as described under sections AM, FM, PHONO, or AUX. The program
"Con-
source signal is always present at the TAPE
RECORD jacks and is not affected by the settings of the TREBLE, BASS, VOLUME or BALANCE controls.
4.
If the tape deck is a 3-head type equipped
with a tape monitor function, the recording
can be monitored by depressing the TAPE button (DD). Both the PLAY and RECORD jacks
must be connected to the tape deck. See
Illustration below.
5. For additional information consult the instructions supplied with your tape deck.
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AMPLIFIER
*POWER OUTPUT
1 KHz Continuous (RMS) power 38/38w
Rated Continuous (RMS) power
Rated Continuous (RMS) power
20Hz-20KHz
20Hz-20KHz
Total
IHF
Power bandwidth (IHF) 5Hz->30KHz
Damping Factor 20
*AII power measurements are taken @ 120 volts/60 Hertz
*AII power measurements are taken @ 120 volts/60 Hertz
*AII power measurements are taken @ 120 volts/60 Hertz
continuous power both channels operating
continuous power both channels operating
continuous power both channels operating
and 8 ohms.
and 8 ohms.
and 8 ohms.
DISTORTION
Total harmonic distortion
(THD)
THD
IM distortion (60/7000, 4:1)
IM distortion (60/7000, 4:1)
continuous power, 8 ohms, 1 KHz
continuous power, 8 ohms, 1 KHz
IM distortion (60/7000, 4:1)
IM distortion (60/7000, 4:1)
rated continuous power, 8 ohms, 1 KHz
rated continuous power, 8 ohms, 1 KHz
FREQUENCY RESPONSE
Frequency response
Phono equalization RIAA standard ±1.5db
FILTERS
Low Filter
High Filter
LOUDNESS CONTOUR
Volume Control Position -30db
1000Hz 0db
TONE CONTROL ACTION
Bass Control, 50Hz ±18db
Treble Control 10KHz ±12db
INPUT SENSITIVITY
For rated continuous power, 8 ohms, 1 KHz
Power Amp 1.4v
Tape 250mv
Aux. 250mv
Phono 2.2mv
INPUT IMPEDANCE
Power Amp 100,000 ohms
Tape 100,000 ohms
Aux. 100,000 ohms
Phono 47,000 ohms
music power @ 1 KHz 100w
at
rated power input Less than .25%
at
grated power (1 KHz) Less than .15%
50Hz +6db
at
rated
at
rated
at 1/
at 1/
2
2
at
tape input 7H->^70KHz
30/30w
at
at
at
Less than .25%
Less than .25%
Less than .15%
-20db @ 20Hz
-20db @ 20Hz
12db/octave
12db/octave
-20db @20KHz
-20db @20KHz
12db/octave
12db/octave
SPECIFICATIONS
rated distortion
rated distortion
rated distortion
±1db
OUTPUT LEVEL
For rated continuous power, 8 ohms, 1 KHz
Pre-amp
Tape Output 250mv
OUTPUT IMPEDANCE
Pre-amp
Tape
SIGNAL
Phono 70db below
Phono 70db below
Tape 75db below
Tape 75db below
Aux. 75db below
Aux. 75db below
FM
Usable Sensitivity (IHF)
300 ohms 1.8uV
50db quieting sensitivity
Signal
Capture Radio (IHF) 1.5db
Full Limiting (1db)
Image Rejection 53db
Alternate Channel Rejection
Alternate Channel Rejection
(IHF)
(IHF)
IF Rejection @98MHz 50db
F0 + 1/2 IF
at 98MHz
at 98MHz
AM Suppression 35db
Total Harmonic Distortion
(THD)
Stereo Separation
50Hz/10KHz 25db
FM Muting Threshold
AM
Sensitivity 20dbS/N
30%
Image Rejection
Selectivity ±10KHz,
AGC Figure
AGC Figure
of merit
of merit
out
Out
out
TO
NOISE RATIO
1.4v
10,000 ohms
5,000
input
input
250mv input
250mv input
250mv input
250mv input
TUNER
to
Noise Ratio 100% mod. 67db
Rejection
Rejection
FM Mono
FM Stereo
1KHz 35db
3uv
1.4uV
55db
55db
80db F0 + 1/2 IF
80db
.5%
.5%
5uV
TUNER
mod., 400Hz,
1.4MHz
1.4MHz
1.4MHz
1.4MHz
1.4MHz
200uV/m
60db
28db
43db
43db
ohms
10mv
10mv
GTE Sylvania presents
answer form
you
are
WHO
IS
to
give
protected.
PROTECTED?
The original retail purchaser.
its
you a
warranty
to you in
clear understanding
We
suggest
purchaser mail the warranty registration card
to facilitate service should
WHAT
IS
The receiver
from date
PROTECTED AND FOR HOW
and its
of
purchase.
parts
it be
are
required.
covered
LONG?
for two (2)
HOW ARE YOU PROTECTED?
The Sylvania dealer from whom
receiver,
repair
within
or
the
or an
authorized Sylvania Service Contractor, will
replace
warranty
any
part which fails under normal
period.
You must deliver your receiver
or
an
authorized, Service Contractor's place
service...and pick
it up
from
you
to
your Sylvania dealer
him
when service
performed.
THIS
We
SPECIFICATIONS
Entertainment
Products
GTE
WARRANTY
Receivers
question-and-
of
just
how
the
original retail
to
GTE Sylvania
years
purchased your
use
of
business
IS
THE GTE
recommend
has
for
been
SYLVANIA
Sylvania
SUBJECT TO CHANGE
WITHOUT NOTICE
Group,
700
Ellicott
SYLVANIA
WHO PAYS THE
For two(2) years after
Dealer from whom
LABOR
the
you
CHARGE?
date
of
purchase,
the
purchased your receiver,
Sylvania
or an
authorized Sylvania Service Contractor, will honor this
warranty without
the
two (2)
any
labor
year warranty
or
service charges. After
period,
you pay for
labor
or service charges.
ARE
REPLACEMENT PARTS PROTECTED?
Yes,
replacement parts
original warranty
WHAT
IF
YOU MOVE?
The Sylvania dealer
Contractor located
will honor this warranty
iod.
Service will
slip
to the
you move since
be
dealer
he
are
protected
period.
or an
in the
authorized Sylvania Service
area
for the
expedited
or
service contractor
will
if
not,
initially, have
for the
to
balance
which
of the
balance
you
of the
move
warranty per-
you will present your sales
in the
area
any
to
which
record
of
your purchase.
WARRANTY
Replacement
Street,
Parts
Batavia,
INCORPORATED
New
York
14020
Printed
in USA.
05-36099-1
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