Optimus STAV-3560, 31-3036, STAV-3570, 31-3035 User Manual

e

31-3035/3036

e

Cat. No.

Digit al Sy nthesiz
Audio/Video
Surround Receiv

STAV-3560/3570

POWER

DOLBY SURROUND

P R O L O G I C

PHONES

STAND BY

POWER

DOLBY SURROUND

P R O L O G I C

PHONES

STAV-3560 DIGITAL SYNTHESIZED AUDIO/VIDEO STEREO RECEIVER

SFC

DOLBY

MODE

PRO LOGIC

MEMORY

FM MONO

MEMORY

FM MONO

DOLBY

PRO LOGIC

4-CHANNEL

EQUAL POWER

OUTPUT

4-CHANNEL

EQUAL POWER

OUTPUT

SPEAKERS

AB

STAV-3570 DIGITAL SYNTHESIZED AUDIO/VIDEO STEREO RECEIVER

SFC MODE

SPEAKERS

AB

TREBLE

TREBLE

VOLUME

BALANCE

L

VOLUME

BALANCE

L

R

R

TUNER

TUNER

CLASS

FM/AM

CLASS

FM/AM

LD/DVD

TAPE 1

VCR

LD/DVD

VCR

TAPE 1

PHONO

SUPER
BASS

OSR

PHONO

SUPER

BASS

OSR

STATION

TUNING

STATION

TUNING

CD

TAPE 2

MONITOR

CD

TAPE 2

MONITOR

MIN MAX

BASS

MIN MAX

BASS

Owner’s Manual

Please read before using this equipment.

Introducing the Optimus STAV-3560/3570

Your Optimus STAV-3560/3570 Digital Synthesized A/V Surround Receiver is
the perfect control center for your audio/video system. It combines 60 watts-per­channel (STAV-3560) or 100 watts-per-channel (STAV-3570) of clean power
with modern stylingl And, it provides connections for one tape deck, one audio/
video source, one more tape deck or audio/video playback source, a turntable,
a CD player, and a video monitor.

Digital-Synthesized Tuner

Automatic Tuning

30 Memory Locations

Super Bass

Tape Mo ni t ori ng

Built-In Protection Circuits

Remote Control

Your receiver also has four special sound options.

Sound

delivers movie theater sound for audio/video programs (especially those
encoded with Dolby Surround Sound signals).
wider sound field than ordinary playback.

Studio Effect

of a recording studio, adding extra richness to your music.

Dolby Pro-Logic Surround

Dolby 3CH Logic

provides a

simulates the ambiance

Simulated Surround

gives you a surround-sound effect even when you listen to monaural sources.
Additional features include:
Precisely tunes to AM and FM stations.
Searches for the next available AM/FM station.
Let you store and recall the frequencies for up to 30 AM/FM stations.
Creates a richer, fuller sound by enhancing the bass portion of the program.
Lets you listen to the actual recording as you record, if your tape deck has a

tape-monitoring feature.
Turn off the receiver to help prevent damage if a power surge or short circuit

occurs.
Lets you use a single remote control for the receiver and other compatible com-

ponents connected to the receiver.

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

Serial Number:_____________________________________________

Note to the Cable TV System Installer:

This reminder is provided t o call the CATV system installer ’s attention to article 820-40 of the National E lectrical 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.

Additionally licensed under one or more of the following Patents: U.S. Number 3,959,590; Canadian Numbers 1,004,603 and 1,037,877.

Dolby, Pro Logic, and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.

Manufactured under license from Dolby Laboratories Licensing Corporation.

1996 Tandy Corporation.



Optimus is a registered trademark used by Tandy Corporation.

RadioShack is a trademark used by Tandy Corporation.

All Rights Reserved.

3

IMPORTANT SAFETY INSTRUCTIONS

s

d

-

r

-

,

e

e

e

g

d

-

-

o

-

.

.

e

f

-

-

r

-

-

-

.

,

y

.

y

-

-

y

f

-

s

l

n

d

,

s

(

)

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

To prevent fire or shock hazard, do not expose this sys­tem to rain or moisture.

CAUTION

CAUTION

RISK OF ELECTRIC SHOCK.

DO NOT OPEN.

: TO REDUCE THE RISK OF

!

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

This symbo l is intended to alert y ou to the
presen ce of uninsulated d angerous 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.

This s ymb ol is in te nd ed t o inf or m y ou th at i m­portant operating and maintenance instruc-

!

tions are included in the literature acc­ompanying this system.

WARNING: T O REDUCE THE RISK OF
FIRE OR ELECTRIC SHOCK, DO NOT
EXPOSE THIS APPLIANCE TO RAIN
OR MOISTURE.

CAUTION

Power Line s —L ocat e an outdo or ante nna aw ay from

power li ne s.
Nonuse Periods —Unplug the receiver’s power cord

when you will not use it for extended periods.
Outdoor Antenn a Groun ding—If an ou tsid e ant enn a

or cable sy stem is connecte d 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.

Antenna
Lead-In
Wire

Ground Clamp

Antenna
Discharge Unit

Electric
Service
Equipment

NEC -- National Electrical Code

(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 i
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 an
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 instruc tions.
Cleaning — Unplug t his pr oduct f rom th e wall ou tlet b efore cleani ng. Us e only a damp cloth fo

cleaning. Do not use liquid or aerosol cleaners.
Attachments — Do not use attachments/accessories not recommende d by the product manufac

turer, as they might create a hazard.
Water and Moisture — Do not u se th is pr oduc t nea r wat er (f or examp le, near a b atht ub, washbo wl

kitchen sink, or laundry tub; in a wet basement; or near a swimming pool).
Accessories — Do not place this product on an unstable cart, stand, tripod, bracket, or table. Th

product may fall, causing serious injury to a child or adult, and serious damag e to the product. Us
only with a cart, stand, tripod, bracket, or table recommended by the manufacturer or sold with th
product. Follow the manufacturer's instructions for mounting, and use a recommended mountin
accessory.

Carts — Move the product on a cart carefully. Quick stops, excessive force, an
uneven surfaces may cause the product/cart to overturn.

Ventilation — Slots an d openings i n the cab i n et p r ov id e ventilat i on , ensure r e li
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. D
not pl ace the product in a built-in bookcase or rack unless it pr ovides proper ven
tilat ion as specified by the manufacturer.

Power Sources — Operate th is pr oduc t usin g onl y the p ower sourc e ind icat ed on i ts marki ng la bel
If you are not sure of your home's power type, consult your product dealer or local power company

Polariz ation — This pro duct is eq uipp ed wi th a po lar ize d AC li ne pl ug ( a plu g hav ing on e b lad
wider than the other). This plug will fit in the power outlet only one way. This is a safety feature. I
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.

Power-Cord Protection — Route power-supply cords so they are not likely to be walked on o
pinched by items placed on or against them, paying particular attention to cords at plugs, conve
nience receptac les, and the point wher e they exit from the product.

Lightning — For ad de d p r ot ec t io n for th is product du ring a ligh t ni ng storm, o r w he n i t is left un at
tended an d unus ed fo r lo ng per i od s of t im e, un plug it fro m t he wall ou t le t and di sco nn ect the an te n
na or cabl e s yst e m. This w il l prev en t d am ag e to t h e p rodu ct du e t o li gh t ni ng an d p ow er- l ine s ur g es

Overloading — Do not ov erl oad wal l outle ts, ex tens ion cor ds, or in teg ral conv enie nce r ecepta cles
as this can result in a risk of fire or ele c tric shock.

Objects and Liquids — Never push objects of any kind into this product through openings, as the
may to uch da nger ou s volt ag e poin ts or short out pa rts that coul d resu lt in a fire or ele ctric sh ock
Never spill liqui d of any kind on the product.

Servicing —Do not attempt to service this product yourself, as opening or removing covers ma
expo se yo u to dangero us vo lt age or oth er hazards . Ref e r al l servicin g t o qu al if i ed se r v ic e pe r s on
nel.

Damage Requiring Service — Unplug this product from the wall outlet and refer servicing t o qual
ified s ervice pe rsonnel 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 expo sed to rain or water.

• If the product does not operate normally by following the operating instructions. Adjust onl
those controls that are covered by the operating instructions, as an improper adjustment o
other controls may result in damage and will often require extensive work by a qualified techni
cian to restore the product to normal operation.

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

• When the product exhibit s a distinct change in performance.

Replacement Parts — When r eplacement parts are requir ed, be sure the service technician use
replacement parts specified by the manufacturer or having the same characteristics as the origina
part. Unauthorized substitutions may result in fire, electric shock, or other hazards.

Safety Check — Upon completion of service or repairs to this product, ask the service technicia
to perform safety checks to determine that the product is in proper operating condition.

Wall or Ceiling Mount — The produc t shou ld be mount ed t o a wall or ce iling only as rec ommen de
by the manufacturer.

Heat — The product should be situated away from heat sources such as radiators, heat registers
stoves, or other products (including amplifier s ) that produce heat.

Contents

reparing Your Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

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

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

Connecting Program Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Connecting the Antennas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Using One Remote Control for More Than One Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Installing the Remote Control’s Batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Using the AC Power Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Connecting to AC Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

asic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Tuning the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Using FM Mono . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Balance Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Muting the Receiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Using Headphones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

assette Deck/VCR Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Using the VCR/TAPE 1 Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Using the TAPE 2 MONITOR Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Recording a Program Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Dubbing a Cassette Tape. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Playing and Recording Video Tapes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

sing Advanced Sound Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Sound Mode Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

sing the Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

roubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Returning Controls to Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

are and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

he FCC Wants You To Know . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

pecifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

ndex to Features by Control Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5

Prepar in g Your Rec ei ver

a

e

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

Positioning Speakers

L

Halfway Point

b

Person in Listening Area

• 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 par­ticularly important for the center
speaker since it is usually located
closest to the TV.

Between Speak

a=b

R

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, or 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
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 A or B speakers at the
front of your listening area, and place the surround speakers behind or to the
sides of the listening point (see “Using Advanced Sound Options”). 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.

hole

in

Left Front

Center Channel

Listening

Area

Rear Channel

Right Front

Rear Channel

Preparing Your Receiver

d

Right

Left

F

onnecting Speakers

Follow these guidelines when you select
and connect speakers.

• Only connect speakers that are rated
at between 8 and 16 Ohms.

• Be sure you properly connect all
speakers.

• Do not connect t wo pairs of speakers
to a single set of terminals (A or B) at
the same time. When you use two
pairs of speakers, conne ct one set to

Speakers A

and one set to

• Realistic, Optimus, and other high­quality speakers have color-coded
speaker terminals (red for positive
polarity and black for negative polar­ity). Use these color-coded terminals
as a guide to hel p 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 spe aker
wire you need.

Speakers B

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 Stran

Wire Strands

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

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

Speaker Wire

end of each conductor.

Conductor

Conductor

Wire Strands

Wire Strands

3

/4 inch of insulation from the

ront B Speakers

Right

Front A Speakers

Left

Center Speaker

AUDIO

IN

Amplified

Subwoofer

Subwoofer

Amplifiers

PRE OUT

A

B

SUB

WOOFER

R

R L

FRONT SPEAKERS

CENTER

SPEAKER

L

R

R

SPEAKERS

A

B

L

L

REAR

Right LeftSurround Speakers

7

Preparing Your Receiver

Connecting the A and B Speakers

Note:

Be sure you connect the
receiver’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

SPEAKERS A

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

2. Press the receiver’s
other conductor’s end into the small hole. Pull back the lever 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 through 4 to connect the left speaker to the receiver’s

SPEAKERS A L

Repeat this entire process to connect a second pair of speakers to the

SPEAKERS B

terminals.

terminals.

terminals.

FRONT SPEAKERS A R

FRONT SPEAKERS A R (–

(+) red lever and insert the

) black lever and insert the

FRONT

FRONT

FRONT

Connecting Su rround-Sound Speakers

Y ou can connect a pair of speakers to the receiver’s
for surround-sound programs. Follow the steps in “Connecting the A and B
Speakers.”

REAR SPEAKERS

terminals

Connecting the Center Speaker

The center speaker gives additional ambience to surround sound. Connect the
center speaker to the
necting the A and B Speakers.”

CENTER SPEAKER

terminals. Follow the steps in “Con-

Connecting a Subwoofer Amplifier (STAV-3570 Only)

Y our 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 earth­quake, the bone-jarring percussion of a cannon, and more.

To use this output, simply connect it to an amplified subwoofer’s line-level input
or to an amplifier connected to a subwoofer.

RadioShack stores sell a variety of suitable subwoofers and amplifiers.

Preparing Your Receiver

onnecting Program Sources

R

L

REC PLAY

REC

INPUT OUTPUT

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

LINE

R

OUT IN IN

VIDEO

REC

PLAY

IN OUT IN IN IN

L

L

R

R

GND

L

TAPE2

MONITOR

R

R

L

REC PLAY

REC

INPUT OUTPUT

PHONO

L

R

L

R

L

PLAY

L

LINE

VCR/

TAPE 1

R

R

L

R

L

R

PLAY

LD/

DVD

L

TO MONITOR TV

VIDEO OUT

L

R

CD

CONTROL

OUT

L

R

R

L

OUT PUT

L
R

Turntable

Cassette Deck

Note: Use shielded audio cables with
phono connectors for all audio connec­tions.

Note:

If you place the cassette deck
directly 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 of the receiver or locate it away
from the receiver.

CD

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.

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

PHONO

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

GND

terminal.

Connecting Cassette Deck(s)

You can connect cassette decks to the

VCR/TAPE 1

and the

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

T APE 2 MONITOR PLAY
VCR/TAPE 1 OUT

jacks, and connect the cassette deck’s input jacks to the

(audio) or

TAPE 2 MONITOR REC

jacks.

You can connect a third cassette deck (for playback only) to the
(audio) jacks.

T APE 2 MONITOR

VCR/TAPE 1 IN

LD/DVD IN

(audio) or

Connecting a CD Player

To connect a CD player to the receiver, connect the CD player’s left and right

L

output jacks to the receiver’s

and

R CD IN

jacks.

9

Connecting Video Sources

/

Preparing Your Receiver

Note:

If your VCR is monaural, use a Y­adapter (available at your local
RadioShack store) to connect the VCR’s

L

audio output to both the

and R audio

inputs on the receiver.

IN OUT IN IN IN

L

R

PHONO

V

V

V

V

OUT

IN

If you connect two video sources such as VCRs, laser disc (LD) players, or dig­ital video disc (DVD) players to your receiver, you can use the receiver to switch
between viewing the sources. You can also use the receiver to easily record
from the video sources to the source connected to

REC

OUT IN IN

VIDEO

PLAY

TO MONITOR TV

VIDEO OUT

v

VCR/TAPE 1

.

L

OUT

R

TAPE2

MONITOR

GND

R

VIDEO

INPUT OUTPUT

L

REC PLAY

REC

L

AUDIO

L

R

R

PLAY

VCR/

TAPE 1

L

LD/

CD

DVD

R

R

R

L

R

AUDIO

OUT

CONTROL

v

L

L

V

VIDEO

OUT

V

VIDEO

IN

L

R

VCR

VCR

Connect phono cables from a VCR’s audio outputs to the receiver’s

LD/DVD IN

or

TAPE 1 OUT

(audio) jacks. Then connect phono cables from the receiver’s

(audio) jacks to the VCR’s audio input jacks.

LD/DVD Player

TV Monito

VCR/TAPE 1

VCR

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

VCR/TAPE 1

receiver’s

LD/DVD VIDEO IN

or

VCR/TAPE 1 VIDEO OUT

jacks. Then connect video cables from the

jack to the VCR’s video input.

Connecting a Video Monitor

The monitor (or TV with baseband video input) you connect to the
terminal can monitor any program you connect to the receiver’s

LD/DVD
MONITOR TV

input jacks. Connect a video cable from the receiver’s

jack to the monitor’s video input.

VIDEO OUT

VCR/TAPE 1

VIDEO OUT TO

or

Preparing Your Receiver

AM L

Outd

onnecting the Antennas

oop Antenna

FM

UNBAL 75

GND

AM

LOOP ANTENNA

GND

In many cities, the supplied indoor AM loop and FM antennas provide adequate
reception.

AM Antennas

Assemble the included 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. Then
attach the antenna wires to the

AM LOOP ANTENNA

two terminals).
Place the antenna on a flat surface and rotate it for the best AM reception.
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.

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.

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

and

GND

terminals (bottom

oor AM Antenna

UNBAL 75

AM Loop Antenna

Note:

For the best results, use 75-ohm
coaxial cable to connect an outdoor
antenna to the receiver.

ANTENNA

FM

GND

LOOP ANTENNA

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.

You can also use a RadioShack shortwave antenna kit (Cat. No. 278-

758), which makes an excellent outdoor AM antenna.

AM

GND

Connect the outdoor AM antenna wire to the receiver’s AM terminal, as shown.

FM Antennas

Connect the supplied FM antenna to the

FM UNBAL 75

as shown.

FM Antenna

FM

UNBAL 75

For better FM reception, you can also use a rabbit-ear TV antenna (for indoor
use only) or an outdoor VHF TV antenna. 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 outdoor antennas and antenna connection accesso­ries.

Ω

terminal and extend it

AM

LOOP ANTENNA

GNDGND

10

Preparing Your Receiver

I

r

g

FM Outd

d

Warning:

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

Caution:

only touch the

The cable’s shielding should

GND

termi nal.

For the best radio reception, use an outdoor antenna. Follow these steps to
connect an outdoor FM antenna to the receiver using 75Ω 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

FM UNBAL 75

Ω

terminal.

1

2. With a stripping tool, remove about 1

/2 inches of the 75Ω cable’s outer

insulation to expose the cable’s shielding.

3. Fold back the insulation from the inner insulation.

4. Remove about 1 inch of the inner insulation from around the center wire.

nner Insulation

Outer Insulation

Shieldin

5. Pull the shielding to one side. Connect the center wire to the receiver’s

UNBAL 75

and connect it to the

Ω

terminal. Twist the shielding to secure any loose wire strands,

GND

terminal.

oor Antenna

Center Wi

FM

Shielde

Core

FM

UNBAL 75

AM

LOOP ANTENNA

GNDGND

Note: Grounding is not necessary for reception, but we recommend it to avoid
damage from lightning when you use an outdoor FM antenna and for better FM
reception. Use a separate piece of thick polyvinyl insulated wire to connect the

GND

terminal to an earth ground such as a metal cold-water pipe.

Warning: Never connect a wire to a gas pipe for grounding since sparks might
ignite the gas.

11

Preparing Your Receiver

a
n

Using One Remote Control

or More than One Unit

Note:

component’s
component’s remote sensor does not
function.

When you plug the cable into a

OUT

CONTROL

Receiver

Remote
Control

CONTROL IN

CONTROL

Other Component
with OSR Mark

To the CONTROL IN j
of Another Compone
Having the OSR Mark

jack, that

IN

OUT

nstalling 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.”

Note:

You must connect the audio cables between the receiver and the
other audio accessory to use your receiver’s remote control to ccontrol
the accessory.

2. Connect the cable supplied with the CD player, VCR, or cassette deck
between 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

IN

connections as shown.

CONTROL OUT

and

CONTROL

The remote control uses two AA batteries (not included). Fo r the longest battery
life, we recommend alkaline batteries (such as RadioShack Cat. No. 23-557).

Cautions:

• Use only fresh batteries of the recom­mended size and type.

• Always remove old or weak batteries.
Batteries can leak chemicals that can
damage electronic circuits.

Note:

If the remote’s range is reduced,

replace the batteries immediately.

1. Press and remove 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.

12

3

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 inse rt 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, VCR, and so on. This switched out­let turns on and off with the receiver and provides a maximum of 100 Watts.

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 fits only one way.

R

L

A

B

R L

FRONT SPEAKERS

A

B

CAUTION:

DO NOT CONNECT TV SET OR MONITOR.

L

R

AC 120V 60HZ

PRE OUT

SUB

WOOFER

CENTER

SPEAKER

R

L

REAR

SPEAKERS

SWITCHED
100W MAX

0.8A MAX

AC OUTLET

1

Basic Op eration

Warning: To prevent possible hearing

loss, turn

VOLUME

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

UME

to a comfortable listening level.

MIN

to

before you turn

VOL-

The controls on the remote control work the same as the buttons on the

Note:

receiver’s front panel.
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.

Note: If you want to find out what a par­ticular button or control is used for, see
Page 22 (for the remote control) or P age
29 (for the fron t panel) to find the page
where the button or control is described.

Note: If you select a source while

MONITOR

is engaged,

TAPE 2

T APE 2

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

TAPE 2 MONITOR

func-

tion.

If you connected speakers only to the
minals,

press

(or B) to turn on only those speakers.

SPEAKERS A

If you connected speakers to both the
minals,

•Press in

do any of the following:

SPEAKERS A

or B to turn on either pair of speakers for a two-

FRONT SPEAKERS A

FRONT SPEAKERS A

speaker stereo effect.

•Press in

SPEAKERS A

and

B to turn on both pairs of speakers for a

four-speaker stereo effect.

•Press

SPEAKERS A

and B to the

out

position to silence all speakers
and listen privately with headphones (see “Using Headphones” on
Page 16).

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

TOR

,

T APE 2 MONITOR

press

so

TAPE 2

appears on the display.

To listen to a source other than one connected to

be sure

2 MONITOR

TAPE 2

TAPE 2

so

does not show on the display. If necessary, press

disappears.

(or B) ter-

and B ter-

TAPE 2 MONI-

T APE 2 MONITOR

TAPE

,

Then press

TUNER

VCR/TAPE 1, LD/DVD

PHONO

, or

, or repeatedly press

to display the desired program source.

4. Adjust

VOLUME

clockwise to increase the volume and counterclockwise
to decrease it. Or, you can use
trol.

5. Use the

BASS

and

TREBLE

controls to adjust the program’s tonal quality.

To enhance the bass level, press

6. Adjust

BALANCE

to suit your listening preferences. See “Balance Control”

on Page 15.

7. Press

POWER

to turn off the receiver.

(laser disc/digital video disc), CD,

FUNCTION

MASTER VOLUME –/+

SUPER BASS

on the remote control,

on the remote con-

.

14

5

Basic Oper ati on

-

Tuning the Radio

Note:

For weak signals, we recommned

manual tuning.

Your receiver offers three types of electronic tuning — m anu al, automatic, and
memory.

Manu al and Automatic Tuning

Follow these steps to manualy or automatically tune to the stations.

1. Press

2. Press

TUNER

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

TUNING

quency. Or, press and hold down
uncies. Release the button to stop.

To automatically search for the next higher or lower station, release

ING

as soon as the display starts to change. The receiver seaches up or

down the band to the next strong station.

Notes:

STEREO

•
appears on the display when you tune to a strong station. T o find a
weak FM station, press
FM Mono” on Page 16.

. The n pres s

or once to manually select the next higher or lower fre

appears on the display for FM stereo broadcasts.

FM/AM

to select the desired band.

TUNING

FM MONO

or to rapidly change freqe-

MONO

until

TUN-

TUNED

appears. See “Using

Notes:

• If you store a frequency in a mem ory
that already contains a freq uency, you
replace the previous frequency.

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

• If you press
at the bottom of the frequency range, the display returns to the other
end of the range.

TUNING

at the top of the frequency range or

TUNING

Memory Tuning

Memory tuning lets you instantly tune to a stored frequency . You can store up to
10 AM or FM frequencies in any of the three classes — up to 30 frequencies
total.

Follow these steps to store a station.

1. Press

2. Using either manual or automatic tuning, select the frequency you want to

3. Press

4. While

TUNER

store.
If d es i r ed, press

on Page 17). This setting is stored in the memory.

MEMORY

3

or

) flash on the display for about 5 seconds.

MEMORY
1-3

want (
station number you want appears on the display. The station number
lights steadily, indicating the receiver memorized the frequency.

. The n pres s

FM MONO

MEMORY

.

is on the display, press

) appears on the display . Then press

FM/AM

to select the desired band.

for FM monaural sound (see “Using FM Mono”

lights, and

-- ch

CLASS

and the class number (1, 2,

until the class number you

ST ATION

or until the

Repeat these steps to store additional frequencies.
To tune to a stored frequency, press

appears on the display, then press

CLASS

so the desired class number

STATION /

to select the station.

1

Basic Operation

Using FM Mono

Balance Control

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

You can improve the reception of weak FM stations by pressing

MONO

you get monaural instead of stereo sound.

BALANCE

The
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

1. Select

2. Press

3. Turn

4. Press

STEREO

appears. This reduces noise while you listen to a weak FM station, but

TUNER

FM MONO

stereo, so each speaker delivers the same output.

BALANCE

speaker when you are in the listening area.

FM MONO

appears on the display when you receive an FM broadcast

control lets you adjust the sound balance between the left and

. Then press

MONO

until

until you hear the sound coming equally from each

MONO

until

FM MONO

BALANCE

FM/AM

to select the FM band.

appears. The sound is monaural instead of

disappears from the display.

MONO

until

as follows:

disappears from

FM MONO

until

Muting the Receiver

Using Headphones

To temporarily mute the sound, press
appears. Press

To listen with headphones (not supplied), insert the headphones’ 1/4-inch plug
into the receiver’s front panel

B SPEAKERS

MUTING

to the out position and turn off any special sound options.

again to restore the audio level.

PHONES

MUTING

jack. To silence the speakers, set A and

on the remote control.

MUTING

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 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.

16

7

Cassette Deck/VCR Features

-

Using the VCR/TAPE 1
Button

Using the TAPE 2
MONITOR Button

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

1

TAPE 2 MONITOR

or
connected to the receiver’s corresponding (
jacks.

VCR/TAPE 1

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

TAPE 2 MONITOR

Press
program source you selected. You can hear playback or monitor a recording
from the cassette deck you connected to the receiver ’s

T APE 2 REC

The
you press

To return to the previous source, press
appears.

Notes:

• If you press

TAPE 2 MONITOR

nor recording, the receiver mutes the current audio source. To hear the
audio source, press
display.

lets you hear the playback from the cassette deck you

VCR/TAPE 1, T APE 2 MONITOR

VCR

.

appears on the display . Y ou hear the playback from the

VCR/TAPE 1 IN

TAPE 2

.

jacks continue to output the previously selected source when

T APE 2 MONITOR

T APE 2 MONITOR

appears on the display along with the last

T APE 2 MONITOR

.

TAPE 2 MONITOR

when that cassette deck is neither playing

TAPE 2

until

again so

disappears from the

VCR/TAPE

)

jacks.

jacks.

TAPE 2

dis

Recordi ng a Program Source

Dubbing a Cassette Tape

• Do not press
nected to
second.

The receiver sends the audio program source you select—

MONITOR
MONITOR REC

program are also sent to the
The

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

REC

and the last program source you selected appear on the display. See “Using the
TAPE 2 MONITOR Butto n.”

, CD,

VOLUME

VCR/TAPE 1

jacks as the recording deck. Then press

TAPE 2 MONITOR

T APE 2 REC

TUNER, PHONO

jacks (if you select

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

jacks as the source, and the deck you connected to the

. If you do, the recording is interrupted for about 1

TO MONITOR TV

while you are recording on the deck con-

VCR/TAPE 1, T APE 2

—to the

VCR/TAPE 1 OUT

VCR/TAPE 1

(audio) and

LD/DVD

or

jacks).

TAPE 2 MON ITOR

, the audio and video

until

T APE 2

TAPE 2

TAPE 2

1

Cassette Deck/VCR Features

Playing and Recording

ideo Tapes

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

VCR/TAPE 1

tapes from one VCR to another and monitor the dubbing process.

and

LD/DVD

audio and video jacks, you can copy video cassette

Playing a Video Cassette Tape

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

LD/DVD

or
jack the VCR is connected to.
the VCR’s instructions to begin playback. If you connected a monitor to the
receiver’s

. Press the button (

TO MONITOR TV

VCR/TAPE 1

VCR

or

jack, you can view the program on that monitor.

LD/DVD

or

LD/DVD

) that corresponds to the

appears on the display . Follow

VCR/T APE 1

Copying a Video Cassette Tape

Follow these steps to copy a video tape from one VCR to another.

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 con­nected to the

3. Press

4. Begin recording and playback on the VCRs.

LD/DVD

VCR/TAPE 1

.

jacks.

LD/DVD

.

18

9

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

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
jacks, do not select

TAPE 2 MONITOR

TA PE 2 M ON ITO R

when you listen to Dolby Surround sig-

options enhance a program source.

Notes:

To activate Dolby Pro-Logic Surround or Dolby 3CH Logic, press

LOGIC

, then press
Logic options (normal, wide, or phatom) or Dolby 3CH Logic. For studio effect or
simulated surround, press
display. On the remote control, press
when you select the Dolby Pro-Logic, use
(see “Sound Mode Adjustments (Remote Control Only)” on Page 20).

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.

CENTER MODE

SFC MODE

DOLBY PRO

on the remote control to select the Dolby Pro

until the desired option appears on the

SURR MODE

CENTER MODE

to select the sound options;

to make a selection

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 speak­ers 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.

1

Using A dvanced Sound Options

ound Mode Adjustments

Remote Control Only)

Note:

If you do not use a center speaker,
the monaural signals are only repro­duce d if you se lect 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.
Each time you press
and the receiver’s corresponding indicator lights:

TOM

Dolby Pro-Logic Surround options, or

NORMAL

right speakers play the center-channel bass sounds.

WIDE

ter speaker plays the center-channel bass sounds.

PHANTOM

sound comes from the front left and right speakers.

—Select this mode if you use a small center speaker. The front left and

—Select this mode if you use a medium or large center speaker. The cen-

—Select this mode if you have no center speaker. All center-channel

CENTER MODE

on the remote control, the setting changes

NORMAL, WIDE, or PHAN-

3CH LOGI C

.

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

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.

on the remote to

SURROUND

. Then press

TEST TONE

. The

Notes:

• Use the

VOLUME

control to adjus t the

overall sound level.

• Set the center mode to a selection

other than PHANTOM before adjusting
the center level.

Notes:

• For Dolby Pro-Logic Surround, the

delay is preset to 5 mS.

• The delay time does not affect the Stu-

dio Effect 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

AUDIO•SURROUND

Slide
center speaker sound level while in the Dolby Pro-Logic Surround or Dolby 3CH
Logic mode.

to

AUDIO

. Then press

– CENTER LEVEL +

to adjust t he

Rear Level

AUDIO•SURROUND

Slide
the rear speakers’ sound level while in the Dolby Pro-Logic Surround or Simu­lated Surround mode.

SURROUND

to

. Then press

– REAR LEVEL +

to adjust

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 5 to 30 milliseconds (ms) in 2 ms steps. Adjust this for the best sur­round effect.

AUDIO•SURROUND

Slide
change the delay time. The receiver displays the selected time.

SURROUND

to

. Then press and hold

DELA Y TIME

to

0

Using the Remote Control

g

g

g

g

g

g

g

g

g

g

g

g

-

g

g

g

g

g

g

g

e

e

The remote control works up to a distance of about 23 feet, and within a 30­degree 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.

AUDIO•SURROUND Switch

ASMS

RANDOM DISCBEST

DECK1 DECK2

STATION

REAR

LEVEL

CENTER

LEVEL

TEST

CENTER

TONE

MODE

RETURN

POWER

RECEIVER

AUDIO/VIDEO

SYSTEM REMOTE

SURROUND
AUDIO

TAPE

CLASS

TAPE2

MONITOR

SURR
MODE

DELAY

TIME

S.BASS

CD TAPE

FM MONO

FUNCTION

MUTING

MASTER
VOLUME

OSR

Set the switch to
cassette decks. Set the switch to

AUDIO

to control audio components such as CD players or

SURROUND

when setting the surround sound

options.

CD

When you set the switch to
tion marked in gold next to the button. For example, the button marked

TONE
SURROUND

AUDIO

to

RETURN

and

operates as the test tone function when you set the switch to

and returns the system to default settings when you set the switch

.

SURROUND

, dual-function buttons control the func-

TEST

Receiver/Amplifier Section

Receiv
Amplifi
Section

FUNCTION

– MASTER VOLUME +
CENTER MODE

– CENTER LEVEL +

– REAR LEVEL +

TEST TONE

DELA Y TIME

SURR MODE

RECEIVER POWER
RETURN

TAPE 2 MONITOR

S. BASS

MUTING

STATION
CLASS
FM MONO

Selects a pro
or phono). Repeatedly press
shows your desired pro

Adjusts the system’s volume. See Pa
Selects amon

Pa

e 21.

ram source (VCR/Tape 1, LD/DVD, CD, tuner,

FUNCTION

until the display

ram source. See Page 14.

e 14.

the three center modes or 3CH Logic. See

Controls the relat ive volume of the center speaker with

AUDIO•SURROUND

set to

AUDIO

. See Pa

e 21.

Controls the relat ive volume of the rear speakers with

AUDIO•SURROUND

Sounds test tones from each speaker with

ROUND

set to

SURROUND

Sets the rear-channel delay for Dolby Pro-Lo
and Simulated Surround pro

SURROUND

set to

. See Pa

Selects between Dolby Pro-Lo

set to

SURROUND

. See Pa

e 21.

AUDIO•SUR-

. See Pa

e 21.

ic Surround

rams with

AUDIO•SURROUND

e 21.

ic Surroun d or Simulated Sur

round sound. See Page 20.
Turns the receiver on and off. See Pa
Returns the receiver to its default settin

ROUND

set to

AUDIO

. See Pa

e 24.

e 14.

s with

AUDIO•SUR-

Switches the receiver to monitor the source connected to the

TAPE 2 MONITOR

Press to enhance bass sound wi th

AUDIO

to

.

Silences the receiver. Press a
previous level. See Pa

Press to move the next hi

jacks. See Pa

ain to restore the sound to its

e 15.

her or lower station in memory.

e 18.

AUDIO•SURROUND

set

Press to select the class of the station in memory
Press to disable the FM stereo mode to improve reception of

weaker FM stations.

21

CD Player Section

g

g

g

g

g

g

g

g

g

o

Using the Remote Control

ASMS

RANDOM DISCBEST

DECK1 DECK2

STATION

REAR

LEVEL

CENTER

LEVEL

TEST

CENTER

TONE

MODE

RETURN

POWER

RECEIVER

SURROUND
AUDIO

TAPE

CLASS

TAPE2

MONITOR

SURR

MODE

DELAY

S.BASS

CD TAPE

Before operation, set

You must connect the CD changer both to your receiver’s

Note:

AUDIO•SURROUND

to

AUDIO

.

CONTROL OUT

and audio jacks for these functions to wor k.

CD POWER

ASMS |

|

DISC SELECT

CD

CD Player
Section

RANDOM

Tape Secti

BEST

FM MONO

FUNCTION

MUTING

TIME

MASTER
VOLUME

Tape Section

Before operation:

Turns the CD player on and off (only for CD players havin

CONTROL IN/OUT

the
Returns to the be

feature).

inning of the current track or advances to

the next track.
Selects discs in a multi-play CD chan

Note:

Some CD players mi

SELECT

.

ht not function with

er.

DISC

Plays the CD.
Stops play.
Press to temporarily stop play. Press a

ain to resume.
Starts random playback.
With a CD chan

er 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 track.

AUDIO/VIDEO

SYSTEM REMOTE

OSR

•Set

AUDIO•SURROUND

• For a dual cassette deck, select
cassette deck, press

• You must connect the cassette deck both to your receiver’s

OUT

and audio jacks for these functions to work.

AUDIO

to

DECK 2

.

.

DECK 1

or

DECK 2

. If you use a single

CONTROL

Press to start normal pl ay.
Press to play the reverse side of an auto-reverse cassette

deck.
Press to temporarily stop playback/recor din

resume.

. Press again to

Press to stop the operation.

and

Lets you quickly l ocate and play the be
material durin

play.

inning of recorded

When the tape is stopped, let s you rapidly search forward or
backward to locate a spec if ic section of the tape.

DECK 1/DECK 2
TAPE POWER

Selects Deck 1 or Deck 2 when you use a dual cassett e deck .
Turns on/off the cassette de ck.

Note: TAPE POWER

does not work with all Optimus Profes -

sional Series cassette decks.

2

3

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 Solution

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. • S tation not correctly tuned. • Tune to a stronger station.

Tuning does not automatically stop
when searching for FM stations.

Cannot make copies of video
tapes.

Remote does not control cassette
deck or CD player.

• Static discharge has affected con-

trol.

• The mute function is activated. • Press

• The volume is t urned down. • Turn up the vo lume.

• Speaker wires are disconnected. • Connect the speaker wires.

• Neither s et of speakers is selected. • Press in

• The selected video source is not set

correctly.

• I ncorrect connections . • Correct the connections.

• A ntenna not connected. • Connect the antenna.

• FM antenna still coiled or is not

pointing in the correct direction.

• A M loop antenna not pointing in the

correct direction.

• Noise is coming from another el ec-

trical appliance.

• Stations are too weak. • Use a better antenna.

• Tapes are protected by a copy

restriction method.

• Video conn ections are incorrect. • Chec k and correct the connect ions.

• Cassette deck or CD player is not

compatible.

• Cont rol cable is not plugged in.

• A udio cable s are not plugged in.

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

MUTING

• Correct the problem with the selected
video source.

• S tretch both ends of the a ntenna taut and
reposition the antenna.

• A djust the AM loop antenna.

• Try using an AC line noi se filter to reduce
the noise.

• You cannot make a good copy.

• Th e feature only works with Optimus Pro­fessional Series components.

• P roperly connect the control cable.

• P roperly connec t the audio cables.

.

SPEAKERS A

or B.

Returning Controls to
Factor y Defaults

RETURN

Press

Tape 2 Monitor Off
Source TUNER

Band

Surround Mode O ff
Muting Off
Super Bass Off

to return the controls to the following settings.

FM (Set to the last-tuned frequency. If the receiver
cannot receive the frequency, it starts searching for
the next strong station.)

2

Care and Maintenance

our Optimus STAV-3560/3570 Digital Synthesized A/V Surround Receiver is an example of superior design and craftsman-

hip. 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 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

CLEANER

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.

odifying or tampering with your receiver ’s internal components can cause a malfunct ion and might invalidate the receiver’s
arranty and void your FCC authorization to operate it. If the receiver is not operating as it should, take it to your local
adioShack store for assistance.

4

5

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.

2

Specifications

mplifier

ront Channel Average Power Output . . . . . . . . . . . . . 100 Watt (STAV-3570)/60 Watts (STAV -3560) per Channe l 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

ront Channel Surround Power Output . . . . . . . . . . . .70 Watts per Channel (STAV-3570)/60 Watss per Channel (STAV-3560)

enter Channel Surround Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Watts (STAV-3570)/60 Watt s (STAV-3560)

ontinuous Rear Surround Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70 Watts (STAV-3570)/60 Watts (S TAV-3560)

per Channel (1 kHz, 0.8% THD, 8 Ohms)

ynamic Power Output (2 Ohms/4 Ohms/8 Ohms) . . . . . . . . . . . . . . . . . . . . . . . . 170 Watts/160 Watts/130 Watts (STAV-3570)

110 Watts/100 Watts/70 Watts (STAV-3560)

nput Sensitivity/Impedance

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

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

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

requency 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

utput Level/Impedance

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

one Controls

Bass. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±8 dB (150 Hz)

Treble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±8 dB (10 kHz)

Super Bass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+8 d B (80 Hz )

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

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

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

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

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

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

ideo Section

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

utput Level/Impedance VCR/TAPE 1, Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Volt Peak-to-Peak/75 Ohms

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

ignal-to-Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 dB

rosstalk. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55 dB

6

7

Specifications

z

)

)

)

)

)

)

)

)

)

d

z

m

B

B

z

)

m

s

)

)

FM Tuner

Frequency Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87.5 to 108 MH

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 Ohm s

Signal-to-Noise Ratio

Mono. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 dB (at 85 d B f

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 Unbalance

AM Tuner

Frequency Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .530 to 1700 kH

Sensitivity (IHF, Loop Antenna) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350 µV/

Selectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 d

Signal-to-Noise Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 d

General

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 0 Volts AC , 6 0 H

Power Consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 Watts, 300 VA (UL

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

Dimensions (HWD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51/2 × 169/16 × 1215/16 Inche

(140 × 420 × 328 mm

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 lbs, 13 oz (7.2 kg

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

2

Index to Features by Control N ame

his table lists the control and indicator names found on the front of your receiver, along with the page number where the con-

rol or indicator is discussed. T o find a description for the buttons on the remote control, see “Using the Remote Control” on

age 22.

Control Page

BALANCE
BASS
BEST
CD
CLASS
FM MONO
FM/AM
LD/DVD
MEMORY
MUTING
NORMAL
PHANTOM
PHONES
PHONO
POWER

16
14
22
14
15
16
15
14
15
16
20
20
16
14
14

RANDOM
RETURN
SELECT
SFC MODE
SP EAKERS A and B
SUPER BASS
T APE 2 MONITOR
TREBLE
TUNER
TUNING
VCR/TAPE 1
VOLUME
WIDE

22
23
15
19
14
14

14, 17

14
15
15

14, 17

14
20

8

9

Notes

2

Notes

0

Notes

31

RadioShack Limited Warranty

This product is warranted against defects for 2 years from date of purchase from
RadioS ha c k c om p any-owned stor es an d a ut h orized Ra di oShack fr a nc hi sees and d eal­ers. Wit h in th is period, w e wi ll repai r it w i th out char ge fo r pa rt s an d l ab or. Sim p ly

your RadioShack sales slip

ranty does not cover transportation costs. Nor does it cover a product subjected to mis­use or accidental damage.
EXCEPT AS PROVIDED HEREIN, RADIOSHACK MAKES NO EXP RESS WARRAN­TIES AND ANY IMPLIED WARRANTIES ARE LIMITED IN DURATION TO THE DURA­TION OF THE WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. Some states
do not pe r m it li mitatio n or exclus io n of implied warrantie s; th er e fo r e, t h e afo r e sa id limi­tation(s) or exclusion(s) may not apply to the purchaser.

This warranty gives you specifi c legal rights and you may also have other rights which vary fr om
state to state.

as proof of purchase date to any RadioShack store. War-

We Service What We Sell

bring

9/94

RadioShack

A Division of Tandy Corporation

Fort Worth, Texas 76102

<ARB1484-A>

7A6 Printed in Ma laysia