42-5075.fm Page 1 Thursday, August 12, 1999 1:03 PM
Cat. No. 42-5075/42-5076
OWNER’S MANUAL
Please read before using this equipment.
Portable Compact Disc Player
with Digital Anti-Shock
CD-3680 (42-5075)
CD-3690 (42-5076)
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42-5075.fm Page 3 Thursday, August 12, 1999 1:03 PM
Resume — lets you easily resume lis-
tening to the track that was selected
when you stopped playing a CD.
Important: You need a pair of stereo
headphones, earphones, or amplified
speakers, or a home audio or auto-
sound system to use your CD player.
Your local RadioShack store carries a
complete line of headphones, ear-
phones, speakers, and audio sys-
tems.
Three Power Sources — let you
power your CD player from two stan-
dard or rechargeable nickel-cadmium
AA batteries, your vehicle’s battery us-
ing the supplied DC adapter, or stan-
dard AC power using an optional AC
adapter.
CDs that can be played on this CD
player have this mark on them:
Power/Charging Jack — lets you
charge
nickel-cadmium batteries
without removing them from the CD
player.
The CD player’s advanced technology
makes it simple to operate. But, be
sure you read this Owner’s Manual
completely so you can take advantage
of all its advanced features.
Lighted Buttons and Display —
when you operate the CD player with
an AC or DC adapter, the buttons and
display light up for easy viewing in the
dark.
Supplied CD-to-Cassette Adapter
— lets you connect the CD player di-
rectly to a cassette player in your
home or vehicle.
We recommend you record your CD
player’s serial number here. The num-
ber is inside the CD player’s battery
compartment.
Line Out Jack and Supplied Y-
Cable — makes it easy to connect the
CD player to your sound system’s low-
level inputs.
Serial Number __________________
5- or 3-Inch CD Compatible
Carrying Pouch (Supplied with 42-
5076 only)
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This CD player is made and tested to
meet exacting safety standards. It
meets FCC requirements and com-
plies with safety performance stan-
dards of the U.S. Department of
Health and Human Services.
FCC INFORMATION
This equipment complies with the lim-
its for a Class B digital device as spec-
ified in Part 15 of FCC Rules. These
limits provide reasonable protection
against radio and TV interference in a
residential area. However, your CD
player might cause TV or radio inter-
ference even when it is operating
properly. To eliminate interference,
you can try one or more of the follow-
ing corrective measures:
Warnings:
• This CD player employs a laser
light beam. Only a qualified ser-
vice person should remove the
cover or attempt to service this
device, due to possible eye injury.
• Increase the distance between the
CD player and the radio or TV.
• The use of controls, adjustments,
or procedures other than those
specified herein might result in
hazardous radiation exposure.
• Use outlets on different electrical
circuits for the CD player and the
radio or TV.
Consult your local RadioShack store if
the problem still exists.
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CONTENTS
Powering the CD Player ...................................................................................... 6
Using Batteries ................................................................................................ 6
Recharging Nickel-Cadmium Batteries ..................................................... 7
Using Vehicle Battery Power ........................................................................... 8
Using AC Power .............................................................................................. 8
Connections ....................................................................................................... 10
Connecting Earphones/Headphones ............................................................ 10
Listening Safely ...................................................................................... 10
Traffic Safety ........................................................................................... 10
Connecting Amplified Speakers .................................................................... 11
Connecting to a Home Audio System ........................................................... 11
Connecting to an Autosound System ............................................................ 11
Operation ............................................................................................................ 13
Loading a CD ................................................................................................ 13
Playing a CD ................................................................................................. 13
2
Digital Anti-Shock System (DAS ) ................................................................ 14
Automatic Search Music System (ASMS) ..................................................... 14
Locking the Controls ..................................................................................... 15
Viewing the Elapsed Time ............................................................................. 15
Turning E-Bass On and Off ........................................................................... 15
Audible Search .............................................................................................. 16
Pause/Cue .................................................................................................... 16
Intro Scan ...................................................................................................... 16
Repeat Play .................................................................................................. 16
Random Play ................................................................................................ 17
Programmed Play ......................................................................................... 17
Resume ......................................................................................................... 18
Troubleshooting ................................................................................................ 19
Care and Maintenance ...................................................................................... 20
Replacing the DC Adapter’s Fuse ................................................................. 21
CD Care Tips ................................................................................................ 21
Specifications .................................................................................................... 22
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POWERING THE CD PLAYER
You can power your CD player from
any of these sources:
• Two AA alkaline batteries (not
supplied)
• Two rechargeable AA nickel-
cadmium batteries (not supplied)
• Vehicle battery power using the
supplied DC adapter
1. Press down on the battery com-
• Standard AC power using an AC
adapter (not supplied)
partment cover and slide it in the
direction of the arrow on the
cover, then lift the cover.
Note: Connecting an AC or DC adapt-
er to the CD player with non-recharge-
able batteries installed disconnects
the batteries.
Caution: The battery compart-
ment cover is attached to the CD
player. Do not try to remove it.
2. Put two AA alkaline batteries or
two AA nickel-cadmium batteries
in the battery compartment, as
indicated by the polarity symbols
(+ and –) marked inside.
USING BATTERIES
You can power your CD player from
two AA alkaline batteries (such as Ra-
dioShack Cat. No. 23-552) or two re-
chargeable AA nickel-cadmium bat-
teries (such as Cat. No. 23-125).
Note: Before you use the CD
player with nickel-cadmium batter-
ies, you need to charge them,
either in an external battery
charger (such as Cat. No. 23-134)
or in the CD player (see “Recharg-
ing Nickel-Cadmium Batteries” on
Page 7).
Cautions:
• Always use fresh, or freshly
charged, batteries of the required
size and type.
3. Close the battery compartment
cover.
• Do not mix old and new batteries,
different types of batteries (stan-
dard, alkaline, or rechargeable
nickel-cadmium), or recharge-
able batteries of different capaci-
ties.
If
flashes on the display, the
sound distorts, or the volume weak-
ens, replace or recharge the batteries.
Follow these steps to install the batter-
ies.
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Cautions:
Follow these steps to charge nickel-
cadmium batteries in the CD player.
• If you will not be using the CD
player with battery power for sev-
eral months, remove the batteries.
1. Connect an AC adapter or the
supplied DC adapter to your CD
player (see “Using AC Power” on
Page 8 or “Using Vehicle Battery
Power” on Page 8).
• Dispose of old batteries promptly
and properly.
2. With rechargeable batteries in-
stalled and the CD compartment
Recharging Nickel-Cadmium
Batteries
STOP/CLEAR
cover closed, press
.
CHG flashes on the display. Then
CHG CHG CHG appears and the
CD player starts to recharge the
batteries.
If you connect the supplied DC adapt-
er (see “Using Vehicle Battery Power”
on Page 8) or an AC adapter (see
“Using AC Power” on Page 8) to the
CD player, you can set the CD play-
er to charge nickel-cadmium batter-
ies while they are inside the CD
player’s battery compartment.
Cautions:
It takes about 3 hours to charge
new or fully discharged nickel-
cadmium batteries. Subsequent
charges take 2–3 hours.
• Use only the supplied DC adapter
or an AC adapter that meets the
specifications in “Using AC Power”
on Page 8 to recharge the batteries
in the CD player. Other adapters
could damage your CD player or
the batteries.
3. When the batteries are fully
charged, the CD player automati-
cally stops charging them and
turns itself off. Disconnect the AC
or DC adapter.
• Do not use the CD player or open
the CD compartment cover while
you are charging nickel-cadmium
batteries.
• Nickel-cadmium batteries charge
more efficiently if the temperature
is above 40°F (4.5°C) and below
90°F (32°C).
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Important: Your CD player is capable
of using nickel-cadmium batteries. At
the end of the batteries’ useful life,
they must be recycled or disposed of
properly. Contact your local, county,
or state hazardous waste manage-
ment authorities for information on re-
cycling or disposal programs in your
area. Some options that might be
available are: municipal curbside col-
lection, drop-off boxes at retailers
such as your local RadioShack store,
recycling collection centers, and mail-
back programs.
Follow these steps to connect the
cigarette-lighter socket to the CD play-
er.
1. Insert the DC adapter’s barrel
DC IN 6V
plug into the CD player’s
jack.
2. Make sure the DC adapter’s tip is
securely attached, then plug the
DC adapter’s other end into your
vehicle’s cigarette-lighter socket.
USING VEHICLE
BATTERY POWER
Note: If the CD player does not
operate when you use the DC
adapter, unplug the cord from the
cigarette-lighter socket and clean
any ashes or debris from the
socket.
You can power your CD player from
your vehicle’s cigarette-lighter socket
with the supplied DC adapter.
Cautions:
• The supplied DC adapter supplies
6 volts and delivers at least 500
milliamps. Its center tip is set to
positive, and its plug correctly fits
USING AC POWER
DC IN 6V
the CD player’s
jack.
You can power the CD player from a
standard AC outlet using an optional
AC adapter such as Cat. No. 273-
1664.
Using a DC adapter that does not
meet these specifications could
damage the CD player or the DC
adapter.
Cautions:
• When you finish using the CD
player, always unplug the DC
adapter from the cigarette-lighter
socket before you disconnect it
from your CD player.
• You must use an AC adapter that
supplies 6 volts and delivers at
least 500 milliamps. Its center tip
must be set to positive, and its
plug must correctly fit the CD
DC IN 6V
player’s
jack. The recom-
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mended adapter meets these
specifications. Using an adapter
that does not meet these specifi-
cations could damage the CD
player or the adapter.
• When you finish using the AC
adapter, unplug it from the AC out-
let first, then disconnect it from the
CD player.
Follow these steps to connect the CD
player to AC power.
1. Insert the AC adapter’s 4.0 mm
outer diameter/1.7 mm inner
diameter barrel plug into the
adapter’s cord, setting TIP to +
(positive).
2. Set the AC adapter’s voltage
switch to 6V.
3. Insert the AC adapter’s barrel plug
into the CD player’s DC IN 6V jack.
4. Plug the other end of the adapter
into a standard AC outlet.
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CONNECTIONS
You can listen to your CD player by
connecting earphones/headphones or
amplified speakers to the player’s
PHONES jack, or by connecting a
home audio or autosound system to
the CD player’s LINE OUT jack.
Listening Safely
To protect your hearing, follow these
guidelines when you use earphones
or headphones.
• Set the volume to the lowest set-
ting before you begin listening.
After you begin listening, adjust
the volume to a comfortable level.
Note: If the jacks on your equipment
do not match the plugs on the sup-
plied Y-cable, check with your local
RadioShack store for the proper cable
adapter.
• Do not listen at extremely high
volume levels. Extended high-
volume listening can lead to per-
manent hearing loss.
CONNECTING
EARPHONES/
HEADPHONES
• 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.
For private listening, you can plug a
pair of stereo earphones or head-
1
phones with a /8-inch plug (not sup-
plied) into the PHONES jack on the CD
player.
Traffic Safety
Do not wear earphones or head-
phones while operating a motor vehi-
cle or riding a bicycle. This can create
a traffic hazard and could be illegal in
some areas.
Even though some earphones and
headphones let you hear some out-
side sounds when listening at normal
volume levels, they still can present a
traffic hazard.
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CONNECTING
AMPLIFIED SPEAKERS
CONNECTING TO AN
AUTOSOUND SYSTEM
You can listen to your CD player
through optional amplified speakers
(such as Cat. No. 40-1387). Plug the
You can listen to your CD player
through your autosound system in one
of the following ways:
1
speaker cable’s /8-inch plug into the
• If your autosound system has
LINE IN jacks, connect the sup-
PHONES
CD player’s
jack.
1
plied Y-cable’s /8-inch plug to the
LINE OUT
CD player’s
jack. Then
connect the Y-cable’s phono
plugs to your autosound system’s
LINE IN input jacks.
CONNECTING TO A
HOME AUDIO SYSTEM
You can listen to your CD player
through your home audio system’s
amplifier/receiver and full-size speak-
ers. Connect the supplied Y-cable’s
• If your autosound system has a
CD input jack, connect one end of
a 1/8-inch stereo patch cable (such
as Cat. No. 42-2387, not supplied)
1/8-inch plug to the CD player’s
LINE
LINE OUT
to the CD player’s
jack.
OUT
jack. Then connect the Y-cable’s
Then connect the other end to
your autosound system’s CD
INPUT jack.
phono plugs to your audio system’s
left and right CD, AUX, or TV audio in-
put jacks.
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• If your autosound system has a
cassette deck, connect the sup-
plied CD-to-cassette adapter’s
plug to the CD player’s PHONES
jack. Then insert the adapter’s
other end into your cassette deck
just like a standard cassette.
You can mount your CD player
Note:
in your car using an optional mounting
bracket. Your local RadioShack store
has a complete line of mounting
brackets and hardware.
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OPERATION
LOADING A CD
PLAYING A CD
Caution: To help prevent dust from
entering the CD player, always keep
the CD compartment cover closed ex-
cept when loading or unloading CDs.
Warning: To protect your hearing if
you are using earphones or head-
phones, set VOLUME to its lowest set-
ting before you play a CD.
1. Set OFF/RESUME/HOLD to OFF.
Press PLAY/PAUSE. The CD player
automatically turns on and 00 briefly
flashes on the display. Then
and
the current track number appear and
Track 1 begins to play.
2. Slide OPEN in the direction of the
arrow and lift the CD compartment
cover.
If you connected an earphone/head-
phones or amplified speakers to the
CD player’s PHONES jack, use VOL-
UME on the CD player to adjust the
volume.
3. Carefully place a CD, label side
up, over the center hub inside the
CD compartment. Then gently
press the center of the CD until it
snaps down onto the center hub.
Center Hub
If you connected the CD player to your
home audio system or autosound sys-
tem using the LINE OUT jack, you
must use the home audio or auto-
sound system’s volume control to ad-
just the volume.
4. Close the compartment cover.
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If you connected an external power
source, the CD player’s buttons light
until you stop the CD and turn the CD
player off, or the CD player turns itself
off automatically.
To turn on the anti-shock system, set
DAS OUT/IN to IN. If the CD player is
playing a CD, the sound briefly stops,
then
appears on the display
and the sound continues.
To temporarily stop play, press PLAY/
PAUSE.
flashes. To resume
play, press PLAY/PAUSE again.
When the last track finishes playing,
the CD stops and the display alter-
nately shows the total number of
tracks and total playing time of the CD
for about 2 minutes, then the CD play-
er automatically turns off. To turn it off
sooner, press STOP/CLEAR.
AUTOMATIC SEARCH
MUSIC SYSTEM (ASMS)
You can use ASMS before or during
regular or programmed play (see “Pro-
grammed Play” on Page 17) to quickly
locate any track on a CD.
While the CD is stopped, repeatedly
press
or
to move backward
or forward to the desired track. Press
PLAY/PAUSE to play the track.
DIGITAL ANTI-SHOCK
SYSTEM (DAS )
2
During play, press
the beginning of the current track.
Press twice to return to the be-
to return to
Your CD player contains special cir-
cuits to overcome sound skipping
problems caused by shock or vibra-
tion. This means you can carry the CD
player anywhere you go or use it in
your vehicle. When you turn on the
anti-shock system, the CD player con-
tinuously saves 3 seconds (42-5075)
or 10 seconds (42-5076) of music in
memory. During a shock or vibration
that would normally make a track skip
or pause, the CD player plays directly
from memory.
ginning of the previous track. To move
to the beginning of the next track,
press
.
The CD player consumes addi-
Note:
tional battery power when you use the
anti-shock system. When you use the
CD player in a stable location, set DAS
OUT/IN to OUT to save battery power.
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To turn off the anti-shock system, set
DAS OUT/IN to OUT. The sound briefly
VIEWING THE ELAPSED
TIME
stops, then
display.
disappears from the
To display the current track’s elapsed
time, hold down MEMORY/E-BASS for
about 1 second. Hold down MEMORY/
E-BASS again to return to the current
track display.
LOCKING THE
CONTROLS
You can protect your CD player from
accidental program changes by lock-
ing all controls except OPEN, VOL-
UME, DAS OUT/IN (and OFF/RESUME/
HOLD itself).
To turn on the control lock, set OFF/
RESUME/HOLD to HOLD. To turn it off,
set OFF/RESUME/HOLD to OFF.
TURNING E-BASS ON
AND OFF
To enhance the bass sound, press
MEMORY/E-BASS.
appears on
the display. To turn the bass sound
off, press MEMORY/E-BASS again.
disappears from the display.
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AUDIBLE SEARCH
INTRO SCAN
To search forward or backward during
You can set the stereo to play the first
10 seconds of each track on the CD,
so you can find the track you want to
listen to.
.
play, hold down
or
The CD
plays rapidly and you hear the music at
a high speed and low volume. The cur-
rent track’s elapsed time appears on
the display.
To begin scanning, repeatedly press
PLAY MODE
until
appears on the
display. Intro scan starts from the first
track.
To return to normal play, repeatedly
PLAY MODE
press
until
disap-
pears.
Release the button to resume normal
play.
Notes:
• Intro scan plays the tracks in the
programmed order if you have
programmed a sequence (see
“Programmed Play” on Page 17).
Note: If you hold down
while the
last track is playing, audible search
starts again at the beginning of that
same track. If you hold down
during the first track, audible search
stops at the beginning of Track 1.
• You can use
skip through the tracks.
and
to
PAUSE/CUE
REPEAT PLAY
To temporarily pause play, press
You can repeat a single track on the
CD, all tracks on the CD, or a pro-
grammed sequence (see “Pro-
grammed Play” on Page 17).
PLAY/PAUSE
play. Press
sume play.
.
flashes on the dis-
PLAY/PAUSE
again to re-
PLAY/PAUSE
You can also use
to se-
PLAY
To repeat a single track, press
lect (cue) a track before playing.
When the CD player is stopped, press
MODE
once while the desired track is
playing.
appears on the display,
or
to select the track you
and the CD player continuously re-
plays the track.
PLAY/
want to cue. Then press
PAUSE
twice.
flashes.
When you are ready to play the track,
PLAY/PAUSE
press
again.
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To cancel random play, repeatedly
press PLAY MODE until
disap-
pears.
PROGRAMMED PLAY
You can program up to 24 tracks from
the loaded CD to play in any order you
choose, and you can program the
same track to play more than once.
To repeat all tracks on a CD or in a pro-
grammed sequence, press PLAY
MODE twice.
appears on the
display.
Follow these steps to program and
play a sequence.
1. While the CD is stopped, hold
down MEMORY/E-BASS for about
3 seconds. The display shows the
selection number (01) and the
track number (00), and
flashes.
When the CD player reaches the end
of the CD or the programmed se-
quence, it continuously returns to the
first track and replays all the tracks.
2. Repeatedly press either
or
to display the number of the
first track you want to program.
To cancel repeat play, repeatedly
3. Press MEMORY/E-BASS to store
the selected track number. The
selection number advances by
one and the track number returns
to 00.
press PLAY MODE until
and
disappear,
RANDOM PLAY
4. Repeat Steps 2 and 3 for each
track you want to program, up to
24 tracks.
In random play, the CD player plays all
the tracks once in random order, then
automatically stops. To start random
play, repeatedly press PLAY MODE until
appears on the display.
When you store the 24th
Note:
track in memory, FuLL appears.
5. To play the programmed se-
quence, press PLAY/PAUSE.
lights and the first track in the
sequence plays.
If you select random play during
Note:
programmed play, the CD player
stops the programmed sequence and
starts random play of all tracks.
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While the programmed sequence
RESUME
plays, you can use
to move
forward or
in the sequence.
to move backward
You can set the CD player to remem-
ber the track it was playing when you
stopped the CD or it turned itself off.
That way, when you play the CD
again, the CD player resumes playing
at the beginning of that track.
6. After the last programmed track
ends, the CD player stops. To stop
the CD before the end of the
sequence, press STOP/CLEAR.
To set the CD player to resume, set
OFF/RESUME/HOLD to RESUME at any
time. Then, after you have pressed
STOP/CLEAR to turn off the CD player,
you can simply press PLAY/PAUSE to
resume play.
You can replay, check, or add
Note:
to the programmed sequence within 2
minutes after play stops. Otherwise,
the CD player turns off and clears the
programmed sequence.
• To replay the programmed se-
quence, press PLAY/PAUSE.
To cancel resume play, set OFF/
RESUME/HOLD to OFF or open the CD
compartment.
• To check the programmed se-
quence, press MEMORY/E-BASS.
The display shows the number of
the first programmed track. Each
time you press MEMORY/E-BASS,
the display shows the number of
the next track in the sequence.
Notes:
• If you press STOP/CLEAR very
close to the beginning or end of a
track, the CD player might play
the track before or after that track
instead when you press PLAY/
PAUSE. This is not a malfunction.
• To add to the end of a pro-
grammed sequence, repeatedly
press MEMORY/E-BASS until track
number 00 appears. Then follow
Steps 3 and 4.
• If you install a different CD while
OFF/RESUME/HOLD is set to RE-
SUME, play might not start from
Track 1 on the new CD. If this
happens, press STOP/CLEAR, set
OFF/RESUME/HOLD to OFF, then
press PLAY/PAUSE again.
To clear the programmed sequence
from memory, press STOP/CLEAR
twice or open the CD compartment
door.
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TROUBLESHOOTING
If you have problems operating your CD player, check this chart. If these sugges-
tions do not solve the problem, contact your local RadioShack store for assistance.
Problem
Possible Cause
Solution
The CD player does not
work.
OFF/RESUME/HOLD is
set to HOLD.
Set OFF/RESUME/HOLD
to OFF.
No power.
Be sure the batteries are
not weak.
Make sure an AC adapter
or the DC adapter is
properly connected.
If you are using a DC
adapter to power the CD
player, check the adapt-
er’s fuse. See “Replacing
the DC Adapter’s Fuse”
on Page 21.
A CD is loaded, but the
CD player does not
start.
The CD is loaded
upside-down.
Reload the CD, label side
up.
The CD is dirty or
defective.
Clean the CD and reload
it, or try a different CD.
See “Replacing the DC
Adapter’s Fuse” on
Page 21.
Sound from a CD skips. The CD is dirty or
defective.
Clean the CD and reload
it, or try a different CD.
See “Replacing the DC
Adapter’s Fuse” on
Page 21.
Vibration is excessive.
Set DAS OUT/IN to IN.
Place the CD player in a
different location.
Moisture has con-
densed on the pickup
lens.
Wait 1 hour for the mois-
ture to evaporate.
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CARE AND MAINTENANCE
Your Optimus CD-3680/CD-3690 Portable Compact Disc Player with Digital Anti-
Shock is an example of superior design and craftsmanship. The following sugges-
tions will help you care for your CD player so you can enjoy it for years.
Keep the CD player dry. If it gets wet, wipe it dry immediately. Liquids
might contain minerals that can corrode the electronic circuits.
Use and store the CD player only in normal temperature environ-
ments. Temperature extremes can shorten the life of electronic de-
vices, damage batteries, and distort or melt plastic parts.
Keep the CD player away from dust and dirt, which can cause prema-
ture wear of parts.
Handle the CD player gently and carefully. Dropping it can damage
circuit boards and cases and can cause the CD player to work im-
properly.
Use only fresh batteries of the required size and type. Batteries can
leak chemicals that damage your CD player’s electronic parts.
Wipe the CD player with a damp cloth occasionally to keep it looking
new. Do not use harsh chemicals, cleaning solvents, or strong deter-
gents to clean the CD player.
Modifying or tampering with the CD player’s internal components can cause a mal-
function and might invalidate your CD player’s warranty and void your FCC authori-
zation to operate it. If your CD player is not performing as it should, take it to your
local RadioShack store for assistance.
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42-5075.fm Page 21 Thursday, August 12, 1999 1:03 PM
REPLACING THE DC
ADAPTER’S FUSE
CD CARE TIPS
Even though a CD is very durable, you
should handle it with care.
If the CD player stops operating,
check the fuse in the DC adapter’s
cigarette-lighter plug. If it has blown,
follow these steps to replace it with a
3-amp, 5 × 20 mm, fast-acting fuse
such as Cat. No. 270-1054 (not sup-
plied).
• Keep the CD inside the CD player
or in its protective case or sleeve
when you are not playing it.
• Handle a CD by its edges to avoid
fingerprints that can prevent the
CD player’s laser beam from
accurately reading the CD. Your
local RadioShack store sells a
suitable CD cleaner kit.
Caution: Using a fuse that does not
meet these ratings can damage your
CD player or the vehicle’s electrical
system.
• Do not write on either side of the
CD, particularly the non-label
side. (Signals are read from the
non-label side.)
1. Carefully unscrew the tip of the
cigarette-lighter plug.
• Keep the CD dry. A water drop
can act as a lens and affect the
laser beam’s focus.
• Never use chemicals such as
record cleaning sprays, anti-static
sprays or fluids, benzene or thin-
ner to clean CDs. These chemi-
cals will permanently damage the
plastic surface of the CD.
2. Remove the old fuse and replace
it with the new fuse.
3. Screw the cigarette-lighter plug’s
tip back onto the body.
• If a CD skips when you try to
play it, the CD might be
scratched.
Your
local
Ra-
dioShack store sells a Scratch ’n
Fix kit (Cat. No. 42-127) that
might stop the skip. Also see
“Troubleshooting” on Page 19.
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42-5075.fm Page 22 Thursday, August 12, 1999 1:03 PM
SPECIFICATIONS
AUDIO
Frequency Response (±3 dB) ........................................................... 20–20,000 Hz
Dynamic Range ............................................................................................. 80 dB
Signal-to-Noise Ratio ..................................................................................... 80 dB
Harmonic Distortion at 1 kHz ........................................................................ 0.07%
Separation at 1 kHz ....................................................................................... 55 dB
Wow/Flutter .................................................................................... Not Measurable
Earphones Output (10% THD at 32 ohm) ......................................... 7 mW + 7 mW
Line Output ..................................................................................................... 0.6 V
SIGNAL FORMAT
Sampling Frequency ................................................................................. 44.1 kHz
Oversampling .............................................................................................. 8 Times
Quantization Number ............................................................ 16-Bit Linear/Channel
Transmission Bit Rate ............................................................... 4.3218 Mb/Second
Signal-Processing Rate .......................................................................... 352.8 kHz
PICK-UP
Tracking System ....................................................... 3-Beam Tracking Servo Type
Object Lens Drive System ......................................... 2-Dimensional Parallel Drive
Optical Source ....................................................................... Semiconductor Laser
Wavelength .................................................................................................. 780 nm
GENERAL
Power Requirements .................................................... DC 3V; Two AA Alkaline or
Rechargeable Nickel-Cadmium Batteries (not supplied),
DC Adapter (supplied)
AC Adapter such as 273-1664 (not supplied),
Power Consumption .......................................................................................... 8 W
2
Battery Life (EIAJ Method) ................................................. 7 Hours (with DAS off)
Dimensions (HWD) ........................... 11/8 × 51/16 × 53/8 Inches (32 × 129 × 137 mm)
Weight (without batteries) ................................................................. 9.5 oz (270 g)
Included Accessories .................................. Y-Cable, DC Adapter, CD-to-Cassette
Adapter, Carrying Case (CD-3690 only)
Specifications are typical; individual units might vary. Specifications are subject to
change and improvement without notice.
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42-5075.fm Page 23 Thursday, August 12, 1999 1:03 PM
NOTES
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42-5075.fm Page 24 Thursday, August 12, 1999 1:03 PM
Limited One-Year Warranty
This product is warranted by RadioShack against manufacturing defects in material and workmanship under
normal use for one (1) year 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 FIT-
NESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE DURATION OF THE WRIT-
TEN LIMITED WARRANTIES CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL
HAVE NO LIABILITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH
RESPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PER-
FORMANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, INCLUDING,
BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSS OF TIME, DATA,
PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, EVEN IF RadioShack HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Some states do not allow the limitations on how long an implied warranty lasts or the exclusion of incidental 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, unless 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 property 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 re-
mainder 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, alter-
ation, 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 adjust-
ment 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
9A7
Printed in Thailand
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