Jensen JTA-470 User manual

Professional 3-Speed Stereo Turntable with
Speed Adjustment
USER MANUAL
JTA-470
PLEASE READ THIS USER MANUAL COMPLETELY BEFORE
OPERATING THIS UNIT AND RETAIN THIS BOOKLET FOR FUTURE REFERENCE

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WARNING
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT USE THIS PLUG WITH AN
EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN
BE FULLY INSERTED TO PREVENT BLADE EXPOSURE. TO PREVENT FIRE OR
SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
The Caution Marking is located at the bottom enclosure of the apparatus.
The Rating plate is located at the back enclosure of the apparatus
IMPORTANT SAFETY INSTRUCTIONS
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s
instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or
other apparatus (including amplifiers) that product heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized
plug has two blades with one wider than the other. A grounding type plug has two
blades and a third grounding prong. The wide blade or the third prong is provided for
your safety. If the provided plug does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs,
convenience receptacles, and the point where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with a cart, stand, tripod, bracket, or table
recommended by the manufacturer, or sold with the product.
When a cart is used, use caution when moving the
cart/apparatus combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when
unused for a long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the
apparatus has been damaged in any way, such as power-supply cord or plug is
damaged, liquid has been spilled or objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture, does not operate normally, or has
been dropped.

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15. This appliance shall not be exposed to dripping or splashing water and that no object
filled with liquids such as vases shall be placed on the apparatus.
16. Do not overload wall outlet. Use only power source as indicated.
17. Use replacement part as specified by the manufacturer.
18. Upon completion of any service or repairs to this product, ask the service technician
to perform safety checks.
19. Power Sources - This product should be operated only from the type of power source
indicated on the marking label. If you are not sure of the type of power supply to your
home, consult your product dealer or local power company. For products intended to
operate from battery power, or other sources, refer to the operating instruction.
20. Object and Liquid Entry - Never push objects of any kind into this product through
openings as they may touch dangerous voltage points or short-out parts that could
result in a fire or electric shock. Never spill liquid of any kind on the product.
21. Damage Requiring Service - Unplug this product from the wall outlet and refer
servicing to qualified service personnel under the following conditions:
a) When the power-supply cord or plug is damaged,
b) If liquid has been spilled, or objects have fallen into the product,
c) If the product has been exposed to rain or water,
d) If the product does not operate normally by following the operating instructions.
Adjust only those controls that are covered by the operating instructions as an
improper adjustment of other controls may result in damage and will often require
extensive work by a qualified technician to restore the product to its normal
operation.
e) If the product has been dropped or damaged in any way, and
f ) When the product exhibits a distinct change in performance - this indicates a need
for service.
22. Main plug is used as disconnect device and it should remain readily operable during
intended use. In order to disconnect the apparatus from the mains completely, the
mains plug should be disconnected from the mains socket outlet completely.
23. Battery shall not be exposed to excessive heat such as sunshine, fire or the like.
24. Excessive sound pressure from earphones and headphone can cause hearing loss.
This symbol indicates that this product incorporates doub le insulation
between hazardous mains voltage and user accessible p a r ts.
CAUTION:
TO PREVENT ELECTRIC SHOCK, MATCH WIDE
BLADE OF AC PLUG TO WIDE SLOT. FULLY INSERT.
SAVE THESE INSTRUCTIONS

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COMPLIANCE WITH FCC REGULATIONS
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may
cause undesired operation.
NOTE : This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in
a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
CAUTION: Changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate
the equipment.
PROTECT YOUR FURNITURE
This system is equipped with non-skid rubber ‘feet’ to prevent the product from moving
when you operate the controls. These ‘feet’ are made from non-migrating rubber
material specially formulated to avoid leaving any marks or stains on your furniture.
However certain types of oil based furniture polishes, wood preservatives, or cleaning
sprays may cause the rubber ‘feet’ to soften, and leave marks or a rubber residue on
the furniture.
To prevent any damage to your furniture we strongly recommend that you
purchase small self- adhesive felt pads, available at hardware stores and home
improvement centers everywhere, and apply these pads to the bottom of the rubber
‘feet’ before you place the product on fine wooden furniture.

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DEAR JENSEN
®
CUSTOMER
Selecting fine audio equipment such as the unit you've just purchased is only the start
of your musical enjoyment. Now it's time to consider how you can maximize the fun
and excitement your equipment offers. This manufacturer and the Electronic Industries
Association's Consumer Electronics Group want you to get the most out of your
equipment by playing it at a safe level. One that lets the sound come through loud and
clear without annoying blaring or distortion and, most importantly, without affecting
your sensitive hearing.
Sound can be deceiving. Over time your hearing "comfort level" adapts to higher
volumes of sound. So what sounds "normal" can actually be loud and harmful to your
hearing. Guard against this by setting your equipment at a safe level BEFORE your
hearing adapts.
To establish a safe level:
•Start your volume control at a low setting.
•Slowly increase the sound until you can hear it comfortably and clearly, and without
distortion.
•Once you have established a comfortable sound level: Set the dial and leave it
there.
Taking a minute to do this now will help to prevent hearing damage or loss in the future.
After all, we want you listening for a lifetime.
We Want You Listening For a Lifetime
Used wisely, your new sound equipment will provide a
lifetime of fun and enjoyment. Since hearing damage from
loud noise is often undetectable until it is too late, this
manufacturer and the Electronic Industries Association's
Consumer Electronics Group recommend you avoid
prolonged exposure to excessive noise.
Customer's Record:
The serial number of this product is found on its back cover. You should note the serial
number of this unit in the space provided as a permanent record of your purchase to
aid in identification in the event of theft of loss.
Model Number: JTA-470 Serial Number: ____________________

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ACCESSORIES INCLUDED
- Application CD
- USB cable
- User Manual
- Rubber Pad
- Counter Weight
LOCATION OF CONTROLS
1. DUST COVER
2. POWER ON/OFF BUTTON
3. CUE BUTTON
4. EJECT BUTTON
5. PLAY BUTTON
6. 45 RPM ADAPTER
7. STROBE TUNER
8. COUNTER WEIGHT
9. TURNTABLE SPEED SELECTOR
10. PITCH CONTROL
11. RECORD SIZE SELECTOR
12. RCA LINE-OUT JACKS
13. USB PORT FOR COMPUTER
CONNECTION
14. AC POWER CORD
15. AUX IN JACK
Caution:
Usage of controls or adjustments or performance of procedures other than those
specified herein may result in hazardous radiation exposure.
This unit should not be adjusted or repaired by anyone except qualified service
personnel.

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PRECAUTIONS FOR USE
Installation
•Unpack all parts and remove protective material.
•Do not connect the unit to the mains before checking the mains voltage and before all
other connections have been made.
•Do not cover any vents and make sure that there is a space of several centimeters
around the unit for ventilation.
INSTALLATION OF THE COUNTER WEIGHT
1. Slide the COUNTER WEIGHT (#8) onto the back of the tone arm, and push it forward
until it reaches the pivoting hub of the tone arm as shown in figure 1 below.
2. Rotate the COUNTER WEIGHT (#8) clockwise and it will begin to move away from
the pivoting hub. Keep rotating the COUNTER WEIGHT (#8) until it reaches the white
line on the tone arm scale as show below in figure 2. Line up the “0” on the
COUNTER WEIGHT (#8) scale, so it’s lined up with the white line.
3. Slowly rotate the COUNTER WEIGHT (#8) counter-clockwise and it will begin to
move in towards the pivoting hub of the tone arm. The numbers shown on the
COUNTER WEIGHT (#8) will increase, and this increases the weight applied to the
stylus needle when playing a record.
4. Adjust the COUNTER WEIGHT (#8) for the desired tracking force applied to the
stylus needle, and so the needle does not skip while playing a record.
NOTE : Each number on the tone arm COUNTER WEIGHT (#8) scale represents the
working pressure applied to the stylus needle. This is normally set between 4 and 6
grams depending on the stylus used, and according to the cartridge manufacturer.
CONNECTION
1. Plug the AC POWER CORD (#14) into a household AC outlet
2. Press the ON/OFF BUTTON (#2) to turn on the unit.
3. Please refer to the Operations section of this Manual for details.
Remark :
Connect the JTA-470 to an external Hi-Fi / AMPLIFIER system by connecting the RCA
LINE-OUT JACKS (#12) to the auxiliary input jacks on your Hi-Fi/Amplifier system with
RCA cables (not included).

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PHONO
A) Operation
-Remove the stylus protector.
-Untie the cable holding the tone arm in place, and make
sure it’s removed from the tone arm rest before
operating the unit.
1. Raise the JTA-470 DUST COVER (#1)
2. Set the TURNTABLE SPEED SELECTOR (#9) to the proper position for the record
you are playing.
3. Set the RECORD SIZE SELECTOR (#11) to select the record size you are playing.
“17” cm for 45 RPM or “30” cm for 33-1/3 RPM.
4. Place the record on the platter [use the 45 RPM ADAPTER (#6) if necessary].
5. You can manually raise the tone arm and place the needle on the record, or press the
PLAY BUTTON (#5) to start to automatic playback of the first track on the record.
6. If you manually place the needle on the record, or need to raise the tone arm
manually, you can use the CUE BUTTON (#3). Press the CUE BUTTON (#3) (UP
position) to automatically raise the tone arm up off the record, or up and out of the
tone arm rest.
7. Lift the tone arm from the rest and slowly move it towards the record. The platter will
start to rotate. Position the tone arm over the desired track on the record.
8. Press the CUE BUTTON (#3) (DN position) again, and the tone arm will go down
slowly on the record and start playing the selected track.
9. At the end of record, the tone arm will return to the rest position automatically.
10.To stop the record manually, lift the tone arm from the record and return it to the rest.
Play suspension
Press the CUE BUTTON (#3) so it’s in the UP position. The tone arm will lift up and then
stop playback temporarily.
Play ejection
Press the EJECT BUTTON (#4) anytime during playback, the tone arm will return to the
rest position immediately.
Remark :
- The tone arm may automatically return to the rest the first time you use the unit. This is
not a malfunction. The unit will reset and operate properly the next time used.
- This unit is not compatible with magnetic cartridges. If you change the cartridge and
stylus to a magnetic type, you will no longer be able to use this system via the Aux-in
on your music system.
- Certain records may have the end of the record located before the auto return detection
area. The tone arm may not automatically return to the rest. Press the EJECT
BUTTON (#4), the tone arm will return to the rest.

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B) Platter speed adjustments
-During playback of a record, observe the appropriate strip of strobe calibration dots
using the STROBE TUNER (#7). The Upper row is for 33 RPM, the middle row is for
45 RPM, and the bottom row is for 78 RPM.
-If the strobe dots for the speed you are playing appear to be moving to the right, it
means the platter is revolving slower than the rated speed. Slide the PITCH
CONTROL (#10) to the “ + “ direction. If the strobe dots appear to moving to the left, it
means the platter is revolving faster than rated speed. Slide the PITCH CONTROL
(#10) to the “ – “ direction.
-Adjust the PITCH CONTROL (#10) until the strobe dots for the selected speed
appear to be stationary without moving left or right.
IMPORTANT: Using the turntable on any other power source other than 120V AC/60Hz
will affect the strobe tuning accuracy.
AUX IN OPERATION
You can attach other music sources (iPod, MP3 or other digital audio players) through
the AUX IN JACK (#15) to your external player’s audio out jack or headphone jack.
1. Use an audio cable (not included) with one 3.5 mm stereo plug on each end of the
cable.
2. Plug one end into the AUX IN JACK (#15) on the JTA-470 and the other end of the
cable into the Line-out Jack or Headphone Jack of your external audio device. The
JTA-470 will switch to AUX mode automatically.
3. Turn on the JTA-470 and the connected it to your home music system.
4. Start playing the device you plugged into the AUX IN JACK (#15).
5. Slowly adjust both the volume controls of your home music system connect to the
JTA-470 and the external device until you reach a comfortable listening level.
Note:
(1). If the line out jack of your external device is connected, then you only need to adjust
the volume control of the your home music system. If the Headphone Jack of your
external device is connected, then you may need to adjust both the volume control of
your external device and the volume control of the connected Hi Fi system to find the
most desirable volume setting.
(2). Once the AUX IN JACK (#15) is plugged, the unit will enter the AUX mode.
Remember to disconnect the connection cable from the JTA-470 after use in order to
be able to listen to the record from the Turntable.
(3). Press the POWER ON/OFF BUTTON (#2) to turn off the JTA-470 when you finish
listening. Don't forget to switch off the power on the connected Hi Fi system and your
external device as well.

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CONNECTING TO A COMPUTER FOR RECORDING
Before getting start, please install the “ AUDACITY ” recording software onto your
computer. Below is an example using a computer with Microsoft XP and the Audacity
software installed. For other Windows OS or Mac OS, please visit Audacity website for
details. http://audacity.sourceforge.net/
INSTALLING THE AUDACITY SOFTWARE
1. Insert the Audacity disc (included) into the CD drive of your computer.
2. Click on My computer on the desktop.
3. Double click CD drive to view the contents of the CD and select “Windows” under
“Audacity” folder.
4. Open “Windows” folder and select “Audacity 2.0.3 (Windows 2000, XP, Vista, 7, 8)”.
5. Double click Audacity set up icon with file name “audacity-win-2.0.3” to install the
Audacity software according to the instruction, read license agreements of Audacity
before installation.
NOTE:
Free software (AUDACITY) licensed under the GNU general public license (GPL).
More information as well as open source code can be found on the provided CD or on
the website at: http://audacity.sourceforge.net/
INSTALL THE USB DRIVE
1. Use the included USB cable to connect the turntable to your computer.
2. Your computer will detect the JTA-470 as a “USB PnP Audio Device” & start to install
USB drivers for it automatically.
3. Waiting for the installation complete until your computer shows a pop up a message
that it is installed properly and ready to use.
SET RECORDING INPUT LEVEL (USING A WINDOWS XP COMPUTER)
1. Click the “Start“ in the left corner of your computer
2. Select “All Programs“ “Accessories” “Entertainment““Sound Recorder“ to
open the sound record interface.

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3. Select “Edit” and then click “Audio Properties“ towards the bottom of the menu to
select “Audio properties” interface.
4. In the Sound Recording field, click the pull down menu to select “USB PnP Audio
Device” as Default device of sound recording.
5. Click the Volume button under the Sound
recording tab to open ”Recording Control“ interface;
6. Adjust the line in volume to a level without distortion. You can play a record on the
turntable and use the Sound Recorder to record a short clip of music for testing. The
sound wave will show on the interface screen when recording.

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RUNNING AUDACITY SOFTWARE
Note: Please review the software license and distribution restrictions found on the
software disc. Use of the Audacity software is subject to those conditions and restriction.
For additional help with recording and editing music by using the Audacity software,
please visit http://audacity.sourceforge.net/
1. Run the Audacity from the Windows start menu or double click the Audacity icon on
your computer desktop.
2. The Audacity main screen appears. You will find the Record, Play, Pause, Stop, Skip
to Start and Skip to End control buttons here. Use the File, Edit, View, Transport,
Tracks, Generate, Effect and Analyze menus from your computer screen to Save,
Export or Edit the music.
3. Click “Preferences” at the bottom of the Edit menu, you can set the Devices, Quality,
and various settings here.

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4. Adjust the input and output volume by sliding the Input and Output Volume bars.
5. Click the record button to start recording, left and right tracks will show on your
computer screen. If you cannot see the sound waves appear on the Interface when
recording, adjust the Input volume bar.
Output Volume Input Volume

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6. Use the Audacity control panel to record or listen the music you have recorded
- Click button to start recording.
- Click the button to skip to start;
- Click the button to skip to end;
- Click the button to play;
- Click the button to pause;
- Click the button to stop.
EXPORT THE MUSIC FILES TO WAV OR MP3 FORMAT
Once you have finished recording, make sure you save your recorded music to the
computer.
1. Click File menu and move down to “Export” to convert the file to WAV format or MP3
format.
2. Click on WAV or MP3 format you want to save the music as in pull down menu of
“Save as type” field, and you will be asked for the file name of your recorded music
NOTE: Audacity does not export MP3 files directly. If you want to encode your recorded
music to MP3 format, you need to download the LAME MP3 encoder either in the CD
provided or under the page “Other Audacity Downloads for Windows” of the website
http://audacity.sourceforge.net/
INSTALL THE MP3 ENCODER
1. Insert the included CD into your computer and select “Audacity 2.0(Windows
2000, XP, Vista, 7, 8)” under “Windows” folder.
2. Open the folder and select “Plug-ins”.
3. Double click the “Lame_v3.99.3_for_windows.exe” file under “Plug-ins” folder to
start install the program.
Note: Normally, Audacity will automatically locate the Lame file that you installed.
However, if you change default directory of Lame program, you may need to
manually locate it by using AudacityEditPreferenceLibraries and the
click “Locate” button on computer screen to browse “lame_enc.dll” file where
the directory you have installed. See Fig.1 & 2 below and click OK to finish
manual installation.

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Fig. 1
Fig.2
CARE AND MAINTENANCE
1. Avoid operating your unit under direct sunlight or in hot, humid or dusty places.
2. Keep your unit away from heating appliances and sources of electrical noise such as
fluorescent lamps or motors.
3. Unplug the unit from the electrical power outlet immediately in case of malfunction.
CLEANING THE UNIT
To prevent fire or shock hazard, disconnect your unit from the AC power source
when cleaning.
The finish on the unit may be cleaned with a dust cloth and cared for as other
furniture, Use caution when cleaning and wiping the plastic parts.
If the cabinet becomes dusty wipe it with a soft dry dust cloth. Do not use any wax or
polish sprays on the cabinet.
If the front panel becomes dirty or smudged with fingerprints it may be cleaned with a
soft cloth slightly dampened with a mild soap and water solution. Never use abrasive
cloths or polishes as these will damage the finish of your unit.
CAUTION: Never allow any water or other liquids to get inside the unit while cleaning.

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TROUBLESHOOTING GUIDE
SHOULD YOU EXPERIENCE DIFFICULTIES IN THE USE OF THIS PLAYER PLEASE
REFER TO THE FOLLOWING CHART OR CALL 1-800-777-5331 FOR CUSTOMER
SERVICE.
PROBLEM POSSIBLE CAUSE SOLUTION
AC power cord is not plugged
into a wall outlet
Plug the AC power cord into a wall
outlet.
Wall outlet is not functioning. Plug another device into the same outlet to confirm the outlet is
working.
The unit does
not respond
(no power).
POWER Switch in the OFF
position
Press the POWER ON/OFF switch
to the ON position
Unit is ON but
there is low or
no volume
Unit is not connected to external
Hi-Fi/Amplifier
Connect the external
Hi-Fi/Amplifier
Sound is
distorted. Volume level is set too high Decrease the volume
SPECIFICATION
AC Power AC 120V ~ 60Hz 5 Watts
System Requirement: Windows 2000 / XP/ Vista / 7 / 8
Mac OS X 10.4 – 10.7.5
SPECTRA GREEN NOTICE
At Spectra, environmental and social responsibility is a core
value of our business. We are dedicated to continuous
implementation of responsible initiatives with an aim to
conserve and maintain the environment through responsible
recycling.
Please visit us at http://www.spectraintl.com/green.htm for more information on Spectra’s green
initiatives or to find a recycler in your area.

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90 DAY LIMITED WARRANTY AND SERVICEVALID IN THE U.S.A ONLY
SPECTRA MERCHANDISING INTERNATIONAL, INC. warrants this unit to be free from
defective materials or factory workmanship for a period of 90 days from the date of
original customer purchase and provided the product is utilized within the U.S.A. This
warranty is not assignable or transferable. Our obligation under this warranty is the
repair or replacement of the defective unit or any part thereof, except batteries, when it is
returned to the SPECTRA Service Department, accompanied by proof of the date of
original consumer purchase, such as a duplicate copy of a sales receipt.
You must pay all shipping charges required to ship the product to SPECTRA for warranty
service. If the product is repaired or replaced under warranty, the return charges will be
at SPECTRA’s expense. There are no other express warranties other than those stated
herein.
This warranty is valid only in accordance with the conditions set forth below:
1. The warranty applies to the SPECTRA product only while:
a. It remains in the possession of the original purchaser and proof of purchase is
demonstrated.
b. It has not been subjected to accident, misuse, abuse, improper service, usage
outside the descriptions and warnings covered within the user manual or
non-SPECTRA approved modifications.
c. Claims are made within the warranty period.
2. This warranty does not cover damage or equipment failure caused by electrical wiring
not in compliance with electrical codes or SPECTRA user manual specifications, or
failure to provide reasonable care and necessary maintenance as outlined in the user
manual.
3. Warranty of all SPECTRA products applies to residential use only and is void when
products are used in a nonresidential environment or installed outside the United
States.
This warranty gives you specific legal rights, and you may also have other rights which
vary from state to state. TO OBTAIN SERVICE please remove all batteries (if any) and
pack the unit carefully and send it freight prepaid to SPECTRA at the address shown
below. IF THE UNIT IS RETURNED WITHIN THE WARRANTY PERIOD shown above,
please include a proof of purchase (dated cash register receipt) so that we may establish
your eligibility for warranty service and repair of the unit without cost. Also include a note
with a description explaining how the unit is defective. A customer service representative
may need to contact you regarding the status of your repair, so please include your name,
address, phone number and email address to expedite the process.
IF THE UNIT IS OUTSIDE THE WARRANTY PERIOD, please include a check for
$50.00 to cover the cost of repair, handling and return postage. All out of warranty
returns must be sent prepaid.
It is recommended that you contact SPECTRA first at 1-800-777-5331 or by email at
custse[email protected]om for updated information on the unit requiring service. In
some cases the model you have may be discontinued, and SPECTRA reserves the right
to offer alternative options for repair or replacement.
SPECTRA MERCHANDISING INTERNATIONAL, INC.
4230 North Normandy Avenue,
Chicago, IL60634, USA. 1-800-777-5331
To register your product, visit the link on the website below to enter your information.
http://www.spectraintl.com/wform.htm
0715 Printed in China