Cat. No. 31-3041
Audio/Video
Receiver
STAV-3670
VOLUME
STAV-3670 AUDIO/VIDEO RECEIVER
PHONO
TUNER
LD/DVD
CD
STAND BY
POWER
TAPE 2
MONITOR
VCR
TAPE 1
SUPER
BASS
SFC
MODE
DOLBY
PRO LOGIC
MIN
MAX
DOLBY SURROUND
MEMORY
FM MONO
CLASS
STATION
P R O
L O G I C
TREBLE
BALANCE
BASS
4-CHANNEL
EQUAL POWER
OUTPUT
PHONES
SPEAKERS
A
B
TUNING
FM/AM
OSR
L
R
Owner’s Manual
Please read before using this equipment.
IMPORTANT SAFETY INSTRUCTIONS
This receiver is made and tested to meet exacting
safety standards. It meets both UL and FCC require-
ments
Careful attention is devoted to quality standards in the manufacture of your receiver, and safety is
a major factor in its design. However, safety is also your responsibility.
This section lists important information that will help you properly use and enjoy your receiver and
accessories. Read all the included safety and operating instructions before using your receiver. Fol-
low them closely, and retain them for future reference.
Heed Warnings — Follow all warnings on the product and in the operating instructions.
CAUTION
Cleaning — Unplug this product from the wall outlet before cleaning. Use only a damp cloth for
cleaning. Do not use liquid or aerosol cleaners.
RISK OF ELECTRIC SHOCK.
!
DO NOT OPEN.
Attachments — Do not use attachments/accessories not recommended by the product manufac-
turer, as they might create a hazard.
CAUTION
: TO REDUCE THE RISK OF
Water and Moisture — Do not use this product near water (for example, near a bathtub, washbowl,
kitchen sink, or laundry tub; in a wet basement; or near a swimming pool).
ELECTRIC SHOCK, DO NOT REMOVE
COVER OR BACK. NO USER-SERVICE-
ABLE PARTS INSIDE. REFER SERVICING
TO QUALIFIED PERSONNEL.
Accessories — Do not place this product on an unstable cart, stand, tripod, bracket, or table. The
product may fall, causing serious injury to a child or adult, and serious damage to the product. Use
only with a cart, stand, tripod, bracket, or table recommended by the manufacturer or sold with the
product. Follow the manufacturer's instructions for mounting, and use a recommended mounting
accessory.
Carts — Move the product on a cart carefully. Quick stops, excessive force, and
uneven surfaces may cause the product/cart to overturn.
This symbol is intended to alert you to the
presence of uninsulated dangerous voltage
within the system’s enclosure that might be
of sufficient magnitude to constitute a risk
of electric shock. Do not open the system’s
case.
Ventilation — Slots and openings in the cabinet provide ventilation, ensure reli-
able operation, and protect from overheating. Do not block or cover these open-
ings, and do not place the product on a bed, sofa, rug, or other similar surface. Do
not place the product in a built-in bookcase or rack unless it provides proper ven-
tilation as specified by the manufacturer.
Power Sources — Operate this product using only the power source indicated on its marking label.
If you are not sure of your home's power type, consult your product dealer or local power company.
This symbol is intended to inform you that
important operating and maintenance in-
!
Polarization — This product is equipped with a polarized AC line plug (a plug having one blade
wider than the other). This plug will fit in the power outlet only one way. This is a safety feature. If
you cannot insert the plug fully into the outlet, try reversing the plug. If the plug still doesn't fit, con-
tact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the polar-
ized plug. If you need an extension, use a polarized cord.
structions are included in the literature ac-
companying this system.
WARNING: TO REDUCE THE RISK OF
FIRE OR ELECTRIC SHOCK, DO NOT EX-
POSE THIS APPLIANCE TO RAIN OR
MOISTURE.
Power-Cord Protection — Route power-supply cords so they are not likely to be walked on or
pinched by items placed on or against them, paying particular attention to cords at plugs, conve-
nience receptacles, and the point where they exit from the product.
Lightning — For added protection for this product during a lightning storm, or when it is left unat-
tended and unused for long periods of time, unplug it from the wall outlet and disconnect the anten-
na or cable system. This will prevent damage to the product due to lightning and power-line surges.
CAUTION
Overloading — Do not overload wall outlets, extension cords, or integral convenience receptacles,
as this can result in a risk of fire or electric shock.
Power Lines—Locate an outdoor antenna away from
power lines.
Objects and Liquids — Never push objects of any kind into this product through openings, as they
may touch dangerous voltage points or short out parts that could result in a fire or electric shock.
Never spill liquid of any kind on the product.
Nonuse Periods—Unplug the receiver’s power cord
when you will not use it for extended periods.
Outdoor Antenna Grounding—If an outside antenna
or cable system is connected to the receiver, ground
the antenna or cable system so as to provide some
protection against voltage surges and built-up static
charges. Article 810 of the National Electrical Code,
ANSI/NFPA 80, provides information about proper
grounding of the mast and supporting structure,
grounding of the lead-in wire to an antenna discharge
unit, size of grounding conductors, location of antenna-
discharge unit, connection to grounding electrodes,
and requirements for the grounding electrode. See the
example below.
Servicing — Do not attempt to service this product yourself, as opening or removing covers may
expose you to dangerous voltage or other hazards. Refer all servicing to qualified service person-
nel.
Damage Requiring Service — Unplug this product from the wall outlet and refer servicing to qual-
ified service personnel under the following conditions:
•
•
•
•
When the power-supply cord or plug is damaged.
If liquid has been spilled or objects have fallen into the product.
If the product has been exposed to rain or water.
If the product does not operate normally by following the operating instructions. Adjust only
those controls that are covered by the operating instructions, as an improper adjustment of
other controls may result in damage and will often require extensive work by a qualified techni-
cian to restore the product to normal operation.
Antenna
Lead-In
Wire
•
•
If the product has been dropped or damaged in any way.
When the product exhibits a distinct change in performance.
Ground Clamp
Replacement Parts — When replacement parts are required, be sure the service technician uses
replacement parts specified by the manufacturer or having the same characteristics as the original
part. Unauthorized substitutions may result in fire, electric shock, or other hazards.
Antenna
Discharge Unit
(NEC Section 810-20)
Electric
Service
Grounding Conductors
(NEC Section 810-21)
Safety Check — Upon completion of service or repairs to this product, ask the service technician
Equipment
to perform safety checks to determine that the product is in proper operating condition.
Grounding Clamps
Wall or Ceiling Mount — The product should be mounted to a wall or ceiling only as recommended
by the manufacturer.
Power Service Grounding
Electrode System
(NEC Article 250, Part H)
NEC -- National Electrical Code
Heat — The product should be situated away from heat sources such as radiators, heat registers,
stoves, or other products (including amplifiers) that produce heat.
3
Contents
Preparing Your Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Positioning Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Connecting Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Connecting Program Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Connecting the Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Using One Remote Control for More Than One Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Installing the Remote Control’s Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Using the AC Power Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Connecting to AC Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Tuning the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Using FM MONO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
BALANCE Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Muting the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Using Headphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Cassette Deck/VCR Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Using the VCR/TAPE 1 and TAPE 2 MONITOR Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Recording an Audio Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Dubbing a Cassette Tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Playing and Recording Video Tapes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Using Advanced Sound Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Sound Mode Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Using the Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Returning Controls to Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Care and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
The FCC Wants You to Know . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Index to Features by Control Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4
Preparing Your Receiver
Caution: Make all the necessary connections before you plug in or turn on the receiver.
Where you place your speakers (not supplied) can make a noticeable difference
in your system’s sound. The guidelines in this section will help you choose the
best locations. After you use your receiver for a while, you might want to try dif-
ferent locations for your speakers.
Positioning Speakers
a
L
R
Bass response depends largely on speaker location. For strong bass, place the
speakers in the corners of the room. If you want even stronger bass, place the
speakers directly on the floor. If the bass is too strong, move the speakers
slightly away from the corners of the room, or raise them 6 to 18 inches off the
floor. You can buy speaker stands at your local RadioShack store.
Halfway Point
Between Speakers
b
a = b
The distance between the speakers should be about the same as the distance
between the normal listening point and the point halfway between the speakers.
If you place the speakers too close together, you reduce the stereo separation.
If you place them too far apart, you reduce the bass effect and create a hole in
the middle of the sound.
Normal ListeningPoint
Most speakers have a tweeter dispersion angle of about 60 degrees. Ideally,
your listening position should be just inside the overlap area of the tweeter dis-
persion. You can angle the speakers toward you for better stereo effect.
• Surround speakers generally sound
best if you position them above ear
level.
• To avoid interference with the picture
on a nearby TV, use magnetically
shielded speaker systems. This is par-
ticularly important for the center
speaker since it is usually located
closest to the TV.
To position your speakers for surround sound, place the A or B front speakers at
the front of your listening area, and place the (rear) surround speakers behind
or to the sides of the listening point (see “Using Advanced Sound Options” on
Page 20). Also, place the center speaker above, below, or behind the TV.
Sound might not appear to coincide with the picture if you place it beside the TV.
TV
Front Left
Speaker
Front Right
Speaker
Center Speaker
Front
Listening
Area
Rear
Rear Left
Speaker
Rear Right
Speaker
5
Preparing Your Receiver
Connecting Speakers
Preparing the Speaker Wires
Speaker wire consists of two conductors (individual wires) encased in insulation
and is usually color-coded or marked with a ridge along one side so you can
identify each conductor. Use these markings as a guide to help you properly
connect the speakers to your receiver.
Follow these guidelines when you select
and connect speakers.
• Only connect speakers that are rated
at between 8 and 16 Ohms.
Follow these steps to prepare the speaker wires.
• Be sure you properly connect all
speakers.
Wire Strands
• Do not connect two pairs of speakers
to a single set of terminals (A or B) at
the same time. When you use two
pairs of speakers, connect one set to
Speakers A and one set to Speakers
B.
Speaker Wire
Wire Strands
• Realistic, Optimus, and other high-
quality speakers have color-coded
speaker terminals (red for positive po-
larity and black for negative polarity).
Use these color-coded terminals as a
guide to help you properly connect the
speakers to the receiver.
Conductor
1. Cut the speaker wires to the necessary length.
2. Separate the wires about 4 inches on each end.
• Use 16-gauge (or larger) speaker wire
for all speaker connections, and con-
sider possible speaker locations be-
fore you decide how much speaker
wire you need.
3
3. Using a wire stripper, carefully strip about /4 inch of insulation from the
end of each conductor.
4. Twist the end of each conductor to secure any loose wire strands.
6
Preparing Your Receiver
Right
Front Speakers B
Left
Right
Front Speakers A
Left
Center Speaker
R
R
L
L
A
B
A
B
AUDIO
IN
FRONT SPEAKERS
L
R
PRE OUT
L
R
SUB
WOOFER
CENTER
SPEAKER
REAR
SPEAKERS
Amplified
Subwoofer
Surround
Speakers
Right
Left
Connecting the A and B Speakers
Note: Be sure you connect the re-
ceiver’s right and left positive (+) and
negative (–) terminals to the speaker’s
corresponding right and left positive (+)
and negative (–) terminals.
Follow these steps to connect the right speaker to the receiver’s right FRONT
SPEAKERS A terminals.
1. Lift the receiver’s FRONT SPEAKERS A R (+) red lever and insert the ridged
or color-coded conductor’s end into the small hole. Pull down the lever to
secure the conductor.
2. Lift the receiver’s FRONT SPEAKERS A R (–) black lever and insert the other
conductor’s end into the small hole. Pull down the lever to secure the con-
ductor.
3. Connect the ridged or color-coded conductor’s loose end to the right
speaker’s positive (+) terminal.
4. Connect the remaining loose conductor to the right speaker’s negative (–)
terminal.
Repeat Steps 1–4 to connect the left speaker to the receiver’s FRONT SPEAKERS
A left terminals.
Repeat this entire process to connect a second pair of speakers to the FRONT
SPEAKERS B terminals.
7
Preparing Your Receiver
Connecting Surround-Sound Speakers
You can connect a pair of speakers to the receiver for surround-sound pro-
grams. Follow the steps in “Connecting the A and B Speakers” to connect the
speakers to the REAR SPEAKERS terminals.
Connecting the Center Speaker
The center speaker gives additional ambience to surround sound. Follow the
steps in “Connecting the A and B Speakers” to connect the center speaker to
the CENTER SPEAKER terminals.
Connecting a Subwoofer Amplifier
Your receiver includes a line-level subwoofer output. Connecting a subwoofer to
your system dramatically extends bass response for incredible richness and
depth. When you listen to surround-sound programs, a subwoofer enhances
your home theater experience by realistically recreating the rumble of an earth-
quake, the bone-jarring percussion of a cannon, and more. To use the sub-
woofer output, simply connect SUBWOOFER to an amplified subwoofer’s line-
level input or to an amplifier to which you have connected a subwoofer.
RadioShack stores sell a variety of suitable subwoofers and amplifiers.
8
Preparing Your Receiver
You can connect up to five external program sources to your receiver.
Connecting Program Sources
OUT
IN
IN
TO MONITOR TV
VIDEO OUT
Note: Use shielded audio cables with
phono connectors for all audio connec-
tions.
VIDEO
PLAY
IN
REC
OUT
IN
IN
IN
L
L
L
OUT
R
R
R
TAPE2
MONITOR
SIGNAL
GND
VCR/
TAPE 1
LD/
DVD
PHONO
CD
CONTROL
LINE
LINE
PLAY
REC
REC
PLAY
REC
REC
OUT PUT
L
L
L
R
R
PLAY
PLAY
R
INPUT OUTPUT
INPUT OUTPUT
CD
Turntable
Cassette Deck
Cassette Deck
CD Player
Connecting a Turntable
Connect a turntable with a magnetic cartridge only. Some older turntables use a
ceramic-type cartridge that does not work with this system.
L
R
Connect the turntable’s left and right cables to the receiver’s (left) and (right)
PHONO
SIGNAL
jacks. Then connect the turntable’s ground wire to the receiver’s
terminal.
GND
Connecting a CD Player
To connect a CD player to the receiver, connect the CD player’s left and right
L
R CD IN
jacks.
output jacks to the receiver’s and
Connecting Cassette Decks
VCR/TAPE 1
TAPE 2 MONITOR
jacks.
You can connect cassette decks to the
and the
Note: If you place the cassette deck di-
rectly above, below, or to the left of the
receiver, the receiver could interfere with
the cassette deck’s operation. If possi-
ble, position the cassette deck to the
right of the receiver or locate it away
from the receiver.
VCR/TAPE 1 IN
TAPE 2
(audio) or
Connect the cassette deck’s output jacks to the
MONITOR PLAY
VCR/TAPE
jacks, and connect the cassette deck’s input jacks to the
TAPE 2 MONITOR REC
jacks.
1 OUT
(audio) or
LD/DVD IN
You can connect a third cassette deck (for playback only) to the
(audio) jacks.
9
Preparing Your Receiver
OUT
OUT
IN
IN
IN
IN
TO MONITOR TV
VIDEO OUT
VIDEO
PLAY
IN
REC
IN
L
L
OUT
R
R
TAPE2
MONITOR
VCR/
TAPE 1
LD/
DVD
CD
CONTROL
PHONO
SIGNAL
GND
VIDEO
AUDIO
PLAY
AUDIO
OUT
VIDEO
OUT
REC
VIDEO
IN
OUT
IN
L
L
R
R
REC
PLAY
INPUT OUTPUT
VCR
VCR
LD/DVD Player
TV Monitor
Connecting Video Sources
If you connect two video sources, such as VCRs, laser disc (LD) players, or dig-
ital video disc (DVD) players to your receiver, you can use the receiver to select
each video source. You can also use the receiver to easily record from these
video sources to the source connected to VCR/TAPE 1.
Note: If your VCR is monaural, use a Y-
adapter (available at your local Ra-
dioShack store) to connect the VCR’s
audio output to both the L and R audio in-
puts on the receiver.
Connect phono cables from each video source’s audio outputs to the receiver’s
VCR/TAPE 1 or LD/DVD IN (audio) jacks. Then connect phono cables from the
receiver’s VCR/TAPE 1 OUT (audio) jacks to the source’s audio input jacks.
Connect video cables from each video source’s video outputs to the receiver’s
VCR/TAPE 1 or LD/DVD VIDEO IN jacks. Then connect video cables from the
receiver’s VCR/TAPE 1 VIDEO OUT jack to the source’s video input.
Connecting a Video Monitor
The monitor (or TV with baseband video input) you connect to the VIDEO OUT ter-
minal can monitor any program you connect to the receiver’s VCR/TAPE 1 or LD/
DVD input jacks. Connect a video cable from the receiver’s VIDEO OUT TO MONI-
TOR TV jack to the monitor’s video input.
10
Preparing Your Receiver
In many areas, the supplied indoor AM loop and FM antennas provide satisfac-
tory reception.
Connecting the Antennas
AM Antennas
Assemble the supplied AM antenna’s base by swinging the base in the direction
of the arrow and inserting the antenna’s bottom tabs into the base’s slot. If the
receiver is in a rack or on a shelf and there is no room for the AM loop antenna,
use two screws (not supplied) to mount the base on the wall or another location
as shown.
AM LOOP ANTENNA
Attach the antenna wires to the
(right two terminals).
and (ground) terminals
Place the antenna on a flat surface and rotate it for the best AM reception.
Notes:
• Keep the AM loop antenna connected even when you use another indoor
antenna or an outdoor AM antenna.
• Ensure the antenna does not touch the receiver or other metal objects.
AM Loop Antenna
FM
UNBAL 75
AM
• Do not place the antenna near a CD player, a personal computer, or a TV
set.
LOOP ANTENNA
• If the wire between your AM loop antenna and receiver is too short, you
can add extra wire, available at your local RadioShack store.
ANTENNA
You can also use a RadioShack shortwave antenna kit (Cat. No. 278-758),
which makes an excellent outdoor AM antenna. Connect the outdoor AM
antenna wire to the receiver’s AM terminal, as shown.
Outdoor AM Antenna
FM
UNBAL 75
AM
LOOP ANTENNA
ANTENNA
FM Antennas
FM UNBAL 75
Connect the supplied FM antenna to the
extend it.
Ω terminal as shown, then
AM Loop Antenna
ILLUSTRATION STILL REQUIRED
For better FM reception, you can also use a rabbit-ear TV antenna (for indoor
use only). To connect the TV antenna to the receiver, you need a VHF/UHF/FM
splitter (not included). RadioShack stores carry a full line of quality antennas
and antenna connection accessories.
Note: For the best results, use 75-ohm
coaxial cable to connect an outdoor an-
tenna to the receiver.
11
Preparing Your Receiver
For the best radio reception, use an outdoor antenna. Follow these steps to
connect an outdoor FM antenna to the receiver using 75Ω coaxial cable.
Warning: To prevent injury, read and fol-
low all cautions and warnings that ac-
company the outdoor antenna.
Note: If your antenna has 300Ω twin-lead cable, consult your local RadioShack
store for the correct adapter.
1. Disconnect the supplied FM antenna from the receiver’s FM UNBAL 75Ω
terminal.
2. With a stripping tool, remove about 11/2 inches of the outdoor antenna
cable’s outer insulation to expose the cable’s shielding.
3. Fold back the shielding from the inner insulation.
4. Remove about 1 inch of the inner insulation from around the center wire.
Inner Insulation
Center Wire
Outer Insulation
Shielding
5. Pull the shielding to one side. Connect the center wire to the receiver’s FM
UNBAL 75Ω terminal. Twist the shielding to secure any loose wire strands,
and connect it to the FM UNBAL 75Ω terminal.
Caution: The cable’s shielding should
only touch the terminal.
Outdoor FM Antenna
FM
UNBAL 75
AM
LOOP ANTENNA
Center
Wire
Shielding
ANTENNA
Note: Grounding is not necessary for reception, but we recommend it for better
FM reception and to avoid damage from lightning when you use an outdoor FM
antenna. Use a separate piece of thick polyvinyl insulated wire to connect the
terminal to the building’s power service grounding electrode system.
Warning: Never connect a wire to a gas pipe for grounding since sparks might
ignite the gas.
12
Preparing Your Receiver
If you also have an Optimus professional series CD player, VCR, or cassette
Using One Remote Control
for More than One Unit
CONTROL IN
deck with the OSR mark ( ), you can connect its
jack to the
receiver so you can control all of your equipment with a single remote control.
You can also use the other component’s remote control by pointing it at the
receiver’s front panel.
Note: When you plug the cable into a
CONTROL IN
component’s
jack, that com-
1. Connect each component to the receiver as shown in “Connecting Pro-
gram Sources” on Page 9.
ponent’s remote sensor does not func-
tion.
Note: You must connect the audio cables between the receiver and the
other audio accessory to use your receiver’s remote control to control the
accessory.
CONTROL
CONTROL
IN
OUT
IN
OUT
2. Connect the cable supplied with the CD player, VCR, or cassette deck to
CONTROL OUT
CONTROL IN
jack and the other component’s
the receiver’s
jack.
3. When you want to control more than one other component using the
Other Component
with OSR Mark
Receiver
CONTROL OUT
CONTROL IN
and
receiver’s remote control, daisy-chain the
connections as shown.
To the CONTROL IN Jack
of Another Component
Having the OSR Mark
Remote
Control
The remote control uses two AA batteries (not included). For the longest battery
life, we recommend alkaline batteries (such as RadioShack Cat. No. 23-557).
Installing the
Remote Control’s Batteries
1. Press and slide open the battery compartment cover.
Cautions:
2. Place two fresh AA batteries in the compartment as indicated by the
polarity symbols (+ and –) marked in the compartment.
• Use only fresh batteries of the required
size and recommended type.
• Always remove old or weak batteries.
Batteries can leak chemicals that can
damage electronic circuits.
3. Replace the battery compartment cover.
Note: If the remote’s range is reduced,
replace the batteries immediately.
13
Preparing Your Receiver
Your receiver has an AC power outlet that you can use to power an electronic
device, such as a turntable, cassette deck, VCR, and so on. This switched out-
let turns on and off with the receiver and provides a maximum of 100 Watts.
Using the AC Power Outlet
Caution: Do not connect appliances with
high power consumption, such as a
heater, iron, monitor, or TV, to this AC
outlet. Doing so can cause a risk of over-
heating and fire, and could damage the
receiver.
R
L
A
B
R
L
CAUTION: DO NOT CONNECT TV SET OR MONITOR.
FRONT SPEAKERS
L
R
AC 120V 60HZ
SWITCHED
100W MAX
0.8A MAX
L
R
AC OUTLET
CENTER
SPEAKER
REAR
SPEAKERS
Before you plug in the receiver’s power cord, double check all other connec-
tions.
Connecting to AC Power
To power the receiver, plug the supplied power cord into a standard AC outlet.
The power cord’s plug is polarized and fits only one way.
Warning: To prevent electric shock, do
not use this polarized plug with an exten-
sion cord, receptacle, or other outlet un-
less you can fully insert the blades to
prevent blade exposure.
R
L
A
B
R
L
CAUTION: DO NOT CONNECT TV SET OR MONITOR.
FRONT SPEAKERS
L
R
AC 120V 60HZ
SWITCHED
100W MAX
0.8A MAX
L
R
AC OUTLET
CENTER
SPEAKER
REAR
SPEAKERS
14
Basic Operation
Note: The controls on the remote control work the same as the buttons on the
receiver’s front panel, though some are labeled differently.
Warning: To prevent possible hearing
loss, turn VOLUME to MIN before you turn
on the receiver or change the program
sources. After you turn on the receiver or
change the program source, adjust VOL-
UME to a comfortable listening level.
Follow these steps to use the receiver.
1. Press POWER to turn on the receiver’s power. It takes about 5 seconds to
begin hearing sound.
2. Select the speakers.
If you connected speakers only to the FRONT SPEAKERS A (or B) terminals,
press SPEAKERS A (or B) to turn on only those speakers.
If you connected speakers to both the FRONT SPEAKERS A and B terminals,
either:
•
Press in SPEAKERS A or B to turn on either pair of speakers for a two-
speaker stereo effect.
Note: If you want to find out what a par-
ticular button or control is used for, see
Page 23 (for the remote control) or Page
29 (for the front panel) to find the page
where the button or control is described.
•
Press in SPEAKERS A and B to turn on both pairs of speakers for a
four-speaker stereo effect.
Press out SPEAKERS A and B to turn off all speakers and listen privately
with headphones (see “Using Headphones” on Page 17).
3. Select a program source.
To tune to a radio station, see “Tuning the Radio” on Page 16.
To listen to signals from the component connected to TAPE 2 MONITOR,
press TAPE 2 MONITOR so TAPE2appears on the display.
Note: If you select a source while TAPE 2
MONITOR is engaged, TAPE 2 flashes
five times on the display, reminding you
to disengage the TAPE 2 MONITOR func-
tion.
To listen to a source other than one connected to TAPE 2 MONITOR, be sure
TAPE2does not show on the display. If necessary, press TAPE 2 MONITOR
so TAPE2disappears. Then press VCR/TAPE 1, PHONO, TUNER, CD, or LD/
DVD (laser disc/digital video disc), or repeatedly press FUNCTION on the
remote control, to display the desired program source.
4. Adjust VOLUME clockwise to increase the volume or counterclockwise to
decrease it. Or, you can use MASTER VOLUME –/+ on the remote control.
5. Use the BASS and TREBLE controls to adjust the program’s tonal quality.
To enhance the bass level, press SUPER BASS.
6. Adjust BALANCE to suit your listening preferences. See “BALANCE Con-
trol” on Page 17.
7. When you finish using the receiver, press POWER to turn it off.
15
Basic Operation
Tuning the Radio
Your receiver offers three types of electronic tuning — manual, automatic, and
memory.
Manual and Automatic Tuning
Note: For weak signals, we recommend
manual tuning.
Follow these steps to manually or automatically tune to the stations.
TUNER
FM/AM
to select the desired band. The receiver
1. Press
. Then press
tunes to and displays the frequency last selected in that band.
TUNING
2. Press
quency. Or, hold down
Release the button to stop.
or once to manually select the next higher or lower fre-
TUNING
or to rapidly change frequencies.
TUN-
To automatically search for the next higher or lower station, release
ING
as soon as the display starts to change. The receiver searches up or
down the band to the next strong station.
Notes:
• TUNEDappears when you tune to a strong station.
TUNING
TUNING
•
If you press
at the top of the frequency range or
at
the bottom of the frequency range, the display returns to the other
end of the range.
•
Automatic tuning works for FM stations only.
Memory Tuning
Memory tuning lets you store up to 30 AM or FM frequencies in three different
classes (10 frequencies in each class), then instantly tune to a stored station.
Follow these steps to store a station in a memory location.
TUNER
FM/AM
to select the desired band.
1. Press
. Then press
2. Use either manual or automatic tuning to select the frequency you want to
store.
Notes:
• If you store a frequency in a memory
that already contains a frequency, you
replace the previous frequency.
FM MONO
If desired, press
for FM stereo or monaural sound (see “Using
FM MONO” on Page 16). This setting is also stored in memory.
• If your receiver is disconnected from
AC power for several days, it loses all
the stored frequencies.
MEMORY
3. Press
. MEMORYlights, and -(for the channel number) and the
class number (1, 2, or 3) flash on the display for about 5 seconds.
CLASS
4. While MEMORYappears, press
until the class number you want (1,
STATION
2, or 3) appears, then press
or until the channel number you
want appears.
The class and station numbers light steadily, indicating the receiver mem-
orized the frequency.
CLASS
To tune to a stored station, press
so the desired class number appears,
STATION
/
then press
to select the station.
Basic Operation
FM MONO
To receive FM stations in stereo, press
so MONOdisappears from the
Using FM MONO
16
display. STEREOappears when you receive an FM broadcast in stereo.
You can improve the reception of weak FM stations by pressing FM MONO until
MONOappears. This reduces noise while you listen to a weak FM station, but
you get monaural instead of stereo sound.
The BALANCE control lets you adjust the sound balance between the left and
right speakers. If you properly position the speakers and your listening area is
centered between them, the center control setting is usually best (see “Position-
ing Speakers” on Page 5).
BALANCE Control
For an unusual speaker placement, adjust BALANCE as follows:
1. Select TUNER. Then press FM/AM to select the FM band.
2. Press FM MONO so MONOappears. The sound is monaural instead of ste-
reo, so each speaker delivers the same output.
3. Turn BALANCE until you hear the sound coming equally from each speaker
when you are in the listening area.
4. Press FM MONO so MONOdisappears from the display.
To temporarily mute the sound, press MUTING on the remote control. MUTING
appears. Press MUTING again to restore the audio level.
Muting the Receiver
Using Headphones
1
To listen with headphones (not supplied), insert the headphones’ /4-inch plug
into the receiver’s front panel PHONES jack. To silence the speakers, press
SPEAKERS A and B so you can listen with headphones without disturbing others.
Listening Safely
To protect your hearing, note the following when using headphones.
• Set the volume to its lowest setting before you begin listening. After you
begin listening, adjust the volume to a comfortable level.
• Do not listen at extremely high volume levels. Extended high-
volume listening can lead to permanent hearing loss.
• Once you set the volume, do not increase it. Over time, your ears adapt to
the volume level, so a volume level that does not cause discomfort might
still damage your hearing.
17
Cassette Deck/VCR Features
You can connect two cassette decks to the receiver. Selecting either VCR/TAPE 1
or TAPE 2 MONITOR lets you hear the playback from the cassette deck you con-
nected to the receiver’s corresponding (VCR/TAPE 1or TAPE 2 MONITOR) jacks.
Press VCR/TAPE 1. VCRappears on the display. You hear the playback from the
cassette deck or VCR you connected to the receiver’s VCR/TAPE 1 IN jacks.
Using the VCR/TAPE 1 and
TAPE 2 MONITOR Buttons
Press TAPE 2 MONITOR. TAPE 2appears on the display along with the last pro-
gram source you selected. You can hear playback or monitor a recording from
the cassette deck you connected to the receiver’s TAPE 2 MONITOR jacks. The
TAPE 2 MONITOR REC jacks continue to output sound from the previously selected
source when you press TAPE 2 MONITOR.
To return to the previous source, press TAPE 2 MONITOR again so TAPE2disap-
pears.
Notes:
• If you press TAPE 2 MONITOR when that cassette deck is neither playing nor
recording, the receiver mutes the current audio source. To hear the audio
source, press TAPE 2 MONITOR so TAPE2disappears from the display.
• Do not press TAPE 2 MONITOR while you are recording on the deck con-
nected to TAPE 2 MONITOR REC. If you do, the recording is interrupted for
about 1 second.
The receiver sends the audio of the program source you select—VCR/TAPE 1,
CD, LD/DVD, TUNER, or PHONO—to the VCR/TAPE 1 OUT (audio) and TAPE 2 MONI-
TOR REC jacks (if you select VCR/TAPE 1 or LD/DVD, the video program is also sent
to the TO MONITOR TV jack).
Recording an Audio Source
Dubbing a Cassette Tape
The VOLUME control does not affect the level of the signal going to the tape
decks.
You can copy, or dub, a cassette tape from one cassette deck to another.
You can use either deck as the playback or recording deck. However, if you
want to monitor the cassette deck during dubbing, use the deck connected to
the VCR/TAPE 1 jacks as the source, and the deck you connected to the TAPE 2
REC jacks as the recording deck. Then press TAPE 2 MONITOR so TAPE2and the
last program source you selected appear on the display. See “Using the VCR/
TAPE 1 and TAPE 2 MONITOR Buttons.”
18
Cassette Deck/VCR Features
You can connect two video sources to the receiver. If you connect a VCR to the
Playing and Recording
Video Tapes
VCR/TAPE 1
LD/DVD
audio and video jacks, you can copy video cassette
and
tapes from one VCR to another and monitor the dubbing process.
Playing a Video Tape
VCR/TAPE 1
To play a video tape, load the tape into the VCR connected to either
LD/DVD
VCR/TAPE 1
LD/DVD
or ) that corresponds to the jack
or
. Press the button (
the VCR is connected to. VCRor LD/DVDappears on the display. Follow the
VCR’s instructions to begin playback. If you connected a monitor to the
TO MONITOR TV
receiver’s
jack, you can view the program on that monitor.
Copying a Video Tape
Follow these steps to copy a video tape from one VCR to another.
LD/DVD
1. Load the tape you want to copy into the VCR connected to
.
2. Load a blank tape (or one you want to record over) into the VCR con-
VCR/TAPE 1
nected to the
jacks.
LD/DVD
3. Press
.
4. Begin recording and playback on the VCRs.
Important: Most material performed in public, such as concerts, plays, and
movies, or distributed on prerecorded video tapes is copyrighted. The unautho-
rized recording or duplication of copyrighted material is a violation of the copy-
right laws of most countries and such duplication may result in fines,
imprisonment, or both. Note, however, that in the United States, it is not a viola-
tion of U.S. copyright laws for a consumer to record a broadcast television pro-
gram for private (in-home) viewing.
19
Using Advanced Sound Options
Your receiver has four special sound options: Dolby Pro Logic Surround, Dolby
3CH Logic, Studio-Effect Surround, and Simulated Surround. These special
options enhance a program source.
Notes:
• To get the full benefit from programs encoded with Dolby Surround
Sound, you need a stereo VCR.
• Dolby Surround does not operate correctly if the signal passes through a
graphic equalizer. If you connected an equalizer to the TAPE 2 MONITOR
jacks, do not select TAPE 2 MONITOR when you listen to Dolby Surround
signals.
To activate Dolby Pro Logic Surround or Dolby 3CH Logic, press DOLBY PRO
LOGIC, then press CENTER MODE on the remote control to select the Dolby Pro
Logic options (normal, wide, or phantom) or Dolby 3CH Logic.
For studio effect or simulated surround, press SFC MODE until the desired option
appears on the display. On the remote control, press SURR MODE to select the
sound options; when you select the Dolby Pro Logic, use CENTER MODE to make
a selection (see “Sound Mode Adjustments (Remote Control Only)” on
Page 21).
Dolby Pro Logic Surround
Dolby Pro Logic Surround puts you in the middle of the action. The center- and
rear-channel speakers add incredible realism by directing the sound to the
appropriate speakers, making you feel like you are really there. You can find
hundreds of movies, television shows, and compact discs produced with Dolby
Surround.
Dolby 3CH Logic
Dolby 3CH Logic produces a more spacious sound field than is possible with
ordinary stereo playback, by combining the front and rear speaker sounds.
Select this mode when you play a Dolby Surround Sound program and do not
have rear speakers. The rear channel’s sound is sent to the front left and right
speakers.
Studio Effect
Studio Effect gives the effect of listening in a recording studio. The front speak-
ers provide normal stereo, and the rear speakers provide a subtly reverberated
sound. Select this mode when you listen to sources not encoded with Dolby
Surround.
Simulated Surround
Simulated Surround simulates a surround effect when you listen to a monaural
(mono) source.
20
Using Advanced Sound Options
Center Mode Setting
Sound Mode Adjustments
(Remote Control Only)
The center mode setting affects the center channel’s bass signals. It operates
only when you select the Dolby Pro Logic Surround or Dolby 3CH Logic mode.
AUDIO SURROUND
SURROUND
. Each time you
Slide
press
•
on the remote control to
Note: If you do not use a center speaker,
the monaural signals are only repro-
duced if you select PHANTOM.
CENTER MODE
on the remote control, the setting changes and the
receiver’s corresponding indicator lights: NORMAL, WIDE, or PHANTOMDolby
Pro Logic Surround options, or 3CH LOGIC.
NORMAL — Select this mode if you use a small center speaker. The front left
and right speakers play the center-channel bass sounds.
WIDE— Select this mode if you use a medium or large center speaker. The
center speaker plays the center-channel bass sounds.
PHANTOM— Select this mode if you have no center speaker. All center-chan-
nel sound comes from the front left and right speakers.
Test Tone
The test tone feature provides a test tone that lets you balance the signal levels
between all your speakers. To adjust the levels, see “Center Level” and “Rear
Level.”
To activate the test tone, select one of the surround sound modes and set
AUDIO SURROUND
SURROUND
TEST TONE
. Then press . The
•
on the remote to
receiver sounds a 2-second tone from the front left, center, front right, and rear
speakers, in sequence. The center test tone sounds only when you select the
Dolby Pro Logic Surround or Dolby 3CH Logic sound mode.
In the Dolby 3CH Logic sound mode, the receiver sounds a 2-second tone from
the left, center, and right speakers, in sequence.
TEST TONE
Press
again to turn off this feature.
Center Level
– CENTER LEVEL +
Press
to adjust the center speaker sound level while in the
Dolby Pro Logic Surround or Dolby 3CH Logic mode.
Notes:
VOLUME
• Use the
control to adjust the
overall sound level.
Rear Level
• Set the center mode to a selection
other than PHANTOM before adjusting
the center level.
– REAR LEVEL +
Press
to adjust the rear speakers’ sound level while in the Dolby
Pro Logic Surround or Simulated Surround mode.
Delay Time
In the Simulated Surround and Dolby Pro Logic Surround modes, the receiver
slightly delays the sound going to the rear speakers. You can change the delay
time from 15 to 30 milliseconds (ms) in 5 ms steps. Adjust this for the best sur-
round effect.
Notes:
• For Dolby Pro Logic Surround, the de-
lay is preset to 5 ms.
• The delay time does not affect the Stu-
dio Effect mode.
AUDIO SURROUND
SURROUND
DELAY TIME
. Then hold down to change the
Slide
•
to
delay time. The receiver displays the selected time.
21
Using the Remote Control
The remote control works up to a distance of about 23 feet, and within a 30-
degree angle on either side of the receiver. Point the control at the receiver’s
front panel and press the desired button(s).
Many buttons on the remote control work the same as buttons on the receiver’s
front panel. Use these buttons exactly as you would use the corresponding but-
tons on the receiver.
•
AUDIO SURROUND Switch
Set the switch to AUDIO to control audio components such as CD players or cas-
sette decks. Set the switch to SURROUND when setting the surround sound
options.
•
AUDIO SURROUND
When you set the switch to SURROUND, dual-function buttons control the function
marked in gold next to the button. For example, the button marked TEST TONE
and RETURN operates the test tone function when you set the switch to SUR-
ROUND and returns the system to default settings when you set the switch to
AUDIO.
SURROUND
AUDIO
ASMS
CD
RANDOM
BEST
DISC
Receiver/Amplifier Operation
DECK1
DECK2
TAPE
Before operation press RECEIVER POWER to select receiver/amplifier operation.
STATION
CLASS FM MONO
TAPE2
STATION
AU-
Moves to the next higher or lower station in memory with
REAR
FUNCTION
LEVEL
MONITOR
DIO•SURROUND set to AUDIO.
CENTER
LEVEL
SURR
MODE
Receiver/
MUTING
CLASS
AUDIO•SUR-
Selects the class of the station in memory with
ROUND set to AUDIO.
Amplifier
TEST
DELAY
TIME
CENTER
MODE
TONE
Section
RETURN
S.BASS
POWER
CD
MASTER
VOLUME
RECEIVER
TAPE
FM MONO
AUDIO•SURROUND
set to
Selects the FM reception mode with
AUDIO. See Page 17.
AUDIO/VIDEO
SYSTEM REMOTE
OSR
– REAR LEVEL +
TAPE 2 MONITOR
Controls the relative volume of the rear speakers. See Page 21.
Switches the receiver to monitor the source connected to the
TAPE 2 MONITOR jacks. See Page 15.
FUNCTION
Selects a program source (VCR/TAPE 1, PHONO, TUNER, CD,
or LD/DVD). Repeatedly press FUNCTION until the display shows
your desired program source. See Page 15.
RECEIVER
POWER
– CENTER LEVEL +
SURR MODE
Controls the relative volume of the center speaker. See Page 21.
Selects between Dolby Pro Logic Surround or Simulated Sur-
round sound. See Page 20.
MUTING
Silences the receiver. Press again to restore the sound to its pre-
vious level. See Page 17.
TEST TONE
RETURN
AUDIO•SURROUND
set
Sounds test tones from each speaker with
to SURROUND. See Page 21.
Returns the receiver to its default settings with
AUDIO•SUR-
ROUND set to AUDIO. See Page 24.
CENTER MODE
DELAY TIME
Selects among the three center modes or 3CH Logic. See Page
21.
Sets the rear-channel delay for Dolby Pro Logic Surround and
Simulated Surround programs with AUDIO•SURROUND set to
SURROUND. See Page 21.
S. BASS
AUDIO•SURROUND
Enhances bass sound with
set to .
AUDIO
+ MASTER VOLUME –
Adjusts the system’s volume. See Page 15.
Turns the receiver on and off. See Page 15.
RECEIVER POWER
Using the Remote Control
22
CD Player Operation
Before operation:
• Set AUDIO•SURROUND to AUDIO.
• Press CD POWER to select the CD player operation.
• You must connect the CD player to both your receiver’s CONTROL OUT and
audio jacks for these functions to work.
CD POWER
Turns the CD player on and off (only for CD players having the
CONTROL IN/OUT feature).
|
ASMS
|
Returns to the beginning of the current track or advances to the
next track.
Stops playback.
Press to pause play. Press again to resume.
Plays the CD.
SURROUND
AUDIO
ASMS
RANDOM
BEST
Plays the tracks on a CD in random order.
CD
CD Player
With a CD player that has a BEST track memory function, such
as an Optimus Professional Series CD-8200/8300/8400, press to
select and play your favorite CD tracks.
Section
RANDOM
BEST
DISC
DECK1
DECK2
DISC
Selects discs in a multi-play CD changer.
TAPE
Tape Section
Note: Some CD players might not function with DISC SELECT.
STATION
CLASS FM MONO
TAPE2
REAR
FUNCTION
LEVEL
MONITOR
CENTER
LEVEL
Tape Operation
SURR
MODE
MUTING
TEST
DELAY
TIME
CENTER
MODE
TONE
RETURN
S.BASS
Before operation:
POWER
CD
MASTER
VOLUME
RECEIVER
TAPE
• Set AUDIO•SURROUND to AUDIO.
AUDIO/VIDEO
SYSTEM REMOTE
OSR
• Press TAPE POWER to select the cassette deck operation.
• For a dual cassette deck, select DECK 1 or DECK 2. If you use a single cas-
sette deck, press DECK 2.
TAPE POWER
CD POWER
• You must connect the cassette deck to both your receiver’s CONTROL OUT
and audio jacks for these functions to work.
DECK 1/DECK 2
Selects Deck 1 or Deck 2 when you use a dual cassette deck.
Press to play the other side of an auto-reverse cassette deck.
Press to start normal playback.
and
Lets you quickly locate and play the beginning of recorded mate-
rial during play.
When the tape is stopped, lets you rapidly search forward or
backward to locate a specific section of the tape.
Stops playback/recording.
Press to temporarily stop playback/recording. Press again to re-
sume.
TAPE POWER
Turns on/off the cassette deck.
Note: TAPE POWER does not work with all decks.
23
Troubleshooting
If the receiver is not working as it should, the following suggestions might help. If you follow the suggestions in this chart and
the receiver still does not work properly, contact your local RadioShack store for assistance.
Problem
Cause
Suggestion
• Plug in the power cord.
Power does not turn on.
• Power cord is disconnected.
• Protection circuit is activated.
• Unplug the power cord, then plug it in again.
The receiver does not respond
to button presses.
• Static discharge has affected the
receiver.
• Unplug the power cord, then plug it in again. (If
static electricity is a problem, use the remote con-
trol as much as possible.)
No sound.
• Incorrect connections.
• Check and correct the connections.
• Press MUTING.
• The mute function is activated.
• The volume is turned down.
• Speaker wires are disconnected.
• Turn up the volume.
• Connect the speaker wires.
• Neither set of speakers is selected. • Press in SPEAKERS A or B.
• TAPE 2 function is engaged.
• Press TAPE 2 so TAPE 2clears from the display.
No picture when you select a
video source.
• The selected video source is not
set correctly.
• Correct the problem with the selected video
source.
• Incorrect connections.
• Station not correctly tuned.
• Antenna not connected.
• Check and correct the connections.
• Tune to a stronger station.
• Connect the antenna.
High noise level.
• FM antenna still coiled or is not
pointing in the correct direction.
• Stretch both ends of the antenna taut and reposi-
tion the antenna.
• AM loop antenna not pointing in
the correct direction.
• Adjust the AM loop antenna.
• Noise is coming from another elec- • Try using an AC line noise filter to reduce the
trical appliance.
noise.
Automatic tuning does not stop • Stations are too weak.
when searching for FM stations.
• Use a better antenna.
Cannot make copies of video
tapes.
• Tapes are protected by a copy pro- • You cannot make a good copy.
tection method.
• Video connections are incorrect.
• Check and correct the connections.
Remote does not control cas-
sette deck or CD player.
• Cassette deck or CD player is not • The feature only works with Optimus Professional
compatible.
Series components.
• Control cable is not plugged in.
• Audio cables are not plugged in.
• Properly connect the control cable.
• Properly connect the audio cables.
Press RETURN on the remote control to return the controls to the following set-
tings.
Returning Controls to
Factory Defaults
Tape 2 Monitor Off
Source
TUNER
FM (Set to the last-tuned frequency. If the receiver cannot
receive the frequency, it starts searching for the next strong
station.)
Band
Surround Mode Off
Muting
Off
Off
Super Bass
24
Care and Maintenance
Your Optimus STAV-3670 Audio/Video Receiver is an example of superior design and craftsmanship. The following sugges-
tions will help you care for the receiver so you can enjoy it for years.
Keep the receiver dry. If it gets wet, wipe it dry immediately. Liquids can contain
minerals that can corrode the electronic circuits.
Handle the receiver gently and carefully. Dropping it can damage its circuit
boards and can cause the receiver to work improperly.
Use and store the receiver only in normal temperature environments. Tempera-
ture extremes can shorten the life of electronic devices, damage batteries, and
distort or melt plastic parts.
Keep the receiver away from dust and dirt, which can cause premature wear of
parts.
Wipe the receiver with a damp cloth occasionally to keep it looking new. Do not
use harsh chemicals, cleaning solvents, or strong detergents to clean the
receiver.
Use only fresh batteries of the recommended size and type in the remote con-
trol. Always remove old or weak batteries. They can leak chemicals that can
destroy electronic circuits.
Modifying or tampering with your receiver’s internal components can cause a malfunction and might invalidate the receiver’s
warranty and void your FCC authorization to operate it. If the receiver is not operating as it should, take it to your local
RadioShack store for assistance.
25
The FCC Wants You to Know
Your receiver might cause radio or TV interference even when it is operating
properly. To determine whether your receiver is causing the interference, turn off
your receiver. If the interference goes away, your receiver is causing it. Try to
eliminate the interference by:
• Moving your radio or TV away from the receiver
• Connecting your receiver to an outlet that is on a different electrical circuit
from the radio or TV
• Contacting your local RadioShack store for help
If you cannot eliminate the interference, the FCC requires that you stop using
your receiver.
26
Specifications
Amplifier
Front Channel Average Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Watts per Channel into 8 Ohms
From 40 to 20,000 Hz,
With No More than 0.9% Total Harmonic Distortion
Measured Pursuant to the Federal Trade Commission’s
Trade Regulation Rule on Amplifier Output Power Claims
Front Channel Surround Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Watts per Channel (1 kHz, 0.8% THD, 8 Ohms)
Center Channel Surround Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Watts (1 kHz, 0.8% THD, 8 Ohms)
Continuous Rear Surround Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Watts per Channel (1 kHz, 0.8% THD, 8 Ohms)
Input Sensitivity/Impedance
Phono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.8 mV/47 kOhms
CD, LD/DVD, VCR/TAPE 1, TAPE 2 Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mV/47 kOhms
Phono Overload Level (0.1% THD, 1 kHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mV
Frequency Response
Phono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Hz to 20,000 Hz ±0.3 dB
CD, LD/DVD, VCR/TAPE 1, TAPE 2 Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Hz to 100,000 Hz +0/–3 dB
Output Level/Impedance
VCR/TAPE 1 OUT, TAPE 2 Monitor REC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mV/2.2 kOhms
Tone Controls
Bass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±8 dB (150 Hz)
Treble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±8 dB (10 kHz)
Super Bass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +8 dB (80 Hz)
Signal-to-Noise Ratio (IHF, Short Circuited, A Network)
Phono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 dB
CD, LD/DVD, VCR/TAPE 1, TAPE 2 Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 dB
Signal-to-Noise Ratio (EIA, at 1 Watt, 1 kHz)
Phono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 dB
CD, LD/DVD, VCR/TAPE 1, TAPE 2 Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 dB
Video Section
Input Sensitivity/Impedance VCR/TAPE 1, LD/DVD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Volt Peak-to-Peak/75 Ohms
Output Level/Impedance VCR/TAPE 1, Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Volt Peak-to-Peak/75 Ohms
Frequency Response VCR/TAPE 1, LD/DVD Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Hz to 7 MHz +0/–3 dB
Signal-to-Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 dB
Crosstalk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 dB
27
Specifications
FM Tuner
Frequency Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87.5 to 108 MHz
Usable Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mono: 11.2 dBf, IHF (1.0 µV/75 Ohms)
50 dB Quieting Sensitivity
Mono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.8 dBf (1.9 µV/75 Ohms)
Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38.6 dBf (23.3 µV/75 Ohms)
Signal-to-Noise Ratio
Mono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 dB (at 85 dBf)
Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 dB (at 85 dBf)
Distortion Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5% (1 kHz)
Alternate Channel Selectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 dB (400 kHz)
Stereo Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 dB (1 kHz)
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Hz to 15 kHz (±1 dB)
Antenna Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Ohms Unbalanced
AM Tuner
Frequency Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530 to 1700 kHz
Sensitivity (IHF, Loop Antenna) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350 µV/m
Selectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 dB
Signal-to-Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 dB
General
Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Volts AC, 60 Hz
Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230 Watts, 330 VA (UL)
AC Outlet Ratings Switched . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Total 100 Watts (0.8 Amps) Maximum
Dimensions (HWD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51/2 × 169/16 × 1215/16 Inches
(140 × 420 × 328 mm)
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 lb 9 oz
(7.5 kg)
Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice.
28
Index to Features by Control Name
This table lists the control and indicator names found on the front of your receiver, along with the page number where the con-
trol or indicator is discussed. To find a description for the buttons on the remote control, see “Using the Remote Control” on
Page 22.
Control
Page
BALANCE
BASS
17
15
CD
15
CLASS
16
DOLBY PRO LOGIC
FM MONO
FM/AM
20
17
16
LD/DVD
15
MEMORY
16
PHONES
17
PHONO
15
POWER
15
SFC MODE
SPEAKERS A and B
STATION
20
15
16
SUPER BASS
TAPE 2 MONITOR
TREBLE
15
15, 18
15
TUNER
16
TUNING
16
VCR/TAPE 1
VOLUME
15, 18
15
29
Notes
30
Notes
31
Limited Two-Year Warranty
This product is warranted by RadioShack against manufacturing defects in material and workman-
ship under normal use for two (2) years 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
<ARB7121-A>
6A7
Printed in Singapore
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