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Mini Stereo Component System
Dual Hi-Speed Dubbing Cassette Deck
Cat. No. 13-1279
OWNER’S MANUAL
Please read before using this equipment.
SYSTEM 734
with 3-Disc Automatic CD Changer
AM/FM Stereo
3 Preset Equalizer Controls
15-Watts Per Channel Amplifier
2-Way Speaker System
Electronic Volume Control
Clock
On/Off Timer
and Remote Control
R
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FEATURES
Your Optimus System 734 Mini Stereo
Component System offe rs, in one attractive package, all of the versatile
features that you need for excellent
stereo sound and entertainment. The
System 734 includes a 3-disc automatic CD changer, AM/FM stereo tuner,
dual hi-speed dubbing cas sette deck,
speakers, and a remote control, as
well as three preset equalizer controls.
The built-in 15 watts-pe r-channel amplifier produces crisp, clear sound
even at high volume.
CD CHANGER FEATURES
3-Disc Automatic CD Chan
er
—
lets you load up to three CDs a t once
and automatically play them one after
another.
Automatic Search Music S
(ASMS)
— let s y ou quic kl y locate a nd
stem
play any track on a CD.
Audible Search
— helps you locate a
particular section of a CD by rapidly
playing it in either direction.
Direct Selection Pla
— lets you select and play any track from the loaded
CDs.
Random Pla
— lets you set the System 734 to automatically play the
tracks on all CDs in random order.
Repeat Pla
— lets you automatica lly
repeat a single track, all tracks on a
CD, or a programmed sequence of
tracks.
3- and 5-Inch CD Compatible
— lets
you play either 3- or 5-inch CDs.
CASSETTE DECK FEATURES
Continuous Pla
— lets you automatically play one side each of two cassette tapes, one after the other.
Multiple Source Recordin
— lets
you record onto a cass ette tape from
the CD changer, radio, another cassette tape, or from an external audio
source.
Automatic Level Control (ALC)
—
automatically adjusts the recording
level.
Hi
h Speed Dubbin
— lets you set
the System 734 to record cassette
tapes at one and a half times the normal speed.
Pro
rammable Pla
— lets you program and play up to 32 tracks in any
order.
Auto-Stop
cassette tape when it fini shes playing
or recording to protect the tape and
— automatically stops the
tape-handling parts.
© 1995 Tandy Corporation.
Radio Shack and Optimus are registered trademarks used by Tandy Corporation.
All Rights Reserv ed .
2
CAUTION
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Soft Cassette Tape Eject — slowly
opens the cassette com partment do or
when you press the eject button, so the
tape does not pop out.
OTHER SPECIAL FEATURES
Digital Sy nthesi zed Tuning — elimi-
nates tuning drift by locking the tuner
on the selected frequency.
Memory Tuning — lets you store and
easily recall up to 32 of your favorite
radio stations (8 AM and 24 FM).
Remote Control — lets you control
most of the System 734’s functions
from a distance.
Easy-to-Read Display — clearly displays your syst em’s indica tors for easy
viewing in almost any lighting condition.
Extended Bass (E-BASS) — lets you
emphasize the low-bass sounds during low-volume liste ning.
Auxiliary Input Jacks — let you connect an additional audi o source, such
as a TV, VCR, turntable, or an external
CD changer or cassette deck, to your
system.
Note: The remote control requires two
AA batteries (not supplied) for power.
Warning: This CD changer employs a
laser light beam. Only a qualified service 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 t his product to rain
or moisture.
RISK OF ELECTRIC SHOCK.
DO NOT OPEN.
CAUTION: TO REDUCE THE RISK OF
ELECTRIC SHOCK, DO NOT REMOVE
COVER OR BACK. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
!
Three Preset Equalizer Settings —
provide you with common sound s ettings for enhancing rock , pop, or classical music at the press of a button.
Digital Clock — gives you a digital
time display even when the System
734 is turned off.
On/Off Timer — lets you set the Sys tem 734 to automat ically turn itself on
and off at preset times.
This symbol is intended to alert you
to the p r es en c e o f un in su lated d an gerous voltage within the product’s
enclosure that might be of sufficient
magnitude to constitute a risk of
electric shock. Do not open the
product’s case.
This symbol is intended to inform
you that important operating and
!
maintenance instructions are included in the literature accompanying this product.
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Read this manual carefully. It will help
you get the most enjoyment from your
System 734.
For your records, we urge you to
record the serial number of your System 734 in the space below. The serial
number is located on the back of the
system.
Serial Number __________________
Note: CDs that can be played on this
changer have this mark on them:
Note: Most material on compact discs
and prerecorded tapes is copyrighted.
Unauthorized duplication of copyrighted material is a violation of the copyright 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 noncommercial (personal) use.
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TABLE OF CONTENTS
Preparation ........................................................................................................... 7
Connecting the Speakers . ............................................................................... 7
Connecting the Antennas ................................................................................ 7
Connecting an Additional Audio Source ......................................................... 7
Connecting Power ........................................................................................... 8
Setting the Current Time ................................................................................. 8
Installing Batteries in the Remote Control ....................................................... 9
Connecting Headphones .............................................................................. 10
Listening Safely ...................................................................................... 10
Basic Operation ................................................................................................. 11
Using the Remote Control ............................................................................. 11
Turning On/Off the System ........................................................................... 11
Setting the Sound ......................................................................................... 11
Adjusting the Volume .............................................................................. 11
Using Extended Bass (E-Bass) ...................................................... ....... . 12
Changing the Preset Equalizer Settings ................................................. 12
Setting The On/Off Timer .............................................................................. 13
Radio Operation ................................................................................................. 15
Listening to the Radio ................................................................................... 15
Using Memory Tuning ................................................................................... 16
Storing a Station in Memory ................................................................... 16
Recalling a Stored Station ...................................................................... 17
CD Chan
Loading and Playing a CD ............................................................................ 18
Special CD Changer Features ...................................................................... 20
Programmed Play ......................................................................................... 23
CD and CD Changer Care Tips ......................................... ..... .. ..... ..... .. ..... .. . 26
er Operation ...................................................................................... 18
Loading/Unloading CDs during Play ....................................................... 20
Automatic Search Music System (ASMS) .............................................. 20
Audible Search ....................................................................................... 21
Random Play .......................................................................................... 21
INTRO Scanning .................................................................................... 22
Repeat Play ............................................................................................ 22
Cue ......................................................................................................... 23
Storing/Playing a Programmed Sequence ............................................. 23
Reviewing a Programmed Sequence ..................................................... 25
Erasing a Programmed Sequence ......................................................... 25
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Cassette Deck Operation .................................................................................. 27
Loading a Tape .............................................................................................. 27
Playing a Tape ............................................................................................... 27
Consecutive Play .................................................................................... 28
Recording a Cassette Tape ........................................................................... 29
Recording from a CD .............................................................................. 29
Copying Cassette Tapes .. ....................................................................... 30
Recording from the R adio ....................................................................... 31
Tape Tips ....................................................................................................... 32
Erasing a Cassette Tape ......................................................................... 32
Preventing Accidental Erasure ................................................................ 32
Restoring Tape Tensi on and Sound Quali ty ............................................ 33
Using an Additional Au dio Source ................................................................... 34
Listening to an Additional Audio Source ........................................................ 34
Recording from an Additional Audio Source .................................................. 34
Tro ubleshooting ................................................................................................. 36
Care and Maintenance ....................................................................................... 37
The FCC Wants You to Know ........................................................................ 38
Cleaning the Tape-Handling Parts ................................................. ....... ....... .. 38
Specifications ..................................................................................................... 39
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PREPARATION
Important:
• Complete all connections to the
System 734 before you c onnect it
to power.
• Be sure to follow all of the installation instructions described in the
enclosed “Safety Instructions.”
CONNECTING THE
SPEAKERS
1. Press open the pair of terminal
tabs marked
the back of the main System 734,
then insert the right speaker’s
striped wire into the red (
nal and its solid wire into the black
–
(
) terminal. Then release the
tabs.
SPEAKERS/ + R –
+
) ter mi-
on
CONNECTING THE
ANTENNAS
To connect the supplied AM and FM
antennas, press open the pair of terminal tabs marked
insert the stripped end of the AM or FM
antenna’s wires into the terminals. Release the tabs to close them.
AM
or FM
(75W)
, then
CONNECTING AN
ADDITIONAL AUDIO
SOURCE
Caution:
system and speakers, never let
the speaker wire’s bare ends
touch each other.
2. Repeat Step 1 to connect the left
speaker’s wires to the terminal
tabs marked
To avoid damaging your
SPEAKERS/ – L +
.
To connect an additional audi o sourc e
to your System 734, such as a TV,
VCR, CD changer or cassette deck,
plug the audio source’s left and right
line le vel audio wi res into
R
and
(right).
AUX L
(left )
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Notes:
• See “Using an Additional Audio
Source” to operate an external
audio source with the System 734.
• If you connect a turntable to the
System 734, the turntable must
have a built-in equalizer amplifier.
CONNECTING POWER
To connect power after making all other connections, plug your system’s AC
cord into a standard AC outlet. The last
known time flashes on the display.
SETTING THE CURRENT
TIME
1. Press and hold
seconds. The hour digit(s) flash.
2. To increase o r decrease the hour
setting, within 5 seconds press
TUNING UP
TUNING
trol.
s
CLOCK
DOWN
or
or t on the remote con-
for about 2
PRESET/
, or
Caution: Your system’s AC power
cord has a polarized plug (one blade is
wider than the other). If you hav e difficulty inserting the plug into the outlet,
do not force i t. Turn t he plug over and
try again.
8
Notes:
• To rapidly i ncrease or dec rease
the hour setting, press and hol d
TUNING UP
SET/TUNING
remote control.
• When changing the hour, be
sure to set it to the correct AM
or PM hour, so
appears on the display.
DOWN
or
s or t on the
AM
, or
or
PRE-
PM
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• If the hour digit stops flashing
before you finish setting the
hour, start again from Step 1.
3. Press
flash.
4. To increa se or decrease the minutes setting, press
or UP, or
the remote co ntrol.
Notes:
• To rapidly in crease or de crease
• If the minute digits stop flashing
CLOCK
the minute setting, press and
hold
PRESET/TUNING
remote control.
before you finish setting the
minutes, repeat Steps 1, 3, and
4.
. The minute digits
TUNING DOWN
PRESET/TUNING
TUNING UP
or
s or t on the
s or t on
DOWN
, or
• The time appears cons tantly while
the System 734 is turned off. To
display the time at any time while
the system is turned on, simply
press
briefly appears.
CLOCK
. The current time
INSTALLING BATTERIES
IN THE REMOTE
CONTROL
The remote control requires two AA
batteries (not supplied) for power. For
the best performance and longes t life,
we recommend alkaline batteries,
such as Radio Shack Cat. No. 23-552.
Caution:
the required size and type.
1. To open the battery compartment
Always use fresh batteries of
cover, press the tab on the cover
in the direction of the arrow, then
lift the cover away from the compartment.
5. Press
clock.
Notes:
• When power is disconnected or
interrupted then restored, the last
known time flashes on the display.
If this happens, reset the time.
CLOCK
again to start the
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2. Insert the batteries into the compartment as indicated by the
polarity symbols (+ and –) ma rked
inside.
3. Replace the cover.
Notes:
• If you will not be using the remote
control for a month or more,
remove the batteries.
• You can use the remote control up
to a distance of about 20 feet (6
meters), from an angle of up to
60° in front of the System 734. If it
does not operate properly within
this range, replace the batteries.
Warning: Always dispose of old batteries promptly and properly.
CONNECTING
HEADPHONES
To listen without disturbing others, you
can connect a p air o f
reo headphones (not supplied) to the
System 734. Y our local Radio Shack
store sells a wide selection of stereo
headphones.
1
/4-inch plug ste-
To connect headphones, plug the
headphone’s
PHONES
1
/4-inch plug into the
jack on the front of the Sys-
tem 734.
Note: Connecting headphones automatically disconnects the System
734’s speakers.
Listening Safely
To protect your hearing, follow these
guidelines when you use headphones.
• Set the volume to the l owest setting before you begin listening.
After you begin listening, adjust
the volume to a comfortable level.
• Do not listen at extremely high
volume levels. Extended high-volume listening can lead to permanent 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.
10
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BASIC OPERATION
Important:
age, set the volume to its minimum level before turning on the system (see
“Setting the Sound”).
To prevent hearing dam-
USING THE REMOTE
CONTROL
The remote control communicates with
your system through a remote sensor
located on the left of the system’s display. To use the remote control, be
sure that the front end of it is pointing
with a clear path toward the system’s
display, then press the desired button(s).
TURNING ON/OFF THE
SYSTEM
Press
734. All of the system’s display characters appear from left to right, then t he
last selected settings appear.
To turn off the system, press
again. All of the system’s display characters appear at once, t hen disappear
from right to left. Then the current time
appears and remains on the display.
POWER
to turn on the System
POWER
SETTING THE SOUND
Note:
unit and the remote control operate the
same system function. You can use either control to operate the System 734.
Caution:
or the sensor on the main system to direct sunlight or strong lights, such as a
spotlight, will reduce its operating d istance and can make it inoperative.
Several controls on the main
Exposing the remote control
Adjusting the Volume
To increase the system’s volume, turn
VOLUME
UME
crease the volume, turn
towards
the remote control.
towards UP, or press
s on the remote control. To de-
DOWN
, or press
VOLUME
VOL-
VOLUME
t on
11
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Each time you increase or decrease
the volume, the curren t volume setting ,
measured in decibels (dB), appears on
the display. You can adjust the volume
anywhere from –68 dB (low) to 0 dB
(high).
To return to normal bass sound, press
it again so the button clicks and pops
out.
Changing the Preset
Equalizer Settin gs
Important: To prevent hearing dam-
age, set the volume to its minimum level before playing the radio, a CD or
cassette tape, or an external audio
source.
Note: To turn off the sound tempo rarily, press
pears next to
resume listening, press
MUTE
. A red indicator ap-
MUTE
on the display. To
MUTE
again so
the indicator tur n s o ff.
Using Extended Bass
(E-Bass)
To enhance the System 734’s bass
sound, press
tem. The button clicks and locks in.
E-BASS
on the main sys-
You can adjust the balance of the System 734’s sound frequencies using
one of its three preset equalizer (sound
balance) settings. These settings are
designed to give you the best sound
for rock, pop, or class ical musical selections.
Each time you turn it on, the System
734 automatically uses the l ast sele cted equalizer setting. To change the
setting, press
ROCK, POP
or repeatedly press
EQ PRESET
, or
CLASSIC
on the
remote control. The selected button
lights up, and appears next to
ROCK, POP
, or
t
CLASSIC
on the dis-
play.
To cancel the selected setting, press
the selected button or press
SET
on the remote control until the se-
EQ PRE-
lected button turns off on the main
system.
,
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SETTING THE ON/OFF
TIMER
You can set the Sys tem 734 to automatically turn itself on, play the l ast selected radio station, CD, or cassette
tape, then turn itself off again.
Notes
:
• To rapidly increase the hour or
minutes settings when setting the
on/off times, simply press and
TUNING UP
hold
SET/TUNING
s or t on the re mote
control.
• When changing the hour setting,
be sure to set it to the correct AM
or PM hour.
• If the hour or minute digits stop
flashing before you finish setting
them, start again from Step 1.
1. Press and hold
remote control until
last set on-time appear on the display . The hour digits flash.
DOWN
or
TIMER SET
ON
and the
PRE-
, or
on the
2. To increase or decrease the ontime hour setting, within 5 seconds press
PRESET/TUNING
or
TUNING UP
s or t on the
or
DOWN
remote control.
3. Press
TIMER SET
again. The
minute digits flash.
4. To increase or decrease the ontime minutes setting, within 5 seconds press
PRESET/TUNING
or
TUNING UP
s or t on the
or
DOWN
remote control.
5. Press
TIMER SET
again.
OFF
and
the last set off-time app ear on t he
display. The hour digit(s) flash.
,
,
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6. To increase or decrease the offtime hour setting, within 5 seconds press
PRESET/TUNING
or
TUNING UP
s or t on the
or
DOWN
remote control.
7. Press
TIMER SET
again. The
minute digits flash.
8. To increase or decrease the offtime minutes setting, within 5 seconds press
PRESET/TUNING
or
TUNING UP
s or t on the
or
DOWN
remote control.
9. Press
TIMER SET
again. The last
set volume level appears on the
display. Adjust
VOLUME
to set the
volume to the desired level.
10. Press
TIMER SET
again to end
programming and turn on the
timer. A clock symbol appears on
the display to indicate that the
timer is on.
:
To turn th e time r on o r o ff at
Note
any time after setting it, press
TIMER ON/OFF
on the remote control so the clock symbol appears
or disappears.
11. Select the desired radio st ation or
CD you want the System 734 to
,
play when it turns itself on (see
“Radio Operation” or “CD
Changer Operation”).
: If you selected a cassette
Note
tape, be sure to press
PAUSE
on the appropriate deck
(TAPE 1 or 2) (see “Cassette
,
Deck Operation”).
12. Select the desired
equalizer settings.
13. Press
POWER
to tur n off the System 734. The current time an d the
clock symbol appear dimly lit on
the display.
Notes:
• If you selected a cassette tape,
be sure to release
the selected deck after you turn
off the system.
• Until you turn off the timer, the
System 734 automatically turns
itself on eve ry day at t he pres et
time and plays t he l ast select ed
radio station, cassette tape, or
CD. If no CD is loaded in the
last selected CD position, the
system automatically selects
the next highest numbered CD.
PLAY
E-BASS
PAUSE
and
and
on
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RADIO OPERATION
LISTENING TO THE
RADIO
1. Repeatedly press
appears next to
t
display.
2. Repeatedly press
AM or FM. As you press it,
FM
and the last selected station
appear on the display.
3. Repeatedly press
DOWN
on the remote control, to tune to
the desired station. As you press
it, the frequency number changes
on the display.
PRESET/TUNING
, or
FUNCTION
TUNER
BAND
TUNING UP
until
on the
to select
AM
or
or
s or
To rapidly scan for a station, press
and hold
PRESET/TUNING
remote control, until
appears on the display (about 2
seconds). When you release it,
the tuner automatically stops at
the next strong station.
Notes:
•If
appears on the display, the system tunes in only preset (memory) stations (see “Using
Memory Tuning”).
• To listen to FM broadcasts in
stereo, press
broadcast is being received in
stereo,
t
the display.
TUNING UP
s or t on the
P-
followed by a number
FM MONO
STEREO
DOWN
or
, or
AUTO
. If the
appears on
15
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• To improve reception for weak
FM stereo stations, press
so
MONO
(monaural)
MONO.
FM
appears on the display. The
sound is no longer in stereo, but
reception should improve. To
return to stereo sound, press
FM MONO.
• For the best FM reception, fully
extend the FM antenna.
• For the best AM reception, turn
the AM antenna until reception
improves.
4. Adjust
VOLUME
, or
VOLUME
s/t on
the remote control, and select the
desired
E-BASS
and equalizer set-
tings.
USING MEMORY TUNING
You can store and easily recall up to
32 of your favorite AM and FM radio
stations (8 AM and 24 FM ) in t he Sy stem 734’s memory.
Storing a Station in Memory
Note:
MEMORY
The first time you press
after connecting power,
the System 734 automatically
selects memory position 01. Each
time you press it after that, it
selects the next available position.
To select the next higher or lower
memory position, after you press
MEMORY
DOWN
(or
, press
PRESET/TUNING
TUNING UP
on the remote control).
3. Within 5 seconds, press
UP
s
DOWN
or
or t on the remote control, to
PRESET/TUNING
, or
TUNING
tune to the desired station.
Note:
If
disappears
MEMORY
before you tune to the desired station, repeat Step 2 then try again.
4. Press
MEMORY
again to store the
station in the selected memory
position.
or
s or
t
1. Press
2. Press
01
the display.
16
BAND
to select AM or FM.
MEMORY
MEMORY
.
and
P-
(memory position 01) flash on
5. Repeat Steps 2-4 to store up to 24
FM stations or 8 AM stations in
the selected band.
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Notes:
• You cannot clear a station from
memory, but you can store a new
one in its place.
• When power is disconnected or
interrupted for 24 hours or more,
the System 734 loses all of its
memory s ett in gs .
Recalling a Stored Station
1. Press
BAND
to select the desired
band.
P-
2. If
followed by a number does
not appear on the display, press
PRESET
. P- appears on the display along with the last selected
preset station.
3. Repeatedly press
DOWN
PRESET/TUNING
, or
TUNING UP
s or
or
on the remote control, until the
desired station appears on the
display.
Note: To tune in stations that are not
stored in memory, press
P-
disappears from the display, then
PRESET
so
tune in the desired station.
t
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CD CHANGER OPERATION
The System 734 lets you load up to
three CDs at once and gives you many
options to control the order in which
the CDs play.
LOADING AND PLAYING
A CD
1. Repeatedly press
appears next to
t
dISC
play.
2. Press
pears on the display, then the CD
changer drawer opens.
OPEN/CLOSE
FUNCTION
appears.
CD
on the dis-
OPEN
.
until
ap-
3. Carefully place a CD in slot num ber 1 with the label facing up.
4. To load a CD in each of the other
slots (2 and 3), repeatedly press
DISC SKIP
until the desired slot appears.
5. Press
changer drawer closes,
and
total number of tracks and playing
time appear.
to rotate the CD tray
OPEN/CLOSE
1 0:00
appear, then the
. The CD
dISC 1
Caution:
CD drawer open or closed. You
might damage its loading me chanism.
18
Do not try to force the
6. To play the CD loaded in slot 1
(Disc 1), press
PLAY/PAUSE
.
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To play a di fferent CD, repeatedly
DISC SKIP
press
until the desired
disc number appears on the display.
The selected
dISC
number
flashes on the CD changer,
(the track number) and
appear, then the CD begins to
play and its elapsed play time
appears on the display.
Notes:
• To skip over, search, or repeat
tracks, see “Special CD
Changer Features.”
• To briefly stop play, press
P AUSE
. appears on the dis-
PLAY/
play.
• To display the current track’s
remaining play time during play,
press
DISPLAY
on the remote
control once. Press it again to
display the entire CD’s remaining play time. Press it a third
time to return to the elapsed
play time.
1
t
• The System 734 displays the
selected CD’s total playing time
and number of tracks at all
times before and af ter play. To
briefly display this information
during play, press
remote control.
TIME
on the
To resume play, press
PAUSE
again. disappears.
PLAY/
7. Adjust
VOLUME
, or
VOLUME
s/t on
the remote control, and select the
desired
E-BASS
and equalizer set-
tings.
8. The System 734 automatically
stops play at the end of the highest numbered CD loaded in the
system.
19
13-127 9.fm Page 20 Wednesday, July 14, 1999 4:50 PM
To stop the CD changer at any
time during play, press
selected CD’s total number of
tracks and playing time appear.
STOP
. The
Loading/Unloading CDs
During Play
The System 734’s rotating 3-disc CD
changer lets you load and unload up to
two CDs while a third CD is playing.
1. During play, press
The CD changer drawer opens,
and the currently selected CD
continues playing.
OPEN/CLOSE
SPECIAL CD CHANGER
FEATURES
Automatic Search Music
System (ASMS)
The automatic search music system
lets you skip forward or backward
through the tracks on all loaded CDs.
• To skip to the beginning of the
next track during play, press and
release
.
• To return to the beginning of the
current track during play, press
and release
• To skip forward or backward
through additional tracks, repeatedly press and release
SEARCH
desired track number appears on
the display.
SKIP/SEARCH
SKIP/SEARCH
>>
or << until the
>>
.
<<.
SKIP/
2. Unload and/or load CDs in the
exposed disc slots.
3. Press
20
OPEN/CLOSE
the CD changer drawer.
again to close
• To skip forward or backward 10
+
tracks at a time, press
SKIP/SEARCH
desired track number appears on
the display.
>>
or << until the
10
then
13-127 9.fm Page 21 Wednesday, July 14, 1999 4:50 PM
Audible Search
To search forward or back ward during
play, press and hold down
SEARCH
>> or <<. The CD rapidly
SKIP/
advances, and you hear the tracks at a
high speed and low volume. Release
SKIP/SEARCH
>>
or << to resume
normal play.
Random Play
The System 734 lets you se t the CD
changer to play the tracks on all CDs in
random order.
1. With at least one CD in the CD
changer and no CD playing, press
RANDOM
RANDOM
domly selected disc and track
number appear on the display.
Then the track begins to play, and
its elapsed play time appears.
on the remote control.
, , and the first ran-
t
2. To briefly stop random pl ay, press
PLAY/PAUSE
. appears on the
display. To resume play, press
PLAY/PAUSE
again. disap-
pears.
3. The System 734 continuously
plays tracks randomly. To stop the
CD changer at any time during
random play, press
DOM,
, and the CD’s elapsed
t
STOP
RAN-
.
play time disappear, then the
selected CDs total number of
tracks and playing time appear.
To cancel random play and
Note:
resume normal play without stopping play, simply press
OPEN/CLOSE
or
RANDOM
.
RANDOM
disappears from the display, and the
CD changer resumes normal play.
To skip to another rand omly
Note:
selected track, press and release
SEARCH
>>
or <<.
21
13-127 9.fm Page 22 Wednesday, July 14, 1999 4:50 PM
INTRO Scanning
The INTRO (introduction) scanning
feature lets you review the first 10 seconds of each track on all loaded CDs.
To use the INTRO scanning feature,
simply press
pears on the display, and the CD
changer plays the first 10 seconds of
each track on all loaded CDs, beginning with the first track on the lowest
numbered CD.
You can search forward or back-
Note:
ward during INTRO scanning.
To cancel INTRO scanning and stop
play, press
INTRO
To cancel INTRO scanning without
stopping play, press
again.
CD changer resumes normal play from
the beginning of the current track.
INTRO SCAN
STOP
. The CD stops and
disappears from the display.
INTRO
disappears, and the
INTRO
.
INTRO SCAN
ap-
Repeat Play
The System 734 l ets you c ontinu ous ly
repeat a single track, all tracks on a
loaded CD, or a programmed sequence of tracks (see “Programmed
Play”).
To continuously repeat a single track,
REPEAT
press
play so
play.
To continuously repeat all tracks on
the selected CD, press
before or during play so
pears on the display.
To continuously repeat a programmed
sequence, first program the tracks you
want to play, then press
before or during play so
pears on the display along with
GRAM
To cancel repeat play before, during,
or after play, press
PEAT
the display. If repeat is cancelled during play, the CD changer resumes normal play.
REPEAT1
.
or
once before or during
appears on the dis-
REPEAT
REPEAT
REPEAT
REPEAT
REPEAT
REPEAT1
disappears from
so
twice
ap-
twice
ap-
PRO-
RE-
22
13-127 9.fm Page 23 Wednesday, July 14, 1999 4:50 PM
Cue
To select a track before you begin play
or after pressing
the current CD, press
>>
or << until the desired track num-
ber appears on the display. Then press
PLA Y/P AUSE
PLA Y/P AUSE
SKIP/SEARCH
to play the track.
to pause
PROGRAMMED PLAY
You can program the CD changer to
play up to 32 tracks in any order you
choose, and you can program the
same CD or track to play more than
once.
Storing/Playing a
Programmed Seq uence
1. With at least one CD in the CD
changer and no CD playing, press
PROGRAM
(memory position number 01)
appear on the display.
PROGRAM
.
and
P-01
2. Press
3. Press
DISC SKIP
desired CD number appe ar along
PROGRAM
with
SKIP/SEARCH
select the desired track.
:
Notes
• To skip f orward or back ward 10
tracks at a time, press
SKIP/SEARCH
the desired track number
appears on the display.
• If you store a track number t hat
does not exist on the selected
CD, the CD changer simply
skips to the next stored track
during programmed play .
dISC
so
.
>> or << to
>>
or << until
and the
10+
then
23
13-127 9.fm Page 24 Wednesday, July 14, 1999 4:50 PM
4. To store t he selected track, press
PROGRAM
again. The memory
position number automatically
increases by 1 to indicate it is
ready to store the next track. For
example, after you press
GRAM
to store the track in
P-02
automatically appears.
PRO-
P-01
5. Repeat Steps 2-4 to store up to 32
tracks.
If you try to store more than
Note:
32 tracks, the CD changer automatically begins reviewing the
tracks already stored, beginning
with the first track (see “Reviewing
a Programmed Sequence”).
C-
(check) appears on the display,
followed by memory position num-
01
ber (
, for example). This information remains on the display
until you begin programmed play.
6. Press
PLAY/PAUSE
to play the
programmed sequence. The
selected disc number flashes on
the CD changer, the first programmed track number and
appear, then the programmed
track begins to play and its
elapsed play time appears on the
display.
Notes:
• To briefly stop programmed
play, press
PLAY/PAUSE
.
appears on the display. To
resume programmed play,
,
press
disappears.
• Pressing
PLAY/PAUSE
DISC SKIP
again.
has no
effect during programmed play.
7. Programmed play automatically
stops at the end of the last programmed track. To stop the CD
changer at any time during programmed play, press
and the CD’s elapsed play
t
STOP
.
time disappear, then the total
number of tracks and playing time
appear.
t
Notes:
• Repeat Step 6 to play the programmed sequence again.
• To replace a programmed track,
PROGRAM
press
until the memory
position number of the track you
want to replace appears on the
display. Then repeat Steps 2-4 to
select and store the new track i n
its place.
24
13-127 9.fm Page 25 Wednesday, July 14, 1999 4:50 PM
• To resume regular or random play
after storing a programmed
sequence, you must first erase the
programmed sequence (see “Erasing a Programmed Sequence”).
Reviewing a Programmed
Sequence
To review a programmed sequence,
while play is stopped, repeatedly press
PROGRAM
and track number, a nd C- (check) followed by the memory position numb er
of each stored track appears.
Note
the display until you press
PAUSE
you erase the sequence (see “Erasing
a Programmed Sequence”).
. As you press i t, the
: This review information stays on
to play the sequence, or until
dISC
PLAY/
Erasing a Programmed
Sequence
You can do any of the following to
erase a programmed sequence:
STOP
•Press
grammed play.
•Press
ing, or after programmed play.
•Press
after programmed play.
PROGRA M
play.
before or after pro-
OPEN/CLOSE
POWER
disappears from the dis-
before, dur-
before, during, or
25
13-127 9.fm Page 26 Wednesday, July 14, 1999 4:50 PM
CD AND CD CHANGER
CARE TIPS
Although a CD is very durable, you
should handle it with care. We recom mend the following precautions.
• Keep the CD in its protective case
or sleeve when you a re not playing it.
• Keep the CD clean. Your local
Radio Shack store sells a suitable
CD cleaner kit.
• Keep the CD dry. A drop of moisture can act as a lens and affect
the laser beam’s focus. If it gets
wet, wipe the CD with a soft, dry
cloth before playing it.
• Do not write on either side of a
CD, especially the non-label side.
• Handle the CD by its edges to
avoid fingerprints and surface
scratches, which can prevent the
laser from accurately reading the
CD. If the CD gets sc ratched, use
Scratch ‘n’ Fix (Radio Shack Cat.
No. 42-127) to keep the CD from
skipping during play.
Cautions:
• To avoid damaging the CD
changer, do not place anything
but a CD in the CD drawer.
• Remove a ny load ed CDs from t he
CD changer before moving the
System 734 to prevent damaging
the CDs.
• Moving the CD changer suddenly
from a cold place to a warmer one
can cause moisture to form on the
pickup lens and disrupt operation.
If this happens, wait about one
hour before playing a CD.
• Do not store CDs in high-temperature, high-humidity locations.
If the System 734 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.
26
13-127 9.fm Page 27 Wednesday, July 14, 1999 4:50 PM
CASSETTE DECK OPERATION
The System 734 has a dual casset te
deck system which lets you automatically play one side of two cassette
tapes consecutively, record from the
CD changer, record one cassette tape
onto another, and more.
Notes:
• The remote control does not operate the System 734’s cassette
deck.
• The System 734’s Automatic
Level Control (ALC) feature automatically adjusts the recording
level. The
ROCK, POP
have no effect on the recording.
• Tape quality greatly affects the
quality of the recording. We recommend regular length (60- or 90minute) cassette tapes. We do not
recommend long-play cassette
tapes, such as C-120s, because
they are thin and can easily tangle
in the cassette mechanism. For
low-noise, wide-range recordings,
use normal-bias tape.
• Before you load a cassette tape
for recording, turn the cassette’s
hub with your finger or a pencil to
take up any slack and move the
tape past its leader. (Avoid touching the tape with your fingers.)
VOLUME, E-BASS
CLASSIC
, or
settings
, and
LOADING A TAPE
1. Press
2. Insert the cassette tape with the
3. Close the door.
STOP/EJECT
tape deck (TAPE 1 or TAPE 2) to
open the cassette compartment
door.
Note:
and records. TAPE 2 only plays
prerecorded cassette tapes.
exposed tape edge facing down,
the side you want to play facing
you, and the full reel to the left.
TAPE 1 both plays back
on the desired
PLAYING A TAPE
1. Repeatedly press
appears next to
t
display.
FUNCTION
TAPE
until
on the
• Before recording, be sure the cassette tape’s erase-protection tabs
are in place. See “Preventing
Accidental Erasure.”
27
13-127 9.fm Page 28 Wednesday, July 14, 1999 4:50 PM
2. Press
PLAY
. The tape begins to
play.
Notes:
• To briefly stop the tape during
playback, press
PAUSE
button locks and the tape stops.
P AUSE
Press
again to continue
playback.
• To rapidly fast-forward or
rewind a cassette tape in either
deck while the tape is stopped,
FAS T- F
press
REWIND
(fast-forward) or
. The button locks and
the tape fast-forwards or
rewinds.
. The
4. The System 734 automatically
stops the tape when it reaches the
end. To stop the tape at any t ime
during playback, press
EJECT
.
STOP/
Consecutive Play
You can set the Sys tem 734 to automatically play one s ide o f the c asse tte
tape in TAPE 2, then play one side of
the cassette in TAPE 1.
1. Load the first cassette tape you
want to play into TAPE 2, and the
other into TAPE 1. Be sure the
side of the tape you want to play is
facing out on ea ch deck, with the
full reel to the left.
The System 734 automatically
stops the tape when it reaches the
end. To stop the tape at any time
during fast-forwarding or rewinding, press
3. Adjust
STOP/EJECT
VOLUME
, or
.
VOLUME
the remote control, and select the
desired
E-BASS
and equalizer set-
tings.
28
s/t on
2. Press
PLAY
on TAPE 2. The tape
in TAPE 2 begins to play.
3. Press
P AUSE
then
1. Both buttons lock.
PLAY
on TA PE
13-127 9.fm Page 29 Wednesday, July 14, 1999 4:50 PM
When the tape in TAPE 2 reaches
the end, the tape in TAPE 1 automatically begins to play.
Note: To briefly stop the tape in
either deck during playback, press
P AUSE
on the desired deck. The
button locks and the tape stops.
Press
PA US E
again to continue
playback.
4. At the end of the tape in TA PE 1,
the system automatically stops
the tape. To stop playback on
either deck at any time, press
STOP/EJECT
on that deck.
PLAY
releases.
Note: If you press
STOP/EJECT
on
TAPE 2 during play, the tape in
TAPE 1 automatically begins to
play.
RECORDING A
CASSETTE TAPE
The System 734 lets you record onto a
cassette tape from the CD changer, radio, or another cassette tape.
Recording from a CD
Follow these steps to record from a CD
onto a cassette tape.
1. Repeatedly press
appears next to
t
FUNCTION
CD
on the display, then load the CDs y ou want
to record into the CD changer.
2. Load a blank cassette tape, or
one you want to record over, into
TAPE 1.
3. To record the tracks from all
loaded CDs in order, press
PAUSE
on the C D changer twice.
appears on the display, and
the CD changer pauses o n disc 1,
track 1.
until
PLAY/
Note: You can also record from an ad-
ditional audio source (see “Recording
from an Additional Audio Source”).
Caution: Never try to force down
RECORD
after you remove an eraseprotection tab from a cassette tape
(see “Preventing Accidental Erasure).
You might damage the recording
mechanism.
Note: To record only selected
tracks or change the sequence i n
which the tracks are recorded, you
must first program a sequence
(see “Programmed Play”), then
PLAY/PAUSE
press
twice.
29
13-127 9.fm Page 30 Wednesday, July 14, 1999 4:50 PM
4. Press
PLAY/PAUSE
RECORD
on TAPE 1 and
on the CD changer
at the same time to begin recording. disappears, appears
t
along with the CD’s elapsed play
PLAY
time,
RECORD
locks down along with
, and the tape begins
recording.
Notes:
• You cannot change t he fun ction
RECORD
while
is pressed down
• To briefly stop the tape while
recording, press
PAUSE
TAPE 1. The button locks and
the tape stops. Press
again to resume recording.
on
PAUSE
6. The System 734 automatically
stops the tape when it reaches the
end. To stop the tape at any t ime
during recording, press
EJECT
on TAPE 1.
STOP/
To stop the CD during or after
recording, press
STOP
on the CD
changer.
The System 734 automati-
Note:
cally stops the CD changer when
it reaches the end of all loaded
CDs or the programmed
sequence. If the tape is still
recording, press
STOP/EJECT
on
TAPE 1 to stop the tape.
• To briefly stop the CD while
recording, press
PLAY/PAUSE
on the CD changer.
appears on the display. To
resume play, press
PAUSE
.
PLAY/
5. To listen to the CD during recording, adjust
on the remote control, and select
t
the desired
VOLUME,
E-BASS
VOLUME
or
and equalizer
settings.
30
s/
Copying Cassette Tapes
The System 734 lets you dub (copy)
one cassette tape to another, one side
at a time, using its dual cassette decks
(TAPE 1 and TAPE 2).
1. Repeatedly press
appears next to
t
display.
2. Load a blank cassette tape, or
one you want to record over, into
TAPE 1.
3. Load the tape you want to record
from into TAPE 2.
FUNCTION
TAPE
on the
until
13-127 9.fm Page 31 Wednesday, July 14, 1999 4:50 PM
4. Press
TAPE 1.
RECORD
PLAY
, then
automatically locks
PAUSE
on
down.
5. To record at one and a half times
the normal speed, press
SPEED
HI-DUBB
.
appears on the
HIGH
display. To set it back to normal
speed, press
HI-DUBB
6. Within 5 seconds, press
HIGH SPEED
disappears.
again.
PLAY
on
TAPE 2. The tape in TAPE 2
begins to play,
PAUSE
automatically releases on TAPE 1, and
TA P E 1 begins to record.
7. To listen to the tape in TAPE 2
during recording, ad just
VOLUME
or
s/t on the remote con-
trol, and select the desired
BASS
and equalizer settings.
Note:
If you use
HIGH SPEED
VOLUME
E-
during recording, you hear the sound
at one and a half times the normal
speed.
8. To briefly stop the tape in either
deck while recording, press
PAUSE
on that deck. The button
locks and the tape stops. Press
PAUSE
again to resume recording.
9. The System 734 automatically
stops the tape in each deck when
that tape reaches the end of the
side.
To stop the ta pes in both de cks at
any time during recording, press
STOP/EJECT
rel eases on TAPE 2,
PLAY
release on TAPE 1, and
on both decks.
RECORD
PLAY
and
recording stops.
,
: If you are unable to press
Note
PLAY
within 5 seconds,
HI-DUBB
disappears. If this happens,
repeat Step 5 then try again.
31
13-127 9.fm Page 32 Wednesday, July 14, 1999 4:50 PM
Recording from the Radio
The System 734 lets you record onto a
cassette tape from any AM or FM radio
station. You can also set it to automatically turn on at a preset time and begin
recording from the radio.
1. Press
2. Load a blank cassette tape, or
3. Press
BAND
to select AM or FM,
then tune to the desired station.
one you want to record over, into
TAPE 1.
TAPE 1.
RECORD
PLAY
and
automatically locks
PAUSE
on
down.
5. To listen to the radio during
recording, adjust
VOLUME
s/t on the remote control,
and select the desired
VOLUME
E-BASS
, or
and equalizer settings.
6. The System 734 automatically
stops the tape when it reaches the
end. To stop the tape at any t ime
during recording, press
EJECT
on TAPE 1.
PLAY
release, and recording
RECORD
STOP/
and
stops.
To set your System 734 to automatically begin recording from the rad io at
a preset time, first set and turn on the
on/off timer (see “Setting the On/Off
Timer”). Then follow Steps 1-3 above.
Next , press
POWER
to turn off the system, then release pause on TAPE 1. At
the preset tim e, yo u r system automatically turns itself on and immediately
begins recording from the radio.
4. Release
PAUSE
on TAPE 1 to
begin recording.
Note:
while recording, press
To briefly stop the tape
PAUSE
TA PE 1. The bu tton locks and the
tape stops. Press
PAUSE
resume recording.
32
on
again to
13-127 9.fm Page 33 Wednesday, July 14, 1999 4:50 PM
TAPE TIPS
Erasing a Cassette Tape
To record over a cassette tape, simply
record over the previous recording. To
erase the entire cassette tape, select a
function with no audio (such as
no CD playing) and let the tape record
to the end.
Note:
The tape you are recording over
must be a normal bias-type tape.
To quickly erase a tape, you might pre-
fer to use a bulk tape eraser (available
at your local Radio Shack store).
Preventing Accidental
Erasure
Cassette tapes have two erase-protection tabs — one for each side.
CD
wit h
If you break off a tab and decide later
that you want to record on that side of
the tape, care fully cover that side’s tab
hole with a piece of adhesive tape.
Caution:
tion tab does not prevent a bulk eraser
from erasing a cassette tape.
Removing the erase-protec-
Resto r ing Tape Tension and
Sound Quality
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 qu ality, fast-forward the tape from the beginning to the
end of one side, then completely rewinding it. Then loosen t he tape reels
by gently tapping each side of the cassette’s outer shell on a flat surface.
To protect a recording from being accidentally recorded over or erased,
break off that side’s plastic tab with a
screwdriver.
Caution
cassette when tapping it. Do not touch
the exposed tape or allow any sharp
objects near the cassette.
: Be careful not to damage the
33
13-127 9.fm Page 34 Wednesday, July 14, 1999 4:50 PM
USING AN ADDITIONAL AUDIO SOURCE
If you connected an additional audio
source, such as a TV, VCR, tu rntable,
or an external CD changer or cassette
deck (see “Connecting an Additional
Audio Source”), you can use your System 734 to listen to or record from that
source.
LISTENING TO AN
ADDITIONAL AUDIO
SOURCE
1. Set
2. Repeatedly press
VOLUME
on the remote control, to its lowest
setting, and be sure that the audio
source’s volume control (if any) is
also set to its lowest level.
appears next to
t
display. The current time app ears
on the display.
, or press
VOL UME
FUNCTION
AUX
on the
until
RECORDING FROM AN
ADDITIONAL AUDIO
SOURCE
Follow these steps to record onto a
cassette tape from an addition al audi o
source.
1. Set
t
2. Repeatedly press
3. Load a blank cassette tape, or
4. Press
VOLUME
on the remote control, to its lowest
setting, and be sure that the audio
source’s volume contro l (if an y) is
also set to its lowest level.
appears next to
t
display. The current time appears.
one you want to record over, into
TAPE 1.
TAPE 1.
down.
, or press
RECORD
PLAY
automatically locks
and
VOLUME
FUNCTION
AUX
PAUSE
until
on the
on
t
3. Operate the audio so urce according to its owner’s manual.
4. Adjust
the remote control, an d the audio
source’s volume control (if any) to
the desired level.
34
VOLUME
, or
VOLUME
s/t on
5. Begin play o n t he additional audio
source as instructed i n i ts owner’s
manual.
6. Release
begin recording.
7. To listen to the audio source’s
sound while recording, adjust
VOLUME
remote control, and the audio
source’s volume control (if any) to
the desired level.
PAUSE
, or
on TAPE 1 to
VOLUME
s/t on the
13-127 9.fm Page 35 Wednesday, July 14, 1999 4:50 PM
8. To briefly stop the tape while
recording, press
PAUSE
on TAPE
1. The button locks and the tape
stops. Press
PAUSE
again to
resume recording.
9. The System 734 automatically
stops the tape when it reaches the
end. To stop the tape at any time
during recording, press
EJECT
on TAPE 1.
PLAY
release, and recording
RECORD
STOP/
stops.
10. Stop play on the additional audio
source as instructed in its owner’s
manual.
and
35
y
g
y
g
y
y
y
y
g
y
g
y
g
y
13-127 9.fm Page 36 Wednesday, July 14, 1999 4:50 PM
TROUBLESHOOTING
If your system is not wo rking as i t should, these s uggestion s might help you eliminate the problem. If the system still does not operate normally, take it to your local
Radio Shack store for assistance.
Symptom Possible Cause Suggestion
Power does not turn on
when
POWER
is pressed
No sound.
Power problem. Check the AC power cord and
VOLUME DOWN/UP
set
too low.
No sound when function is
selected.
Wrong function
selected or speakers
connected incorrectl
External audio source. Start the external audio
CD Chan
er does not
work.
Sound from CD skips. CD is dirt
Poor sound qualit
cassette tape pla
during
back.
CD loaded upside
down.
or dam-
ed.
a
Cassette tape heads,
capstands, or pinch
rollers are dirt
.
Record does not work. Erase-protection tabs
are removed from the
cassette tape.
AC outlet.
VOLUME
Adjust
press
control).
VOLUME
towa rd UP (or
s
on the remote
Select another function or
check speaker connections.
.
source.
Load CD correctly.
Clean CD and reload it or tr
a new CD.
Clean cassette decks (see
“Cleanin
the Tape Handling
Parts”).
Put a piece of tape over the
holes where the erase-protection tabs were.
Output sound is not stereo.
The station
listenin
to is an AM
station or
receivin
a stereo sig-
ou are
ou are not
another FM station you
Tr
can receive in stereo.
nal from the FM station.
FM MON O
STEREO
. is not set to
.
Set FM mode to
STEREO
.
36
13-127 9.fm Page 37 Wednesday, July 14, 1999 4:50 PM
CARE AND MAINTENANCE
Your Optimus System 734 Mini Stereo Comp onent S ys tem is a n ex am ple of superior design an d craft smans hi p. The follow ing sugg estio ns will h elp you c are for the
System 734 so you can enjoy it for years.
Keep the System 734 dry. If it gets wet, wipe it dry immediately. Liquids contain minerals that can corrode the electronic circuits
Handle the System 734 gently and carefully. Dropping it can damage
the circuit boards and can cause the System 734 to work improperly.
Use and store the System 734 only in normal temperature environments. Temperature extrem es can shorten t he life of electronic devices, damage batteries, and distort or melt plastic parts.
Keep the System 734 away from dust and dirt, which can cause premature wear of parts.
Wipe the System 734 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 734.
Modifying or tampering with the System 734’s internal components can cause a malfunction and might invalidate your System 734’s warranty. If your System 734 is not
performing as it should, take it to your local Radio Shack store for assistance.
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13-127 9.fm Page 38 Wednesday, July 14, 1999 4:50 PM
THE FCC WANTS YOU
TO KNOW
This stereo system complies with the
limits for a Class B digital device as
specified in Part 15 of
These limits provide reasonable protection against radio and TV interference in a residential area. However,
your stereo system might cause TV or
radio interference even when it is operating properly. To eliminate interference, you can try one o r more of the
following corrective measures:
• Reorient or relocate the receiving
antenna
• Increase the distance between the
stereo system and the radio or TV
• Use outlets on different electrical
circuits for the stereo system and
the radio or TV
Consult your local Radio Shack store if
the problem still exists.
FCC Rules
deck after every 20 hours of tape player operation.
1. Disconnect power.
2. Open the cassette compartment
.
door on each deck.
PLAY
3. Press
expose the tape-handling parts.
4. Use a cotton swab dipped in
denatured alcohol or tape head
cleaning solution to clean each
deck’s record or play h ead, pinch
roller, capstan, and erase head
(TAPE 1 only).
on each deck to
You must use shielded interface cables with this stereo system.
CLEANING THE TAPEHANDLING PARTS
Dirt, dust or particles of the tape’s coating can accumulate on the tape hea ds
and other parts that the tape touches.
This can greatly reduce the performance of the cas sette pl ayer. Use the
following cleaning procedure for each
38
5. When you finish cleaning, press
STOP/EJECT
deck’s cassette compartment
door. Then reconnect power
Your local Radio Shack store sells a
complete line of cassette de ck cleaning supplies.
and close each
13-127 9.fm Page 39 Wednesday, July 14, 1999 4:50 PM
SPECIFICATIONS
CD CHANGER
Frequency Response .. .......................................................................20 – 20000 Hz
Signal-to-Noise Ratio....................................... ....... ....... .......... .. .85 dB (1 kHz, 0 dB)
Harmonic Distortion...................................................................0.05% (1 kHz, 0 dB)
Separation........................................................................................................70 dB
Wow & Flutter.......................................................................................Undetectable
CD Used Diameter ..........................................5-inch (120 mm) and 3-inch (80 mm)
Signal Format .........................D-A Conversion, 6-Bit Linear/Channel Transmission
Bit Rate...........................................................................................................4.3218
MB/Second Sampling Frequenc y.................................................. 44.1 kHz Pick-Up
System............................................... ............................ ............Non-Contact Optic al
Optical Source.........................................................................Semiconductor Laser
Wavelength. ...................................................................................................780 nm
Rotation Speed ................................................ Ap proximately 200 – 500 rpm (CLV)
Error Correction...............................................................................Cross Interleave
Reed Solomon Code Number of Channels .............................................................2
AMPLIFIER
Audio output power * ...............................15 Watts/Channel (minimum RMS power)
*Output at no more than 1.0% total harmonic distortion into 6 ohms, over the
audio spectrum, 65 to 15,000 Hz.
Frequency Response .. .......................................................................35 – 20000 Hz
Input Sensitivity.............................................................................................400 mV
Signal-to-Noise Ratio (A-WTD) ........................................................................72 dB
Harmonic Distortion...................................................... 0.06% (8 W, 1 kHz, 6 ohms)
TUNER (FM)
Frequency Range..........................................................................87.9 – 107.9 M Hz
Usable Sensitivity (IHF).......................................1.4 mV (75 ohms),14.3 dBf, 50 dB
S/N Sensitivity (Stereo) ....................................................................................3 dBf
IF Rejecti on ......................................................................................................75 dB
Image Rejection................................................................................................40 dB
Capture Ratio .................................................................................................1.0 dB
AM Suppression ...............................................................................................40 dB
Signal-to-Noise Ratio
Mono .............................................................................................................76 dB
Stereo............................................................................................................70 dB
39
13-127 9.fm Page 40 Wednesday, July 14, 1999 4:50 PM
Distortion:
Mono ........................ ............................ ............................ .................. 0.3%, 1 kHz
Stereo........................................ ............................. ............................ .0.5%, 1 kHz
Alternate Channel Selectivity.........................................................50 dB (±400 kHz)
Frequency Response ................................................30 to 15 kHz (+0.5 dB, –3 dB)
Stereo Separation ...............................................................................(1 kHz) 33 dB
Antenna..................................................................................75 ohms (unbalanced)
TUNER (AM)
Frequency Range ...........................................................................530 – 1710 kHz
Sensitivity (20 dB S/N)............................................................................. 350 mV/m
IF Rejecti on (at 1.000 kHz) .............................................................................. 50 dB
Image Rejection (at 1.000 kHz) .......................................................................35 dB
Signal-to-Noise Ratio ...............................................................53 dB (100 dB input)
Selectivity ............................................................................................22 dB (9 kHz)
Total Harmonic Distortion................................................................................. 0.8%
Antenna .... ...........................................................................................Loop An ten na
DUAL CASSETTE DECK
Speed Accuracy............................................................................................. ± 3.5%
Tape Speed (Normal)...................................................................1
Frequency Response.........................................................................50 – 12000 Hz
Distortion........................................................................................................... 1.5%
Crosstalk (at 1 kHz) ......................................................................................... 60 dB
Track Format ... .........................................................................4 Tracks, 2 Channels
Recording System.........................................................................................AC Bias
Erasure System .............................................................................................Magnet
Erase Ratio (at 400 Hz) ................................................................................... 65 dB
Motor DC .........................................................................................................Servo
7
/8 ips (4.75 cm/s)
SPEAKERS
Impedance ...........................................................................................................6 Ω
Woofer ...................................................................... 5
Cone Tweeter .............................................................2
Cone Power Handling....................................................................... 15 wat ts (RMS)
Maximum Power .......................................................................................... 30 watts
Output Sound Pressure Level..................................................................87 dB/W/m
Dimensions (HWD) .......................................................12
40
1
/4 Inches (130 mm) diameter
1
/4 Inches (60 mm) diameter
13
/32 × 79/32 × 719/32 Inches
(315 × 185 × 193 mm)
13-127 9.fm Page 41 Wednesday, July 14, 1999 4:50 PM
Cabinet Type ....................................................................................................2-way
Weight ..........................................................................................6 lbs. 10 0z. (3 kg)
INFRARED REMOTE CONTROL
Controls..... .............. ............................ ........................................... ..............27 Keys
Power Requirements.......................................................3 V DC (Two AA Batteries)
(Cat. No. 23-552)
GENERAL
Power Requirements......................................................................120 V AC, 60 Hz
Power Consump tion (Total)...............................................................................75 W
Dimensions (Main Unit) (HWD) ..........................................12
Weight (Main Unit).......................................................................22 lbs, 1 oz (10 kg)
Accessories ..................................FM Antenna, AM Loop Antenna, Remote Control
3
/8 × 105/8 × 13 Inches
(315 × 270 × 330 mm)
Specifications are typical; individual units might vary. Specifications and design are
subject to change and improvement without notice.
41
13-127 9.fm Page 42 Wednesday, July 14, 1999 4:50 PM
NOTES
42
13-127 9.fm Page 43 Wednesday, July 14, 1999 4:50 PM
43
g
g
13-127 9.fm Page 44 Wednesday, July 14, 1999 4:50 PM
RADIO SHACK LIMITED WARRANTY
This product is warrant ed against defects for 90 days from date of purchase from Radio Shack company-owned stores and authorized Radio
Shack franchisees and dealers. Within this period, we will repair it without char
slip
not cover transportation costs. Nor does it cover a product subjected to
misuse or accident al dama
EXCEPT AS PROVIDED HEREIN, RADIO SHACK 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 limitation(s) or exclusion(s) may not apply to the purchaser.
This warranty gives you specific legal rights and you may also have ot her r ights which vary
from state to state.
e for parts and labor. Simply
as proof of purchase date to any Radio Shack store. Warranty does
e.
We Service What We Sell
bring your Radi o Shack sales
9/94
RADIO SHACK
A Division of Tandy Corporation
Fort Worth, Texa s 76102
7A5 Printed in China
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