13-1288.fm Page 1 Wednesday, July 14, 1999 6:02 PM
Cat. No. 13-1288
OWNER’S MANUAL
Please read before using this equipment.
SYSTEM 741
Mini Stereo Component System
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 3 Wednesday, July 14, 1999 6:02 PM
CASSETTE PLAYER FEATURES
Warning: This system employs a la-
ser light beam. Only a qualified ser-
vice person should remove the cover
or attempt to service this device, due
to possible eye injury.
Auto-Stop — automatically stops the
cassette tape when it finishes to pro-
tect the tape and tape-handling parts.
Multiple Source Recording — lets
you record from the CD player, radio,
or an external audio source (such as
another cassette tape or CD player).
Warning: To prevent fire or shock
hazard, do not expose this music sys-
tem to rain or moisture.
CAUTION
Mixed Recording — lets you record
onto a cassette tape while you talk
into a microphone and play prerecord-
ed music from the other cassette
deck.
RISK OF ELECTRIC SHOCK.
!
DO NOT OPEN.
CAUTION: TO REDUCE THE RISK OF
ELECTRIC SHOCK, DO NOT REMOVE
COVER OR BACK. NO USER-SERVICE-
ABLE PARTS INSIDE. REFER SERVIC-
ING TO QUALIFIED PERSONNEL.
Automatic Level Control (ALC) —
automatically adjusts the recording
level.
This symbol is intended to alert you
to the presence of uninsulated dan-
gerous voltage within the music
system’s enclosure that might be of
sufficient magnitude to constitute a
risk of electric shock. Do not open
the music system’s case.
Consecutive Tape Play — plays one
side each of two tapes, back to back.
Normal or High-Speed Dubbing —
lets you copy tapes at normal or twice
the normal speed.
This symbol is intended to inform
you that important operating and
maintenance instructions are in-
cluded in the literature accompany-
ing this music system.
!
Note: Most material on compact discs
and prerecorded tapes is copyrighted.
Unauthorized duplication of copyright-
ed material is a violation of the copy-
right laws of most countries and such
duplication may result in fines and/or
imprisonment. Note, however, that in
the United States, it is not a violation
of U.S. copyright laws for a consumer
to use an audio recording device to
duplicate musical recordings for non-
commercial (personal) use.
3
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 4 Wednesday, July 14, 1999 6:02 PM
CONTENTS
Connections ......................................................................................................... 6
Connecting the Speakers ................................................................................ 6
Connecting an External Audio Source ............................................................. 6
Connecting an External Antenna ..................................................................... 7
Connecting Power ........................................................................................... 7
Connecting Headphones ................................................................................. 8
Listening Safely ......................................................................................... 8
Basic Operation ................................................................................................... 9
Turning On/Off the System .............................................................................. 9
Adjusting the Balance ...................................................................................... 9
Using the 3-Band Frequency Equalizer ........................................................... 9
Using E-Bass ................................................................................................... 9
Radio Operation ................................................................................................. 10
CD Player Operation .......................................................................................... 11
Loading and Playing a CD ............................................................................. 11
Special CD Player Features .......................................................................... 12
Skip Search ............................................................................................. 12
Audible Search ........................................................................................ 12
Storing/Playing a Programmed Sequence .............................................. 12
Reviewing a Programmed Sequence ..................................................... 13
Editing a Programmed Sequence ........................................................... 13
Erasing a Programmed Sequence .......................................................... 13
Random Play .......................................................................................... 14
Cue ......................................................................................................... 14
Repeat .................................................................................................... 14
Time Display ........................................................................................... 15
Cassette Deck Operation .................................................................................. 16
Loading and Playing a Cassette Tape ........................................................... 16
Using Fast Forward/Rewind .................................................................... 17
Using Consecutive Play .......................................................................... 17
Dubbing and Recording ................................................................................. 17
Dubbing a Cassette Tape ........................................................................ 18
Recording from the Radio or CD Player ................................................. 19
Making a Mixed Recording ..................................................................... 19
Using an External Audio Source ...................................................................... 20
Listening to an External Audio Source .......................................................... 20
Recording from an External Audio Source .................................................... 20
4
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 5 Wednesday, July 14, 1999 6:02 PM
Care and Maintenance ...................................................................................... 21
CD Care Tips ................................................................................................ 22
CD Player Care Tips ..................................................................................... 22
Tape Tips ....................................................................................................... 22
Erasing a Cassette Tape .......................................................................... 22
Preventing Accidental Recording ........................................................... 23
Restoring Tape Tension and Sound Quality ........................................... 23
Cleaning the Tape-Handling Parts .......................................................... 23
The FCC Wants You to Know ....................................................................... 24
Specifications .................................................................................................... 25
5
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 6 Wednesday, July 14, 1999 6:02 PM
CONNECTIONS
Note: Complete all other connections
to the System 741 before you connect
it to power.
CONNECTING AN
EXTERNAL AUDIO
SOURCE
You can connect an external audio
source to your System 741, such as a
TV, CD player, or cassette deck, so
you can listen to that source through
the System 741.
CONNECTING THE
SPEAKERS
Plug the audio source’s left and right
line level audio wires into the AUX L
(left, white) and R (right, red) input
jacks on the back of the System 741.
(il-
(il-
1. Press open the pair of terminal
tabs marked SPEAKER/R (right)
on the back of the System 741.
To operate an external audio source
with the System 741, see “Using an
External Audio Source” on Page 20.
2. Insert one speaker’s red wire into
the red (+) terminal and its black
wire into the black (–) terminal and
release the tabs to close the ter-
minals.
3. Repeat Steps 1 and 2 to connect
the other speaker’s wires to the
terminals marked SPEAKER/L
(left).
6
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 7 Wednesday, July 14, 1999 6:02 PM
CONNECTING AN
CONNECTING POWER
EXTERNAL ANTENNA
After making all other connections,
plug your system’s AC power cord into
a standard AC outlet.
Your System 741 has two built-in an-
tennas. The AM antenna is internal,
and the power cord serves as the FM
antenna.
(il-
For improved reception, you can at-
tach an external FM or VHF TV anten-
na (not supplied) to the 75-ohm or
300-ohm terminals on the back of the
system.
Caution: Your system’s power cord
has a polarized plug (one blade is wid-
er than the other). If you have difficulty
inserting the plug into the outlet, do
not force it. Turn the plug over and try
again.
(il-
Note: If you are not connecting an ex-
ternal antenna, make sure the sys-
tem’s power cord is fully extended.
Note: If you use an outside VHF TV
antenna, you can use a signal splitter
to connect your radio and TV to the
same antenna.
Your local RadioShack store has a
wide selection of antennas, splitters,
and connectors.
7
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 8 Wednesday, July 14, 1999 6:02 PM
Listening Safely
CONNECTING
HEADPHONES
To protect your hearing, follow these
guidelines when you use headphones.
To listen privately, you can connect a
pair of stereo headphones with a /8-
inch plug (not supplied). Your local
RadioShack store has a wide selec-
tion of stereo headphones.
1
• Set the volume to the lowest set-
ting before you begin listening.
After you begin listening, adjust
the volume to a comfortable listen-
ing level.
To connect headphones, plug the
• Do not listen at extremely high
volume levels. Extended high-vol-
ume listening can lead to perma-
nent hearing loss.
PHONES
headphones into the
the front panel.
jack on
• Once you set the volume, do not
increase it. Over time your ears
adapt to the volume level, so a
volume level that does not cause
discomfort might still damage your
hearing.
(il-
Note: Connecting headphones auto-
matically disconnects the System
741’s speakers.
8
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 9 Wednesday, July 14, 1999 6:02 PM
BASIC OPERATION
Slide the control up to boost or down
to reduce the level. The selected fre-
quency range is not changed if you set
the control to the center position (0).
TURNING ON/OFF THE
SYSTEM
To turn on the system, simply press
POWER. The POWER indicator lights.
(il-
(il-
LOW (100 Hz) — Adjusts the frequen-
cies in the low bass range (low organ
notes and bass drums). Reduces rum-
ble or other low-frequency noise.
To turn off the system, press POWER
again. The POWER indicator turns off.
MID (1 kHz) — Adjusts the range of fre-
quencies where the ear is most sensi-
tive (vocals).
ADJUSTING THE
BALANCE
To adjust the sound balance between
the left and right speakers, turn BAL-
ANCE toward L (left) or R (right).
HIGH (10 kHz) — Adjusts high frequen-
cy sounds (cymbals, flutes, and vio-
lins).
(il-
USING E-BASS
Press E-BASS to the in position for en-
hanced bass sound. The E-BASS indi-
cator lights.
USING THE 3-BAND
FREQUENCY
EQUALIZER
(il-
You can use the 3-BAND FREQUENCY
EQUALIZER to customize the sound
you hear through the speakers. Each
of the three slide controls lets you ad-
just the sound level in a specific fre-
quency range.
Press E-BASS to the out position for
normal bass sound.
9
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 10 Wednesday, July 14, 1999 6:02 PM
RADIO OPERATION
1. Press TUNER. The TUNER indica-
4. Set MONO/STEREO for the desired
tor lights.
sound.
(il-
(il-
2. Set BAND to AM or FM.
Notes:
• If FM reception is strong, set
MONO/STEREO to STEREO to
receive the signal in stereo. The
FM STEREO indicator lights
when you receive an FM broad-
cast in stereo.
(il-
3. Adjust TUNING to the desired sta-
tion.
(il-
(il-
• If FM stereo reception is weak,
set MONO/STEREO to MONO.
The sound is monaural, but the
reception should improve.
• For the best AM reception, sim-
ply change the position of the
system.
5. Adjust VOLUME, BALANCE, and
the 3-BAND FREQUENCY EQUAL-
IZER for the desired sound.
• For the best FM reception, fully
uncoil the power cord or con-
nect an external FM antenna.
6. Press E-BASS to boost low fre-
quency sounds for an emphasized
bass sound.
10
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 11 Wednesday, July 14, 1999 6:02 PM
CD PLAYER OPERATION
LOADING AND PLAYING
A CD
(il-
1. Press CD. The CD indicator lights,
00 appears briefly, then dISC
appears on the display.
Caution: Never force the CD
compartment door to close. You
might damage the CD player’s
loading mechanism or the CD.
(il-
5. Press PLAY/PAUSE to begin play.
Track number 01and the elapsed
play time appear on the display.
The CD player plays all the tracks
in order.
2. Press
OPEN/CLOSE. OPEN
appears on the display, and the
CD compartment opens.
(il-
(il-
PLAY/PAUSE to stop
Note: Press
the CD temporarily.
the display. Press PLAY/PAUSE
3. Carefully place a CD in the com-
partment with the label facing up.
appears on
again to play the CD.
pears.
disap-
6. Adjust VOLUME, BALANCE, and
the 3-BAND FREQUENCY EQUAL-
IZER for the desired sound.
(il-
7. Press E-BASS to boost low fre-
quency sounds for an emphasized
bass sound.
4. Press OPEN/CLOSE to close the
CD compartment. The display
temporarily shows 00, then
shows the CD’s total number of
tracks and total playing time.
8. The CD automatically stops when
it reaches the end. Press STOP to
stop playing the CD before it auto-
matically stops.
11
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 12 Wednesday, July 14, 1999 6:02 PM
Audible Search
SPECIAL CD PLAYER
FEATURES
To search forward or backward during
SKIP/
SKIP/
play, press and hold down
Skip Search
SEARCH
or
SEARCH
. The CD plays rapidly and
You can skip forward or backward
through the tracks on a CD or tracks in
a programmed sequence to quickly
find a desired track.
you hear the music at a higher speed
but lower volume.
Release the button to resume normal
play.
(il-
Storing/Playing a
Programmed Sequence
You can program the CD player to
play up to 21 tracks in any order you
choose, and you can program the
same track to play more than once.
• To skip to the beginning of the
next track during play, press and
SKIP/SEARCH
release
.
• To return to the beginning of the
current track during play, press
1. While the CD player is stopped,
PROGRAM
press
.
The display
SKIP/SEARCH
and release
.
shows 00 P: 01(memory loca-
tion 1).
• To skip forward or backward to
additional tracks, repeatedly press
SKIP/SEARCH
or
SKIP/SEARCH
(il-
until the desired
track number appears on the dis-
play.
Notes:
• If you press
SKIP/SEARCH
SKIP/SEARCH
2. Press
or
SKIP/SEARCH
to find the
while the first track is playing, the
first track replays.
track you want to program into
memory location 1.
SKIP/SEARCH
• If you press
while the last track is playing, it
has no effect.
12
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 13 Wednesday, July 14, 1999 6:02 PM
3. Press PROGRAM again to store
the track in the current memory
location. The next memory loca-
tion appears.
The CD’s total number of tracks and
playing time appear.
To play the programmed se-
Note:
quence again, press PROGRAM then
PLAY/PAUSE.
(il-
Reviewing a Programmed
Sequence
To review a programmed sequence,
while play is stopped, repeatedly
press PROGRAM. The track number
and memory position number of each
stored track appear on the display.
4. Repeat Steps 2–3 for each track
you want to program.
If you program more than
Note:
21 tracks, the additional tracks
replace the currently pro-
grammed tracks.
Editing a Programmed
Sequence
5. Press PLAY/PAUSE. PGMappears
on the display and the CD player
plays the tracks in the order you
programmed.
To edit the programmed sequence, re-
peatedly press PROGRAM until the
stored track you want to change ap-
pears on the display.
Notes:
• Press PLAY/PAUSE to temporarily
stop the music. Press PLAY/
PAUSE again to resume play.
Press SKIP/SEARCH
or
SKIP/SEARCH until the new track ap-
pears on the display, then press PRO-
GRAM to store the new track in place
of the old one.
• Press SKIP/SEARCH
SKIP/SEARCH to move
the programmed
sequence during play.
and
through
Erasing a Programmed
Sequence
Programmed play automatically stops
at the end of the last programmed
track.
To erase a programmed sequence,
you can press OPEN/CLOSE or POW-
ER before, during, or after pro-
grammed play.
To stop the CD player at any time dur-
ing programmed play, press STOP.
13
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 14 Wednesday, July 14, 1999 6:02 PM
• During random play, you can use
to advance to the next ran-
Random Play
You can set the CD player to play a
CD’s tracks in random order.
domly selected track, use
to
return to the beginning of the cur-
rent track, or repeat the current
track (see “Repeat” below).
1. Before or during play, press RAN-
DOM so RNDappears on the dis-
play.
To cancel random play and resume
normal play without stopping, simply
press RANDOM. RNDdisappears from
the display and the CD player re-
sumes normal play.
(il-
Cue
To start playing a CD from a desired
track, before you begin play or during
2. If necessary, press PLAY/PAUSE
to begin random play. The CD
player randomly selects and plays
all the tracks on the CD once,
then automatically stops.
pause,
SEARCH
repeatedly
or
press
SKIP/
SKIP/SEARCH
until the desired track number appears
on the display. Then press PLAY/
PAUSE to play the track.
RANDOM while
Note: If you select
a track is playing, the CD player
plays the track to the end, then
randomly selects and plays all the
tracks on the CD once.
Repeat
You can continuously repeat a single
track, all the tracks on a CD, or an en-
tire programmed sequence of tracks
(see “Storing/Playing a Programmed
Sequence” on Page 12).
3. To stop the CD player at any time
during random play, simply press
STOP.
Notes:
• The currently selected track num-
ber and its elapsed play time
appear as the CD plays.
To continuously repeat a single track,
press REPEAT before or during play.
appears on the display.
REP1
• To skip to the next randomly
selected track, press
SEARCH
SKIP/
(il-
.
14
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 15 Wednesday, July 14, 1999 6:02 PM
To continuously repeat all tracks on
the CD, press REPEAT twice before or
Time Display
during play.
play.
appears on the dis-
While a track is playing, the display
shows the current track’s number and
the elapsed playing time since the
track began playing.
REP
To continuously repeat an entire pro-
grammed sequence, first program the
tracks you want to play, then press
REPEAT twice before or during play.
(il-
appears on the display.
REP
To cancel repeat play during or after
play, repeatedly press REPEAT until
and
disappear from the
REP
REP1
Press TIME once to display the current
track’s remaining playing time.
display. If repeat is cancelled during
play, the CD player resumes normal
play.
: Pressing STOP cancels repeat
Note
play.
(il-
Press TIME twice to display the CD’s
total remaining playing time.
(il-
Press TIME three times to return to the
original display.
15
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 16 Wednesday, July 14, 1999 6:02 PM
CASSETTE DECK OPERATION
You can play one side of a cassette
tape in either TAPE 1 or TAPE 2 and
you can record tapes in TAPE 2.
3. Load the cassette with the open
edge down, the full reel on the left,
and the side you want to play fac-
ing you.
LOADING AND PLAYING
A CASSETTE TAPE
(il-
Notes:
• We recommend C-30, C-60, and
C-90 tapes. Avoid using C-120
tapes because they are thin and
can easily get tangled in tape
mechanisms.
4. Close the cassette compartment
door until it clicks.
5. Press PLAY.
• Before playing or recording any
cassette tape, take up any slack in
the tape by turning one of the cas-
sette’s hubs with a pencil. If you
do not remove excess slack, the
tape might become tangled in the
record/playback mechanism.
(il-
PAUSE to tempo-
rarily stop tape play. To resume
play, press PAUSE again.
Note: Press
1. Press TAPE. The TAPE indicator
lights.
6. Adjust VOLUME, BALANCE, and
the 3-BAND FREQUENCY EQUAL-
IZER for the desired sound.
(il-
7. Press E-BASS to boost low fre-
quency sounds for an emphasized
bass sound.
2. Open either cassette compart-
8. The cassette stops automatically
when it reaches the end. Press
STOP/EJECT to stop tape play
sooner.
ment by pressing STOP/EJECT.
(il-
Note: When the tape ends, turn it over
to listen to the other side.
16
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 17 Wednesday, July 14, 1999 6:02 PM
The tape player automatically stops
when the cassette in TAPE 2 reaches
end.
Using Fast Forward/Rewind
Press FAST-F to fast-forward or RE-
WIND to rewind the cassette. To stop
fast forward or rewind before the end
of the tape, simply press STOP/EJECT.
To stop consecutive play before the
tape player automatically stops, press
STOP/EJECT on both decks.
(il-
DUBBING AND
RECORDING
You can use the System 741 to dub
(copy) another tape, or record from
the radio, CD player, or an external
audio source (see “Recording from an
External Audio Source” on Page 20).
Using Consecutive Play
You can play one side of a cassette in
TAPE 1, then immediately play one
side of a cassette in TAPE 2.
Notes:
• The VOLUME, E-BASS, BAL-
ANCE, and 3-BAND FREQUENCY
EQUALIZER settings do not affect
your recordings. The system auto-
matically adjusts those levels.
1. Load the cassette you want to
play first into TAPE 1 and the one
you want to play second into
TAPE 2.
• To record on a cassette, its erase-
protection tabs must be in place
(see “Preventing Accidental Rec-
ording” on Page 23).
(il-
2. Press PLAY on TAPE 1. The cas-
sette in TAPE 1 plays.
3. Press PAUSE then PLAY on TAPE
2. When TAPE 1 reaches the end,
the cassette in TAPE 2 plays.
17
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 18 Wednesday, July 14, 1999 6:02 PM
5. Press PAUSE and RECORD on
TAPE 2. Both PAUSE and
RECORD lock down.
Dubbing a Cassette Tape
You can dub at the tape’s normal play-
ing speed or at twice the normal
speed. If you dub at normal speed,
you can listen as you record.
6. Press PLAY on TAPE 1. TAPE 1
begins playback, PAUSE releases
on TAPE 2, and dubbing begins.
1. Press TAPE.
Notes:
2. Load the pre-recorded cassette
you want to record from into TAPE
1. Be sure the side you want to
record from is facing you.
• To skip an unwanted section on
TAPE 1, press PAUSE on TAPE
2 while the unwanted section
plays. To resume dubbing,
press PAUSE again.
3. Load a blank cassette (or one you
want to record over) into TAPE 2
with the side you want to record
on facing you.
• To monitor the tape you are
copying, adjust VOLUME.
Dubbing automatically stops when the
cassette in TAPE 2 reaches its end.
4. Set DUBBING to NORMAL or HIGH.
If the cassette in TAPE 1 continues to
play, press STOP/EJECT. To stop dub-
bing before TAPE 2 stops automati-
cally, press STOP/EJECT on both
cassette compartments.
(il-
• Set DUBBING to NORMAL to
dub at normal speed. This pro-
duces the highest quality
results.
• Set DUBBING to HIGH to dub at
approximately twice the normal
speed. This produces the fast-
est results, but the quality is
slightly reduced.
18
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 19 Wednesday, July 14, 1999 6:02 PM
1. Press TAPE. The TAPE indicator
Recording from the Radio or
CD Player
lights.
2. Load the pre-recorded cassette
you want to record from into TAPE
1. Be sure the side you want to
record from is facing you.
Press TUNER and tune to the desired
station, or press CD and load the de-
sired CD.
3. Load a blank cassette (or one you
want to record over) into TAPE 2
with the side you want to record
on facing you.
Insert a cassette you want to record
onto into TAPE 2, then press PAUSE
and RECORD. When the desired se-
lection on the radio or CD player
plays, release PAUSE.
4. Insert the microphone into the MIC
jack.
Note: Sometimes AM broadcasts pro-
duce a hum or whistling sound that
you can hear while listening to a re-
cording from the radio. To eliminate or
reduce this sound, set BEAT CUT on
the back of the system to the position
that gives you the best quality record-
ing.
5. Press PAUSE and RECORD on
TAPE 2.
6. When you are ready to record,
press PLAY on TAPE 1.
You can sing or speak along with
the cassette playing in TAPE 1.
Your voice and the music will be
mixed and recorded on the cas-
sette in TAPE 2.
(il-
Note: To avoid feedback, adjust
VOLUME.
Recording stops automatically when
the cassette in TAPE 2 ends, or you
can press STOP/EJECT on TAPE 1 or
TAPE 2 to stop recording at any time.
Making a Mixed Recording
You can connect a microphone with a
1/8-inch plug into the MIC jack so you
can record on TAPE 2 while you
speak into the microphone and play a
pre-recorded tape in TAPE 1. Your lo-
cal RadioShack store carries a wide
selection of microphones.
19
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 20 Wednesday, July 14, 1999 6:02 PM
USING AN EXTERNAL AUDIO SOURCE
If you connected an external audio
RECORDING FROM AN
EXTERNAL AUDIO
SOURCE
source, such as a TV, VCR, or an ex-
ternal CD player or cassette deck, you
can use your System 741 to listen to
or record audio from that source.
VOLUME, E-BASS, BAL-
Note: The
ANCE, and 3-BAND FREQUENCY
EQUALIZER settings do not affect your
recordings. The system automatically
adjusts those levels.
LISTENING TO AN
EXTERNAL AUDIO
SOURCE
1. Turn VOLUME to MIN, and make
sure the external audio source’s
volume control (if any) is also set
to its lowest level.
1. Turn VOLUME to MIN, and make
sure the external audio source’s
volume control (if any) is also set
to its lowest level.
2. Press AUX. The AUX indicator
2. Press AUX. The AUX indicator
lights.
lights.
3. Insert a cassette you want to
record on into TAPE 2.
4. Press RECORD to begin record-
(il-
ing.
5. Start playback on the external
audio source.
Note: To pause the tape during
recording, press PAUSE. To
resume recording, press PAUSE
again.
3. Start playback on the external
audio source.
4. Adjust VOLUME, BALANCE, and
the 3-BAND FREQUENCY EQUAL-
IZER for the desired sound.
6. To stop the tape at any time dur-
ing recording, press STOP/EJECT.
5. Press E-BASS to boost low fre-
quency sounds for an emphasized
bass sound.
7. Stop playback on the external
audio source.
20
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 21 Wednesday, July 14, 1999 6:02 PM
CARE AND MAINTENANCE
Your Optimus System 741 Mini Stereo Component System is an example of supe-
rior design and craftsmanship. The following suggestions will help you care for the
system so you can enjoy it for years.
Keep the system dry. If it gets wet, wipe it dry immediately. Liq-
uids might contain minerals that can corrode the electronic cir-
cuits.
Use and store the system only in normal temperature environ-
ments. Temperature extremes can shorten the life of electronic
devices, and distort or melt plastic parts.
Handle the system gently and carefully. Dropping it can damage
the circuit boards and can cause the system to work improperly.
Keep the system away from dust and dirt, which can cause pre-
mature wear of parts.
Wipe the system with a damp cloth occasionally to keep it look-
CLEANER
ing new. Do not use harsh chemicals, cleaning solvents, or
strong detergents to clean the system.
Modifying or tampering with the system’s internal components can cause a mal-
function and might invalidate its warranty and void your FCC authorization to oper-
ate it. If your system is not performing as it should, take it to your local RadioShack
store for assistance.
21
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 22 Wednesday, July 14, 1999 6:02 PM
CD CARE TIPS
CD PLAYER CARE TIPS
Although a CD is very durable, you
should handle it with care. We recom-
mend the following precautions.
• To avoid damaging the CD player,
do not place anything but a CD in
the CD drawer.
• Keep the CD in its protective case
or sleeve when you are not play-
ing it.
• Moving the CD player suddenly
from a cold place to a warmer one
can cause moisture to form on the
pickup lens and disrupt operation.
If this happens, unplug the CD
player then wait about one hour
before plugging it back in and
playing the CD.
• Keep the CD clean. Your local
RadioShack store sells suitable
CD cleaner kits.
• Keep the CD dry. Even a single
drop of moisture can act as a lens
and affect the laser beam’s focus.
If the CD gets wet, wipe it with a
soft, dry cloth before playing it.
• If the System 741 is subjected to a
sudden shock or jolt during play,
the CD’s rotation speed might
suddenly change, and the music
might be briefly interrupted. This is
not a malfunction.
• Do not write on either side of a
CD, especially the non-label side.
• Handle the CD by its edge to
avoid fingerprints and surface
scratches that can prevent the
laser from accurately reading the
CD.
TAPE TIPS
Erasing a Cassette Tape
• Do not store CDs in high-tempera-
ture, high-humidity locations.
To erase a previously recorded section
of a tape, simply record over it. To
erase the entire cassette tape, let the
tape record to the end with no source
playing.
• Remove any loaded CD from the
CD player before moving the Sys-
tem 741 to prevent damaging the
CD.
You can quickly erase both sides of a
cassette tape using a bulk tape eraser
(such as Cat. No. 44-232, not sup-
plied), available at your local Ra-
dioShack store.
• To repair scratches on the CD sur-
face, use a CD scratch repair kit
(such as “Scratch ’n Fix,” Cat. No.
42-127).
22
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 23 Wednesday, July 14, 1999 6:02 PM
Preventing Accidental
Recording
Restoring Tape Tension and
Sound Quality
Cassette tapes have two protection
tabs — one for each side. To protect a
recording from being accidentally re-
corded over, use a screwdriver to re-
move one or both of the cassette’s
protection tabs.
After you play a cassette tape several
times, the tape might become tightly
wound on the reels. This can cause
playback sound quality to deteriorate.
To restore the sound quality, fast-for-
ward the tape from the beginning to
the end of one side, then completely
rewind it. Then loosen the tape reels
by gently tapping each side of the cas-
sette’s outer shell on a flat surface.
(il-
Caution: Be careful not to damage
the cassette when tapping it. Do not
touch the exposed tape or allow any
sharp objects near the cassette.
Note: Removing the protection tabs
does not prevent a bulk eraser from
erasing a cassette tape.
Cleaning the Tape-Handling
Parts
If you want to record on a tape side af-
ter you have removed the protection
tab, place a piece of strong plastic
tape over that side’s protection hole.
Dirt, dust or particles of the tape’s
coating can accumulate on the tape
deck’s tape heads and other parts that
the tape touches. This can greatly re-
duce the performance of the cassette
player.
Be sure you cover only the hole origi-
nally covered by the protection tab.
(il-
23
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 24 Wednesday, July 14, 1999 6:02 PM
Use the following cleaning procedure
after every 20 hours of tape player op-
eration.
Your local RadioShack store sells a
complete line of cassette deck clean-
ing supplies.
1. Disconnect power.
2. Open the cassette compartment
doors on TAPE 1 and TAPE 2.
THE FCC WANTS YOU
TO KNOW
3. Press PLAY on TAPE 1 and TAPE
2 to expose the tape-handling
parts.
This system complies with limits for a
Class B digital device as specified in
Part 15 of FCC Rules. These limits
provide reasonable protection against
radio or TV interference in a residen-
tial area. However, your system might
cause TV or radio interference even
when it is operating properly. To elimi-
nate interference, you can try one or
more of the following corrective mea-
sures:
4. Use a cotton swab dipped in
denatured alcohol or tape head
cleaning solution to clean the
record and play heads, pinch
roller, capstan, tape guides, and
erase head.
• Reorient or relocate the receiving
antenna
• Increase the distance between the
system and the radio or TV
(il-
• Use outlets on different electrical
circuits for the system and the
radio or TV
If the problem continues, take your
system to your local RadioShack store
for assistance.
5. When you finish cleaning, press
STOP/EJECT on TAPE 1 and
TAPE 2 and close the cassette
compartment doors, then recon-
nect power.
24
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 25 Wednesday, July 14, 1999 6:02 PM
SPECIFICATIONS
Cassette Player:
Tape Speed ............................................................................................ 17/8 ips
Wow and Flutter (WRMS) .......................................................................0.35%
Frequency Response (at –3 dB) .................................................100 Hz–8 kHz
Recording System ................................................................................ AC Bias
Erase System ........................................................................................ Magnet
CD Player:
Number of Programmable Tracks ................................................................. 21
Tracks Frequency Response (at –3 dB) ......................................60 Hz–15 kHz
Dynamic Range ........................................................................................70 dB
Signal-to-Noise Ratio (JIS-A) ...................................................................60 dB
Harmonic Distortion (at 1 kHz) .....................................................................1%
Separation (at 1 kHz) ...............................................................................40 dB
Sampling Frequency .........................................................................176.5 kHz
Quantization Number .................................................................................1-Bit
Linear/Channel Oversampling .............................................................. 4 Times
Pick-Up System .....................................................................................3 Beam
Optical Source ................................................................. Semiconductor Laser
Wavelength ................................................................................... 760–820 nm
25
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 26 Wednesday, July 14, 1999 6:02 PM
General:
Microphone (Monaural) Impedance ...................................................600 ohms
Headphones (Stereo) Impedance ....................................................16–32 ohm
Power Output .................................................................4.5 Watts per Channel
Dimensions (HWD) ....................................................121/8 ¥ 105/8 ¥ 91/4 Inches
(308 ¥ 270 ¥ 235 mm)
Weight: (Main Unit) ..................................................................................10 lb
(4.5 kg)
(Speakers) ...............................................................................3.15 lb
(1.4 kg)
Power Supply .................................................................. 120V AC 60 Hz, 38W
Tuning Range ..................................................................... AM: 530–1710 kHz
FM: 88–108 MHz
Graphic Frequency Equalizer ....................................................100 Hz ±10 dB
1 kHz ±10 dB
10 kHz ±10 dB
Speaker Size ............................................................................ 5-Inch Speaker
Specifications are typical; individual units might vary. Specifications are subject to
change and improvement without notice.
26
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 27 Wednesday, July 14, 1999 6:02 PM
NOTES
27
Download from Www.Somanuals.com. All Manuals Search And Download.
13-1288.fm Page 28 Wednesday, July 14, 1999 6:02 PM
RadioShack Limited Warranty
This product is warranted against defects for 90 days from date of purchase from
RadioShack company-owned stores and authorized RadioShack franchisees and deal-
ers. Within this period, we will repair it without charge for parts and labor. Simply bring
your RadioShack sales slip as proof of purchase date to any RadioShack store. War-
ranty does not cover transportation costs. Nor does it cover a product subjected to mis-
use or accidental damage.
EXCEPT AS PROVIDED HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES
AND ANY IMPLIED WARRANTIES ARE LIMITED IN DURATION TO THE DURATION
OF THE WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. Some states do
not permit limitation or exclusion of implied warranties; therefore, the aforesaid limita-
tion(s) or exclusion(s) may not apply to the purchaser.
This warranty gives you specific legal rights and you may also have other rights which vary from
state to state.
We Service What We Sell
10/95
RadioShack
A Division of Tandy Corporation
Fort Worth, Texas 76102
6A6
Printed in Hong Kong
Download from Www.Somanuals.com. All Manuals Search And Download.
|