Optimus Home Theater System 31 3044 User Manual

Cat. No. 31-3044  
HTS-105 Home Theater System  
Your HTS-105 Home Theater System includes the STAV-  
3770 receiver (RadioShack 31-3042, with its owner’s man-  
ual and accessories), two front speakers, two surround-  
sound (rear) speakers, one center-channel speaker, and  
one amplified subwoofer. All you need to add to have a  
complete home theater system are an audio/video input  
source (stereo Hi-Fi VCR or DVD/LD player) and a TV.  
Caring for Your Speakers  
• Use a polishing cloth or dry cloth to wipe off dust and  
dirt.  
• If the cabinet is very dirty, wipe it with a soft cloth  
dipped in a neutral cleanser diluted with water, then  
wipe again with a dry cloth. Do not use furniture wax  
or cleaners.  
For receiver instructions and the HTS-105’s warranty, refer  
to the STAV-3770 Owner’s Manual. The instructions on  
the next few pages only cover basic home theater and  
speaker connections, and how to adjust the subwoofer  
controls. Before making any connections, see “Positioning  
Speakers” in the STAV-3770 Owner’s Manual to choose  
the best locations for your speakers.  
• Never use thinner, benzene, insecticide sprays, or  
other chemicals on or near the cabinets.  
• Never use a vacuum cleaner to clean the grille cloth.  
Connecting Speakers  
Center Speaker  
Your HTS-105 system includes all speaker wires required  
for speaker connections. Each speaker wire consists of  
two conductors (individual wires) encased in insulation  
and is color-coded so you can identify each conductor (the  
color mark is on only one of the conductors in each speak-  
er wire pair). Use these colors as a guide to help you prop-  
erly connect the speakers. (For subwoofer connection,  
use the supplied patch cable with phono plugs on both  
ends. Phasing is automatic.) For easy identification, your  
speakers are labeled FRONT and REAR.  
Front Left  
Speaker  
Front Right  
Speaker  
Subwoofer  
Listening  
Area  
Rear Left  
Speaker  
Rear Right  
Speaker  
If the supplied speaker wires are too short for your con-  
nections, you can purchase additional wire at your local  
RadioShack store. Use 16-gauge (or larger) speaker wire  
for all speaker connections.  
Speaker Specifications  
Power Handling .................. 35W RMS, 105W Maximum  
(all speakers except subwoofer)  
When connecting each conductor to a speaker terminal,  
hold down the terminal lever, insert the conductor’s end  
into the small hole, and release the terminal lever to se-  
cure the conductor.  
Nominal Impedance Front /Center ..................... 8 Ohms  
Nominal Impedance Rear ................................. 16 Ohms  
Sensitivity (all speakers except subwoofer) ........... 86 dB  
When connecting each conductor to the receiver, press  
open the terminal lever, insert the conductor’s end into the  
small hole, and press the lever closed to secure the con-  
ductor.  
Supplied Accessories  
Notes:  
Quantity  
Description  
Colors  
• Be sure you connect the receiver’s right and left posi-  
tive (+) and negative (–) terminals to the speaker’s  
corresponding right and left positive (+) and negative  
(–) terminals.  
Speaker Wires  
2
2
Receiver Out to Front Speakers  
Light Blue/Pink  
Green/Orange  
Receiver Out to Surround Sound  
Speakers  
• Do not connect two pairs of speakers to a single set of  
terminals.  
1
Receiver Out to Center Speaker  
Patch Cable  
Yellow  
• Surround speakers generally sound best if you posi-  
tion them above ear level.  
1
1
Receiver Out to Subwoofer (single cable)  
VCR Out to Receiver In (dual cable)  
© 1999 Tandy Corporation.  
All Rights Reserved.  
RadioShack and Optimus are registered trademarks used by Tandy Corporation.  
 
Connecting the Front Speakers  
Left  
Front Speaker  
Right  
Front Speaker  
Pink  
Light Blue  
FRONT SPEAKERS  
SUB  
R
L
WOOFER  
CAUTION: SPEAKER IMPEDANCE  
~ 16 / SPEAKER  
8
PRE  
OUT  
R
R
L
L
CENTER  
SURROUND  
SPEAKERS  
SPEAKER  
1. Connect the light blue conductor to the receiver’s FRONT SPEAKERS L (+) red terminal.  
2. Connect the other conductor to the receiver’s FRONT SPEAKERS L () black terminal.  
3. Connect the light blue conductor’s other end to the left front speaker’s positive (+) red terminal.  
4. Connect the other conductor’s end to the left front speaker’s negative () black terminal.  
5. Using the pink wire, repeat Steps 1–4 to connect the receiver’s FRONT SPEAKERS R terminals to the right front speaker’s  
terminals.  
Connecting the Surround-Sound Speakers  
FRONT SPEAKERS  
SUB  
R
L
WOOFER  
CAUTION: SPEAKER IMPEDANCE  
~ 16 / SPEAKER  
8
PRE  
OUT  
R
R
L
L
CENTER  
SURROUND  
SPEAKERS  
SPEAKER  
Green  
Orange  
Surround-Sound  
Speaker  
Surround-Sound  
Speaker  
Right  
Left  
1. Connect the green conductor to the receiver’s SURROUND SPEAKERS L (+) red terminal.  
2. Connect the other conductor to the receiver’s SURROUND SPEAKERS L () black terminal.  
3. Connect the green conductor’s other end to the left surround speaker’s positive (+) red terminal.  
4. Connect the other conductor’s end to the left surround speaker’s negative () black terminal.  
5. Using the orange wire, repeat Steps 1–4 to connect the right surround speaker to the receiver’s SURROUND SPEAKERS R  
terminals.  
3
 
Connecting the Subwoofer  
FRONT SPEAKERS  
SUB  
R
L
WOOFER  
CAUTION: SPEAKER IMPEDANCE  
~ 16 / SPEAKER  
8
Subwoofer  
Receiver  
PRE  
OUT  
R
R
L
L
LINE LEVEL LEVEL  
INPUT  
POWER  
MAX  
MIN  
CENTER  
SURROUND  
SPEAKERS  
SPEAKER  
AC OUTET  
AC 120V 60Hz  
CAUTION:  
DONOT CONNECT  
TV SET OR MONITOR.  
SWITCHED  
100W MAX  
0.8A MAX  
LINE LEVEL  
INPUT  
LEVEL  
POWER  
MIN  
MAX  
Subwoofer  
Use the supplied single patch cable to connect the receiver’s SUBWOOFER/PRE OUT jack to the subwoofer’s LINE LEVEL INPUT  
jack. Then connect the subwoofer’s power cord to a standard AC outlet or the receiver’s SWITCHED outlet. The subwoofer’s  
POWER indicator lights when the power is on.  
Wall Mounting the Speaker System  
To mount the speakers on a wall, you need wood screws with heads that fit into the keyhole slot on the back of each speak-  
er. Make sure the wall surface and screws you use are appropriate for the weight of the speakers. Keep in mind that the  
speaker’s vibration will affect the surface, so we do not recommend mounting on plywood boards or other soft-surface  
walls.  
1
4
Drill a hole and thread a screw into the wall, letting the head extend about / inch (6 mm) from the wall. Align the keyhole  
slot with the mounting screw and slide the speaker downward to secure it.  
Wall or pillar  
Mounting  
Screw  
Keyhole Slot  
Wall or pillar  
Gap  
Incorrect  
Correct  
1/4"  
Adjusting the Subwoofer Level  
You can adjust the subwoofer sound level independently from the other speaker’s level. Rotate LEVEL on  
the back of the subwoofer clockwise to increase the volume; counterclockwise to decrease it.  
LINE LEVEL LEVEL  
INPUT  
POWER  
MAX  
MIN  
Note: Always set to MIN before you begin listening, then increase the level slowly. If the system is turned  
on with the volume set too high, it can cause damage to hearing or to the speaker. Take care not to in-  
crease the volume at the receiver (including BASS or LOUDNESS controls) with the subwoofer’s LEVEL  
set at the MAX position: the signal level might reach a clipping level, causing damage to the subwoofer’s  
amplifier or speaker element.  
RadioShack  
A Division of Tandy Corporation  
Fort Worth, Texas 76102  
06/99  
Printed in the USA  
 

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