Document text
0 P E R A T
N G
N S T R U C T
0 N S
ft Sherwood
Q Sherwood
AM/ FM STEREO RECEIVER RX-4100 HSU
II II
II II
KJ -• •- AUTOfMEMOl
: . " • MHz STEREO :
:;;J L.J HZ. U- ! U- ! khz tuned sleep ch
V0L 0 0 0 • o 0 0 SPEAKER A B
II II
1 II
o
II II
— RX-4100 —
AM/FM STEREO RECEI VER
RX-4100(A-IL) 200a 3.6 3:23 PMH|0|X|2
Introduction
UNPACKING
AND
Congratulations on Your Purchase!
Your new high fidelity receiver is designed to deliver
maximum enjoyment and years of trouble free service.
Please take a few moments to read this manual
thoroughly. It will explain the features and operation of
your unit and help ensure a trouble free installation.
Please unpack your unit carefully. We recommend that
you save the carton and packing material. They will be
helpful if you ever need to move your unit and may be
required if you ever need to return it for service. Your unit
is designed to be placed in a horizontal position and it is
important to allow at least two inches of space behind
your unit for adequate ventilation and cabling
convenience.
To avoid damage, never place the unit near radiators, in
front of heating vents, in direct sunlight, or in excessively
humid or dusty locations. Connect your complementary
components as illustrated in the following section.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
A
CAUTION : TO REDUCE THE RISK OF
ELECTRIC SHOCK, DO NOT
REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS
INSIDE. REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
A
A
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 appliance.
WARNING
To reduce the risk of fire or electric shock, do not expose
this appliance to rain or moisture.
Caution : Do not block ventilation openings or stack
other equipment on the top.
FOR U.S.A.
■ Note to CATV System Installer: This reminder is
provided to call the CATV system installer's attention
to Article 820-40 of 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.
■ FCC 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 in a 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.
CAUTION: Any changes or modifications in
construction of this device which are not expressly
approved by the party responsible for compliance
could void the user's authority to operate the
equipment.
A
Caution regarding placement
(Except for U.S.A. and Canada)
To maintain proper ventilation, be sure
to leave a space around the unit (from
the largest outer dimensions including projections)
equal to, or greater than, shown below.
Left and right panels: 5 cm
Rear panel: 10 cm
Top panel: 20 cm
2
READ THIS BEFORE OPERATING
FOR U.S.A. AND CANADA 120 V
FOR YOUR SAFETY
Units shipped to the U.S.A. and Canada are designed
for operation on 1 20 V AC only.
Safety precaution with use of a polarized AC plug.
However, some products may be supplied with a
nonpolarized plug.
CAUTION : To prevent electric shock, match wide
blade of plug to wide slot, fully insert
ATTENTION : Pour eviter les choc electriques,
introduire la lame la plug large de la borne
correspondante de la prise etpoussre jusqu'au
fond.
FOR CHINA, EUROPE AND AUSTRALIA 220V/230V/240V
FOR YOUR SAFETY
Units shipped to China are designed for operation on
220 V AC only.
Units shipped to Australia are designed for operation
on 240 V AC only.
To ensure safe operation, the three-pin plug supplied
must be inserted only into a standard three-pin
power point which is effectively earthed through the
normal household wiring. Extension cords used with
the equipment must be three-core and be correctly
wired to provide connection to earth.
Improper extension cords are a major cause of
fatalities. The fact that the equipment operates
satisfactorily does not imply that the power point is
earthed and that the installation is completely safe.
For your safety, if in any doubt about the effective
earthing of the power point, consult a qualified
electrician.
PAN-EUROPEAN UNIFIED VOLTAGE
All units are suitable for use on supplies 230-240 V
AC.
FOR OTHER COUNTRIES 115 V/230 V
FOR YOUR SAFETY
Units shipped to countries other than the above
countries are equipped with an AC voltage selector
switch on the rear panel. Refer to the following
paragraph for the proper setting of this switch.
AC VOLTAGE SELECTION
This unit operates on 1 1 5/230 V AC. The AC voltage
selector switch on the rear panel is set to the voltage
that prevails in the area to which the unit is shipped.
Before connecting the power cord to your AC outlet,
make sure that the setting position of this switch
matches your line voltage. If not, it must be set to
your voltage in accordance with the following
direction.
AC voltage selector switch
Move switch lever to match your line voltage with a
small screwdriver or other pointed tool.
CONTENTS
Introduction
• UNPACKING AND INSTALLATION 2
• READ THIS BEFORE OPERATING YOUR UNIT 3
System Connections 5
Front Panel & Remote Controls 7
. REMOTE CONTROL OPERATION RANGE 9
. LOADING BATTERIES 9
Operations
. LISTENING TO A PROGRAM SOURCE 10
. LISTENING TO RADIO BROADCASTS 12
. RECORDING 14
. OTHER FUNCTIONS 14
Troubleshooting Guide 15
Specifications 16
System Connections
■ Do not plug the AC input cord into the wall AC outlet until all connections are completed.
• Be sure to connect the white RCA pin cord to the L(left) and the red RCA pin cord to the R(right) jacks when making audio
connections.
■ Change the position of the FM indoor antenna until you get the best reception of your favorite FM stations.
■ A 75 Q outdoor FM antenna may be used to further improve the reception.
Disconnect the indoor antenna before replacing it with the outdoor one.
■ Place the AM loop antenna as far as possible from the receiver, TV set, speaker cords and the AC input cord and set it to a
direction for the best reception.
■ If the reception is poor with the AM loop antenna, an AM outdoor antenna can be used in place of the AM loop antenna.
■ Make connections firmly and correctly. If not, it can cause loss of sound, noise or damage to the receiver.
■ If the electricity fails or the AC input cord is left unplugged for more than 2 weeks, the memorized contents will be cleared.
Should this happen, memorize them again.
I CONNECTING ANTENNAS
FM
(OUTDOOR ANTENNA)
FM
(INDOOR ANTENNA) £
J Sherwood
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I CONNECTING AUDIO/VIDEO COMPONENTS
CD player
TV or additional component
• The VCR jacks may also be connected to an additional
component such as MD recorder, tape deck, etc.
• The TV/AUX jacks may also be connected to an additional
component such as a TV, DVD player, etc.
5
Speaker B
• Usually SPEAKER A terminals are used for only a pair of speakers.
When you have another pair of speakers, SPEAKER B terminals can be
used.
• Never short-circuit the + and - speaker cords.
• Be sure to connect speakers firmly and correctly according to the
channel (left and right) and the polarity (+ and -).
■ Note :
• For safe amplifier operation, use the speakers with impedance of over
8Q when you use only SPEAKER A or B terminals and use the speakers
with impedance of over 16Q when you use both SPEAKER A and B
terminals.
6
Front Panel & Remote Controls
REMOTE CONTROL UNIT RM -101
J
RX-4100(A-IL) 200a 3.6 3:23 FMiH|0|X|8
(T)POWER BUTTON
Press this button to turn the power on, then the
STANDBY indicator goes off.
Press again this button to turn the power off, then the
STANDBY indicator lights up.
(2) STANDBY INDICATOR
(3) HEADPHONE JACK
Stereo headphones with a standard 1/4 inch plug can be
plugged into this jack for private listening.
(4) SPEAKER A, B SELECTOR BUTTONS
These buttons allow you to select various combinations
of speakers as follows:
■ To drive A speakers, press only the SPEAKER A
button ("SPEAKER A" lights up).
■ To drive B speakers, press only the SPEAKER B
button ("SPEAKER B" lights up).
■ To drive both A and B speakers, press the SPEAKER
A and B buttons ("SPEAKER A" and "B" light up).
■ When using headphones for private listening, press
these buttons to switch off the speaker A and B
("SPEAKER A" and "B" go off).
©INPUT SELECTOR BUTTONS
Press the button to select the desired input source.
©TONE BUTTON
When adjusting the tone (bass and treble), press this
button to select the desired tone mode.
■ Each time this button is pressed, the tone mode is
changed to bass or treble.
(7) BALANCE BUTTON
When adjusting the sound volume balance, press this
button to enter the balance mode.
©BALANCE, TREBLE/BASS UP/DOWN
(^/▼, + /-) BUTTONS
(a) At the balance mode, adjust the sound volume
balance between left and right speakers with these
buttons.
. When the BALANCE +/- buttons on the remote
control are pressed, it enters the balance mode
automatically without pressing the BALANCE button
on the front panel.
(b) At the desired tone mode, adjust the tone as desired
with these buttons.
©TONE DIRECT BUTTON
Press this button to listen to a program source without the
tone effect.
® MEMORY BUTTON
Press this button to store preset stations.
© TUNING/PRESET MODE BUTTON
Press this button to select the tuning mode or the preset
mode.
® NUMERIC BUTTONS(0 - 9)
Press these buttons to select or to store preset stations
directly.
(@) TUNING/PRESET UP/DOWN^ /▼ ) BUTTONS
Press these buttons to tune in the desired stations.
® FM MODE BUTTON
Press this button to select the desired FM mode.
■ Each time this button is pressed, the FM mode is
changed to the stereo mode or the mono mode.
© PRESET SCAN BUTTON
Press this button to scan the stations in the preset sequence.
® VOLUME CONTROL KNOB, UP/DOWN( A/V)
BUTTONS
Adjust the volume to a comfortable listening level with
this knob or these buttons.
<g)MUTE BUTTON
Press this button to temporarily mute the sound.
Press again to resume the previous sound level.
<g) DISPLAY BUTTON
Press this button to select the brightness of unit's display
as desired.
■ Each time this button is pressed, the brightness of
unit's display changes as follows:
ON -> dim -> OFF — |
® SLEEP BUTTON
Press this button to activate the sleep timer for a
specified period of time.
■ Each time this button is pressed, the sleep time
changes as follows:
,10->20 ->30->60 ->90-> OFF -
Unit : minutes
O REMOTE SENSOR
This receives the signals from the remote control unit.
@ FLUORESCENT DISPLAY
For details, see the next page.
8
RX-4100(A-IL) 200a 3.6 3:23 PMH|0|X|9
IFLUORESCENT DISPLAY
INPUT, FREQUENCY, OPERATING INFORMATION, etc.
AUTO INDICATOR
MEMORY INDICATOR
STEREO INDICATOR
I MEMO I
MHz j STEREO
BCIHlg ■ TOWIE©— i!
-MUTE
o o o • o o o :
VOLUME, BALANCE LEVEL DISPLAY
MUTE INDICATOR
SPEAKER A, B INDICATORS
SLEEP m
PRESET NUMBER, SLEEP TIME, TONE LEVEL DISPLAY
TUNED INDICATOR
■ Use the remote control unit within a range of about
7 meters (23 feet) and angles of up to 30 degrees
aiming at the remote sensor.
Remove the cover.
o o
0
Load two batteries matching the polarity.
2x1.5V
R6/SUM-3/AA
+ —
- +
« Remove the batteries when they are not used for a
long time.
• Do not use the rechargeable batteries(Ni-Cd type).
9
Operations
LISTENING TO A PROGRA
Turn the power on.
ON/ STANDBY
or
• The unit is turned on and enters the operating mode.
• To turn the power off, press the POWER button.
Then it enters the standby mode and the STANDBY
indicator lights up. This means that the unit is not
disconnected from the AC mains and a small amount of
current is retained to support the operation readiness.
■ In the standby mode, if an INPUT SELECTOR
button is pressed, the unit is turned on automatically
and the desired input is selected.
0
Operate the selected component for
playback.
0
Adjust the volume to a comfortable
listening level.
DOWN
oooo
. 1 )
1-
CD
VOLUME
CD
0
Switch the desired speakers on.
A— SPEAKER— B
or
0
To mute the sound.
• Then the corresponding speaker indicator lights up
and the sound can be heard from the speakers
connected to the selected speaker terminals.
■ When using the headphones for private listening,
press the corresponding SPEAKER button to
switch off both A and B speakers.
. "MUTE" lights up and "SPEAKER" flickers.
■ To resume the previous sound level, press this
button again.
Select the desired input source.
0
To listen with the headphones.
. Each time the FM/AM button on the front panel or
the TUNER button on the remote control is
pressed, the band is changed to AM or FM.
Be sure to switch off both A and B speakers.
RX-4100(A-IL) 2003 3.6 3:23 PM H|0|X|1 1
Adjusting the tone(bass and treble)
#
Enter the tone mode.
or
Each time this button is pressed, the corresponding
tone mode is selected and shown for 5 seconds as
follows:
,^BAS(s)^TRE(ble)
■Note:
■ When the tone direct function is activated, the tone
mode cannot be entered and "T-DIR" is displayed.
#
At the desired tone mode, adjust the tone as
desired.
or
1 Jj
■ If the tone display disappears, start from the step 8
again.
■Notes:
■ Extreme settings at high volume may damage your
speakers.
■ In general, the bass and treble levels are adjusted
to 0.
To listen to a program source without the tone effect.
TONE DIRECT
■ "T-DIR" is displayed and the sound that bypasses
the tone circuitry will be heard.
■ To cancel the tone direct function, press this button
again to display "DOFF".
Adjusting the sound volume balance
Enter the balance mode.
'BAL" is displayed for 5 seconds.
Adjust the sound volume balance between
the left and right speakers.
or
■ If the balance display disappears, start from the
step 11 again.
■ When the BALANCE + / - buttons on the remote
control are pressed, it enters the balance mode
automatically without pressing the BALANCE
button on the front panel.
■Note:
• In general, the balance level is set to the center
position(red dot).
LISTENING
TO RADIO
Auto tuning
Select the tuner and then the desired band.
or
fm-
BAND FREQUENCY
• Each time this button is pressed, the band is changed
to FM or AM.
0
Select the tuning mode.
• Each time this button is pressed, the mode changes
as follows:
i— * Tuning mode : "CH" goes off. — i
Preset mode : "CH" lights up. <— '
0
Press the TUNING/PRESET UP( A) or
DOWN(T0 button for more than 0.5
second.
TUNING/ PRESET
c
■ Then "AUTO" appears on the display. The tuner
will now search until a station of sufficient
strength has been found. The display shows the
tuned frequency and "TUNED".
■ If the station found is not the desired one, simply
repeat this operation.
■ Weak stations are skipped during auto tuning.
Manual tuning
■ Manual tuning is useful when you already know the frequency of
the desired station.
■ Perform the steps 1 and 2 in "Auto tuning" procedure and press the
TUNING/PRESET UP( a) or DOWNO) button repeatedly until
the right frequency has been reached.
TUNING/ PRESET
Presetting radio stations
■ You can store up to 30 preferred stations in the
memory.
0
Tune in the desired station with auto or
manual tuning.
0
Press the MEMORY button.
or
■ "MEMO" is flickering for 5 seconds.
0
Select the desired preset number (1~30) and
press the MEMORY button.
■ When using the NUMERIC buttons on the remote
control. 3
Examples) For "3" : Q
1 within 2 seconds 5
For "15": O ►Q
For "30" : O
■ The station has now been stored in the memory.
• When using the NUMERIC buttons, the station is
stored automatically without pressing the MEMORY
button.
■ A stored frequency is erased from the memory by
storing another frequency in its place.
■ If "MEMO" goes off, start again from the above step 2.
0
Repeat the above steps 1 to 3 to memorize
other stations.
■MEMORY BACKUP FUNCTION
The following items, set before the receiver is turned
off, are memorized.
. INPUT SELECTOR settings
■ Preset stations, etc.
■Note
■ If the electricity fails or the AC input cord is
disconnected for more than 2 weeks, they are all
cleared. So you should memorize them again.
Tuning to preset stations
0
After selecting the tuner as an input
source, select the preset mode.
0
Select the desired preset number.
TUNING/ PRESET
Then "CH" lights up.
■ When using the NUMERIC buttons on the remote
control. 3
Examples) For "3" : ( TT )
_ ,,.«_„ 1 within 2 seconds 5 ,
For "15": Q) ►O
For "30" :Q
■ When selecting the desired preset number with the
NUMERIC buttons, the desired preset station will be
tuned to automatically without selecting the preset
mode.
Listening to FM stereo broadcasts
Scanning preset stations in sequence
While listening to FM broadcasts.
Each time this button is pressed,
the FM mode changes as follows:
Stereo mode : "STEREO" lights up.
Mono mode : "STEREO" goes off.
When FM stereo broadcasts are poor because of
weak broadcast signals, select the FM mono mode to
reduce the noise, then FM broadcasts are reproduced
in monaural sound.
■ The receiver will start scanning the stations in the preset
sequence and each station is received for 5 seconds.
■ At the desired station, press this button again to stop
scanning.
1 3
RX-4100( A-IL) 2003 3.6 3:23 FM Jt||0|X|1 4
RECORDING
. The volume, tone(bass, treble) and balance settings have no effect on the recording signals.
. When you select tuner, CD or AUX as a recording source, recording may be made on TAPE or VCR, or both simultaneously.
Recording with TAPE
Recording with VCR
9
Select the desired input as a recording
source except for TAPE.
o o o
VCR AUX
0
Select the desired input as a recording
source except for VCR.
0
Start recording on the TAPE.
0
Start recording on the VCR.
0
Start play on the desired input.
0
Start play on the desired input.
The audio signals from the desired input will be
recorded onto the VCR.
OTHER FUNCTIONS
Operating the sleep timer
• The sleep timer allows the receiver to continue to
operate for a specified period of time before
automatically shutting off.
• To set the receiver to automatically turn off after
the specified period of time.
• Each time this button is pressed, the sleep time
changes as follows:
10 -^20 30 ^ 60 ^ 90 -^OFF -i
| Unit : minutes |
• While operating the sleep timer, "SLEEP" lights up
and the unit's fluorescent display is dimly lit.
Adjusting the brightness of the unit's
fluorescent display
Each time this button is pressed, the brightness of
the unit's fluorescent display changes as follows:
i-> ON -> dim -> OFF
■ In the display OFF mode, pressing any button will
restore the display ON mode.
RX-4100(A-IL) 2003 3.6 3:23 PM Jt||0|X|15
-O-
Troubleshooting Guide
If a fault occurs, run through the table below before taking your receiver for repair.
If the fault persists, attempt to solve it by switching the receiver off and on again. If this fails to resolve the situation, consult
your dealer. Under no circumstances should you repair the receiver yourself as this could invalidate the warranty.
PROBLEM
POSSIBLE CAUSE
REMEDY
No power
• The AC input cord is disconnected.
• Poor connection at AC wall outlet or the
outlet is inactive.
• Connect the cord securely.
• Check the outlet using a lamp or another
appliance.
No sound
• The speaker cords are disconnected.
• The volume is adjusted too low.
• The MUTE button on the remote control
is pressed to ON.
• Speakers are not switched on.
• Incorrect selection of the input source.
• Incorrect connections between the
components.
• Check the speaker connections.
• Adjust the volume.
• Press the MUTE button to cancel the
muting effect.
• Press the SPEAKER A or B button to ON.
• Select the desired input source correctly.
• Make connections correctly.
Stations cannot be received
• No antenna is connected.
• The desired station frequency is not tuned
in.
• The antenna is in wrong position.
• Connect an antenna.
• Tune in the desired station frequency.
• Move the antenna and retry tuning.
Preset stations cannot be
received
• An incorrect station frequency has been
memorized.
• The memorized stations are cleared.
• Memorize the correct station frequency.
• Memorize the stations again.
Poor FM reception
• No antenna is connected.
• The antenna is not positioned for the best
reception.
• Connect an antenna.
• Change the position of the antenna.
Continuous hissing noise
during FM reception,
especially when a stereo
broadcast is received.
• Weak signals.
• Change the position of the antenna.
• Install an outdoor antenna.
Continuous or intermittent
hissing noise during AM
reception, especially at night.
• Noise is caused by motors, fluorescent
lamps or lightning, etc.
• Keep the receiver away from noise
sources.
• Install an outdoor AM antenna.
No recording
• Incorrect selection between the
components.
• Incorrect operation of each component
for playback and recording.
• Make connections correctly.
• Operate each component correctly.
Remote control unit does
not operate.
• Batteries are not loaded or exhausted.
• The remote sensor is obstructed.
• Replace the batteries.
• Remove the obstacle.
Specifications
I AMPLIFIER SECTION
Power output, stereo mode, 8 Q, THD 0.9 %, 50 Hz~20 kHz 2 x 105 W
Total harmonic distortion, 8 Q, 105 W, 1 kHz 0.05 %
Intermodulation distortion
60 Hz : 7 kHz= 4 : 1 SMPTE, 8 Q, 105 W 0.3 %
Input sensitivity, 47 kQ
Line 200 mV
Signal to noise ratio, IHF "A" weighted
Line 95 dB
Frequency response
Line, 20 Hz~40 kHz ±3 dB
Output level
TAPE/VCR OUT, 2.2 kQ 200 mV
Bass/Treble control, 100 Hz/10 kHz ±10 dB
I FM TUNER SECTION
Tuning frequency range 87.5~108 MHz
Usable sensitivity, THD 3%, S/N 30 dB 17.2 dBf
50 dB quieting sensitivity, mono/stereo 20.8/41.2 dBf
Signal to noise ratio, 65 dBf, mono/stereo 68/68 dB
Total harmonic distortion, 65 dBf, 1 kHz, mono/stereo 0.5/0.8%
Frequency response, 40 Hz~12 kHz ±3 dB
Stereo separation, 1 kHz 32 dB
Capture ratio 4 dB
IF rejection ratio 75 dB
I AM TUNER SECTION
Tuning frequency range 520~1710 kHz
Usable sensitivity 800 /N/m
Signal to noise ratio 40 dB
Selectivity 25 dB
I GENERAL
Power supply AC 120 V, 60 Hz
Power consumption 2.5 A
Dimensions (W x H xD) 440 x 138 x332 mm(17-3/8 x 5-7/16 x 13 inches)
Weight (Net) 9.5 kg(20.9 lbs)
Note: Design and specifications are subject to change without notice for improvements.
0 Sherwood
RX-4100
AM/ FM STEREO RECEI VER
5707-21054-003-0
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