Optimus Home Theater System SYSTEM 747 User Manual

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Cat. No. 13-1295A  
OWNER’S MANUAL  
Please read before using this equipment.  
System 747  
Mini Stereo Component System  
 
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Compact discs that you  
can play on your sys-  
tem’s CD player have  
this mark on them:  
Warning: This system uses a laser  
light beam. Only a qualified service  
person should remove the cover or at-  
tempt to service this device, due to  
possible eye injury.  
We recommend you record your sys-  
tem’s serial number here. The number  
is on the back panel.  
Warning: The use of controls, adjust-  
ments, or procedures other than those  
specified herein may result in hazard-  
ous radiation exposure.  
Serial Number: ________________  
FCC INFORMATION  
Warning: To prevent fire or shock  
hazard, do not expose this prod-  
uct to rain or moisture.  
This system complies with the limits  
for a Class B digital device as speci-  
fied in Part 15 of FCC Rules. These  
limits provide reasonable protection  
against TV or radio interference in a  
residential area. However, your sys-  
tem might cause TV or radio interfer-  
ence even when it is operating  
properly.  
CAUTION  
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.  
To eliminate interference, you can try  
one or more of the following corrective  
measures.  
This symbol is intended to alert you  
to the presence of uninsulated dan-  
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.  
• Reorient or relocate the TV or ra-  
dio’s receiving antenna.  
• Increase the distance between the  
system and the TV or radio.  
This symbol is intended to inform  
you that important operating and  
maintenance instructions are in-  
cluded in the literature accompany-  
ing this product.  
• Use outlets on different electrical  
circuits for the system and the TV  
or radio.  
!
Consult your local RadioShack store if  
the problem still exists.  
The graphical symbols with supple-  
mental markings are located on the  
back of the system.  
3
 
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CONTENTS  
Preparation ........................................................................................................... 5  
Connecting the Speakers ................................................................................ 5  
Connecting the FM Antenna ............................................................................ 5  
Connecting to Power ....................................................................................... 5  
Using Headphones .......................................................................................... 6  
Listening Safely ......................................................................................... 6  
Basic Operation ................................................................................................... 7  
Tuner Operation ................................................................................................... 8  
CD Player Operation ............................................................................................ 9  
Loading a CD ................................................................................................... 9  
Playing a CD .................................................................................................... 9  
Selecting Another CD .................................................................................... 10  
Automatic Skip ............................................................................................... 10  
Audible Search .............................................................................................. 11  
Random Play ................................................................................................. 11  
Repeat Play ................................................................................................... 12  
Programmed Play .......................................................................................... 12  
Programming and Playing a Sequence of Tracks ................................... 12  
Reviewing the Programmed Sequence .................................................. 13  
Erasing the Programmed Sequence ....................................................... 13  
CD Care Tips ................................................................................................. 13  
Cassette Deck Operation .................................................................................. 15  
Loading a Cassette Tape ............................................................................... 15  
Playing a Cassette Tape ................................................................................ 15  
Recording on a Cassette Tape ...................................................................... 16  
Recording from a CD .............................................................................. 16  
Recording from the Tuner ....................................................................... 17  
Tape Care Tips .............................................................................................. 17  
Preventing Accidental Erasure ................................................................ 17  
Erasing a Cassette Tape ......................................................................... 18  
Restoring Tape Tension and Sound Quality ............................................ 18  
Care and Maintenance ....................................................................................... 19  
Cleaning the Tape Handling Parts ................................................................. 20  
Specifications ..................................................................................................... 21  
4
 
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PREPARATION  
Note: Complete all other connections  
before connecting the system to AC  
power and turning it on.  
CONNECTING THE FM  
ANTENNA  
Attach the supplied FM antenna to the  
300-ohm FM ANTENNA terminal on the  
back of the system.  
CONNECTING THE  
SPEAKERS  
show FM ANTENNA  
terminal  
show SPEAKER terminals  
on back of system  
Note: If you have an outside VHF TV  
antenna, you can use a signal splitter  
with a 300-ohm output to connect your  
stereo system and TV set to the same  
antenna. Your local RadioShack store  
has a wide selection of antennas, con-  
nectors, and splitters.  
1. Press the red speaker terminal tab  
+
labeled SPEAKER R  
on the  
back of the system, put the  
stripped end of the right speaker’s  
striped wire into the terminal, then  
release the tab.  
CONNECTING TO  
POWER  
After you complete all connections,  
plug the music system’s power cord  
into a standard AC outlet.  
BY lights.  
2. Press the black speaker terminal  
tab labeled SPEAKER R - on the  
back of the system, put the  
stripped end of the right speaker’s  
other wire into the terminal, then  
release the tab.  
STAND-  
show STANDBY indicator  
location  
3. Repeat Steps 1 and 2 to connect  
the left speaker to the SPEAKER L  
+
and -terminals.  
5
 
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Warning: To prevent electric shock,  
the power cord plug’s blades are po-  
larized and fit a polarized AC outlet  
only one way. If you have difficulty in-  
serting the plug, do not force it. Turn it  
over and reinsert it.  
Listening Safely  
To protect your hearing, follow these  
guidelines when you use headphones.  
• Do not listen at extremely high  
volume levels. Extended high-  
volume listening can lead to per-  
manent hearing loss.  
USING HEADPHONES  
• Set the volume to the lowest set-  
ting before you begin listening. Af-  
ter you begin listening, adjust the  
volume to a comfortable level.  
You can use headphones (not sup-  
plied) to listen in privacy. Insert the  
headphones’ 1/8-inch (3.5 mm) plug  
into the  
jack.  
• 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.  
location  
show  
Notes:  
• Your local RadioShack store sells  
a wide selection of headphones.  
• Connecting headphones automat-  
ically disconnects the speakers.  
6
 
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BASIC OPERATION  
Warning: To protect your hearing, ro-  
tate VOLUME to the lowest sound level  
before you turn on the system.  
4. Slide  
STEREO WIDE to ON to hear  
the sound equally from the left  
and right speakers.  
Follow these steps to operate your  
system.  
show STEREO WIDE  
location  
1. Set FUNCTION to TAPE, TUNER, or  
CD. POWER ON lights.  
5. Slide E-BASS to ON to emphasize  
bass sounds. To return to normal  
bass sounds, slide it to OFF.  
show FUNCTION  
switch location  
show E-BASS  
location  
2. If you selected TUNER, see “Tuner  
Operation” on Page 8 for how to  
select a station.  
6. To turn off the system, slide FUNC-  
If you selected TAPE or CD, see  
“Cassette Deck Operation” on  
Page 15 or “CD Player Operation”  
on Page 9 for how to play a cas-  
sette tape or a CD.  
TION to  
lights.  
STANDBY. STANDBY  
3. Adjust VOLUME to a comfortable  
listening level.  
show VOLUME  
location  
7
 
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TUNER OPERATION  
1. Slide FUNCTION to TUNER.  
3. Use FM MONO/STEREO to select  
monaural or stereo sound.  
show FUNCTION  
set to TUNER  
show FM MONO/STEREO  
set to STEREO  
TUNER,  
Note: When you select  
• Slide FM MONO/STERO to STE-  
REO to select stereo sound. FM  
STEREO lights when the tuner  
receives an FM broadcast in  
stereo.  
the system automatically tunes to  
the station that was playing when  
the system was turned off or when  
it was last set to TUNER.  
2. Set BAND to AM or FM to tune to  
• If FM stereo reception is noisy,  
slide FM MONO/STERO to  
MONO to select monaural  
sound. The sound is no longer  
in stereo, but reception should  
improve.  
AM or FM radio stations.  
show BAND set to FM  
4. Rotate TUNING to select the de-  
sired station.  
show TUNING  
location  
Notes:  
• The system uses a built-in fer-  
rite antenna for AM reception.  
For the best AM reception, re-  
position the system.  
5. Adjust the volume and set E-BASS  
and STEREO WIDE for the desired  
sound.  
• For the best FM reception, see  
“Connecting the FM Antenna”  
on Page 5.  
8
 
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CD PLAYER OPERATION  
4. After you load the CDs, close the  
CD compartment cover. The sys-  
tem displays the current tray num-  
ber and the number of tracks on  
the CD in that tray.  
LOADING A CD  
1. Slide FUNCTION to CD.  
Notes:  
show FUNCTION set to CD  
• Track number 00and the current  
tray number appear while the sys-  
tem checks each tray.  
• If no CDs are installed, no  
appears.  
2. Lift the CD compartment cover.  
PLAYING A CD  
After loading a CD, follow these steps  
to play it.  
1. Press PLAY/PAUSE  
.
Note: The CD carousel has three  
trays, each labeled with numbers,  
but only two trays are exposed  
when you open the CD compart-  
ment.  
show PLAY/PAUSE location  
3. Place a CD in either (or both) of  
the exposed trays, label side up.  
The CD in the current tray begins  
to play from Track 1. The system  
To load a CD in the third tray,  
press DISC SKIP. The carousel ro-  
tates, exposing the other tray.  
displays  
, the current tray num-  
ber, and the CD’s current track  
number.  
Notes:  
show DISC SKIP location  
• If a tray does not contain a CD,  
the system skips that tray and  
automatically plays the CD in  
the next tray.  
9
 
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• During playback, if the changer  
is subjected to a sudden shock  
or jolt, the speed of rotation  
might change, or some noise  
might be produced. This is not a  
malfunction.  
AUTOMATIC SKIP  
The automatic skip feature lets you  
quickly locate the beginning of any  
track on a CD, including the track cur-  
rently playing, and search forward or  
backward through the tracks. You can  
use automatic skip before or during  
play.  
2. Adjust the volume and set E-BASS  
and STEREO WIDE for the desired  
sound.  
3. To temporarily stop play, press  
y
PLAY/PAUSE  
.
appears. To  
press PLAY/  
resume  
play,  
PAUSE  
again.  
show SKIP locations  
The system plays all the loaded  
CDs once, then stops. To stop  
play sooner, press STOP.  
If a CD is playing:  
show STOP location  
• Press SKIP  
once to skip to  
the beginning of the next track.  
• Press SKIP once to skip back  
to the beginning of the current  
track.  
• Repeatedly press SKIP  
to  
skip backward to the beginning of  
the desired track.  
SELECTING  
ANOTHER CD  
• Repeatedly press SKIP  
to  
skip forward to the beginning of  
the desired track.  
To select another CD, press DISC  
SKIP before or during play.  
If the CD is stopped or paused, re-  
If the system is playing a CD, it stops  
playing that CD and begins playing  
the first track on the selected CD.  
peatedly press SKIP  
or SKIP  
until the system displays the number  
of the track you want to play, then  
press PLAY/PAUSE  
. The CD play-  
er starts playing the selected track.  
10  
 
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PLAY/PAUSE  
3. Press  
. After one  
AUDIBLE SEARCH  
track plays, the system randomly  
selects another track and plays it,  
continuing until all tracks on all  
loaded CDs have played.  
SEARCH  
to search forward or back-  
Hold down  
SEARCH  
or  
ward during play. The CD plays rapid-  
ly and you hear the music at a high  
speed and low volume.  
Notes:  
To repeat the current track,  
SKIP  
press  
. To play the  
SKIP  
next random track, press  
.
show SEARCH locations  
To repeat random play, before  
RE-  
the last track ends, press  
PEAT  
until REPEATALL ap-  
pears.  
4. To briefly stop random play, press  
y
y
PLAY/PAUSE  
.
appears. To  
resume play, press it again.  
RANDOM PLAY  
To stop random play, press  
STOP  
RANDOM  
STOP  
twice or press  
then  
This feature randomly selects and  
plays tracks from all loaded CDs.  
. RANDOMdisappears.  
Note: To randomly select tracks from  
only one or two CDs, you must load  
only those CDs in the CD tray.  
STOP  
1. Press  
to cancel any CD  
function.  
RANDOM  
2. Press  
pears.  
. RANDOM ap-  
show RANDOM location  
11  
 
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REPEAT PLAY  
PROGRAMMED PLAY  
You can repeat a single track on a se-  
lected CD, all tracks on a selected CD,  
all tracks on all loaded CDs, or a  
programmed sequence (see “Pro-  
grammed Play” on Page 12).  
You can program up to 32 selections  
(tracks or CDs) from any loaded CDs  
to play in any order you choose.  
Programming and Playing a  
Sequence of Tracks  
STOP  
1. Press  
to cancel any CD  
show REPEAT location  
function.  
PROGRAM  
2. Press  
. You see:  
RE-  
To repeat a single track, press  
PEAT  
once while the desired track is  
playing. REPEATONE appears, and  
the CD player continuously replays  
the track.  
DISC SKIP  
3. Press  
to select the CD  
containing the tracks you want to  
store.  
To repeat all tracks on a selected CD,  
DISC SKIP  
CD. Then repeatedly press  
until REPEATONEDISCappears.  
press  
to select the desired  
REPEAT  
SKIP  
SKIP  
4. Press  
or  
to  
select the track number you want  
to store, and press  
store it.  
PROGRAM  
to  
To repeat a programmed sequence,  
PROGRAM  
Or, press  
twice to store  
REPEAT  
press  
until REPEATALLap-  
the entire CD as one selection. AL  
(all) appears after the CD number.  
pears. The CD player continuously re-  
plays the programmed sequence.  
5. Repeat Steps 3–5 to program ad-  
ditional tracks.  
To repeat all tracks on all loaded CDs,  
REPEAT  
repeatedly press  
until RE-  
Note: You cannot store more than  
32 tracks. Any track stored after  
the 32nd track replaces the 32nd  
track.  
PEATALLDISCappears.  
To cancel repeat play at any time, re-  
REPEAT  
peatedly press  
disappears.  
until REPEAT  
12  
 
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6. Press PLAY/PAUSE  
to play the  
Reviewing the Programmed  
Sequence  
tracks in the programmed order.  
PROGRAM appears and the sys-  
tem displays the current tray and  
track number.  
While play is stopped, repeatedly  
press PROGRAM to review the pro-  
grammed sequence. You see the  
track number and the track’s se-  
quence number.  
Notes:  
• You can use SKIP  
or SKIP  
and SEARCH or  
SEARCH to move between se-  
lections during programmed  
play.  
Erasing the Programmed  
Sequence  
• You cannot use random play  
while a programmed sequence  
is stored.  
To erase the entire programmed se-  
quence, press  
STOP twice. PRO-  
GRAMdisappears and the current tray  
number and the number of tracks ap-  
pear. You can also erase the pro-  
• Pressing DISC SKIP has no ef-  
fect while a programmed se-  
quence plays.  
grammed  
sequence  
by  
sliding  
FUNCTION to any other position.  
7. Programmed play automatically  
stops at the end of the last pro-  
grammed track. To stop the CD  
player at any time during pro-  
CD CARE TIPS  
grammed play, press STOP  
.
Even though a compact disc is very  
durable, treat the CD surface with  
care. We recommend the following  
precautions:  
The last programmed CD’s num-  
ber and number of tracks appear.  
Notes:  
• Do not place anything but a CD in  
the disc tray. This can damage the  
drive mechanism.  
To replace a track while play is  
stopped, repeatedly press PRO-  
GRAM until the track number you  
want to replace appears.  
• Do not write on either side of the  
CD, particularly the non-label side  
(signals are read from the non-la-  
bel side).  
To add a track while play is  
stopped, press PROGRAM once, -  
- - appears. Then repeat Steps  
3–5 to select and store the new  
track. The new track is added to  
the end of the programmed se-  
quence.  
13  
 
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• Do not store CDs in high-  
temperature, high-humidity loca-  
tions. The CDs might warp.  
• Keep CDs dry. A water drop can  
act as a lens and affect the laser  
beam’s focus.  
• Always handle a CD by the edges  
to avoid fingerprints and always  
keep it in its protective case or  
sleeve when not in use. Finger-  
prints and scratches on the CD’s  
surface can prevent the laser  
beam from correctly reading the  
digital information. To clean the  
CD surface, use a CD cleaner kit  
(such as Cat. No. 42-225). If the  
CD gets scratched, use Scratch ’n  
Fix (RadioShack Cat. No. 42-  
127).  
14  
 
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CASSETTE DECK OPERATION  
The system has one cassette deck for  
normal cassette tape playback and re-  
cording.  
3. Insert the cassette tape into the  
tape guides in the compartment  
door, with its exposed tape edge  
facing down, the side you want to  
play facing you, and its full reel to  
the left.  
The deck has a full-release auto-stop  
system to protect tapes and prevent  
pinch roller damage. When a tape  
reaches the end of a side, the tape  
mechanism automatically stops and  
releases the tape.  
4. Close the compartment door.  
PLAYING A CASSETTE  
TAPE  
LOADING A CASSETTE  
TAPE  
After loading a cassette tape, follow  
these steps to play it.  
1. Take up any slack in the tape by  
turning the cassette’s hub with a  
pencil. If you do not remove ex-  
cess slack, the tape might be-  
come tangled in the record/  
1. Set FUNCTION to TAPE.  
2. Press PLAY . The tape plays un-  
til it reaches the end of the side,  
then it automatically stops.  
playback  
mechanism.  
Avoid  
touching the tape.  
show PLAY location  
show pencil in cassette hub  
Notes:  
To temporarily stop playback,  
2. Press STOP/EJECT  
to open  
y
press PAUSE . Press PAUSE  
the cassette compartment door.  
y
again to continue playback.  
show STOP/EJECT location  
show PAUSE location  
15  
 
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To fast-forward or rewind the  
Notes:  
• The recording level is preset. E-  
tape, press STOP/EJECT  
then press FAST-F  
WIND  
or RE-  
BASS, STEREO WIDE, and VOL-  
UME have no effect on the record-  
ing level or quality.  
.
Tape quality greatly affects the  
quality of the recording. We rec-  
ommend regular length (60- or 90-  
minute) cassette tapes. For low-  
noise, wide-range recordings, use  
normal-bias tape.  
show FAST-F and  
REWIND location  
Recording from a CD  
To stop fast-forward or rewind,  
press STOP/EJECT  
.
1. Load a blank cassette tape, or  
one you want to record over.  
3. Adjust the volume and set E-BASS  
and STEREO WIDE for the desired  
sound.  
y
2. Press PAUSE  
then RECORD  
.
PLAY  
and RECORD  
lock  
down.  
4. To manually stop play, press  
STOP/EJECT  
. Press STOP/  
3. Set FUNCTION to CD.  
EJECT  
while the cassette  
4. Load the desired CDs in the CD  
player.  
player is stopped to open the cas-  
sette compartment and remove  
the tape.  
5. Select the desired CD track or  
program a sequence (if you do not  
want to record an entire CD in or-  
der).  
RECORDING ON A  
CASSETTE TAPE  
: To copy a CD’s tracks in  
Note  
random sequence, press RAN-  
You can record from the CD player or  
radio to a cassette tape.  
DOM so RANDOMappears.  
y
6. Press both PAUSE  
on the deck  
on the CD  
and PLAY/PAUSE  
If you use a cassette tape  
Caution:  
with the erase-protection tabs re-  
moved, do not force down RECORD  
player. Recording starts when  
y
PAUSE releases.  
.
This can damage the recording mech-  
anism. See “Preventing Accidental  
Erasure” on Page 17.  
16  
 
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7. To stop recording before it auto-  
matically stops, press  
the CD player, then press STOP/  
EJECT on the deck.  
STOP on  
show BEAT 1/2 location  
Recording from the Tuner  
1. Load a blank cassette, or one you  
want to record over.  
y
2. Press PAUSE then RECORD  
.
3. Set FUNCTION to TUNER.  
5. To stop recording before it auto-  
4. Select the desired station, then  
press PAUSE on the deck to re-  
matically stops, press STOP/  
EJECT  
on the deck.  
lease it and start recording. The  
system records on the cassette  
until it reaches the end of the side,  
then the cassette deck automati-  
cally stops.  
TAPE CARE TIPS  
Preventing Accidental  
Erasure  
Notes:  
To temporarily stop recording,  
press PAUSE . Press PAUSE  
again to resume recording.  
Cassette tapes have two erase-  
protection tabs — one for each side.  
To protect a recording from being ac-  
cidentally recorded over or erased,  
use a screwdriver to remove one or  
both of the cassette tape’s erase-  
protection tabs.  
• If you record broadcasts from  
AM radio, you might hear a low-  
volume hum when you play  
back the recording. If this oc-  
curs, set BEAT 1/2 to the other  
position and try again.  
show Side A erase protection tab  
being removed with a screwdriver  
17  
 
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If you want to record on a tape side af-  
ter you have removed the erase-  
protection tab, place a piece of strong  
plastic tape over that side’s erase-  
protection hole.  
Restoring 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 quality, fast-  
forward 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.  
show Side A erase protection tab  
being covered by tape  
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.  
Notes:  
• Be sure you cover only the hole  
originally covered by the erase-  
protection tab.  
• Removing the erase-protection  
tabs does not prevent a bulk  
eraser from erasing a cassette  
tape.  
Erasing a Cassette Tape  
To erase a previously recorded sec-  
tion of a tape, simply record over it. To  
erase the entire cassette tape, let the  
tape record to the end with no source  
playing.  
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.  
18  
 
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CARE AND MAINTENANCE  
Your Optimus System 747 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. Liquids  
might contain minerals that can corrode the electronic circuits.  
Handle the system gently and carefully. Dropping it can damage cir-  
cuit boards and cases and can cause the system to work improperly.  
Use and store the system only in normal temperature environments.  
Temperature extremes can shorten the life of electronic devices and  
distort or melt plastic parts.  
Keep the system away from dust and dirt, which can cause prema-  
ture wear of parts.  
Wipe the system with a damp cloth occasionally to keep it looking  
new. Do not use harsh chemicals, cleaning solvents, or strong deter-  
gents to clean the system.  
Modifying or tampering with the system’s internal components can cause a mal-  
function and might invalidate your system’s warranty and void your FCC authoriza-  
tion to operate it. If your system is not performing as it should, take it to your local  
RadioShack store for assistance.  
19  
 
13-1295.fm Page 20 Wednesday, July 14, 1999 7:10 PM  
5. When you finish cleaning, press  
STOP/EJECT  
CLEANING THE TAPE  
HANDLING PARTS  
, close the cassette  
compartment door, and reconnect  
power.  
Dirt, dust or particles of the tape’s  
coating can accumulate on the tape  
heads and other parts that the tape  
touches. This can greatly reduce the  
performance of the cassette player.  
Use the following cleaning procedure  
after every 20 hours of tape player op-  
eration. Your local RadioShack store  
sells a wide selection of cassette deck  
cleaning supplies.  
1. Disconnect power.  
2. Open the cassette compartment  
door.  
PLAY  
3. Press  
on the deck to expose  
the tape-handling parts.  
4. Use a cotton swab dipped in de-  
natured alcohol or tape head  
cleaning solution to clean the  
record/playback head, pinch roller,  
capstan, tape guides, and erase  
head.  
show parts to be cleaned  
with callout to all parts  
20  
 
13-1295.fm Page 21 Wednesday, July 14, 1999 7:10 PM  
SPECIFICATIONS  
Cassette  
Tape Speed ........................................................................... 17/8 ips (4.75 cm/sec)  
Wow and Flutter ................................................................................ 0.35% WRMS  
Frequency Response ............................................................. 125 Hz–8 kHz ±6 dB  
Recording System ...................................................................................... AC Bias  
Erase System ............................................................................................ Magnetic  
CD Player  
Number of Tracks to be Programmed ..................................................... 32 Tracks  
Frequency Response (±3 dB) .......................................................... 100 Hz–20 kHz  
Dynamic Range .............................................................................................. 82 dB  
Signal-to-Noise ................................................................................... (JIS-A) 68 dB  
Harmonic Distortion (at 1 kHz) ........................................................................ 0.5%  
Separation (at 1 kHz) ...................................................................................... 40 dB  
Sampling Frequency .................................................................................. 44.1 kHz  
Quantization Number ........................................................................................ 1-Bit  
Oversampling ............................................................................................. 8 Times  
Pick-Up System ........................................................................................... 3 Beam  
Optical Source ....................................................................... Semiconductor Laser  
Wavelength .................................................................................................. 780 nm  
General  
Power Supply ............................................................................................ 120V AC  
Power Output .......................................................................... 5 Watts per Channel  
Tuning Range ............................................................................ AM: 530–1710 kHz  
FM: 88–108 MHz  
Speaker Dimensions (HWD) .............................................71/16 × 71/2 × 101/4 Inches  
(180 × 190 × 260 mm)  
Speaker Size .............................................................................................. 5 Inches  
Speaker Impedance .................................................................................... 4 Ohms  
System Dimensions (HWD) ........................................... 111/2 × 125/8 × 107/8 Inches  
(292 × 321 × 277 mm)  
Weight ...................................................................................................... 17 lb 3 oz  
(7.8 kg)  
Specifications are typical; individual units might vary. Specifications are subject to  
change and improvement without notice.  
21  
 
13-1295.fm Page 22 Wednesday, July 14, 1999 7:10 PM  
NOTES  
22  
 
13-1295.fm Page 23 Wednesday, July 14, 1999 7:10 PM  
23  
 
13-1295.fm Page 24 Wednesday, July 14, 1999 7:10 PM  
Limited Ninety-Day Warranty  
This product is warranted by RadioShack against manufacturing defects in material and workman-  
ship under normal use for ninety (90) days from the date of purchase from RadioShack company-  
owned stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED  
HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES,  
INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,  
ARE LIMITED IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES  
CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABIL-  
ITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RE-  
SPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE  
OR PERFORMANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WAR-  
RANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVE-  
NIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT,  
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN AD-  
VISED OF THE POSSIBILITY OF SUCH DAMAGES.  
Some states do not allow the limitations on how long an implied warranty lasts or the exclusion of in-  
cidental or consequential damages, so the above limitations or exclusions may not apply to you.  
In the event of a product defect during the warranty period, take the product and the RadioShack  
sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, un-  
less otherwise provided by law: (a) correct the defect by product repair without charge for parts and  
labor; (b) replace the product with one of the same or similar design; or (c) refund the purchase  
price. All replaced parts and products, and products on which a refund is made, become the prop-  
erty of RadioShack. New or reconditioned parts and products may be used in the performance of  
warranty service. Repaired or replaced parts and products are warranted for the remainder of the  
original warranty period. You will be charged for repair or replacement of the product made after the  
expiration of the warranty period.  
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse,  
accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or  
maintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs  
other than those provided by a RadioShack Authorized Service Facility; (c) consumables such as  
fuses or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costs  
of product removal, installation, set-up service adjustment or reinstallation.  
This warranty gives you specific legal rights, and you may also have other rights which vary from  
state to state.  
RadioShack Customer Relations, Dept. W, 100 Throckmorton St., Suite 600, Fort Worth, TX 76102  
We Service What We Sell  
3/97  
RadioShack  
A Division of Tandy Corporation  
Fort Worth, Texas 76102  
11A7  
Printed in Hong Kong  
 

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