Optimus STAV-3780 User Manual

THEATER

POWER

STANDBY

5-D

STAV-3780 AUDIO/VIDEO RECEIVER

DOLBY

VIRTUAL

PRO LOGIC

SRS

Cat. No. 31-3045

Audio/Video
Receiver

STAV-3780

DOLBY SURROUND

PRO LOGIC

DSP

MODE

DSP

DIGITAL
SIGNAL

PROCESSOR

OSR

VCR

DVD/TV LD/SAT CD FM/AM PHONO

TAPE 1

DVD 5.1CH

TAPE 2
MONITOR

VOLUME

PHONES

Owner’s Manual

5X100WATT

EQUAL POWER OUTPUT

SPEAKERS

MUTINGLOUDNESS

DIRECT

TUNING
SELECT

CLASSMPX MODE MEMORY

SELECT

STATION

TUNING

TONE

L BALANCE R

MAXMIN

Please read before using this equipment.

Introducing the Optimus STAV-3780

Your Optimus STAV-3780 Audio/Video Receiver operates as the perfect
control center for your audio/video system. It combines 100 watts-per­channel of clean power with modern styling. It provides connections for
one tape deck, one VCR, two audio/video sources, a turntable, a CD
player, and two TV’s or video monitors.

Your receiver has special sound options. Dolby Pro Logic
Sound delivers movie theater sound for audio/video programs (espe­cially those encoded with Dolby Surround Sound signals). DSP Effects
creates a listening environment that simulates a concert hall, jazz club,
theater, or a d an ce hall. Virtual Dol by Surround uses TruSurround tech-
nology to provide a three-dimensional sound field using only the front
left and right speakers. 5-D Theater provides clear dynamic sound effect
by sending audio signals through the rear channel to simulate stereo
sound.

In addition, you can connect a multi-channel decoder or DVD player
with 5.1-channel output so that all five channels and the subwoofer
have independent signals.

Additional features include:

Digital-Synthesized Tuner Precisely tunes to AM and FM stations.

30 Memory Locations Let you store and recall the frequencies for up to 30 AM/FM stations.

Automatic Tuning Searches for the next available AM/FM station.

Tape Monitoring Lets you listen to the actual recording as you record, if your tape deck

has a tape-monitoring feature.

Built-In Protection Circuits Automatically turn off the receiver to help avoid power surges or short

circuit damage.

Remote Control Lets you use a single remote control for the receiver and other compati-

ble components connected to the receiver.
Note: The remote control requires two AA batteries (not su pplied).

®

Surround

We recommend you record the receiver’s serial number here. The number is on the re­ceiver’s back panel.

Serial Number:_____________________________________________

Note to the Cable TV System Installer:

This reminder is provided to call the CATV system installer’s attention to Article 820-40 of the National Electrical Code that
provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the ground­ing system of the building as close to the point of cable entry as practical.



1999 Tandy Corporation.

RadioShack and Optimus are registered trademarks used by Tandy Corporation.

All Rights Reserved.

2

IMPORTANT SAFETY INSTRUCTIONS

s

(

)

This receiver is made and tested to meet exacting
safety standards. It meets both UL and FCC require­ments.

:

WARNING

hazard, do not expose this product to rain or
moisture.

To reduce the risk of fire or shock

CAUTION

RISK OF ELECTRIC SHOCK.

DO NOT OPEN.

CAUTION

ELECTRIC SHOCK, DO NOT REMOVE
COVER OR BACK. NO USER-SERVICE­ABLE PARTS INSIDE. REFER SERVICING
TO QUALIFIED PERSONNEL.

: TO REDUCE THE RISK OF

This symbol is intended to alert
you to the presence of uninsu­lated dangerous voltage within
the product’s enclosure that might
be of sufficient magnitude to con­stitute a risk of electric shock. Do
not open the product’s case.

This symbol is intended to inform
you that important operating and
maintenance instructions are

!

included in the literature accom­panying this product.

!

CAUTION

Power Lines

power lines.

Nonuse Periods

when you will not use it for extended periods.

Outdoor Antenna Grounding

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 antenna­discharge unit, connection to grounding electrodes,
and requirements for the grounding electrode. See the
example below.

NEC -- National Electrical Code

—Locate an outdoor antenna away fr om

—Unplug the receive r’s power cord

—If an outside antenna

Antenna
Lead-In
Wire

Ground Clamp

Antenna
Discharge Unit

Electric
Service
Equipment

(NEC Section 810-20)
Grounding Conductor

(NEC Section 810-21)

Grounding Clamps

Power Service Grounding
Electrode System

NECArticle 250,Part H

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 a nd
accessories. Read all the included safety and operating instructions before using your receiver.
Follow them closely, and retain them for future reference.

Heed Warnings
Cleaning

cleaning. Do not use liquid or aerosol cleaners.

Attachments

turer, as they might create a hazard.

Water and Moisture

bowl, kitchen sink, or laundry tub; in a wet basement; or near a swimming pool).

Accessories

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 recomm ended mounting
accessory.

Power Sources

label. If you are not sure of your home's power type, consult your product dealer or local power
company.

Polarization

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, con­tact your electrician to replace your obsolete outlet. Do not defeat the sa fe ty pur pose of the polar ­ized plug. If you need an extension, use a polarized cord.

Power-Cord Protection

pinched by items placed on or against them, paying particular atten tion to cords at plugs, conve ­nience receptacles, and the point where they exit from the product.

Lightning

tended and unused for long periods of time, unplug it from the wall outlet and disconnect the
antenna or cable system. This will prevent damage to the product due to lightning and power-line
surges.

Overloading

cles, as this can result in a risk of fire or electric shock.

Objects and Liquids

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.

Servicing

expose you to dangerous voltage or other hazards. Refer all serv icing to q ualified service person ­nel.

Damage Requiring Service

qualified service personnel under the following conditions:

— Follow all warnings on the product and in the oper atin g instruc tions.

— Unplug this product from the wall outlet before cleaning. Use only a damp cloth for

— Do not use attachm ents /acces sories no t reco mmen ded by the pr od uct manufac -

— Do not use this product near water (for example, near a bathtub, wash-

— Do not place this product on an unstable cart, stand, tripod, bracket, or table. The

— Move the prod uct on a cart car efully. Quick stops, excess ive fo rce, a nd

Carts

uneven surfaces may cause the product/cart to overturn.

Ventilation

able operation, and protect from overheating. Do not block or cover these open­ings, 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 ven­tilation as specified by the manufacturer.

— Slots and opening s in the cabinet provide ventilation , ensure reli-

— Operate th is product using only the power source indicated on its marking

— This product is equipped with a pola rized AC line plug (a plug having one blade

— Route po wer-supply cords so they are not likely to be walked on or

— For added protection for this pro duct during a lightning storm, or when it is left unat-

— Do not overload wall outlets, extension cords, or integral convenience recepta-

— Never pu sh objects of any kind into this product through openings, as

— Do not attempt to se rvice this product yo urself, as opening or remo ving covers ma y

— Unplug th is product from the wall outlet and refer servicing to

• 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 adjustmen t of
other controls may result in damage and will ofte n require e xtensive work by a qualified tech ni­cian to restore the product to normal operation.

• If the product has been dropped or damaged in any way.

• When the product exhibits a distinct change in performance.

Replacement Parts

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.

Safety Check

to perform safety checks to determine that the product is in proper operating condition.

Wall or Ceiling Mount

mended by the manufacturer.

— The product should be situated away from heat sources such as radiators, heat registers,

Heat

stoves, or other products (including amplifiers) that produce heat.

— When replacement parts are required, be sure the service technician uses

— Upon completion of service or repairs to this pro duct, ask the service technician

— The product sh ould be mounted to a wall or ceiling only as recom-

3

Contents

Preparing Your Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Positioning Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Connecting Speakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Connecting Program Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Connecting the Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Using One Remote Control for More than One Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Installing the Remote Control’s Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Using the AC Power Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Connecting to AC Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Tuning the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Using MPX Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Adjusting Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Using Headphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Muting the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Loudness Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Bypassing the Sound Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Cassette Deck/VCR Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Using the VCR/TAPE 1 and TAPE 2 MONITOR Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Monitoring a Program Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Dubbing a Cassette Tape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Playing and Recording Video Tapes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Using Advanced Sound Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Sound Mode Adjustments (Remote Control Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Using the Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Care and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

The FCC Wants You to Know . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Index to Features by Control Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4

Preparing Your Receiver

Caution:

Make all the necessary connections before you plug in or turn on the receiver.

Positioning Speakers

a

L

b

Normal Listening Point

• Surround speakers generally sound
best if you position them above ear
level.

• To avoid picture interference of a
nearby TV, use magnetically shielded
speaker systems. This is particularly
important for the center speaker since
it is usually located closest to the TV.

R

Midway Point
Between Speakers

a=b

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 different locations for your speakers.

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 , o r raise
them 6 to 18 inches off the floor. You can buy speaker stands at your
local RadioShack store.

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.

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 dispersion. You can angle the speakers toward you for better
stereo effect.

To position your speakers for surround sound, place the 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 22). Place the center speaker above, below, or
behind the TV. If you place it beside the TV, the picture may not coin­cide with the sound.

Front Left
Speaker

Rear Left
Speaker

Center Speaker

Front

Listening

Area

Rear

Front Right
Speaker

Rear Right
Speaker

5

Preparing Your Receiver

Connecting Speakers

Follow these guidelines when you select
and connect speakers.

• Only connect speakers that are rated
at between 6 and 16 Ohms.

• Be sure you properly connect all
speakers.

• Do not connect two pairs of speakers
to a single set of terminals at the
same time.

• Optimus and other high-quality speak­ers have color-coded speaker termi­nals (red for positive polarity and
black for negative polarity). Use these
color-coded terminals as a guide to
help you properly connect the speak­ers to the receiver.

• Use 16-gauge (or larger) speaker wire
for all speaker connections, and con­sider possible speaker locations be­fore you decide how much speaker
wire you need.

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 steps to prepare the speaker wires.

Wire Strands

Speaker Wire

Conductor

1. Cut the speaker wires to the necessary length.

2. Separate the wires about 4 inches on each end.

3. Using a wire stripper, carefully strip about
from the end of each conductor.

4. Twist the end of each conductor to secure any loose wire strands.

Wire Strands

3

/4 inch of insulation

Setting the Impedance Selector Switch

Before proceeding to speaker connection, be sure to set the

SELECTOR

with 6- to 8-ohm impedance, set the switch to
you are using 8- to 16-ohm impedance, set it to

switch to the appropriate position. If you connect speakers

6~LESS THAN 8 W

8~16

6

position.

ΩΩΩΩ

IMPEDANCE

position. If

Preparing Your Receiver

AUDIO

IN

AUDIO

IN

Amplified
Subwoofer

Right Front Speakers

Right

Center Speaker

R

CENTER

SPEAKER

A

B

L

L

R

SURROUND

SPEAKERS

R

R

FRONT SPEAKERS

L

L

CENTER
PRE OUT

PRE OUT

SUB

WOOFER

Surround SpeakersRight Left

R

CAUTION:

A

B

Left

SPEAKER IMPEDANCE
6Ω OR 8Ω ~16Ω / SPEAKER

Left

Be sure you connect the re-

Note:

ceiver’s right and left positive (+) and
negative (–) terminals to the speaker’s
corresponding right and left positive (+)
and negative (–) terminals.

Connecting the Front Speakers

Follow these steps to connect the right speaker to the receiver’s right

FRONT SPEAKERS

1. Press open the receiver’s
the ridged or color-coded conductor’s end into the small hole.
Press the lever closed to secure the conductor.

2. Press open the receiver’s
the other conductor’s end into the small hole. Press the lever
closed to secure the conductor.

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

SPEAKERS

terminals.

left terminals.

FRONT SPEAKERS R

FRONT SPEAKERS R (–

(+) red lever and insert

) black lever and insert

FRONT

7

Preparing Your Receiver

Preparing Your Receiver

Connecting Surround-Sound Speakers

You can connect a pair of speakers to the receiver for surround-sound
programs. Follow the steps in “Connecting the Front Speakers” to con­nect the speakers to the

SURROUND SPEAKERS

terminals.

Connecting the Center Speaker

The center speaker gives additional ambience to surround sound. Fol­low the steps in “Connecting the Front Speakers” to connect the center
speaker to the

Or, if you are intending to use the amplified speaker as your center
speaker, connect
nect this jack to the audio input of your TV.

CENTER SPEAKER

CENTER PRE OUT

terminals.

to its line-level input. You can also con-

Connecting a Subwoofer Amplifier

Your receiver includes a line-level subwoofer output. Connecting a sub­woofer to your system dramatic ally 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 earthquake, the bone-jarring percussion of a
cannon, and more. To use the subwoofer output, simply connect

WOOFER PRE OUT

amplifier to which you have connected a subwoofer.
RadioShack stores sell a variety of suitable subwoofers and amplifiers.

to an amplified subwoofer’s line-level input or to an

SUB-

8

Preparing Your Receiver

Connecting
Program Sources

You can connect up to five external program sources to your receiver.

DVD 5.1CH

Turntable

INPUT

SURROUND

VIDEO OUT

TO MONITOR TV

1

VIDEO

IN IN

L
R

PHONO

R

OUT PUT

CD Player Cassette Deck Cassette Deck

IN IN IN OUT IN OUT

DVD/

TV

CD

DVD 5.1CH

FRONT

SIGNAL GND

L

R

L

L
R

CD

2

LD/

SAT

R

L

REC PLAY

REC

INPUT OUTPUT

SURROUND

VCR/TAPE1

R

L

LINE

L

R

PLAY

L

CENTER

L

WOOFER

R

L

R

R

CENTER
PRE OUT

PRE OUT

SUB

SUB

WOOFER

CONTROL

OUT

PLAY RECPLAY REC

TAPE2 MONITOR

L

R

L

LINE

REC PLAY

L
R

REC

INPUT OUTPUT

L
R

L

R

R

L

R

PLAY

Use shielded audio cables with

Note:

phono connectors for all audio connec­tions.

If you place the cassette deck di-

Note:

rectly above, below, or to the left of the
receiver, the receiver could interfere with
the cassette deck’s operation. If possi­ble, position the cassette deck to the
right or away from the receiver.

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.

Connect the turntable’s left and right cables to the receiver’s

(right)

R

receiver’s

PHONO IN

jacks. Then connect the turntable’s ground wire to the

SIGNAL GND

terminal.

(left) and

L

Connecting a CD Player

To connect a CD player to the recei ver, connect the CD player’s left and
right output jacks to the receiver’s

and

L

R CD IN

jacks.

Connecting Cassette Decks

You can connect cassette decks to the

VCR/TAPE 1

jacks. Connect the cassette deck’s output jacks to the
or

TAPE 2 MONITOR IN PLAY

jacks to the

VCR/TAPE 1 OUT REC

jacks. Then, connect the cassette deck’s input

or

TAPE 2 MONITOR OUT REC

You can connect a third cassette deck (for playback only) to the
or

(audio) jacks.

LD/SAT

and

TAPE 2 MONITOR

VCR/TAPE 1 IN PLAY

jacks.

DVD/TV IN

9

Preparing Your Receiver

VIDEO

DVD 5.1CH

IN IN

SURROUND

VIDEO OUT

TO MONITOR TV

1

V

VIDEO

IN IN IN OUT IN OUT

SURROUND

2

INPUT

CENTER

CENTER

PRE OUT

L

PRE OUT

SUB

SUB

WOOFER

R

WOOFER

CONTROL

OUT

L
R

V

V

VIDEO

OUT

PLAY RECPLAY REC

TAPE2 MONITOR

R

L

L

R

AUDIO

REC PLAY

REC

INPUT OUTPUT

R

L

L

R

VIDEO

OUT

L
R

IN

PLAY

V

V

V

V

DVD/

PHONO

V

V

IN

VIDEO

OUT

TV

LD/

R

R

SAT

AUDIO

OUT

L

L

VCR/TAPE1

L

R

CD

DVD 5.1CH

FRONT

SIGNAL GND

R

L

R

L

V

AUDIO

OUT

L
R

If your VCR is monaural, use a Y-

Note:

adapter (available at your local Ra­dioShack store) to connect the VCR’s
audio output to both the

and R audio in-

L

puts on the receiver.

TV Monitor

DVD

DVD

LD Player

VCR

VCR

Connecting Video Sources

If you connect three video sources, such as VCRs, laser disc (LD) play­ers, or digital 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 so urce connected to

.

TAPE 1

VCR/

Connect phono cables from each video source ’s au dio outputs to the
receiver’s

VCR/TAPE 1 IN PLAY, LD/SAT IN,

phono cables from the re cei ver ’s

or

DVD/TV IN

VCR/TAPE 1 OUT REC

jacks. Then connect

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, LD/SA T VIDEO I N

video cables from the receiver’s

, or

DVD/TV VIDEO IN

VCR/TAPE 1 VIDEO OUT

jacks. Then connect
jack to the source’s

video input.

Connecting TVs/Video Monitors

You can connect either two TV’s or video monitors to the receiver. The
monitor (or TV with baseband video input) you connect to the
terminal can monitor any program you connect to the receiver’s vid eo
input jacks. Connect a video cable from the receiver’s

1 or 2 jack to the monitor’s video input.

TOR TV

VIDEO OUT TO MONI-

VIDEO OUT

10

IN IN

PHONO

DVD 5.1CH

SURROUND

VIDEO OUT

TO MONITOR TV

1

VIDEO

IN IN IN OUT IN OUT

DVD/

TV

CD

DVD 5.1CH

FRONT

SIGNAL GND

R

L

V

R

L

V

AUDIO

VIDEO

OUT

OUT

LRL

2

LD/

SAT

R

L

R

L

SURROUND

OUT

R

DVD

SURROUND

VCR/TAPE1

CENTER

OUT

SUBWOOFER

OUT

DVD

Preparing Your Receiver

INPUT

CENTER

L

WOOFER

R

CENTER

PRE OUT

PRE OUT

SUB

SUB

WOOFER

CONTROL

OUT

PLAY RECPLAY REC

TAPE2 MONITOR

L
R

Subwoofer output is obtained only

Note:

when you connect a subwoofer to the

SUBWOOFER PREOUT

jack. If you use a
passive subwoofer (without an amplifier),
subwoofer output is not obtained.

Preparing Your Receiver

DVD 5.1-Channel Inputs

The STAV-3780 accep ts both 2-channel and 5.1 -channel input for DVD
players and multi-channel decoders. Selecting the 5.1-channel mode
enables the

SURROUND L/R, CENTER

nal processing with multi-channel decoder or DVD player with 5.1­channel output.

, and

SUBWOOFER

output jacks for sig-

11

Preparing Your Receiver

Connecting the Antennas

ANTENNA

AM

FM

UNBAL

75Ω

ANTENNA

AM

FM

UNBAL

75Ω

LOOP
ANTENNA

LOOP
ANTENNA

AM Loop

Antenna

Outdoor AM Antenna

AM Loop
Antenna

In many areas, the supplied indoor AM loop and FM antennas provide
satisfactory reception.

AM Antennas

Assemble the supplied AM antenna’s base by swinging the base in the
direction of the arrow and inserting t h e an tenna’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.

Attach the antenna wires to the

AM LOOP ANTENNA

nals (upper two terminals).
Place the antenna on a flat surface and ro tate it for the best AM recep-

tion.

Notes:

• Keep the AM loop antenna connected even when you use another
indoor antenna or an outdoor AM antenna.

• Ensure that the antenna does not touch the receiver or any other
metal object.

• Do not place the antenna near a CD player, a personal computer,
or a TV set.

• If the wire between your AM loop antenna and receiver is too
short, you can add extra wire, available at your local RadioShack
store.

You can als o use an optional RadioShack shortwave antenna kit (Cat.
No. 278-758), which makes an excellent outdoor AM antenna. Connect
the outdoor AM antenna wire to the receiv er’s AM terminal, as shown.

and (ground) termi-

For the best results, use 75-ohm

Note:

coaxial cable to connect an outdoor an­tenna to the receiver.

ANTENNA

AM

LOOP
ANTENNA

FM

UNBAL

Ω

75

12

FM Antennas

Connect the supplied FM antenna to the

FM UNBAL 75

shown, then extend it.
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.

terminal as

Ω

Preparing Your Receiver

Warning:

To prevent injury, read and fol­low all cautions and warnings that ac­company the outdoor antenna.

Caution:

The cable’s shielding should
only touch the terminal.

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.

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
terminal.

Ω

75

1

2. With a stripping tool, remove about 1

/2 inches of the outdoor

FM UNBAL

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 cen-

ter wire.

5. Pull the shielding to one side. Connect the center wire to the

receiver’s

FM UNBAL 75

loose wire strands, and connect it to the

Outer Insulation

Outdoor FM Antenna

terminal. Twist the shielding to secure any

Ω

FM UNBAL 75

Inner Insulation

Center Wire

Shielding

terminal.

Ω

ANTENNA

AM

LOOP

UNBAL

ANTENNA

FM

Ω

75

Shielding

Center
Wire

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.

13

Preparing Your Receiver

Using One Remote Control
for More than One Unit

When you plug the cable into a

Note:

component’s

CONTROL IN

jack, that com­ponent’s remote sensor does not func­tion.

CONTROL

OUT

Receiver

Remote To the CONTROL IN jack
Control of Another Component

CONTROL

IN

OUT

Other Component
with OSR Mark

having the OSR Mark

Installing the
Remote Control’s Batteries

If you also have an Optimus professional series CD player, VCR, or cas­sette deck with the OSR mark ( ), you can connect its

CONTROL IN

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.

1. Connect each component to the receiver as shown in “Connecting
Program Sources” on Page 9.

Note: Y ou must connect the audio cables between the receiver and
the other audio accessory to use your receiver’s remote control to
control the accessory.

2. Connect the cable supplied with the CD player, VCR, or cassette
deck to the receiver’s

CONTROL IN

jack.

CONTROL OUT

jack and the other component’s

3. When you want to control more than one other component using
the receiver’s remote control, daisy-chain the

CONTROL IN

connections as shown.

CONTROL OUT

and

Your remote control requires two AA batteries (not included) for power.
For the best operation and longest life, we recommend alkaline batter­ies, available at your local RadioShack store.

Cautions:

• 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.

If the remote’s range is reduced,

Note:

replace the batteries.

14

1. Press and slide open the battery compartment cover.

2. Place two fresh AA batteries in the compartment as indicated by
the polarity symbols (+ and –) marked in the compartment.

3. Replace the battery compartment cover.

Preparing Your Receiver

Using the AC Power Outlet

Caution:

high power consumption, such as a
heater, iron, monitor, or TV, to this AC
outlet. Doing so can cause a risk of over­heating and fire, and could damage the
receiver.

Do not connect appliances with

Connecting to AC Power

Warning:

not use this polarized plug with an exten­sion cord, receptacle, or other outlet un­less you can fully insert the blades to
prevent blade exposure.

To prevent electric shock, do

Your receiver has an AC power outlet that you can use to power an elec­tronic device, such as a turntable, cassette deck, or VCR. This switched
outlet turns on and off with the receiver and provides a maximum of
100 watts.

AC 120V 60Hz

CAUTION:

8 ~16Ω/

CAUTION:

SEE INSTRUCTION
MANUAL

6~LESS THAN 8Ω/

IMPEDANCE

SELECTOR

SPEAKER

SPEAKER

DO NOT CONNECT
TV SET OR MONITOR.

SWITCHED
100W MAX

0.8A MAX

AC OUTLET

Before you plug in the receiver’s power cord, double check all other con­nections.

To power the receiver, plug the supplied power cord into a standard AC
outlet. The power cord’s plug is polarized and fit s only one way.

R

L

CAUTION:

SPEAKER IMPEDANCE

L

L

A

B

6Ω OR 8Ω ~16Ω / SPEAKER

CAUTION:

SEE INSTRUCTION
MANUAL

IMPEDANCE

SELECTOR

8 ~16Ω/
SPEAKER

6~LESS THAN 8Ω/

SPEAKER

CAUTION:

DO NOT CONNECT
TV SET OR MONITOR.

AC 120V 60Hz

SWITCHED
100W MAX

0.8A MAX

AC OUTLET

CENTER

SPEAKER

A

B

L

R

SURROUND

SPEAKERS

R

R

FRONT SPEAKERS

15

Basic Operation

Warning:

loss, turn

To prevent possible hearing

to

VOLUME

before you turn

MIN

on the receiver or change the program
sources. After you turn on the receiver or
change the program source, adjust

to a comfortable listening level.

UME

If you select a source while

Note:

MONITOR

is engaged,

TAPE 2

VOL-

TAPE 2

flashes
five times on the display, reminding you
to disengage the

TAPE 2 MONITOR

func-

tion.

The controls on the re mote co ntrol wo rk the same a s the buttons on the
receiver’s front panel, though some are labeled dif ferently.

Follow these steps to use the receiver.

1. Press

2. Press

to turn on the receiver’s power.

POWER

SPEAKERS

on the front panel (if necessary) so SP A appears

on the display.

3. Select a program source.
To tune to a radio station, see “Tuning the Radio” on Page 17.
To listen to signals from the component connected to

TOR

, press

TAPE 2 MONITOR

so TAPE 2 appears on the display.

To listen to a source other than one connected to
be sure

TAPE 2 MONITOR
or LD/SAT

or repeatedly press

TAPE 2 does not show on the display. If necessary, press

so TAPE 2 disappears. Then press

(digital video disc/laser disc), CD,

on the remote control, to display the de-

FUNC

AM/FM

TAPE 2 MONI-

TAPE 2 MONITOR

VCR/TAPE 1, DVD/TV

(tuner), or

PHONO

,

sired program source.

4. Adjust
wise to decrease it. Or, you can use

clockwise to increase the volume or counterclock-

VOLUME

MASTER VOLUME –/+

on the

remote control.

5. Adjust the bass, treble, or balance to suit your listening prefer­ence.

Repeatedly press

TONE/BALANCE

item you want to adjust appears on the display —

BALANCE. Then press

on the front of the receiver until the

TREB, BASS, or

TONE

until you get the desired sound.

For more detail on adjusting the sound balance, see “Adjusting
Balance” on Page 18.

6. When you finish using the receiver, press

POWER

to turn it off.

,

T o find out what a particular button

Note:

or control is used for, see Page 25 (for
the remote control) or Page 39 (for the
front panel) to find the page where the
button or control is described.

16

Basic Operation

Tuning the Radio

Notes:

• A class is a group of up to 10 station
frequencies.

• For weak signals, we recommend
manual tuning.

Your receiver has four types of electronic tuning — manual, automatic,
direct access, and memory.

Manual and Automatic Tuning

Follow these steps to manually or automatically tune to stations.
Note: If none of the tuning buttons on the remote control operate, press

first.

TUNER

1. Press

on the front panel (or repeatedly press

FM/AM

remote control so the band name and frequency appears on the
display) to select the tuner.

2. Press

FM/AM

again (

on the remote control) to select the desired

BAND

band. The receiver tunes to and displays the frequency last
selected in that band.

A, B, or C and a single digit number appear to the left of the sta-

If
tion frequency, press
the band name (

AM or FM) appears.

TUNING SELECT (BAND

on the remote control) so

3. To manually select the next lower or higher frequency, press

TUNING

once to manually select the next lower or higher fre-

quency. Or, hold down the button to rapidly change frequencies,
and release it.

To automatically search for the next lower or higher station, hold
down

TUNING

until the display starts to change, then release
it. The receiver searches down or up the band to the next strong
station.

Notes:

•

TUNED appears when you receive a strong signal.

• If you press

TUNING

at the bottom of the frequency range, the display

at the top of the frequency range or

TUNING

returns to the other end of the range.

FUNC

on the

Direct Access Tuning (Remote Control Only)

Follow these steps to directly enter a frequency.

1. Press

to select the tuner. Then press

TUNER

desired band. The receiver tunes to and displays the frequency
last selected in that band.

2. Press
with the first

DIRECT ACCESS

. __ __ __ __ appears on the display

__ flashing.

3. Enter the desired frequency using the number buttons.

Notes:

• If you enter an invalid frequency (for example, entering 828), the
receiver tunes to the closest valid frequency (830 kHz).

• If you do not press a key within 5 seconds, the receiver exits direct
access tuning. Start over at Step 2.

to select the

BAND

17

Basic Operation

Notes:

• If you store a frequency in a memory
that already contains a frequency, you
replace the previous frequency.

• If your receiver is disconnected from
AC power for several days, it loses all
the stored frequencies.

Memory Tuning

Memory tuning lets you store up to 30 AM or FM frequencies in three
different classes (10 frequencies in each class), then quickly tune to a
class and station.

Follow these steps to store a station in a memory location using the
front panel controls. (You cannot store a station in a memory using the
remote control.)

1. Press

to select the tuner, then press

FM/AM

desired band.

2. Tune to the frequency you want to store.
If desired, press

MPX MODE (MPX

on the remote control) for FM stereo
or monaural sound (see “Using MPX Mode”). This setting is also
stored in memory.

3. Press

. The class (A, B, or C) and

MEMORY

ber) flash on the display for about 5 seconds.

4. Press
press

until the class you want (A, B, or C) appears, then

CLASS

STATION

until the channel number you want appears.

In about 5 seconds, the class and channel number light steadily,
indicating the receiver stored the frequency.

To tune to a stored station, press
appears, then repeatedly press

so the desired class number

CLASS

STATION

to select the channel. Or,
you can directly enter the channel number using that number’s key on
the remote control.

again to select the

FM/AM

__

(for the channel num-

Using MPX Mode

Adjusting Balance

18

To receive FM stations in stereo, press
from the display.

STEREO appears when you receive an FM broadcast in

MPX MODE

so MONO disappears

stereo.
You can improve the reception of weak FM stations by pressing

until MONO appears. This reduces noise while you listen to a weak

MODE

MPX

FM station, but you get monaural instead of stereo sound.

The

TONE/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 “Positioning Speakers” on Page 5).

For an unusual speaker placement, adjust the speaker balanc e as follows:

1. Press

to select the tuner, then press

FM/AM

again to select the

FM/AM

FM band.

2. Press

MPX MODE

so MONO appears. The sound is monaural instead

of stereo, so each speaker delivers the same output.

3. Repeatedly press
appears. Then press

on the front of the receiver until BALANCE

SELECT

L BALANCE R

until you hear the sound coming

equally from each speaker when you are in the listening area.

4. Press

MPX MODE

so MONO disappears from the display.

Basic Operation

Using Headphones

Muting the Receiver

Loudness Control

Bypassing the Sound
Controls

To listen with headphones (not supplied), insert the headphones’ 1/4­inch plug into the receiver’s front panel
speakers and listen with headphones without disturbing others, press

SPEAKER

so only SP appears on the display.

jack. To silence the

PHONES

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 high­volume 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.

To temporarily mute the sound, press
Press

To increase the high and low ranges of sounds for improved audio at a
low listening level, press

again to turn off this feature.

NESS

To bypass your receiver’s sound con trol s (
special sound options) so you can hear the audio at its original tonal
quality, press
this feature.

Note: When you turn off the bypass feature, you will have to re select
any desired special sound options (see “Using Advanced Sound
Options” on Page 22).

again to restore the audio level.

MUTING

LOUDNESS

so DIRECT appears. Press

DIRECT

so LOUDNESS appears. Press

. --MUTING -- appears.

MUTING

BASS, TREBLE, BALANCE

again to turn off

DIRECT

LOUD-

, or any

19

Cassette Deck/VCR Features

Using the VCR/TAPE 1 and
TAPE 2 MONITOR Buttons

Monitoring a
Program Source

You can connect two cassette decks to the receiver. Selecting either

or

TAPE 1

TAPE 2 MONITOR

deck you connected to the receiver’s corresponding (

) jacks.

MONITOR

Press

VCR/TAPE 1

from the cassette deck or VCR you connected to the receiver’s

jacks.

IN

Press

TAPE 2 MONITOR

lets you hear the playback from the cassette

VCR/TAPE 1

or

TAPE 2

. VCR appears on the display. You hear the playback

VCR/TAPE 1

. TAPE 2 appears on the display along with the last
program source you selected. You can hear playback or monitor a
recording from the cassette deck you connected to the receiver’s

MONITOR

jacks. The

TAPE 2 MONITOR REC

from the previously selected source after you press
To return to the previous source, press

jacks continue to output sound

TAPE 2 MONITOR

TAPE 2 MONITOR

again so TAPE 2

TAPE 2

.

disappears.

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 TAPE 2 disappears

from the display.

• Do not press
connected to

TAPE 2 MONITOR

TAPE 2 MONITOR REC

while you are recording on the deck

. Doing so interrupts the recording

for about 1 second.

The receiver sends the audio of the program source you select—

,

DVD/TV, LD/SAT, CD, FM/AM

1

(audio) and
or

LD/SAT

TAPE 2 MONITOR OUT/REC

, the video program is sent to the

jacks. The video program input from

TAPE1REC

The

video jack.

control does not affect the level of the signal going to the

VOLUME

(tuner), or

jacks. If you select

—to the

PHONO

VIDEO OUT TO MONITOR TV 1

or

DVD/TV

VCR/TAPE 1 OUT/REC

VCR/TAPE 1, DVD/TV,

is also sent to

LD/SAT

VCR/TAPE

tape decks.

VCR/

and

VCR1/

2

Dubbing a Cassette Tape

20

You can copy (dub) a cassette tape from one cassette deck to another
using the STAV-3780.

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
nected to the

so TAPE 2 and the last program source you selected appear on

MONITOR

VCR/TAPE 1

TAPE 2 REC

jacks as the source, and the deck you con-

jacks as the recording deck. Then press

TAPE 2

the display. See “Using the VCR/TAPE 1 and TAPE 2 MONITOR But­tons.”

The

control does not affect the level of the signal going to the

VOLUME

tape decks.

Cassette Deck/VCR Features

Playing and Recording
Video Tapes

You can connect two video sources to the receiver. If you connect a VCR
to the

VCR/TAPE 1

and

DVD/TV or LD/SAT

audio and video jacks, you can copy
video cassette tapes from one VCR to another and monitor the dubbing
process.

Playing a Video Tape

To play a video tape, load the tape into the VCR connected to either

,

DVD/TV

, or

TAPE 1

that corresponds to the jack the VCR is connected to.

LD/SAT

appears on the display. Follow the VCR’s instructions to begin
playback. If you connected a monitor to the receiver’s
and

jacks, you can view the program on that monitor.

2

. Press the button (

LD/SAT

VCR/TAPE 1, DVD/TV

VCR, DVD/TV, or

TO MONITOR TV 1

, or

LD/SAT

VCR/

)

Copying a Video Tape

Follow these steps to copy a video tape from one VCR to another
through the STAV-3780.

1. Insert the tape you want to copy into the VCR connected to
or

LD/SAT

.

2. Insert a blank tape (or one you want to record over) into the VCR
connected to the

3. Press

DVD/TV or LD/SAT

VCR/TAPE 1

jack.

.

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 unauthorized recording or duplication of copyrighted material is a
violation of the copyright 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 violation of U.S. copyright laws for a consumer
to record a broadcast television program for private (in-home) viewing.

DVD/TV

21

Using Advanced Sound Options

Your receiver has four special sound options: Dolby Pro Logic Surround,
Dolby 3CH Logic, DSP Effect, and Dolby Virtual. These special options
enhance the sound from a connected program source.

Notes:

• To get the full benefit from programs encoded with Dolby Sur­round Sound, you need a stereo audio/video source.

• Dolby Surround does not operate correctly if the signal passes
through a graphic equalizer. If you connected an equalizer to the

TAPE 2 MONITOR

Dolby Surround signals.

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. Pro Logic is the standard for surround sound systems. Dolby
3CH LOGIC produces a more spacious sound field than is possible with
ordinary stereo playback by sending the rear channel’s sound to the
front left and right speakers. Select
Surround Sound program and do not have rear speakers.

To turn on Dolby Pro Logic Surround or Dolby 3CH Logic, press

until PRO LOGIC appears on the display, then press

LOGIC

the remote control followed by

PHANTOM, or 3CH LOGIC. See “Sound Mode Adjustments (Remote Con-

trol Only)” on Page 23 for information about each of these options.

jacks, do not select

3CH LOGIC when you play a Dolby

CENTER MODE

TAPE 2 MONITOR

when you listen to

SURROUND

to select NORMAL, WIDE,

PRO

on

The tone controls do not work

Note:

when you select

22

VIRTUAL

mode.

Virtual Dolby Surround (Dolby Virtual/SRS)

Virtual lets you enjoy programs encoded with Dolby Surround while
using only two front speakers. SRS creates a surround sound environ­ment from a material recorded in stereo. Select
that has broad frequency range such as classical or live music. Use

for pop and jazz recording for smaller audio session atmosphere.

2

To turn on Virtual Dolby Surround, press
remote control) until the desired option —
appears. Press

VIRTUAL/SRS (VIRTUAL

on the remote control) to turn off this

SRS 1 for the source

SRS

VIRTUAL/SRS (VIRTUAL

on the

VIRTUAL, SRS1, or SRS2 —

feature.

DSP Effect

You can cho ose one of five DSP effects — HALL, JAZZ, DANCE, THE-

1, THEATER 2, or DIALOG. Hall simulates a large concert hall,

ATER

best suited for classical music. Jazz provides the acoustic effects gener­ally heard in jazz clubs. Dance gives the effect of a discotheque. Both
theater modes provide the effect of a movie theater. THEATER 1 sounds
like a large movie theater. THEATER 2 seems like a smaller theater. Try
each setting to find the best effect for your programs. DIALOG enhances
the frequencies of human voice, so you can hear the dialogs more clear­ly. To turn on a DSP effect, press
pears on the display. Press

DSP MODE

appears on the display.

DSP MODE

until the desired option ap-

to turn off the DSP mode. DSP OFF

Using Advanced Sound Options

5-D Theater

5-D Theater provides clearer and more dynamic sound effects by out­putting audio signals through the rear channel to simulate the stereo
sound, compared with a standard surround system which provides only
monaural signals to the rear speakers. Press

5-D THEATER

feature on/off.

DVD 5.1-Channel Input

Together with a multi-channel decoder or DVD player with 5.1-channel
output, you can feed sound to all five speaker channels. The front L/R,
surround L/R, center speaker channels, and the subwoofer have inde­pendent signals for enhanced rich sound. The subwoofer channel con­tains bass sound only and the frequency range is smaller than the other
speaker channels, so it is called 5.1-channel system.

NNNNooootttteeee:

: This feature is active only when you select DVD/TV function.

: :

Press
again. Each time you press the button, the mode alternates between
normal and

To use this feature using the remote control, press

SURROUND

NNNNooootttteeee:::: When you use 5.1CH sound mode, you cannot use

,

SRS

any of these modes,

on the front panel to select the function, then press

DVD/TV

5.1CH operations.

, then press

PRO LOGIC, 5-D THEATER

5.1CH

.

, and

modes. If you press a button for

DIRECT

DVD 5.1CH flashes on the display as a reminder.

to turn this

followed by

DVD/TV

DOLBY VIRTUAL/

DVD/TV

Sound Mode Adjustments
(Remote Control Only)

If you do not use a center speaker,

Note:

the monaural signals are only repro­duced if you select PHANTOM.

Center Mode Setting

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. On the remote control, press

. Each time you press

MODE

CENTER MODE

SURROUND

, the setting changes: NORMAL,

WIDE, PHANTOM, or 3CH LOGIC.
NORMAL — For a small center speaker. The front left and right speakers

play the center-channel bass sounds.

WIDE — For a medium or large center speaker. The center speaker

plays the center-channel bass sounds.

PHANTOM — For no center speaker. All center-channel sound comes

from the front left and right speakers.

3CH LOGIC — For no rear speakers. The rear channel’s sound is sent to

the front left and right speakers.

then

CENTER

23

Using Advanced Sound Options

Notes:

• You must use the remote control to
make these sound adjustments.

• Use the
overall sound level.

control to adjust the

VOLUME

Test Tone

The test tone lets you balance the signal levels between all your speak­ers. To adjust the levels, see “Center Level” and “Rear Level.”

To turn on the test tone, select one of the surround sound modes (

, or 5.1-CH) then press

LOGIC

SURROUND

. Then press

TEST TONE

PRO

. The
receiver sounds a 2-second tone from the front left, center, front right,
and surround (rear) speakers, in sequence.
and

SLch appear as the test tone sounds.

The center test tone sounds and

Cch appears only when you select

FLch, Cch, FRch, SRch,

Normal, Wide, or 3CH LOGIC.

If you select
left, center, and right speakers, in sequence.

Press

3CH LOGIC, the receiver sounds the 2-second tone from the

TEST TONE

again to turn off this feature.

Center Level

Press

– CENTER LEVEL +

to adjust the center speaker sound level.

Rear Levels

Press

– REAR RIGHT LEVEL +

ers’ sound level.

or

– REAR LEFT LEVEL +

to adjust the rear speak-

Subwoofer Level

Press

– SW LEVEL +

works in any sound mode.
NNNNooootttteeee:

: Depending on the sound mode you selected, some speaker level

: :

controls do not work. For example, when you select

RIGHT LEVEL +

to adjust the subwoofer sound level. This control

3CH LOGIC,

or

– REAR LEFT LEVEL +

does not work.

– REAR

Delay Time

In the Dolby Pro Logic Surround modes (except 3CH Logic), the receiver
slightly delays the sound going to the rear speakers. You can change
this delay time from 15 to 30 milliseconds (ms) in 5 ms steps. Adjust the
delay time for the best surround effect. As a general guide, each step
corresponds to 3-5 feet in distance. For example, if the surround speak­ers are 6 feet closer to you than the front speakers, try selecting 20 ms
setting.

Press

SURROUND,

then hold down

DELAY TIME

to change the delay time.

The receiver displays the selected time.

Effect Level

With DSP, you can change the delay time to alter the sound effect from
10 to 90. Press

SURROUND

level.
The effect can vary depending on the source pr ogram.

, then hold down

– EFFECT +

to change the effect

24

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 buttons on the receiver.

CONTROL MODE Buttons

The
The remote control can operate the basic functions of your other audio/

video device. Follow these steps to program the remote control with the
correct manufacturer’s code number for the device.

CONTROL

Control
Mode

MODE

NNNNooootttteeee:::: Some brands have more than one code listed in the charts. If a
code does not work with your device, try another. The listed codes might
not work with all models from the listed manufacturers.

1. Find the code for your device in the following chart.

JVC 004,010
Panasonic 003,009
Pioneer 000,006
Samsung 005,011
Sony 002,008
Toshiba 001,007

CONTROL MODE

buttons select the device you want to control.

DVD Brand Code

LD Brand Code

Kenwood 103
Mitsubishi 100
Panasonic 105,106
Philips 104
Pioneer 100
RCA 107
Sony 101

SAT Brand Codes

Pioneer 200
RCA 201,203
Sony 202

25

Using the Remote Control

VCR Brand Code

Fisher 410,426,412,427,425,420
Goldstar 411,409
Hitachi 408,401,406,436,434
JVC 428,430,429,408,414,431,407
Magnavox 414,408,426,403
Mitsubishi 409,420,421,422,423,424,408,407
Optimus 408,432,433,402,418,419
Panasonic 408,432,433
Pioneer 400
RCA 401,406,408,414,405,413,411,415
Sanyo 410,412,425,435
Sharp 402,418,419
Sony 416,417,404,408
Toshiba 405,409,426
Zenith 403,404,417

TAPE Brand Code

Denon 810
Fisher 813
JVC 802,815
Kenwood 804,807
Onkyo 809,808
Optimus 800
Pioneer 800
Sony 801,806
TEAC 805
Technics 803
Yamaha 811,812,816

26

Using the Remote Control

CD Brand Code

Denon 309
JVC 303
Kenwood 310,321,311
Marantz 323,312,324
Onkyo 320,308,307
Optimus 300
Philips 312,322
Pioneer 300
RCA 302,319,313
Sanyo 313
Sony 301,316,317,318
TEAC 305,306,327,324,325
Technics 304,326
Yamaha 315,314,328

TV Brand Code

GE 601,608,610,611,617,602,628,618
Goldstar 610,623,621,602
Grandiente 635
Hitachi 606,610,624,625,618
JVC 613,623
Magnavox 607,610,603,612,629
Mitsubishi 609,610,602,621
Panasonic 608,622,607
Philips 607
Pioneer 600
RadioShack 610,623,621,602
RCA 601,610,615,616,617,618
Sanyo 621,614
Sharp 602,619,627
Sony 604
Toshiba 605,602,626,621
Zenith 603,620

27

Using the Remote Control

CATV Brand Code

Jerrold 711,701,702,712,704,713,703,714,716,715
Pioneer 700
S.A. 705,706,708,709
Zenith 707,717,710

MD Brand Code

Denon 904
Kenwood 903
Pioneer 900
Sharp 902
Sony 901

2. While holding down

, press the button for the the device you

PRESET

want to set. The PRESET RECALL indicator lights.
The labels on the

CONTROL MODE

buttons are for your convenience
only. You can program any device to any button. For example, if
you do not have a DVD player but you wish to program your sec­ond VCR, use

to enter the code for second VCR.

DVD

3. Point the remote control to the device desired and enter the three­digit code. The remote control sends power on/off signal for the
device. If the code is correct, the device should turn on or off.

If the device does not function, repeat Steps 2 an d 3 a nd try other
codes for the manufacturer. If it still does not function, you must
use the original remote control supplied with your device.

NNNNoooottttes

es::::

eses

• The remote control keeps the code you programmed for short peri­ods of time, allowing you to replace the batteries without losing
the codes. However, if the remote control fails to operate after you
replace the batteries, re-enter the codes.

• Y ou can clear all the programmed codes if necessary. Press

DISC

, and

(on the top row, not

POWER

RECEIVER POWER

PRESET

at the bottom)
at the same time for about three seconds until the PRESET
RECALL indicator blinks three times.

,

28

TUNER

CONTROL

MODE

Receiver/
Amplifier
Buttons

Receiver/Amplifier Operation

Before operation, press

STATION

BAND

TUNING
MPX
CLASS
DIRECT ACCESS

Number Buttons

– SW LEVEL+

– REAR RIGHT LEVEL+

TEST TONE

– REAR LEFT LEVEL+

CENTER MODE

–

CENTER LEVEL

DELAY TIME

–

SURROUND
PRO LOGIC
DSP MODE

MUTING

VIRTUAL

5-D THEATER

+

RECEIVER POWER
FUNC

DIRECT

+

EFFECT

MASTER VOLUME

Tunes to the next higher or lowe r memory location.
Selects the AM or FM tuner band.
Tunes to radio stations.
Selects the FM reception mode.
Selects the memory class.
Allows direct input of the station frequency.
Select the corresponding memory station. During Direct Access,

enter the station’s frequency.
Controls the sound level of the subwoofer when pressed after

SURROUND.
Controls the sound level of the rear speakers whe n pr essed afte r

SURROUND

Sounds test tones from each speaker when pressed after

ROUND

Controls the sound level of the rear speakers whe n pr essed afte r

SURROUND

Selects among the three center modes or 3CH Logic when
pressed after

+

Controls the sound level of the center speaker when pr essed af­ter

SURROUND

Sets the rear-channel delay for Dolby Pro Logic Surround pro­grams when pressed after

Adjusts the level of DSP mode.
Sets the remote control into the surround setup mode.
Selects Dolby Pro Logic Surround.
Selects the DSP mode; HALL, JAZZ, DANCE, THEATER 1, or

THEATER 2.
Silences the receiver. Press again to restore the sound to its pre-

vious level.
Selects virtual surround mode; DOLBY VIRTUAL, SRS1, or

SRS2.
Selects 5-D Theater mode.

–

Adjusts the system’s volume.
Turns the receiver on and off.
Selects a program source (VCR, PHONO, tuner, CD, DVD/TV , o r

LD/SAT). Repeatedly press until the display shows the desired
program source.

Bypasses the receiver’s audio control circuits. Press again to re­store the previous setting s .

to select receiver/amplifier operation.

TUNER

.

.

.

SURROUND in Dolby Pro-Logic mode

.

Using the Remote Control

SUR-

.

SURROUND

.

29

Using the Remote Control

CONTROL

MODE

CD

CD Player

Buttons

CONTROL

MODE

TAPE

Cassette
Deck
Buttons

CD Player/MD Recorder Operation

Note: You must have connected the CD player to both of your receiver’s

CONTROL OUT

player/MD recorder into the remote control for these functions to work.
Before operation, press

recorder) to select CD player operation.

POWER

/ |

|

/

Number Buttons

+10

DISC (CD player only)

and audio jacks or programmed the cod e fo r your CD

(or the one connected to your CD player/MD

CD

Turns the CD player/MD recorder on and off.
Returns to the beginning of the current track or ad vances to the

next track.
Rapidly advances backward/forward within a track.
Press to pause play. Press again to resume.
Stops playback.
Plays the disc.
Selects track.
Enters 10 of the track number. For example, to enter track 15,

press
Selects discs in a multi-play CD changer. (

with some CD players.)

then 5 (might not work with some CD players).

+10

DISC

might not work

Cassette Deck Operation

Note: You must have connected the cassette deck to both your
receiver’s

CONTROL OUT

cassette deck into the remote control for these functions to work.
Before operation, press

deck) to select cassette deck operation.
The remote control operates a single cassette deck and Deck 2 on a dual

cassette deck. To operate Deck 1 on a dual cassette deck, use the but­tons shown in parentheses (these buttons do not work with all decks).

POWER

)

(

7

) / (9)

(

8

)

(

0

)

(

+10

)

(

DISC

and audio jacks or programmed the code for your

(or the one connected to your cassette

TAPE

Turns on/off the cassette deck.
Press to play the other side of an auto-reverse cassette deck.
Quickly locates and plays the beginning of recorded mat erial dur-

ing play .
Or, when the tape is stopped, rapidly searches forward or back-

ward to locate a specific section of the tape.
Press to temporarily stop playback/recording. Press again to re-

sume.
Stops playback/recording.
Press to start normal playback.

30

DVD

CONTROL

MODE

DVD

Buttons

Using the Remote Control

DVD Player Operation

Note: You must have programmed the code for your DVD player into the
remote control for these functio ns to work.

Before operation, press
select DVD player operation.

POWER

|

/ |

/

DISC

Turns on/off the DVD player.
Press to switch the audio input. On some DVD players, pressing

this button switches the angle.
Returns to the beginning of the curre nt chapter/tr ack or adv ances

to the next chapter/track.
Rapidly advances backward/forward within a chapter/track.
Press to pause play. Press again to resume. On some DVD play-

ers, press to pause the playback so you can view a single frame
(freeze-frame operation).

Stops playback.
Plays the disc.
Turns the menu on/off.

The number buttons and
DVD players you are using. The two basic systems are:

A. Some models use the buttons as the normal number buttons.

Number Buttons

+10

Selects chapter/track.
Enters 10 of the chapter/track number. For example, to enter

chapter/track 15, press

B. Some models use the buttons as the cursor buttons.

2
4
5
6
8
9
0
+10

Up arrow (▲)
Left arrow( )
ENTER
Right arrow ( )
Down arrow (▼)
MENU
RETURN
TITLE

(or the one connected to your DVD player) to

DVD

work differently depending on the type of

+10

then 5.

+10

31

Using the Remote Control

CONTROL

MODE

LD

VCR

CONTROL

MODE

LD Player
Buttons

VCR
Buttons

LD Player Operation

Note: You must have programmed the code for your LD player into the
remote control for these functio ns to work.

Before operation, press

(or the one connected to your LD player) to

LD

select LD player operation.

POWER

/ |

|

/

Number Buttons

+10

DISC

Turns the LD player on and off.
Returns to the beginning of the curre nt chapter/tr ack or adv ances

to the next chapter/track.
Rapidly advances backward/forward within a chapter/track.
Press to pause play. Press again to resume. On some LD play-

ers, press to pause the playback so you can view a single frame
(freeze-frame operation).

Stops playback.
Plays the disc.
Selects chapter/track.
Enters 10 of the track number. For example, to enter track 15,

press

then 5 (might not work with some LD players).

+10

Selects the side of a disc.

VCR Operation

Note: You must have programmed the code for your VCR into the
remote control for these functio ns to work.

Before operation, press
VCR operation.

POWER

CHANNEL

/

)

(

DISC

Number Buttons

+10

Turns on/off the VC R.
Press to change the VCR’s tuner channel.
Press to switch the VCR antenna output, VCR’s t uner output or

direct signal from antenna to use TV’s tuner.
Quickly locates and plays the beginning of recorded mat erial dur-

ing play .
Or, when the tape is stopped, rapidly searches forward or back-

ward to locate a specific section of the tape.
Press to temporarily stop playback/recording. Press again to re-

sume. On some VCRs, press to pause the playback so you can
view a single frame (freeze-frame operation).

Stops playback/recording.
Press to start normal playback.
Selects channel directly (might not work with some VCRs).
With some VCRs, you might need to press this to enter the chan-

nel you selected with number buttons.

(or the one connected to your VCR) to select

VCR

32

TV

CONTROL

MODE

Using the Remote Control

TV and CATV Operation

Note: You must have programmed the code for your TV or CATV into
the remote control for these functions to work.

Before operation, press
select TV/CATV operation.

POWER

CHANNEL
TV FUNC

TV VOL

(TV only)

Number Buttons

On some models, the functions of the buttons are different.

POWER

|

TV/
CATV/
SAT

|

Number Buttons

DISC

(or the one connected to your TV or CATV) to

TV

Turns on/off the TV or CATV.
Press to change the tuner channel.
Selects the TV’s input mode, antenna or line input.
Adjusts the volume.
Selects channel directly. On some TVs, you might need to press

after entering the channel number.

DISC

Turns the power on/off .
Moves cursor left.()
Moves cursor up.(▲)
Moves cursor right. ( )
Moves cursor down. (▼)
Decreases volume.
Increases volume.
Selects the TV’s input mode, antenna or line input.
ENTER - enters the selected cursor position.
Selects channel directly.
Turns the menu on/off.

Satellite Receiver Operation

Note: You must have program med the c ode f or yo ur SAT rece iv er to the
remote control for these functio ns to work.

Before operation, press
receiver) to select SAT receiver operation.

POWER

|

|

Number Buttons

DISC

(or the one that you connected to your SAT

TV

Turns the power on.
Moves cursor left.()
Moves cursor up.(▲)
Moves cursor right. ( )
Moves cursor down. (▼)
Turns the power off.
ENTER - enters the selected cursor position.
Selects channel directly.
Turns the menu on/off.

33

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

Power does not turn on. Power cord is disconnected. Plug in the power cord.

Protection circuit is activated. Unplug the power cord, then plug it in again.

The receiver does not respond
to button presses.

No sound. Incorrect connections. Check and correct the connections.

No picture when you select a
video source.

High noise level. Station not correctly tuned. Adjust tuning.

Automatic tuning does not stop
when searching for stations.

Cannot make copies of video
tapes.

Remote control does not work. Remote is set to other device. Press the

Remote does not control cas­sette deck or CD player.

Static discharge has affected the re­ceiver.

The mute function is activated. Press
The volume is turned down. Turn up the volume.
Speaker wires are disconnected. Connect the speaker wires.
Speakers are turned off. Press
TAPE 2 function is engaged. Press
The selected video source is not set

correctly.
Incorrect connections. Check and correct the connections.

Antenna not connected. Connect the antenna.
FM antenna still coiled or is not

pointing in the correct direction.
AM loop antenna not pointing in the

correct direction.
Noise is coming from another electri-

cal appliance.
Stations are too weak. Use a better antenna.

Tapes are protected by a copy pro­tection method.

Video connections are incorrect. Check and correct the connections.

Code is not correctly set. Try re-programming the remote control.
Batteries are weak. Replace the batteries.
Cassette deck or CD player is not

compatible.
Control cable is not plugged in. Properly connect the control cable.
Audio cables are not plugged in. Properly connect the audio cables.

Unplug the power cord, then plug it in again. (If
static electricity is a problem, use the remote control
as much as possible.)

.

MUTING

SPEAKER

TAPE 2

Correct the problem with the selected video source.

Stretch both ends of the antenna taut and reposition
the antenna.

Adjust the AM loop antenna.

Try using an AC line noise filter to reduce the noise.

You cannot make a good copy.

control.

The feature only works with Optimus Professional
Series components.

so SP A appears on the display.

so TAPE 2 clears from the display.

CONTROL MODE

button for the device to

34

Care and Maintenance

Your Optimus STA V-3780 Audio/Video Receiver is an example of superior design and craftsmanship. The following
suggestions 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 and its remote control only in normal tem­perature environments. Temperature 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
control. 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.

35

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 of f yo ur 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.

36

Specifications

Amplifier

Front Channel Average Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Watts per Channel into 8 Ohms

With No More than 0.09% Total Harmonic Distortion

Measured Pursuant to the Federal T rade Commission’s

Trade Regulation Rule on Amplifier Output Power Claims

Front Channel Surround Power Output . . . . . . . . . . . . . . . . 100 Watts per Channel (1 kHz, 0.9% THD, 8 Ohms)

Center Channel Surround Power Output . . . . . . . . . . . . . . . . . . . . . . . . . 100 Watts (1 kHz, 0.9% THD, 8 Ohms)

Continuous Rear Surround Power Output . . . . . . . . . . . . . . 100 Watts per Channel (1 kHz, 0.9% THD, 8 Ohms)

Input Sensitivity/Impedance

Phono Overload Level (0.1% THD, 1 kHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mV

Frequency Response

Output Level/Impedance

Tone Controls

Signal-to-Noise Ratio (IHF, Short Circuited, A Network)

Signal-to-Noise Ratio (EIA, at 1 Watt, 1 kHz)

Phono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.8 mV/47 kOhms

CD, DVD/TV, LD/SAT, VCR/TAPE 1, TAPE 2 Monitor . . . . . . . . . . . . . . . . . . . . . 200 mV/47 kOhms

Phono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Hz to 20,000 Hz ±0.3 dB

CD, DVD/TV, LD/SAT, VCR/TAPE 1, TAPE 2 Monitor . . . . . . . . . . . . . . 5 Hz to 100,000 Hz +0/–3 dB

VCR/TAPE 1 REC, TAPE 2 Monitor REC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mV/2.2 kOhms

Bass

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±

Treble

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±

Loudness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7 dB/+6 dB (100 Hz/10 kHz)

Phono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 dB

CD, DVD/TV, LD/SAT, VCR/TAPE 1, TAPE 2 Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 dB

Phono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 dB

CD, DVD/TV, LD/SAT, VCR/TAPE 1, TAPE 2 Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 dB

From 20 to 20,000 Hz,

8 dB (150 Hz)
8 dB (10 kHz)

Video Section

Input Sensitivity/Impedance VCR/TAPE 1, DVD/TV, LD/SAT . . . . . . . . . . . . . . . . 1 Volt Peak-to-Peak/75 Ohms

Output Level/Impedance VCR/TAPE 1, MONITOR TV . . . . . . . . . . . . . . . . . . . . . . . 1 Volt Peak-to-Peak/75 Ohms

Frequency Response VCR/TAPE 1, DVD/TV, LD/SAT to Monitor . . . . . . . . . . . . . . . . . . 5 Hz to 7 MHz +0/–3 dB

Signal-to-Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 dB

Crosstalk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 dB

37

Specifications

FM Tuner

Frequency Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87.5 to 108 MHz

Usable Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mono: 13.2 dBf, IHF (1.3 µV/75 Ohms)

50 dB Quieting Sensitivity

Signal-to-Noise Ratio

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

Mono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20.2 dBf

Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38.6 dBf

Mono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 dB (at 85 dBf)

Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 dB (at 85 dBf)

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280 Watts, 410 VA (UL)

AC Outlet Ratings Switched . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Total 100 Watts (0.8 Amps) Maximum

Dimensions (HWD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 lb 14 oz

1

/4 × 169/16 × 143/4 Inches

(158 × 420 × 374 mm)

(9 kg)

Specifications are typical; individual units might vary. Specifications are subject to change and improvement with­out notice.

38

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 con­trol or indicator is discussed. To find a description for the buttons on the remote control, see “Using the Remote Control” on
Page 25.

Control Page

5-D THEATER

TONE/BALANCE

CD

CLASS

DIRECT

DOLBY PRO LOGIC

DSP MODE

DVD/TV

FM/AM

LD/SAT

LOUDNESS

MEMORY

MPX MODE

MUTING

PHONES

PHONO

POWER

SELECT

SPEAKERS

STATION

TAPE 2 MONITOR

TUNING

TUNING SELECT

VCR/TAPE 1

VIRTUAL/SRS

VOLUME

23
16, 18
16
18
19
22
22
16
17
15
19
18
18
19
19
16
16
16, 17
16, 19
18
16, 20
17
17
16, 20
22, 24
16

39

This product is warranted by RadioShack against manufacturing defects in material and workman-

Limited Tw o-Year Warranty

ship under normal use for two (2) years from the date of purchase from RadioShack company­owned 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 LIABIL­ITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RE­SPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE
OR PERFORMANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WAR­RANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVE­NIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN AD­VISED OF THE POSSIBILITY OF SUCH DAMAGES.
Some states do not allow the limitations on how long an implied w arranty lasts or the exclusion of in­cidental or consequential damages, so the above limitations or exclusions may not apply to you.
In the event of a product defect during the warranty period, take the product and the RadioShack
sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, un­less otherwise provided by law: (a)correct the defect by product repair without charge for parts and
labor; (b) replace the product with one of the same or similar design; or (c) refund the purchase
price. All replaced parts and products, and products on which a refund is made, become the prop­erty of RadioShack. New or reconditioned parts and products may be used in the performance of
warranty service. Repaired or replaced parts and products are warranted for the 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

A Division of Tandy Corporation

RadioShack

Fort Worth, Texas 76102

04A99 Printed in Indonesia

<ARB7194-A>