Optimus SYSTEM 741 User manual

Cat. No. 13-1288
OWNER’S MANUAL
Please read before using this equipment.
SYSTEM 741
Mini Stereo Component System
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2
FEATURES
Your Optimus System 741 Mini Stereo
Component System offers all of the
versatile features you need for excel-
lent stereo sound and entertainment in
one compact package. The System
741 includes an AM/FM stereo tuner,
3-band frequency equalizer, CD play-
er with a 21-track programmable
memory, dual cassette recorder with
auto-stop, and two speakers.
SYSTEM FEATURES
E-Bass Control — boosts low fre-
quency sounds for an emphasized
bass sound.
3-Band Frequenc
y
Equalizer — lets
you adjust the sound to match your lis-
tening area’s unique acoustics.
Auxiliar
y
Inputs — let you play an
auxiliary audio source through your
system.
Supplied Speakers — let you imme-
diately begin listening to your system’s
sound.
Headphone Jack — lets you privately
listen to your system.
CD PLAYER FEATURES
Skip Search — lets you quickly skip
through a CD’s tracks so you can lo-
cate a particular one.
Audible Search — lets you quickly
play any track on a CD (forward or
backward) so you can locate a desired
section.
Pro
g
rammable Pla
y
— lets you pro-
gram and play up to 21 tracks in any
order.
Random Pla
y
— lets you play a CD’s
tracks in random order.
Repeat Pla
y
— lets you automatically
repeat a single track, all tracks on the
CD, or a programmed sequence of
tracks.
3- or 5-Inch CD Compatible — lets
you play either 3- or 5-inch CDs on the
System 741.
© 1996 Tandy Corporation.
All Rights Reserved.
Optimus is a registered trademark used by Tandy Corporation.
RadioShack is a trademark used by Tandy Corporation.
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CASSETTE PLAYER FEATURES
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).
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.
Automatic Level Control (ALC) —
automatically adjusts the recording
level.
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.
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.
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.
Warning: To prevent fire or shock
hazard, do not expose this music sys-
tem to rain or moisture.
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.
This symbol is intended to inform
you that important operating and
maintenance instructions are in-
cluded in the literature accompany-
ing this music system.
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.
CAUTION
!
!
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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 Pla
y
er 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
Usin
g
an External Audio Source ...................................................................... 20
Listening to an External Audio Source .......................................................... 20
Recording from an External Audio Source .................................................... 20
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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
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CONNECTIONS
Note: Complete all other connections
to the System 741 before you connect
it to power.
CONNECTING THE
SPEAKERS
1. Press open the pair of terminal
tabs marked SPEAKER/R (right)
on the back of the System 741.
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).
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.
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.
To operate an external audio source
with the System 741, see “Using an
External Audio Source” on Page 20.
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CONNECTING AN
EXTERNAL ANTENNA
Your System 741 has two built-in an-
tennas. The AM antenna is internal,
and the power cord serves as the FM
antenna.
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.
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.
CONNECTING POWER
After making all other connections,
plug your system’s AC power cord into
a standard AC outlet.
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.
Note: If you are not connecting an ex-
ternal antenna, make sure the sys-
tem’s power cord is fully extended.
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CONNECTING
HEADPHONES
To listen privately, you can connect a
pair of stereo headphones with a 1/8-
inch plug (not supplied). Your local
RadioShack store has a wide selec-
tion of stereo headphones.
To connect headphones, plug the
headphones into the PHONES jack on
the front panel.
Note: Connecting headphones auto-
matically disconnects the System
741’s speakers.
Listening Safely
To protect your hearing, follow these
guidelines when you use headphones.
• 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.
• Do not listen at extremely high
volume levels. Extended high-vol-
ume listening can lead to perma-
nent hearing loss.
• 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.
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BASIC OPERATION
TURNING ON/OFF THE
SYSTEM
To turn on the system, simply press
POWER. The POWER indicator lights.
To turn off the system, press POWER
again. The POWER indicator turns off.
ADJUSTING THE
BALANCE
To adjust the sound balance between
the left and right speakers, turn BAL-
ANCE toward L(left) or R(right).
USING THE 3-BAND
FREQUENCY
EQUALIZER
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.
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).
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.
MID (1 kHz) — Adjusts the range of fre-
quencies where the ear is most sensi-
tive (vocals).
HIGH (10 kHz) — Adjusts high frequen-
cy sounds (cymbals, flutes, and vio-
lins).
USING E-BASS
Press E-BASS to the in position for en-
hanced bass sound. The E-BASS indi-
cator lights.
Press E-BASS to the out position for
normal bass sound.
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RADIO OPERATION
1. Press TUNER. The TUNER indica-
tor lights.
2. Set BAND to AM or FM.
3. Adjust TUNING to the desired sta-
tion.
• For the best AM reception, sim-
ply change the position of the
system.
• For the best FM reception, fully
uncoil the power cord or con-
nect an external FM antenna.
4. Set MONO/STEREO for the desired
sound.
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.
• If FM stereo reception is weak,
set MONO/STEREO to MONO.
The sound is monaural, but the
reception should improve.
5. Adjust VOLUME, BALANCE, and
the 3-BAND FREQUENCY EQUAL-
IZER for the desired sound.
6. Press E-BASS to boost low fre-
quency sounds for an emphasized
bass sound.
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CD PLAYER OPERATION
LOADING AND PLAYING
A CD
1. Press CD. The CD indicator lights,
00 appears briefly, then dISC
appears on the display.
2. Press OPEN/CLOSE. OPEN
appears on the display, and the
CD compartment opens.
3. Carefully place a CD in the com-
partment with the label facing up.
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.
Caution: Never force the CD
compartment door to close. You
might damage the CD player’s
loading mechanism or the CD.
5. Press PLAY/PAUSE to begin play.
Track number 01 and the elapsed
play time appear on the display.
The CD player plays all the tracks
in order.
Note: Press PLAY/PAUSE to stop
the CD temporarily. appears on
the display. Press PLAY/PAUSE
again to play the CD. disap-
pears.
6. Adjust VOLUME, BALANCE, and
the 3-BAND FREQUENCY EQUAL-
IZER for the desired sound.
7. Press E-BASS to boost low fre-
quency sounds for an emphasized
bass sound.
8. The CD automatically stops when
it reaches the end. Press STOP to
stop playing the CD before it auto-
matically stops.
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SPECIAL CD PLAYER
FEATURES
Skip Search
You can skip forward or backward
through the tracks on a CD or tracks in
a programmed sequence to quickly
find a desired track.
• To skip to the beginning of the
next track during play, press and
release SKIP/SEARCH .
• To return to the beginning of the
current track during play, press
and release SKIP/SEARCH.
• To skip forward or backward to
additional tracks, repeatedly press
SKIP/SEARCH or
SKIP/SEARCH until the desired
track number appears on the dis-
play.
Notes:
• If you press SKIP/SEARCH
while the first track is playing, the
first track replays.
• If you press SKIP/SEARCH
while the last track is playing, it
has no effect.
Audible Search
To search forward or backward during
play, press and hold down SKIP/
SEARCH or
SKIP/
SEARCH. The CD plays rapidly and
you hear the music at a higher speed
but lower volume.
Release the button to resume normal
play.
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.
1. While the CD player is stopped,
press PROGRAM. The display
shows
00 P: 01 (memory loca-
tion 1).
2. Press SKIP/SEARCH or
SKIP/SEARCH to find the
track you want to program into
memory location 1.
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13
3. Press PROGRAM again to store
the track in the current memory
location. The next memory loca-
tion appears.
4. Repeat Steps 2–3 for each track
you want to program.
Note: If you program more than
21 tracks, the additional tracks
replace the currently pro-
grammed tracks.
5. Press PLAY/PAUSE. PGM appears
on the display and the CD player
plays the tracks in the order you
programmed.
Notes:
•Press
PLAY/PAUSE to temporarily
stop the music. Press PLAY/
PAUSE again to resume play.
•Press SKIP/SEARCH and
SKIP/SEARCH to move
through the programmed
sequence during play.
Programmed play automatically stops
at the end of the last programmed
track.
To stop the CD player at any time dur-
ing programmed play, press STOP.
The CD’s total number of tracks and
playing time appear.
Note: To play the programmed se-
quence again, press PROGRAM then
PLAY/PAUSE.
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.
Editing a Programmed
Sequence
To edit the programmed sequence, re-
peatedly press PROGRAM until the
stored track you want to change ap-
pears on the display.
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.
Erasing a Programmed
Sequence
To erase a programmed sequence,
you can press OPEN/CLOSE or POW-
ER before, during, or after pro-
grammed play.
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14
Random Play
You can set the CD player to play a
CD’s tracks in random order.
1. Before or during play, press RAN-
DOM so RND appears on the dis-
play.
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.
Note: If you select RANDOM while
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.
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 skip to the next randomly
selected track, press SKIP/
SEARCH .
• During random play, you can use
to advance to the next ran-
domly selected track, use to
return to the beginning of the cur-
rent track, or repeat the current
track (see “Repeat” below).
To cancel random play and resume
normal play without stopping, simply
press RANDOM. RND disappears from
the display and the CD player re-
sumes normal play.
Cue
To start playing a CD from a desired
track, before you begin play or during
pause, repeatedly press SKIP/
SEARCH or
SKIP/SEARCH
until the desired track number appears
on the display. Then press PLAY/
PAUSE to play the track.
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).
To continuously repeat a single track,
press REPEAT before or during play.
appears on the display.
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REP
1
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To continuously repeat all tracks on
the CD, press REPEAT twice before or
during play. appears on the dis-
play.
To continuously repeat an entire pro-
grammed sequence, first program the
tracks you want to play, then press
REPEAT twice before or during play.
appears on the display.
To cancel repeat play during or after
play, repeatedly press REPEAT until
and disappear from the
display. If repeat is cancelled during
play, the CD player resumes normal
play.
Note: Pressing STOP cancels repeat
play.
Time Display
While a track is playing, the display
shows the current track’s number and
the elapsed playing time since the
track began playing.
Press TIME once to display the current
track’s remaining playing time.
Press TIME twice to display the CD’s
total remaining playing time.
Press TIME three times to return to the
original display.
REP
REP
REP 1 REP
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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.
LOADING AND PLAYING
A CASSETTE TAPE
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.
• 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.
1. Press TAPE. The TAPE indicator
lights.
2. Open either cassette compart-
ment by pressing STOP/EJECT.
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.
4. Close the cassette compartment
door until it clicks.
5. Press PLAY.
Note: Press PAUSE to tempo-
rarily stop tape play. To resume
play, press PAUSE again.
6. Adjust VOLUME, BALANCE, and
the 3-BAND FREQUENCY EQUAL-
IZER for the desired sound.
7. Press E-BASS to boost low fre-
quency sounds for an emphasized
bass sound.
8. The cassette stops automatically
when it reaches the end. Press
STOP/EJECT to stop tape play
sooner.
Note:
When the tape ends, turn it over
to listen to the other side.
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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.
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.
1. Load the cassette you want to
play first into TAPE 1 and the one
you want to play second into
TAPE 2.
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.
The tape player automatically stops
when the cassette in TAPE 2 reaches
end.
To stop consecutive play before the
tape player automatically stops, press
STOP/EJECT on both decks.
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).
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.
• To record on a cassette, its erase-
protection tabs must be in place
(see “Preventing Accidental Rec-
ording” on Page 23).
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18
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.
1. Press TAPE.
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.
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.
4. Set DUBBING to NORMAL or HIGH.
•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.
5. Press PAUSE and RECORD on
TAPE 2. Both PAUSE and
RECORD lock down.
6. Press PLAY on TAPE 1. TAPE 1
begins playback, PAUSE releases
on TAPE 2, and dubbing begins.
Notes:
• To skip an unwanted section on
TAPE 1, press PAUSE on TAPE
2 while the unwanted section
plays. To resume dubbing,
press
PAUSE again.
• To monitor the tape you are
copying, adjust VOLUME.
Dubbing automatically stops when the
cassette in TAPE 2 reaches its end.
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.
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19
Recording from the Radio or
CD Player
Press TUNER and tune to the desired
station, or press CD and load the de-
sired CD.
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.
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.
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.
1. Press TAPE. The TAPE indicator
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.
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.
4. Insert the microphone into the MIC
jack.
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.
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.
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20
USING AN EXTERNAL AUDIO SOURCE
If you connected an external audio
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.
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.
2. Press AUX. The AUX indicator
lights.
3. Start playback on the external
audio source.
4. Adjust VOLUME, BALANCE, and
the 3-BAND FREQUENCY EQUAL-
IZER for the desired sound.
5. Press E-BASS to boost low fre-
quency sounds for an emphasized
bass sound.
RECORDING FROM AN
EXTERNAL AUDIO
SOURCE
Note: The VOLUME, E-BASS, BAL-
ANCE, and 3-BAND FREQUENCY
EQUALIZER settings do not affect your
recordings. The system automatically
adjusts those levels.
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
lights.
3. Insert a cassette you want to
record on into TAPE 2.
4. Press RECORD to begin record-
ing.
5. Start playback on the external
audio source.
Note: To pause the tape during
recording, press PAUSE. To
resume recording, press PAUSE
again.
6. To stop the tape at any time dur-
ing recording, press STOP/EJECT.
7. Stop playback on the external
audio source.
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