Optimus 12-2110 User manual

Cat. No. 12-2110
OWNER’S MANUAL
AM/FM Stereo Cassette
Please read before using this equipment.
with Detachable-Face Security
12-2110.fm Page 1 Wednesday, July 14, 1999 11:19 AM

2
FEATURES
© 1996 Tandy Corporation.
All Rights Reserved.
RadioShack is a trademark used by Tandy Corporation.
Optimus is a registered trademark used by Tandy Corporation.
Your Optimus AM/FM Stereo Cas-
sette with Detachable-Face Security
has many practical, easy-to-use fea-
tures, and you can install it in almost
any vehicle. The stereo’s anti-theft
control panel lets you quickly remove
and store it, making the stereo inop-
erative.
The auto-stop cassette deck, memo-
ry tuning, and seek and scan tuning
all help make your stereo’s operation
simple and quick so you can drive
safely.
Caution: Use common sense. Do
not change your stereo’s operation in
heavy traffic or during hazardous
driving conditions.
This stereo’s features include:
Anti-Theft Control Panel — lets
you quickly remove and store the ste-
reo’s control panel in the supplied
carry case. This discourages theft
because the stereo cannot operate
without the control panel.
Auto-Stop Cassette Deck — stops
the tape when it reaches the end, to
reduce wear on your tape and the
cassette deck.
Lockin
g
Fast-Forward — lets you
quickly move the tape to the end
without holding down the button.
Advanced FM Optimizer Circuitr
y
— automatically adjusts the tuner’s
stereo separation and high-frequen-
cy response to give you the best pos-
sible sound, regardless of the signal
level.
Stereo/Mono Control — lets you
select FM reception in stereo on
strong stations or monaural on weak
stations.
Li
g
hted Liquid Cr
y
stal Displa
y
with Clock — lets you easily see the
clock/radio/cassette deck’s current
functions.
BND Button — lets you select differ-
ent memory groups in the AM or FM
band with the push of a button.
Scan Tunin
g
— searches forward or
backward to the next strong station in
the selected band.
Manual/Automatic Memor
y
Pro-
g
rammin
g
— lets you manually or
automatically store 12 AM and 18 FM
stations into memory so you can
quickly tune to those stations.
Memor
y
Scan Tunin
g
— scans all
stations in a memory group, playing
for 5 seconds on each station.
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3
Bass, Treble, and Balance Con-
trols — let you adjust high and low
sounds and the balance between the
left and right speakers, so you can
tailor the sound to suit your prefer-
ences.
Digitally Synthesized Circuitry —
gives you precise tuning and drift-
free reception.
Built-in Noise Suppression Choke
—reduces the noise caused by
your vehicle’s electrical system.
We recommend you record your ste-
reo’s serial number here. The num-
ber is on the top of the stereo.
Serial Number: ________________
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4
CONTENTS
Installation ....................................................................................................... 5
Before You Begin the Installation ............................................................... 5
Preparing the Mounting Area ............................................................... 5
Routing Speaker Wire .......................................................................... 5
Making the Connections............................................................................ 6
Using an Adapter Harness ................................................................... 6
Connecting Ground, Power, and Optional Components ...................... 7
Testing the Power Connections ........................................................... 8
Connecting Speakers ........................................................................... 8
Connecting the Antenna ...................................................................... 9
Testing the Connections ....................................................................... 9
Mounting the Stereo.................................................................................. 10
Removing the Stereo from the Dash .........................................................11
Usin
g
the Control Panel ............................................................................... 12
Installing the Control Panel ....................................................................... 12
Removing the Control Panel ..................................................................... 12
Basic Operation ............................................................................................ 13
Adjusting the Controls .............................................................................. 13
Setting the Clock ...................................................................................... 14
Usin
g
the Radio ............................................................................................. 15
Playing the Radio ..................................................................................... 15
Memory Tuning ......................................................................................... 15
Automatically Storing Stations ........................................................... 16
Manually Storing Stations .................................................................. 16
Selecting a Stored Station ................................................................. 17
Scanning Stored Stations .................................................................. 17
Usin
g
the Cassette Pla
y
er ............................................................................ 18
Playing a Cassette .................................................................................... 18
Fast-Forward and Rewind .................................................................. 18
Care and Maintenance .................................................................................. 19
The FCC Wants You to Know ...................................................................19
Cleaning the Tape-Handling Parts............................................................ 20
Restoring Tape Tension and Sound Quality ............................................. 20
Replacing Fuses ....................................................................................... 20
Specifications ................................................................................................ 21
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5
INSTALLATION
BEFORE YOU BEGIN
THE INSTALLATION
Before you install your stereo, read
all the instructions in this owner’s
manual. You should be able to an-
swer all of these questions about
your vehicle’s electrical and sound
systems:
• Which terminal in my vehicle’s
fuse box is for accessories?
• How do I connect a wire to the
fuse box?
• Which of the stereo’s wires is
the power wire?
• Which stereo wires are speaker
outputs?
Also, be aware that installation in
your vehicle might require cutting or
modifying your vehicle.
Before you mount the stereo, test the
connections by temporarily connect-
ing the power wires, speakers, and
antenna as described in “Making the
Connections” on Page 6. If you plan
to use an adapter harness to connect
the stereo, see “Using an Adapter
Harness” in that section.
Preparing the Mounting
Area
Before you mount the stereo, read
through this “Installation” section to
make sure you have all the neces-
sary materials. Then confirm that the
stereo fits your vehicle’s mounting
area.
Caution:
Be careful to avoid obstruc-
tions behind the mounting surface.
Notes:
• This autosound stereo system is
a DIN-E size unit that requires a
21/16-inch (53 mm) high by 73/16-
inch (182 mm) wide by 63/4-inch
(171 mm) deep mounting area.
• If the mounting area is too large,
you might be able to mount the
stereo with an in-dash installa-
tion kit, available at your local
RadioShack store. Follow the
installation kit’s instructions to
mount the stereo.
Routing Speaker Wire
If you install speakers, avoid routing
the speaker wires near moving parts
or sharp edges. You can usually
route them along the wiring channel
beneath the vehicle’s door facings by
carefully removing the molding that
holds the carpet in place. After you
route speaker wire, replace the mold-
ing.
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6
MAKING THE
CONNECTIONS
The supplied 8-wire harness with 14-
pin connector includes all the lead
wires you need to connect the stereo
to ground, power, optional compo-
nents, and speakers.
Important: Do not cut these wires. If
you cut any wire, you cannot obtain a
refund or exchange on this product.
RadioShack will provide warranty
service if you cut a wire and find the
product is defective.
You might need additional wire, de-
pending on your individual auto-
sound system, to complete the
connections. Your local RadioShack
store carries a full line of wire and
wiring accessories.
Cautions:
• For added safety and to protect
your stereo, disconnect the
cable from your vehicle battery’s
negative (–) terminal before you
begin.
You
must
connect the ground, prima-
ry, and memory backup wires first,
then make all other connections (as
described in the following sections)
before you plug the 8-wire harness
into the stereo. If you do not make
connections in the order shown, you
could damage the stereo if any wire
connections are made incorrectly.
Note: The wire harness has the fol-
lowing labels.
Using an Adapter Harness
If you are replacing an existing stereo
or if your vehicle has been factory-
wired for autosound components,
you might be able to use an adapter
harness to connect the power and
speakers. Your local RadioShack
store sells adapter harnesses for
most vehicles.
Follow the directions that come with
the adapter harness to connect pow-
er and the speakers.
SWITCHED
POWER LEAD
500 mA MAX
(EMPTY)
CLOCK MEMORY (EMPTY)
POWER LEAD GROUND (–)
(EMPTY) (EMPTY)
(EMPTY) (EMPTY)
FRONT RIGHT (+) FRONT RIGHT (–)
FRONT LEFT (+) FRONT LEFT (–)
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7
1. Make sure you disconnect the
cable from your vehicle battery’s
negative (–) terminal.
2. Connect the black ground wire
to a chassis ground, such as a
metal screw attached to a metal
part of the vehicle’s frame. Be
sure that the screw is not insu-
lated from the chassis by a plas-
tic part.
3. Connect the red power wire
(with in-line fuse holder) to a
point in your vehicle’s fuse block
that has power only when you
turn the vehicle’s key to either
the accessory (ACC) or START
position.
This connection turns on and
powers the stereo when you turn
on the ignition or turn the key to
ACC, and turns off the stereo
when you turn off the ignition.
This prevents your vehicle’s bat-
tery from being drained if you
leave the stereo on when you
turn off the ignition.
4. Connect the yellow memory wire
(with in-line fuse holder) to your
vehicle battery’s positive (+) ter-
minal or to a point in your vehi-
cle’s fuse block that provides a
continuous source of 12 volts.
This connection provides contin-
uous power for the stereo’s
memory when the ignition is
turned off.
5. Cut the loop at the end of the
blue-white wire, strip about 1/2-
inch of insulation from the end,
and connect it to any optional
components, designed to run
from a switched source, that you
Connecting Ground, Power, and Optional Components
Follow these steps to connect the wire harness to ground, primary and memory
backup power, and optional components.
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8
want to turn on and off when you
turn the stereo on and off (such
as an equalizer/booster or a
power antenna).
This wire does not provide
power to the components. It sim-
ply turns them on or off. If you do
not use this wire, secure it with a
wire tie and do not let it touch
metal.
Testing the Power
Connections
Temporarily connect:
• The 14-pin connector into the
stereo’s 14-pin wiring socket
• Your vehicle battery’s negative
(–) cable
Then turn on your vehicle’s ignition.
Verify that everything works properly.
(The stereo works properly when the
display lights and the time display ap-
pears after about 5 seconds.)
Caution: If the display lights but the
time display does not appear, the
power and ground connections might
be reversed.
If the stereo does not work,
immedi-
ately unplug the 14-pin connector
and your vehicle battery’s nega-
tive (
–
) cable . Recheck your con-
nections.
If the stereo works properly, discon-
nect:
• The 14-pin connector from the
stereo’s 14-pin wiring socket
• The cable from your vehicle bat-
tery’s negative (–) terminal
Then proceed with the installation.
Connecting Speakers
You can connect one pair of speak-
ers to the stereo.
Cautions:
• Be sure your speakers can han-
dle 8 watts of power (4 watts per
channel). Each speaker must
have an impedance of at least 4
ohms. Your local RadioShack
store carries a full line of speak-
ers.
• You must connect a separate
wire to each speaker terminal as
described. Do not use a com-
mon wire or chassis ground for
any speaker connection.
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9
Follow these steps to connect the
wire harness to the speakers.
1. Connect the gray wire to the
right speaker’s positive termi-
nal. This terminal is usually
marked with a plus (+) sign or
red mark.
2. Connect the gray/black wire to
the right speaker’s negative ter-
minal. This terminal might be
marked with a minus (–) sign or
it might not be marked at all.
3. Connect the white wire to the left
speaker’s positive terminal.
4. Connect the white/black wire to
the left speaker’s negative termi-
nal.
Connecting the Antenna
Connect the vehicle’s antenna cable
to the stereo’s large, black antenna
jack.
Testing the Connections
Caution: Make sure you have se-
curely made all connections before
continuing with the installation.
Plug the 14-pin connector into the
14-pin wiring socket, then reconnect
the cable to the vehicle battery’s neg-
ative terminal.
Turn on your vehicle’s ignition and
test the stereo.
If the stereo does not work,
turn off
your vehicle’s ignition, then imme-
diately disconnect the 14-pin con-
nector from the stereo’s 14-pin
wiring socket, and the cable from
your vehicle battery’s negative (
–
)
terminal.
Then recheck your con-
nections.
After you verify that everything
works, make sure the connections
are correctly marked or identified.
Then follow the instructions in
“Mounting the Stereo” on Page 10.
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10
MOUNTING THE
STEREO
Be sure you test all connections first,
then follow these steps to mount the
stereo.
1. Disconnect the cable from the
vehicle battery’s negative (–)
terminal.
2. Disconnect the wire harness and
the antenna.
3. Remove the control panel (see
“Removing the Control Panel”
on Page 12).
4. Insert the supplied key into the
slot as shown, and slide the
sleeve off of the stereo.
5. Insert the sleeve into the dash.
Then secure the sleeve in the
dash by bending out the appro-
priate tabs with a screwdriver.
Bend out all the side tabs.
6. Reconnect the wire harness and
the antenna.
7. Slide the stereo into the sleeve
until it locks into place.
8. To further secure the stereo, use
the supplied hardware to attach
one end of the supplied metal
strap to the bolt on the back of
the stereo.
9. If necessary, bend the metal
strap to fit your vehicle’s mount-
ing area. Then attach the other
end of the strap to a solid metal
part of the vehicle. This strap
also helps ensure proper electri-
cal grounding of the stereo.
10. Reconnect the cable to the vehi-
cle battery’s negative (–) termi-
nal.
11. Replace the control panel (see
“Installing the Control Panel” on
Page 12).
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11
REMOVING THE
STEREO FROM THE
DASH
If you ever want to remove the stereo
from the dash, follow these steps.
1. Disconnect the cable from the
vehicle battery’s negative (–)
terminal.
2. If necessary, remove the metal
strap attached to the back of the
stereo.
3. Remove the control panel.
4. Insert the supplied key into the
slot as shown, and slide the ste-
reo out of the dash while holding
the sleeve.
5. Remove the key from the slot.
6. Disconnect the wire harness and
the antenna.
7. Reconnect the cable to the vehi-
cle battery’s negative (–) termi-
nal.
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12
USING THE CONTROL PANEL
The stereo’s anti-theft control panel
must be in place for the stereo to op-
erate. When you remove it, the ste-
reo does not work. This is a simple,
but effective security measure.
Notes:
• The display turns off and the
time disappears when the con-
trol panel is removed. The red
indicator flashes.
• Any stored stations remain in
memory when the control panel
is removed.
INSTALLING THE
CONTROL PANEL
Caution: Avoid pushing on the dis-
play or pressing any buttons while in-
stalling the control panel.
1. Insert the right edge of the con-
trol panel into the right edge of
the recess. Make sure the tabs
in the recess fill the slots in the
edge of the control panel.
2. Gently push the left edge of the
control panel into the recess
until you hear a click.
REMOVING THE
CONTROL PANEL
1. Press REL (release).
2. Grasp the control panel on the
left side and pull it out to remove
it.
3. Press the side of the supplied
carry case to open it, then store
the control panel in it.
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13
ADJUSTING THE
CONTROLS
When you listen to your stereo, you
can adjust the following controls to
suit your listening preferences.
ON/VOL — turn clockwise until it
clicks to turn on the stereo. Turn ON/
VOL clockwise to increase or coun-
terclockwise to decrease the volume.
To turn off the stereo, turn ON/VOL
counterclockwise until it clicks.
Warning: To protect your hearing,
do not listen at high volume levels.
Slowly increase the volume to a com-
fortable listening level.
BAL — rotate to adjust the balance
between the right and left speakers.
BASS — rotate to increase or de-
crease low sounds.
TREBLE — rotate to increase or de-
crease high sounds.
AMS — press and hold to automati-
cally scan and store the next six
strong stations in the selected band
(see “Memory Tuning” on Page 15).
BND — press to select the desired
band and memory group.
TUN ⁄or TUN Ÿ— repeatedly press
to tune down or up a selected band,
or press and hold to search back-
ward or forward to the next strong
station on the selected band (see
“Using the Radio” on Page 15).
SCN — press to automatically tune to
each strong station for about 5 sec-
onds (see “Using the Radio” on Page
15).
F/C — press to display the current
frequency or the clock.
ST/MO — press to select stereo or
mono reception.
LOC — press to improve reception of
a strong station.
BASIC OPERATION
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14
SETTING THE CLOCK
1. If necessary, press F/C (fre-
quency/clock) until the clock dis-
play appears.
Note: The display normally
shows the clock.
2. Press and hold down F/C, then
repeatedly press TUN ⁄until the
display shows the correct hour.
(To quickly advance the hour,
press and hold down TUN ⁄).
3. Continue holding down F/C, then
repeatedly press TUN Ÿuntil the
display shows the correct
minute. (To quickly advance the
minute, press and hold down
TUN
Ÿ).
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15
USING THE RADIO
PLAYING THE RADIO
1. If the stereo is off, turn ON/VOL
clockwise until it clicks to turn it
on. The radio automatically
tunes to the last station
selected.
2. Press
BND to select the desired
band. AM1 or AM2 appears on
the display when an AM band is
selected. FM1, FM2, or FM3
appears when an FM band is
selected.
3. Tune to the desired station in
one of the following ways.
Manual Tunin
g
:Repeatedly
press
TUN Ÿor TUN ⁄to tune
up or down the selected band.
Seek Tunin
g
:Press and hold
TUN Ÿor TUN ⁄to search back-
ward or forward to the next
strong station in the selected
band.
Scan Tunin
g
: Press SCN to
automatically tune to each
strong station for about 5 sec-
onds. Press SCN again to stop
scanning.
4. Adjust ON/VOL, BASS, TREBLE,
and BAL as desired.
Notes:
•ST appears on the display when
an FM broadcast is received in
stereo.
• To improve reception of a weak
FM station, press ST/MO so MO
appears on the display. The
sound is no longer in stereo, but
reception should improve.
• To improve reception of strong
stations, press LOC (local/dis-
tant). LOC appears on the dis-
play.
• If the stereo does not find a
strong station when scanning, it
searches the band again until it
finds one or until you press AMS,
TUN Ÿ, or TUN ⁄
• To temporarily display the fre-
quency, press F/C. The display
shows the frequency for 5 sec-
onds, then returns to the clock
display.
MEMORY TUNING
You can store up to 12 AM and 18
FM stations in memory. Each memo-
ry group (AM1, AM2, FM1, FM2, and
FM3) holds up to six stations.
You can let the stereo search for the
six strongest stations in a band and
automatically store these into a
memory group, or you can manually
store stations into a memory group.
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16
Automatically Storing
Stations
1. If the stereo is off, turn ON/VOL
clockwise until it clicks to turn it
on.
2. Press BND until the stereo dis-
plays the band and memory
group where you want to store a
group of stations. For example,
to store the first group of AM sta-
tions into AM1, press BND until
AM1 appears.
3. Press and hold down AMS (auto-
matic memory scan) for at least
2 seconds. The stereo beeps,
scans the selected band, and
automatically stores the first six
stations it finds.
The band and memory group,
frequency, memory location
number, and CH appear on the
display.
Manually Storing Stations
1. If the stereo is off, turn ON/VOL
clockwise until it clicks to turn it
on.
2. Press BND until the stereo dis-
plays the band and memory
group where you want to store a
station. For example, to store
AM stations into AM1, press
BND until AM1 appears.
3. Use any of the tuning methods
described in Step 3 of “Playing
the Radio” on Page 15 to tune to
the station you want to store.
4. Press and hold down the
desired memory location button
until the stereo beeps once. The
volume briefly mutes, then
returns to normal. The station is
now stored in that memory loca-
tion.
The band and memory group,
the frequency, the memory loca-
tion number, and CH appear on
the display.
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17
Selecting a Stored Station
To select a stored station, press BND
to select the correct memory group.
Then briefly press the desired mem-
ory location button.
Caution: Do not hold down the mem-
ory location button. This stores the
currently tuned station into that loca-
tion.
Scanning Stored Stations
The stereo’s automatic memory scan
(AMS) feature scans all stored sta-
tions in the currently selected memo-
ry group, pausing for 5 seconds at
each station.
1. Press BND until the stereo dis-
plays the memory group you
want to scan.
2. To start automatic memory scan,
briefly press AMS.
As the stereo scans each mem-
ory location in the memory
group,
CH and the frequency are
displayed, and the memory loca-
tion number flashes on the dis-
play.
Caution: Do not hold down
AMS. This causes the stereo to
automatically seek and store
stations into the selected mem-
ory group.
3. To stop scanning when the ste-
reo pauses at a station you want
to listen to, briefly press the sta-
tion’s memory location button or
AMS.
Note: If you do not press a
memory location button or AMS,
the stereo scans the memory
group repeatedly.
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18
USING THE CASSETTE PLAYER
PLAYING A CASSETTE
Caution: Avoid using C-120 cas-
sette tapes. They are very thin and
can easily become tangled in the
tape-handling parts.
Follow these steps to play a cassette
tape.
1. Take up any slack by turning the
cassette’s hub with your finger
or a pencil. (Avoid touching the
tape.)
2. If the stereo is off, turn ON/VOL
clockwise until it clicks to turn it
on.
3. Insert the tape into the cassette
compartment with its open edge
to the right and the desired side
facing up. The tape begins to
play.
4. Adjust ON/VOL, BASS, TREBLE,
and BAL as desired.
5. Press all the way in to stop
the tape and eject it. The radio
plays.
Caution: When a tape reaches the
end, the cassette player automatical-
ly stops and the radio plays, but the
cassette player does not eject the
tape. We recommend you press
as soon as you finish playing a
tape or before you leave your vehi-
cle, to release the tape from the tape-
handling parts. This reduces the pos-
sibility of a tape being inadvertently
tangled or damaged.
Fast-Forward and Rewind
To fast-forward the current side,
press halfway in until it locks. The
tape quickly winds. To stop fast-for-
ward, gently press again.To re-
wind a tape, simply eject the tape,
turn it over, then fast-forward the oth-
er side.
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19
CARE AND MAINTENANCE
Your Optimus AM/FM Stereo Cas-
sette with Detachable-Face Security
is an example of superior design and
craftsmanship. The following sug-
gestions will help you care for the
stereo so you can enjoy it for years.
Keep the stereo dry. If
it gets wet, wipe it dry
immediately. Liquids
might contain miner-
als that can corrode
the electronic circuits.
Handle the stereo
gently and carefully.
Dropping it can dam-
age circuit boards and
cases and can cause
the stereo to work im-
properly.
Keep the stereo away
from dust and dirt,
which can cause pre-
mature wear of parts.
Wipe the stereo with a
damp cloth occasion-
ally to keep it looking
new. Do not use
harsh chemicals,
cleaning solvents, or
strong detergents to
clean the stereo.
Modifying or tampering with the ste-
reo’s internal components can cause
a malfunction and might invalidate
your stereo’s warranty and void your
FCC authorization to operate it. If
your stereo is not performing as it
should, take it to your local Ra-
dioShack store for assistance.
THE FCC WANTS YOU
TO KNOW
Your stereo might cause TV or radio
interference even when it is operat-
ing properly. To determine whether
your stereo is causing the interfer-
ence, turn off your stereo. If the inter-
ference goes away, your stereo is
causing the interference. Try to elim-
inate the interference by:
• Moving your stereo away from
the receiver
• Contacting your local
RadioShack store for help
If you cannot eliminate the interfer-
ence, the FCC requires that you stop
using your stereo.
CLEANER
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20
CLEANING THE TAPE-
HANDLING PARTS
Clean the tape head after every 20
hours of playing time. Insert a special
head-cleaning cassette (such as Cat.
No. 44-1202), and let it run for a few
minutes to clean the tape head.
RESTORING TAPE
TENSION AND SOUND
QUALITY
After you play a cassette tape a few
times, it might become tightly wound
on the reels. This can cause play-
back sound quality to deteriorate.
To restore the sound quality, fast-for-
ward the tape from the beginning to
the end of one side, then turn it over
and completely fast-forward it. Then
loosen the tape reels by gently tap-
ping each side of the cassette’s outer
shell on a flat surface.
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.
REPLACING FUSES
If the stereo does not operate, you
might need to replace the red power
wire’s fuse with the supplied spare
3.0-amp fuse. If the clock resets or
stored stations are lost when the igni-
tion is off, you might need to replace
the yellow memory wire’s fuse with
the supplied spare 0.5 amp fuse.
Check both fuses (as well as the ap-
propriate fuses in your vehicle).
Warning: Before you begin, turn off
the stereo and your vehicle’s ignition.
Then disconnect the cable from the
vehicle battery’s negative (–) termi-
nal.
1. Pull the latches on each of the
fuse holders apart until the fuse
holders open.
2. If either fuse is blown, replace it.
Use only standard 11/4-inch
fuses with the proper rating.
Caution: The supplied spare
fuses have the proper ratings.
Make sure you replace a fuse
only with another fuse of the
same rating.
3. Reassemble both fuse holders
by snapping them together.
4. Reconnect the cable to the vehi-
cle battery’s negative (–) termi-
nal.
12-2110.fm Page 20 Wednesday, July 14, 1999 11:19 AM