Sherwood Stereo Receiver RX 772 User Manual

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Introduction  
READ THIS BEFORE OPERATING YOUR UNIT  
This symbol is intended to alert the user to the presence of  
uninsulated "dangerous voltage" within the product's enclo-  
sure that may be of sufficient magnitude to constitute a risk  
of electric shock to persons.  
: TO REDUCE THE RISK OF ELECTRIC  
SHOCK, DO NOT REMOVE COVER (OR  
This symbol is intended to alert the user to the presence of  
important operating and maintenance (servicing) instruc-  
tions in the literature accompanying the appliance.  
CAUTION  
BACK). NO USER-SERVICEABLE PARTS  
INSIDE. REFER SERVICING TO QUALI-  
FIED SERVICE PERSONNEL.  
WARNING : TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,  
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.  
Caution regarding installation  
Note : For heat dispersal, do not install this unit in a confined space such as a bookcase or similar enclosure.  
Do not block ventilation openings or stack other equipment on the top.  
FOR YOUR SAFETY  
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 oper-  
ates 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.  
EUROPE  
AUSTRALIA  
220 V  
-
240 V  
PAN-EUROPEAN UNIFIED VOLTAGE  
All units are suitable for use on supplies 220-240 V AC.  
CAUTION  
Leave a space around the unit for sufficient ventilation.  
Avoid installation in extremely hot or cold locations, or in an area that is exposed to direct sunlight or heating equipment.  
Keep the unit free from moisture, water, and dust.  
Do not let foreign objects in the unit.  
The ventilation should not be impeded by covering the ventilation openings with items, such as newspapers, table-cloths,  
curtains, etc.  
No naked flame sources, such as lighted candles, should be placed on the unit.  
Please be care the environmental aspects of battery disposal.  
The unit shall not be exposed to dripping or splashing for use.  
No objects filled with liquids, such as vases, shall be placed on the unit.  
.
• Do not let insecticides, benzene, and thinner come in contact with the set  
Never disassemble or modify the unit in any way.  
Notes on the AC power cord and the wall outlet.  
The unit is not disconnected from the AC power source(mains) as long as it is connected to the wall outlet, even if the unit has  
been turned off.  
When disconnecting the power cord from the wall outlet, always pull the plug, not the power cord.  
Disconnect the plug from the wall outlet when not using the unit for long periods of time.  
The wall outlet shall be installed near the unit and shall be easily accessible.  
Note on recycling  
This product’s packaging materials are recyclable and can be reused. Please dispose of any materials  
in accordance with the local recycling regulations.  
When discarding the unit, comply with local rules or regulations.  
Batteries should never be thrown away or incinerated but disposed of in accordance with the local regu-  
lations concerning chemical waste.  
This product and the accessories packed together constitute the applicable product according to the  
WEEE directive except batteries.  
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CONTENTS  
Introduction  
READ THIS BEFORE OPERATING YOUR UNIT ....................................................................... 2  
System Connections .................................................................................................................... 4  
Front Panel & Remote Controls ....................................................................................... 8  
REMOTE CONTROL OPERATION RANGE ............................................................................ 10  
LOADING BATTERIES ............................................................................................................. 10  
Operations  
LISTENING TO A PROGRAM SOURCE .................................................................................. 11  
LISTENING TO RADIO BROADCASTS ................................................................................... 15  
LISTENING TO RDS BROADCASTS (FM ONLY) .................................................................... 17  
(RDS Tuner (Regional Option for some countries in Europe, etc.)  
RECORDING ............................................................................................................................ 20  
OTHER FUNCTIONS ................................................................................................................ 21  
Troubleshooting Guide ............................................................................................................. 22  
Specifications .............................................................................................................................. 23  
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System Connections  
• Do not plug the AC input cord into the wall AC outlet until all connections are completed.  
• Be sure to observe the color coding when connecting audio, video and speaker cords.  
• Make connections firmly and correctly. If not, it can cause loss of sound, noise or damage to the receiver.  
1.  
CONNECTING ANTENNAS  
GND  
GND  
AM  
LOOP  
AM  
LOOP  
• A 75outdoor FM antenna may be used to further  
improve the reception. Disconnect the indoor  
antenna before replacing it with the outdoor one.  
• Change the position of the FM indoor antenna until you  
get the best reception of your favorite FM stations.  
GND  
AM  
LOOP  
• 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.  
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2.  
3.  
CONNECTING PHONO  
Note  
• Do not connect the turntable with MC type cartridge  
directly. If so, use a separate head amplifier or step-up  
transformer.  
CONNECTING VIDEO AND AUDIO COMPONENTS  
• The TV and AUX jacks may also be connected to an additional component such as a TV, DVD player, etc.  
• The TAPE IN/OUT jacks can be connected to audio recording equipment such as a tape deck, an MD recorder, etc.  
• The VIDEO jacks may also be connected to an additional component such as MD recorder, tape deck, etc.  
Note :  
• When Sherwood CD player such as CD-772, etc. is connected to the DIGI-LINK jack for system control, you should con-  
nect the CD player to the "CD" jacks of this unit.  
Because, if the PLAY button, etc. is pressed on the CD player, the CD is automatically selected as an input source on this  
unit. Then play, etc. starts.  
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4.  
CONNECTING PRE OUTS or MAIN INS  
• You can connect either a pre amplifier or a power amplifier to this receiver.  
• To achieve higher sound quality, connect the MAIN IN jacks to the pre amplifier and connect the speakers to this receiver.  
• To drive speakers with higher power output, connect the PRE OUT jacks to the power amplifier and connect it to speakers.  
Note:  
• When you do not use the MAIN IN and PRE OUT jacks, always connect these jacks with the supplied jumper plugs.  
5.  
CONNECTING DIGI LINK  
• Connect this jack to the DIGI LINK jack of Sherwood CD  
player such as CD-772, etc. that uses the DIGI LINK  
remote control system.  
6.  
CONNECTING SPEAKERS  
• Usally SPEAKER A terminals are used for only a pair of  
speakers. When you have another pair of speakers,  
SPEAKER B terminals can be used.  
• Be sure to connect speakers firmly and correctly accord-  
ing to the channel(left and right) and the polarity (+ and -).  
If the connections are faulty, no sound will be heard from  
the speakers, and if the polarity of the speaker connection  
is incorrect, the sound will be unnatural and lack bass.  
Notes :  
• For safe amplifier operation, use the speakers with  
impedance of over 4when you use only SPEAKER A or  
B terminals and use the speakers with impedance of over  
8when you use both SPEAKER A and B terminals.  
• Do not let the bare speaker wires touch each other or any  
metal part of this unit. This could damage this unit and/or  
the speakers.  
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7.  
SWITCHED AC OUTLET  
• This outlet is switched on (power-on mode) and off  
(standby mode) according to power control as follows  
(Maximum total capacity is 100 W (0.43A)).  
Standby mode - Switched AC outlet off  
Power-on mode - Switched AC outlet on  
8.  
AC INPUT  
• Plug the supplied AC input cord into this AC input  
and then into the wall AC outlet.  
Note:  
• Do not use an AC input cord other than the one sup-  
plied with this unit. The AC input cord supplied is  
designed for use with this unit and should not be  
used with any other device.  
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Front Panel & Remote Controls  
FRONT PANEL CONTROLS  
SYSTEM REMOTE CONTROLS  
• You can remotely control not only this receiver but also  
Sherwood compatible CD player.  
• For system remote control operation, first make the DIGI  
LINK connections.  
• In the DIGI LINK remote control system, if pressing PLAY,  
etc. on CD player, CD is selected automatically without  
selecting the input source and then PLAY, etc. starts.  
Notes:  
• Some functions for a CD player may not be available.  
• For details about functions, refer to the operating instruc-  
tions of each component.  
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1. POWER SWITCH  
Push this switch to enter the standby mode.  
To switch the power off, push again this switch.  
11. TONE BUTTON  
Press this button to listen to a program source with the  
tone effect or not.  
2. POWER ON BUTTON  
12. TREBLE UP/DOWN (/) BUTTONS  
Adjust the treble as desired with these buttons.  
In the standby mode, when this button is pressed, the  
unit is turned on to enter the operating mode.  
When the BAND button on the front panel is pressed,  
the unit is turned on, too.  
13. BASS UP/DOWN (/) BUTTONS  
Adjust the bass as desired with these buttons.  
3. STANDBY BUTTON  
In the operating mode, when this button is pressed, the  
unit is turned off to enter the stnadby mode.  
14. VOLUME CONTROL KNOB, UP/DOWN (/)  
BUTTONS  
Adjust the volume to a comfortable listening level with  
this knob or these buttons.  
4. STANDBY INDICATOR  
15. MUTE BUTTON  
Press this button to temporarily mute the sound.  
Press again to resume the previous sound level.  
5. HEADPHONE JACK  
Stereo headphones with a standard 1/4 inch plug can be  
plugged into this jack for private listening.  
16. MEMORY BUTTON  
Press this button to store stations.  
6. INPUT SELECTOR KNOB/BUTTONS  
Rotate the INPUT SELECTOR knob or press the button  
to select the desired input source.  
17. TUNING UP/DOWN (/▼, +/-) BUTTONS  
Press these buttons to tune in the desired stations.  
7. BAND BUTTON  
Each time this button is pressed, the band changes as  
follows.  
FM STEREO FM MONO AM  
18. PRESET UP/DOWN (/▼, +/-) BUTTONS  
Press this button to select the preset stations.  
19. PRESET SCAN BUTTON  
Press this button to scan the stations in the preset  
sequence.  
8. SPEAKER A, B SELECTOR BUTTONS/INDICATORS  
These buttons allow you to select various combinations  
of speakers as follows:  
20. MODE BUTTON  
To drive A speakers, press only the SPEAKER A but-  
ton ("A" indicator lights up).  
Each time this button is pressed, the mode changes as  
follows :  
SPEAKER (TONE : ON BASS TREBLE) or  
To drive B speakers, press only the SPEAKER B but-  
ton ("B" indicator lights up).  
To drive both A and B speakers, press the SPEAKER  
A and B buttons.("A" and "B" indicators light up).  
When using headphones for private listening, press  
these buttons to switch off the speaker A and B ("A"  
and "B" indicators go off).  
BALANCE ( TONE : OFF)  
21. SELECT KNOB  
At the desired mode, rotate this knob to adjust it as  
desired.  
9. DIMMER BUTTON  
Press this button to select the brightness of the  
fluorescent displays as desired.  
22. FLUORESCENT DISPLAY  
23. REMOTE SENSOR  
Each time this button is pressed, the brightness of all  
fluorescent displays of this unit and Sherwood CD  
player shch as CD-772, etc. connected by the DIGI  
LINK changes together as follows:  
24. RDS BUTTONS (Regional option for Europe, etc.)  
Use these buttons when listening to RDS broadcast.  
For more information, refer to pages 17~19.  
ON dimmer OFF  
25. CD PLAYER SECTION  
- to stop play  
10. SLEEP BUTTON  
Press this button to activate the sleep timer for a  
specified period of time.  
■■ - to pause play  
- to begin play  
REPEAT - to play a track, disc, etc. repeatedly  
REPEAT A/B - to play a specific part (A to B)repeatedly  
Each time this button is pressed, the sleep time  
changes as follows:  
, ■  
- to skip backward or forward  
10 20 30 ��90 OFF  
Unit : minutes  
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REMOTE CONTROL OPERATION RANGE  
• 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.  
LOADING BATTERIES  
1.  
Remove the cover.  
2.  
Load two batteries ("AAA" size, 1.5 V)  
matching the polarity.  
+
• Remove the batteries when they are not used  
for a long time.  
• Do not use the rechargeable batteries (Ni-Cd  
type).  
10  
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Operations  
LISTENING TO A PROGRAM SOURCE  
Before operation  
Push the POWER switch.  
• This unit enters the standby mode and the  
STANDBY indicator lights up in amber.  
This means that the receiver is not disconnected  
from the AC mains and a small amount of current is  
retained to support the operation readiness.  
• To switch the power off, push the POWER switch  
again. Then the power is cut off and the STANDBY  
indicator goes off.  
1.  
2.  
In the standby mode, turn the power on.  
When the POWER ON button on the remote con-  
trol or the BAND button on the front panel is  
pressed, this unit is turned on to enter the operat-  
ing mode (the STANDBY indicator lights up in  
blue).  
In the standby mode, if an INPUT SELECTOR but-  
ton on the remote control is pressed, the unit is  
turned on automatically and the desired input is  
selected.  
In the operating mode, when the STANDBY button  
on the remote control is pressed, then it enters the  
standby mode.  
Switch the desired speakers on.  
Then the corresponding speaker indicator ("A"  
or/and "B") 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.  
11  
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3.  
Select the desired input source.  
Each time the INPUT SELECTOR knob is rotated,  
the corresponding input source is selected as fol-  
lows:  
TUNER CDAUXTAPEVIDEOTVPHONO ←  
4.  
5.  
Operate the selected component for playback.  
Adjust the volume to a comfortable listening level.  
The volume can be adjusted between the range of  
-80 ~ +20 dB.  
or  
DOWN  
UP  
6.  
To mute the sound.  
“MUTE” lights up.  
To resume the previous sound level, press this but-  
ton again.  
When adjusting the volume, the mutting effect is  
turned off.  
7.  
To listen with the headphones.  
Be sure to switch off both A and B speakers.  
12  
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Listening in the desired tone mode  
1.  
Select the desired tone mode.  
Each time this button is pressed, the tone mode  
changes as follows :  
OFF : To listen to a program source without the  
tone effect.  
ON : To listen with the tone effect you adjusted.  
2.  
Adjust the tone (treble and bass) as desired.  
When adjusting the treble  
When you select the tone on mode, you can listen  
to a program source with the tone effect you  
adjusted.  
When pressing the TREBLE UP/DOWN(∧/∨) or  
BASS UP/DOWN(∧/∨) buttons, the tone level  
can be adjusted within the range of -10 ~ +10.  
Notes:  
Extreme settings at high volume may damage your  
speakers.  
In general, the bass and treble levels are adjusted  
to 0.  
Adjusting the modes as desired  
You can adjust the speaker, the tone and the balance modes as desired.  
1.  
Select the desired mode.  
Each time this button is pressed, the mode is  
displayed for several seconds and changes as  
follows :  
SPEAKER (TONE : ONBASSTREBLE) or  
BALANCE ( TONE : OFF) �  
2.  
Adjust the selected mode as desired.  
Each time the SELECT konb is rotated, you can  
adjust the selected mode as follows.  
Note :  
The mode display disappears, perform the above  
step 1 again.  
13  
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Continued  
When adjusting the SPEAKER mode.  
You can switch on or off the desired speakers.  
A B A + B OFF ←  
When adjusting the TONE mode.  
OFF : To listen to a program source without the tone effect.  
ON : To listen with the tone effect you adjusted.  
When adjusting the tone (TREBLE and BASS)  
You can adjust the tone level within the range of -10 ~ +10.  
Notes :  
Only when the TONE mode is adjusted to ON, you can adjust the TREBLE and the BASS.  
Extreme settings at high volume may damage your speakers.  
In general, the bass and treble levels are adjusted to 0.  
When adjusting the BALANCE  
You can adjust the sound volume balance between the left and the right speakers within the range of L10 ~  
R 10.  
Note :  
In general, the balance level is adjusted to 0.  
3.  
Repeat the above steps 1 and 2 until the modes are all adjusted as desired.  
14  
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LISTENING TO RADIO BROADCASTS  
Auto tuning  
1.  
Select the tuner.  
Band  
Frequency  
2.  
Select the disired band.  
• Each time this button is pressed, the band is  
changed as follows :  
FM STEREO FM MONO AM  
("  
" lights up)  
("  
" lights up)  
• When FM stereo broadcasts are poor because of  
weak broadcast signals, select the FM mono mode  
to reduce the noise, then FM broadcasts are repro-  
duced in monaural sound.  
• When pressing the BAND button or the TUNER  
button without selecting the tuner, the tuner will be  
selected automatically.  
3.  
Press the TUNING UP/DOWN (/▼, +/-) buttons for more than 0.5 seconds.  
• The tuner will now search until a station of sufficient  
strength has been found. The display shows the  
tuned frequency and " " or " ".  
• 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.  
• After selecting the tuner and the desired band,  
press the TUNING UP/DOWN (/, +/-) buttons  
repeatedly until the right frequency has been  
reached.  
15  
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Presetting radio stations  
• You can store up to 30 preferred stations in the memory.  
1.  
2.  
Tune in the desired station with auto or manual tuning.  
Press the MOMORY button.  
• The "M" (memory) is flickering for 5 seconds.  
3.  
Select the desired preset number (01~30) and press the MEMORY button.  
• The station has now been stored in the memory.  
• A stored frequency is erased from the memory by storing another frequency in its place.  
• If the "M" disappears, start again from the above step 2.  
4.  
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.  
• Tone (treble and bass) and balance settings.  
Tuning in preset stations  
Scanning preset stations in sequence  
• After selecting the tuner as an input source,  
select the desired preset number.  
• 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.  
16  
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RDS Tuner (Regional Option for some countries in Europe, etc.)  
LISTENING TO RDS BROADCASTS (FM ONLY)  
RDS (Radio Data System) is a method for sending information signals together with the transmitter signals. Your tuner is  
capable of translating these signals and putting the information on the display.  
These codes contain the following informations. Program Service name(PS), A list of Program Types(PTY), Traffic  
Announcement(TA), Clock Time(CT), Radio Text(RT).  
Note :  
In the other countries, RDS tuner function can not be available.  
RDS Search  
• Use this function to automatically search and receive the stations offering RDS services.  
1.  
In the FM mode, select the RDS search mode.  
• Each time this button is pressed, the search mode  
changes as follows;  
RDS Search PTY Search TP Search  
2.  
When "RDS Search" is displayed, press the TUNING UP/DOWN (/▼,+/-) buttons.  
• The tuner automatically searches stations offering  
RDS services and the station name is displayed.  
• If no other RDS station is found, “NO RDS” is dis-  
played.  
• When “RDS Search” is not displayed, repeat again  
from the above step 1.  
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PTY Search  
• Use this function to automatically search and receive the stations broadcasting the desired program type.  
1.  
In the FM mode, press the SEARCH MODE button twice.  
• “PTY Search” is displayed.  
2.  
When "PTY Search" is displayed, press the PTY SEL (</>) buttons to select a PTY station.  
• Each time these buttons are pressed, one of 29  
different types of programs is selected.  
(News, Current Affairs, Information, Sport, Education,  
Drama, Cultures, Science, Varied Speech, Pop  
Music, Rock Music, Easy Listening, Light Classics M,  
Serious Classics, Other Music, Weather & Metr,  
Finance, Children's Progs, Social Affairs, Religion,  
Phone In, Travel & Touring, Leisure & Hobby, Jazz  
Music, Country Music, National Music, Oldies Music,  
Folk Music, Documentary)  
• When “PTY Search” is not displayed, repeat again  
from the above step 1.  
3.  
Press the TUNING UP/DOWN (/▼, +/-) buttons to search the station.  
• The tuner automatically searches stations offering  
PTY services.  
• If no station is found, “No Programme” is displayed.  
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TP Search  
• Use this function to automatically search and receive the stations broadcasting the traffic program.  
1.  
In the FM mode, press the SEARCH MODE button three times.  
• “TP Search” is displayed.  
▲ ▼,  
+/-) buttons to search  
2.  
When "TP Search" is displayed, press the TUNING UP/DOWN (  
/
the station.  
• The tuner automatically searches for stations  
broadcasting the traffic program.  
• “NO Programme”is displayed if the signal is too  
weak or there are no stations broadcasting the  
traffic program.  
• When “TP Search” is not displayed, repeat again  
from the above step 1.  
DISPLAY  
In the FM mode,  
• Each time this button is pressed, the display mode  
changes as follows;  
Program  
Service name  
(PS)  
Program  
Type  
(PTY)  
Clock  
Time  
(CT)  
Radio  
Text  
(RT)  
Frequency  
• If the signals are too weak or no RDS service is  
available, “NO NAME”, “NO PTY”, “NO TIME” or  
“NO TEXT” will be displayed.  
19  
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RECORDING  
The volume, tone(bass, treble) and balance settings have no effect on the recording signals.  
When you select tuner, CD, AUX, TV or PHONO as a recording source, recording may be made on TAPE or  
VIDEO, or both simultaneously.  
Recording with TAPE  
1.  
Select the desired input as a recording source except for TAPE.  
2.  
3.  
Start recording on the TAPE.  
Start play on the desired input.  
Recording with VIDEO  
1.  
Select the desired input as a recording source except for VIDEO.  
2.  
3.  
Start recording on the VIDEO.  
Start play on the desired input.  
The audio signals from the desired input will be recorded onto the VIDEO.  
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OTHER FUNCTIONS  
Operating the sleep timer  
The sleep timer allows the system to continue to  
operate for a specified period of time before auto-  
matically 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 �� 90 OFF  
Unit : minutes  
When the sleep time is selected, fluorescent dis-  
plays of this unit and Sherwood CD player such as  
CD-772, etc. connected by the DIGI LINK are dimly  
lit.  
Adjusting the brightness of the fluorescent displays  
Each time this button is pressed, the brightness of  
all fluorescent displays of this unit and Sherwood  
CD player such as CD-772, etc. connected by the  
DIGI LINK changes together as follows:  
ON  
dimmer  
OFF  
In the display OFF mode, pressing any button will  
cancel the display OFF mode for several seconds  
to display the operation status.  
21  
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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 with your dealer. Under no circumstances should you repair the receiver yourself as this could invalidate  
the warranty.  
PROBLEM  
POSSIBLE CAUSE  
REMEDY  
• Connect the cord securely.  
• Check the outlet using a lamp or another  
appliance.  
No power  
• The AC input cord is disconnected.  
• Poor connection at AC wall outlet or the  
outlet is inactive.  
• Check the speaker connections.  
• Adjust the volume.  
No sound  
• The speaker cords are disconnected.  
• The volume is adjusted too low.  
• The MUTE button on the remote control is  
pressed to ON.  
• Press the MUTE button to cancel the mut-  
ing effect.  
• Press the SPEAKER A or B button to ON.  
• Select the desired input source correctly.  
• Make connections correctly.  
• Speakers are not switched on.  
• Incorrect selection of the input source.  
• Incorrect connections between the com-  
ponents.  
• Connect an antenna.  
Stations cannot be  
received  
• No antenna is connected.  
• The desired station frequency is not tuned  
in.  
• Tune in the desired station frequency.  
• Move the antenna and retry tuning.  
• Memorize the correct station frequency.  
• Memorize the stations again.  
• The antenna is in wrong position.  
Preset stations cannot be  
received  
• An incorrect station frequency has been  
memorized.  
• The memorized stations are cleared.  
• Connect an antenna.  
Poor FM reception  
• No antenna is connected.  
• The antenna is not positioned for the best  
reception.  
• Change the position of the antenna.  
Change the position of the antenna.  
Install an outdoor antenna.  
Continuous hissing noise  
during FM reception, espe-  
cially when a stereo broad-  
cast is received.  
• Weak signals.  
• Keep the receiver away from noise  
sources.  
Continuous or intermittent  
hissing noise during AM  
reception, especially at  
night.  
• Noise is caused by motors, fluorescent  
lamps or lightning, etc.  
• Install an outdoor AM antenna.  
• Make connections correctly.  
No recording  
• Incorrect selection between the compo-  
nents.  
• Operate each component correctly.  
• Incorrect operation of each component for  
playback and recording.  
• Replace the batteries.  
• Remove the obstacle.  
Remote control unit does  
not operate.  
• Batteries are not loaded or exhausted.  
• The remote sensor is obstructed.  
• Make proper DIGI LINK connections.  
Other Sherwood components  
do not react to remote control  
commands.  
• DIGI LINK connections are not made proper-  
ly.  
22  
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Specifications  
AMPLIFIER SECTION  
Power output, stereo mode, 8 , THD 0.08 %, 20 Hz~20 kHz .............................................................. 2X100 W  
Total harmonic distortion, R/O TO -3 dB, 20 Hz~20 kHz .......................................................................... 0.02 %  
Input sensitivity, 47 kΩ  
Phono (MM) .............................................................................................................................................. 2.5 mV  
Line (CD, Tape) ....................................................................................................................................... 200 mV  
Signal to noise ratio, IHF “A” weighted  
Phono (MM) ................................................................................................................................................ 80 dB  
Line (CD, Tape) ........................................................................................................................................ 100 dB  
Frequency response  
Phono (MM) RIAA, 10 Hz ~ 100 kHz ........................................................................................................ ±1 dB  
Line (CD, Tape), 10 Hz~100 kHz ............................................................................................................... ±3 dB  
Output level  
TAPE/VIDEO OUT, 2.2 k....................................................................................................................... 200 mV  
Bass/Treble control, 100 Hz/10 kHz ......................................................................................................... ±10 dB  
FM TUNER SECTION  
Tuning frequency range .............................................................................................................. 87.5~108.0 MHz  
Usable sensitivity, S/N 30 dB .................................................................................................................... 5 dBμV  
50 dB quieting sensitivity, mono/stereo .............................................................................................. 15/35 dBμV  
Signal to noise ratio, 60 dBμV, mono/stereo ........................................................................................... 70/65 dB  
Total harmonic distortion, 60 dBμV, 1 kHz, mono/stereo ....................................................................... 0.5/0.8 %  
Frequency response, 40 Hz~14 kHz .......................................................................................................... ±3 dB  
Stereo separation, 1 kHz ............................................................................................................................. 35 dB  
IF rejection ratio ........................................................................................................................................... 80 dB  
AM TUNER SECTION  
Tuning frequency range ................................................................................................................. 522~1611 kHz  
Usable sensitivity, S/N 20 dB ................................................................................................................. 55 dBμ/m  
Signal to noise ratio ..................................................................................................................................... 45 dB  
Selectivity ..................................................................................................................................................... 23 dB  
GENERAL  
Power supply ................................................................................................................................. 230 V ~ 50 Hz  
Power consumption .................................................................................................................................... 350 W  
Switched AC outlet ...................................................................................................... Total 100 W (0.43A) max.  
Dimensions (W×H×D, including protruding parts) ............ 440×160×415 mm(17-3/8×5-1/2×16-3/8 inches)  
Weight (Net) ............................................................................................................................. 10.7 kg(23.59 lbs)  
Note: Design and specifications are subject to change without notice for improvements.  
23  
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