RCA Stereo Amplifier 01A02 User Guide

owner’s manual  
MINI STEREO AMPLIFIER  
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FEATURES  
Your RCA SA-155 Stereo Mini Amplifier is  
compact, yet it offers many of the same  
features as a larger amplifier. The amplifier  
includes three sets of input jacks that let you  
connect up to three separate sound sources,  
such as a CD player or tape deck, a  
turntable, and a tuner. The amplifier also  
has a front panel, 1/8-inch input jack that lets  
you quickly connect a portable CD or tape  
player.  
WARNING: To reduce the risk of fire or  
shock hazard, do not expose this product to rain  
or moisture.  
CAUTION  
RISK OF ELECTRIC SHOCK.  
!
DO NOT OPEN.  
CAUTION: TO REDUCE THE RISK OF  
ELECTRIC SHOCK, DO NOT REMOVE  
COVER OR BACK. NO USER-SERVICE-  
ABLE PARTS INSIDE. REFER SERVICING  
TO QUALIFIED PERSONNEL.  
Note: The SA-155 is designed to be used  
with the RCA TM-155 Mini Tuner.  
This symbol is intended to alert  
you to the presence of uninsu-  
lated dangerous voltage within  
the product’s enclosure that might  
be of sufficient magnitude to con-  
stitute a risk of electric shock. Do  
not open the product’s case.  
Your amplifier also includes the following  
features:  
Mono Button — lets you set the amplifier  
for monaural sound when you play a  
monaural sound source.  
This symbol is intended to inform  
you that important operating and  
maintenance instructions are  
included in the literature accom-  
panying this product.  
1/8-Inch Headphone Jack — lets you  
connect low-impedance stereo headphones  
for private listening.  
!
Tape-Out Jack — lets you record to a tape  
deck from a connected input source.  
CER/MAG Switch — lets you select the  
setting that matches your turntables  
cartridge for the best results.  
Tone and Balance Controls — let you  
control the sounds tone and balance.  
© 2002 RadioShack Corporation.  
All Rights Reserved.  
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2
 
MAKING CONNECTIONS  
Repeat Steps 1 and 2 to connect the left  
speaker to the amplifiers SPEAKERS L  
terminal.  
CONNECTING SPEAKERS  
For best results, use a matched pair of  
8-ohm speakers.  
Caution: Before you make speaker  
connections, be sure the AC power cord is  
not plugged in.  
CONNECTING AUDIO  
SOURCES  
Use standard, shielded audio cables for  
connecting audio sources such as a tuner/  
amplifier, tape deck, or CD player.  
For speaker connections, use a speaker cable  
with a phono plug on one end and the  
appropriate connector on the other end.  
This connection depends on the type of  
speakers you have. Your local RadioShack  
store sells a variety of speaker cables and  
connectors for most types of speakers.  
Connecting a Tuner  
Connect the tuners left and right output  
jacks to the amplifiers L and R TUNER  
input jacks.  
With Phono Jacks  
If the speakers have phono jacks, insert one  
speaker cables plug into the right speakers  
phono jack. Then insert the cables other  
plug into the amplifiers SPEAKERS R  
phono jack.  
Repeat this process for the left speaker.  
Without Phono Jacks  
If your speakers do not have phono jacks,  
use regular two-conductor speaker wire  
(available at your local RadioShack store)  
with a phono plug on one end. Follow these  
steps to connect this type of speaker.  
1. Connect the wires two separate  
conductors to the right speakers  
positive (+) and negative (–) terminals.  
2. Connect the wires phono plug to the  
amplifiers SPEAKERS R terminal.  
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3
If you want to connect another sound source  
(such as a turntable) to the amplifier and  
record to the tape deck, connect the L and R  
TAPE OUT jacks to the tape decks AUX IN,  
LINE IN, or TAPE IN jacks.  
Connecting a Turntable  
Connect the turntables left and right output  
jacks to the amplifiers L and R PHONO  
input jacks. If the turntable has a separate  
ground wire (usually black or green),  
connect it to the amplifiers PHONO GND  
screw.  
You can also connect a portable CD player  
or tape player to the 1/8-inch CD/TAPE  
input jack on the amplifiers front panel.  
If the turntable has a magnetic cartridge, set  
CER/MAG to MAG. If it has a crystal or  
ceramic cartridge, set CER/MAG to CER.  
(See the turntable owners manual to verify  
the type of cartridge).  
Note: Using this jack disables the L and R  
CD/TAPE jacks.  
CONNECTING TO POWER  
Connecting a Tape Deck or  
CD Player  
Caution: Before you plug the amplifiers AC  
cord into a standard AC outlet, be sure the  
power is off (POWER is in the out position).  
Connect a tape decks or CD players left and  
right output jacks to the L and R CD/TAPE  
input jacks on the amplifiers back panel.  
After you make all connections, plug the  
amplifiers AC cord into a standard AC  
outlet.  
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4
OPERATION  
1. Turn VOLUME to MIN.  
• Do not listen at extremely high  
volume levels. Extended high-  
volume listening can lead to  
permanent hearing loss.  
• Once you set the volume, do not  
increase it. Over time, your ears  
adapt to the volume level, so a  
volume level that does not cause  
discomfort might still damage your  
hearing.  
2. Press POWER. The red indicator lights.  
Note: The amplifier mutes the speakers  
when you connect headphones. If you  
want to listen through the speakers  
again, unplug the headphones.  
6. Start the sound source.  
7. Adjust VOLUME, TONE, and  
BALANCE as desired.  
8. When you finish using the amplifier,  
3. Set TUNER CD/TAPE PHONO to the  
source you want to listen to or record  
from.  
press POWER. The indicator turns off.  
4. If the sound source is monaural, press  
in MONO. If the sound source is stereo,  
leave the button in the out position.  
Note: The mono button setting also  
affects tape recording.  
5. For private listening, connect a  
headphones 1/8-inch mini plug into the  
amplifiers PHONES jack.  
Caution: To protect your hearing,  
follow these guidelines when you use  
headphones:  
• Set the volume to the lowest setting  
before you begin listening . After you  
begin listening, adjust the volume to  
a comfortable level.  
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5
TROUBLESHOOTING  
If you have a problem with the amplifier, first be sure all connections are correct and secure. If  
the problem continues, check the following troubleshooting information for a solution.  
Problem  
Solution  
No sound from  
the speakers  
Headphones are connected to the amplifier. Unplug the headphones.  
The source selector is set to the wrong audio source. Set the selector to  
the correct source.  
VOLUME is set too low. Turn VOLUME clockwise.  
If you connect a CD or tape player to the back panel and another to  
the front panel, the back panel jacks are disabled. Disconnect the  
player from the front panel jacks.  
No stereo sound  
MONO is pressed in. Press MONO to the out position.  
BALANCE is set all the way to one side. Adjust the control.  
The speaker connections are incorrect. Turn off the amplifier and  
correct the connections.  
Distorted or  
weak sound  
VOLUME is set too high or too low.  
The speaker connections are incorrect. Turn off the amplifier and  
correct the connections.  
The MAG/CER setting is incorrect. Set it to the correct position.  
MONO is pressed in while you listen to a stereo source. Press MONO  
to the out position.  
Cannot record  
The connections between the tape deck and the amplifiers L and R  
TAPE OUT jacks are incorrect or loose. Turn off the amplifier and  
correct the connections.  
The source selector is set to the wrong audio source. Set the selector to  
the source you want to record.  
If you connect a CD or tape player to the back panel and another to  
the front panel, the back panel jacks are disabled. Disconnect the  
player from the front panel jacks.  
This amplifier has been manufactured to the specifications of RadioShack and is covered by a  
limited warranty from RadioShack. If your amplifier is not operating as it should, take it to  
your local RadioShack store or call 1-800-THE-SHACK for assistance.  
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6
CARE  
To enjoy your RCA SA-155 Stereo Mini  
Amplifier for a long time:  
Keep the amplifier dry. If it gets wet,  
wipe it dry immediately.  
• Use and store the amplifier only in  
normal temperature environments.  
• Handle the amplifier gently and  
carefully. Do not drop it.  
Keep the amplifier away from dust and  
dirt.  
• Wipe the amplifier with a damp cloth  
occasionally to keep it looking new.  
Modifying or tampering with the amplifiers  
internal components can cause a  
malfunction and invalidate its warranty.  
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7
SPECIFICATIONS  
Power Requirements............................................................... 120 Volts AC, 60 Hz, 25 Watts  
Output Power  
(1% Distortion, 1 KHz, Both Channels Driven) ....................... 1.8 Watts Per Channel (RMS)  
Frequency Response ........................................................................................ 20–25,000 Hz  
Input Sensitivity:  
Phono ................................................................... 2.5 mV (Magnetic); 200 mV (Ceramic)  
Tuner .................................................................................................................... 160 mV  
CD/Tape ................................................................................................................ 160 mV  
Tape Output .............................................................................................................. 150 mV  
Speaker Impedance ......................................................................................... 8 to 16 Ohms  
Tone Control Response ........................................................................................... –18.0 dB  
Crosstalk at CD/Tape Input (@ 2 WattsPower) .............................................. 50 dB @ 1 kHz  
Dimensions (H × W × D) ................................ 21/2 × 91/4 × 67/8 Inches (6.4 × 23.6 × 17.5 cm)  
Specifications are typical; individual units might vary. Specifications are subject to change and  
improvement without notice.  
Limited Two-Year Warranty  
This product is warranted by RadioShack against manufacturing defects in material and workmanship under normal use for  
two (2) years from the date of purchase from RadioShack company- owned stores and authorized RadioShack franchisees  
and dealers. EXCEPT AS PROVIDED HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED  
WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIM-  
ITED 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, INCLUD-  
ING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSS OF TIME, DATA, PROP-  
ERTY, 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 limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or con-  
sequential 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 de-  
fect by product repair without charge for parts and labor; (b) replace the product with one of the same or similar design; or  
(c) refund the purchase price. All replaced parts and products, and products on which a refund is made, become the prop-  
erty of RadioShack. New or reconditioned parts and products may be used in the performance of warranty service. Re-  
paired 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, im-  
proper 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 Facil-  
ity; (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, 200 Taylor Street, 6th Floor, Fort Worth, TX 76102  
12/99  
RadioShack Corporation  
Fort Worth, Texas 76102  
811082210B  
01A02  
31-5000  
Printed in China  
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