Optimus Turntable LAB 1100 User Manual

42-2023.fm Page 1 Wednesday, August 11, 1999 2:50 PM  
Cat. No. 42-2023  
OWNER’S MANUAL  
Please read before using this equipment.  
LAB-1100  
Fully Automatic Belt-Drive Turntable  
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CONTENTS  
Preparation .............................................................................................................. 5  
Unpacking the Turntable .................................................................................... 5  
Assembling the Turntable ................................................................................... 5  
Connecting the Turntable to Your Receiver/Amplifier ......................................... 6  
Connecting Power .............................................................................................. 7  
Operation ................................................................................................................. 8  
Using the Cue Button ......................................................................................... 9  
Troubleshooting .................................................................................................... 10  
Care and Maintenance .......................................................................................... 12  
Record Care ..................................................................................................... 13  
Cleaning/Replacing the Stylus ......................................................................... 13  
Specifications ....................................................................................................... 14  
This symbol is intended to alert you to  
WARNING: To reduce the risk of  
the presence of uninsulated danger-  
ous voltage within the product’s enclo-  
fire or shock hazard, do not ex-  
pose this product to rain or mois-  
ture.  
sure that might be of sufficient  
magnitude to constitute a risk of elec-  
tric shock. Do not open the product’s  
case.  
CAUTION  
This symbol is intended to inform you  
that important operating and mainte-  
nance instructions are included in the  
literature accompanying this product.  
RISK OF ELECTRIC SHOCK.  
!
DO NOT OPEN.  
!
: TO REDUCE THE RISK OF  
CAUTION  
ELECTRIC SHOCK, DO NOT REMOVE  
COVER OR BACK. NO USER-SERVICE-  
ABLE PARTS INSIDE. REFER SERVIC-  
ING TO QUALIFIED PERSONNEL.  
3
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PREPARATION  
UNPACKING THE  
TURNTABLE  
When you remove the turntable assem-  
bly with its attached dust cover from the  
box, be sure to also remove the supplied  
rubber mat and 45 RPM adapter before  
you store the packing material.  
WRONG  
RIGHT  
5. Plug the turntable’s power cord into  
a standard AC outlet.  
Caution: To prevent electric shock,  
the plug’s blades are polarized and  
fit only one way. If the plug does not  
fit easily, turn it over and try again.  
Do not force the plug into the AC  
outlet.  
ASSEMBLING THE  
TURNTABLE  
Note: The LIN (lead in), RET (auto re-  
turn), and SW (tone arm switch) screws  
on the bottom of the turntable are set at  
the factory and should not be adjusted.  
6. Remove the wire tie from the tone  
arm, then press CUE to raise the  
tone arm.  
1. Open the dust cover.  
7. Press PLAY and let the motor rotate  
the turntable six or seven times,  
then press STOP and check the  
location of the belt on the spindle.  
2. Rotate the turntable’s platter until  
one of the platter’s two larger holes  
is above the drive motor spindle on  
the turntable’s upper left side.  
illustration like p. 8  
w/o arrow  
illustration from origi-  
nal o/m p. 4 left column  
If the belt is not securely seated  
around the spindle, reposition it  
properly and repeat Step 6.  
3. Remove the tape and two ribbons  
from the rubber drive belt. Be sure  
the belt is not twisted.  
Note: If the belt slips off the spindle,  
do not attempt to remove the platter.  
Take it to your local RadioShack  
store for assistance.  
4. Using your fingers, center the belt  
on the drive motor’s spindle (against  
the lower rim) so the belt is securely  
seated around the spindle.  
8. Unplug the turntable’s power cord  
from the AC outlet.  
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To connect the turntable to a low-  
level phono input, plug the white  
and red plugs into the receiver’s/  
amplifier’s left and right PHONO  
CONNECTING THE  
TURNTABLE TO YOUR  
RECEIVER/AMPLIFIER  
LINE OUT ON/  
jacks. Then set  
You can connect your LAB-1100 to a re-  
ceiver/amplifier (or stereo audio mixer)  
that has low-level phono inputs (such as  
left and right PHONO jacks) or line-level  
inputs (such as left and right AUX, TV,  
TAPE, or CD jacks).  
PHONO OUT OFF  
PHONO OUT  
to  
OFF  
.
illustration  
Note: If you are not sure which type of  
input your receiver/amplifier has, check  
your receiver’s/amplifier’s owner’s man-  
ual.  
Cautions:  
To connect the turntable to a line-  
level input, plug the white and red  
plugs into the receiver’s/ampli-  
• Be sure to follow all the installation  
instructions described in the en-  
closed “Important Safety Instruc-  
tions.”  
AUX TV TAPE  
fier’s left and right  
CD  
,
,
,
LINE OUT  
or  
jacks. Then set  
• Do not connect the turntable to AC  
power until you complete all other  
connections.  
ON/PHONO OUT OFF  
LINE OUT  
to  
ON  
.
• Do not place the turntable on top of  
the receiver/amplifier or on any  
other component that gets hot.  
illustration  
To avoid possible damage to your  
receiver/amplifier, turn it off before  
making the connections.  
1. With the receiver/amplifier off, plug  
the turntable’s white (left) and red  
(right) plugs into the appropriate  
jacks on your receiver/amplifier.  
2. Connect the turntable’s ground wire  
to the amplifier’s/receiver’s GND or  
earth terminal to avoid hum.  
5
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3. Place the rubber mat, ridged side  
down, on top of the platter.  
illustration  
CONNECTING POWER  
Once you have connected the turntable  
to your receiver/amplifier, plug the turn-  
table’s power cord into a switched or un-  
switched AC outlet on your receiver/  
amplifier or into a standard AC outlet.  
illustration  
Caution: To prevent electric shock, the  
plug’s blades are polarized and fit only  
one way. If the plug does not fit easily,  
turn it over and try again. Do not force  
the plug into the AC outlet.  
6
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OPERATION  
LINE OUT  
5. Press SPEED in or out to set the  
Note: Make sure you have set  
ON/PHONO OUT OFF for the type of  
sound system you have before operat-  
ing the turntable.  
turntable’s speed (331/3 or 45 RPM).  
illustration  
1. Open the dust cover.  
2. Remove the stylus cover.  
6. Press PLAY. The turntable starts to  
rotate and the tone arm moves to  
the beginning of the record, lowers  
to the record, then starts to play.  
illustration  
3. If you are playing a 331/3 RPM  
record, place it directly over the  
spindle.  
illustration  
If you are playing a 45 RPM record,  
place the supplied 45 RPM adapter  
over the turntable spindle, then  
place the record over the adapter.  
7. At the end of the record, the tone  
arm automatically returns to the  
tone arm rest and the turntable  
stops. To stop playing the record  
sooner, press STOP.  
illustration  
illustration  
4. Set the 6"/12" selector according to  
the record’s diameter. Then close  
the dust cover.  
Notes:  
• If the tone arm does not automati-  
cally return when it reaches the  
end of the record, press STOP to  
reset the mechanism.  
To protect the stylus from dam-  
age, we recommend you replace  
the stylus cover when you are not  
using the turntable.  
illustration  
7
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USING THE CUE BUTTON  
The cue button raises the tone arm so  
you can safely move it to a specific sec-  
tion of the record without worrying about  
accidentally scratching it with the stylus.  
CUE  
1. Press  
to raise the tone arm.  
illustration  
2. Push the tone arm to a spot directly  
over the desired part of the record.  
The turntable starts to rotate.  
CUE  
3. Press  
again. The tone arm  
slowly lowers and the record plays.  
CUE  
Note: You can also use  
to lift  
the tone arm anytime during play.  
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TROUBLESHOOTING  
If your turntable is not working as it should, these suggestions might help you solve  
the problem. If the turntable still does not operate properly, take it to your local Ra-  
dioShack store for assistance.  
Symptom  
Possible Cause  
Suggestion  
Turntable does not work  
when plugged into an AC amplifier not turned on.  
outlet  
Connected receiver/  
Turn on receiver/  
amplifier.  
Rubber drive belt slipped, Check rubber drive belt.  
broken, or not mounted  
properly.  
Power problem.  
Check the power cord and  
AC outlet.  
No sound  
Receiver/amplifier vol-  
ume set to minimum.  
Adjust receiver/amplifier  
volume.  
Turntable not connected  
correctly to receiver/ampli-  
fier.  
Recheck connections.  
LINE OUT ON/PHONO OUT  
OFF is set to PHONO OUT  
OFF and turntable is con-  
nected to receiver’s/ampli-  
fier’s line-level input jacks.  
Set LINE OUT ON/PHONO  
OUT OFF to LINE OUT ON.  
Stylus needs replacing.  
Replace the stylus  
(See “Cleaning/Replacing  
the Stylus” on Page 13).  
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Symptom  
Possible Cause  
Suggestion  
Sound from turntable not  
clear or scratchy during  
play  
Record is dirty.  
Stylus is dirty.  
Clean the record.  
Clean the stylus with a  
soft brush (See “Cleaning/  
Replacing the Stylus” on  
Page 13).  
Stylus is improperly  
installed.  
Check the stylus and rein-  
stall it if necessary.  
Stylus is worn.  
Replace the stylus.  
LINE OUT ON/PHONO OUT  
OFF is set to LINE OUT ON  
and turntable is connected  
to receiver’s/amplifier’s  
low-level phono input  
jacks.  
Set LINE OUT ON/PHONO  
OUT OFF to PHONO OUT OFF.  
Hum from turntable dur-  
ing play  
Stylus is improperly  
installed.  
Check the stylus and rein-  
stall it if necessary.  
Turntable is picking up  
Check ground terminal  
induction hum from other and reposition the turnta-  
components.  
ble away from other com-  
ponents.  
LINE OUT ON/PHONO OUT  
OFF is set to LINE OUT ON  
and turntable is connected  
to receiver’s/amplifier’s  
low-level phono input  
jacks.  
Set LINE OUT ON/PHONO  
OUT OFF to PHONO OUT OFF.  
Feedback or howling  
sound from turntable dur- sound pressure of vibra-  
ing play tions from speakers.  
Turntable is picking up  
Reposition the turntable  
away from speakers.  
10  
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CARE AND MAINTENANCE  
Your Optimus LAB-1100 Fully Automatic Belt-Drive Turntable is an example of supe-  
rior design and craftsmanship. The following suggestions will help you care for your  
turntable so you can enjoy it for years.  
Keep the turntable dry. If it gets wet, wipe it dry immediately. Liquids  
might contain minerals that can corrode the electronic circuits.  
Handle the turntable gently and carefully. Dropping it can damage cir-  
cuit boards and cases and can cause the turntable to work improperly.  
Use and store the turntable only in normal temperature environments.  
Temperature extremes can shorten the life of electronic devices and  
distort or melt plastic parts.  
Keep the turntable away from dust and dirt, which can cause premature  
wear of parts.  
Wipe the turntable with a damp cloth occasionally to keep it looking  
new. Do not use harsh chemicals, cleaning solvents, or strong deter-  
gents to clean the turntable.  
Modifying or tampering with the turntable’s internal components can cause a mal-  
function and might invalidate your warranty and void your FCC authorization to oper-  
ate it. If your turntable is not performing as it should, take it to your local RadioShack  
store for assistance.  
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If the stylus is worn, follow these steps  
to replace it. You can order a replace-  
ment stylus assembly AT3600LAX (RSU  
No. 12039012) through your local Ra-  
dioShack store.  
RECORD CARE  
• Always hold your records by the  
edges. Touching the grooved sur-  
face can leave fingerprints that can  
collect dust and dirt.  
1. Turn your receiver/amplifier off.  
• Always return your records to their  
jackets immediately after use. This  
helps protect them from dust and  
scratches.  
2. Remove the stylus assembly from  
the cartridge by gently grasping its  
sides and pulling it down.  
• Store your records in a vertical posi-  
tion and protect them from extreme  
temperatures, moisture, and direct  
sunlight.  
illustration  
CLEANING/REPLACING  
THE STYLUS  
3. Insert a new stylus assembly and  
gently snap it into place.  
A dirty or worn stylus causes rough, dis-  
torted sound and could damage your  
records.  
Caution: Do not touch the stylus while  
cleaning or installing it.  
If the stylus gets dirty or dusty, use a  
soft brush to gently clean it.  
illustration  
DON’T SHOW STY-  
LUS REMOVAL; CAN  
BE  
CLEANED  
IN  
PLACE  
12  
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SPECIFICATIONS  
Turntable Platter  
Type .................................................................................................................. Plastic  
Outer Diameter ...................................................................... 1113/16 Inches (300 mm)  
Drive System ............................................................................................... Belt Drive  
Motor Type ................................................................................................... DC Motor  
Turntable Type ................................................................................ Automatic Return  
Rotation Speeds ............................................................ 2-Speed (331/3 and 45 RPM)  
Tone Arm  
Type ................................................................................................ Dynamic Balance  
Effective Length ........................................................................ 11/16 Inches (195 mm)  
9
Overhang ......................................................................................... /16 Inch (15 mm)  
Tracking Error ........................................................................................ Less Than 4°  
Cartridge  
Output Voltage:  
2.5 mv at 1 kHz (with LINE OUT ON/PHONO OUT OFF set to PHONO OUT OFF)  
450 mv at 1 kHz (with LINE OUT ON/PHONO OUT OFF set to LINE OUT ON)  
Frequency Response ............................................................................ 20–20,000 Hz  
Channel Separation (1 kHz) ........................................................... More Than 15 dB  
Load Resistance : 47 kohm (with LINE OUT ON/PHONO OUT OFF set to PHONO OUT  
OFF)  
Tracking Force ..................................................................................... 3.5 ±1.0 Gram  
Stylus  
Tip ...................................................................................................... Diamond Stylus  
Replacement ......................................................... AT3600LAX (RSU No. 12039012)  
13  
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General  
Signal-to-Noise Ratio (DIN-B) ........................................................................ > 50 dB  
Wow and Flutter (JIS WARMS) at 3 kHz ....................................................... < 0.25%  
Power Source .............................................................................. AC 120 Volts 60 Hz  
Power Consumption ........................................................................................ 3 Watts  
Dimensions (HWD) ........................ 313/16 × 141/4 × 1315/16 Inches (98 × 360 × 349 mm)  
Weight ........................................................................................ 5 lbs 4 oz (2.38 kgs)  
Included Accessory .......................................................................... 45 RPM Adapter  
Specifications are typical; individual units might vary. Specifications are subject to  
change and improvement without notice.  
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Limited One-Year Warranty  
This product is warranted by RadioShack against manufacturing defects in material and workman-  
ship under normal use for one (1) year from the date of purchase from RadioShack company-owned  
stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, Ra-  
dioShack 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 RE-  
SPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY  
LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PERFOR-  
MANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, IN-  
CLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSS  
OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDEN-  
TAL, 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 warranty lasts or the exclusion of in-  
cidental or consequential damages, so the above limitations or exclusions may not apply to you.  
In the event of a product defect during the warranty period, take the product and the RadioShack  
sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, un-  
less otherwise provided by law: (a) correct the defect by product repair without charge for parts and  
labor; (b) replace the product with one of the same or similar design; or (c) refund the purchase  
price. All replaced parts and products, and products on which a refund is made, become the prop-  
erty of RadioShack. New or reconditioned parts and products may be used in the performance of  
warranty service. Repaired or replaced parts and products are warranted for the remainder of the  
original warranty period. You will be charged for repair or replacement of the product made after the  
expiration of the warranty period.  
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse,  
accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or  
maintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs  
other than those provided by a RadioShack Authorized Service Facility; (c) consumables such as  
fuses or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costs  
of product removal, installation, set-up service adjustment or reinstallation.  
This warranty gives you specific legal rights, and you may also have other rights which vary from  
state to state.  
RadioShack Customer Relations, Dept. W, 100 Throckmorton St., Suite 600, Fort Worth, TX 76102  
We Service What We Sell  
3/97  
RadioShack  
A Division of Tandy Corporation  
Fort Worth, Texas 76102  
11A98  
Printed in China  
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