Lenco LBT-288 Turntable with Bluetooth Transmission User Manual

June 10, 2024
Lenco

Lenco LBT-288 Turntable with Bluetooth Transmission User Manual

CAUTION:
Usage of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

PRECAUTIONS BEFORE USE

KEEP THESE INSTRUCTIONS IN MIND:

  1. Do not cover or block any ventilation openings. When placing the device on a shelf, leave 5 cm (2”) free space around the whole device.

  2. Install in accordance with the supplied user manual.

  3. Keep the device away from heat sources such as radiators, heaters, stoves, candles, and other heat-generating products or naked flame. The apparatus can only be used in moderate climates. Extremely cold or warm environments should be avoided. Working temperature between 0° and 35° C.

  4. Avoid using the device near strong magnetic fields.

  5. Electrostatic discharge can disturb the normal usage of this device. If so, simply reset and restart the device following the instruction manual.
    During file transmission, please handle with care and operate in a static-free environment.

  6. Warning! Never insert an object into the product through the vents or openings. High voltage flows through the product and inserting an object can cause electric shock and/or short circuit internal parts. For the same reason, do not spill water or liquid on the product.

  7. Do not use in wet or moist areas such as bathrooms, steamy kitchens or near swimming pools.

  8. The apparatus shall not be exposed to dripping or splashing and make sure that no objects filled with liquids, such as vases, are placed on or near the apparatus.

  9. Do not use this device when condensation may occur. When the unit is used in a warm wet room with damp, water droplets or condensation may occur inside the unit and the unit could maybe not work properly; let the unit stand in power OFF for 1 or 2 hours before turning on the power: the unit should be dry before getting any power.

  10.  Although this device is manufactured with the utmost care and checked several times before leaving the factory, it is still possible that problems may occur, as with all electrical appliances. If you notice smoke, an excessive build-up of heat or any other unexpected phenomena, you should disconnect the plug from the main power socket immediately.

  11. This device must operate on a power source as specified on the specification label. If you are not sure of the type of power supply used in your home, consult your dealer or local power company.

  12.  Keep away from rodents. Rodents enjoy biting on power cords.

  13. To clean the device, use a soft dry cloth. Do not use solvents or petrol-based fluids. To remove severe stains, you may use a damp cloth with diluted detergent.

  14. The supplier is not responsible for damage or lost data caused by malfunction, misuse, modification of the device, or battery replacement.

  15. Do not interrupt the connection when the device is formatting or transferring files. Otherwise, data may be corrupted or lost.

  16. If the unit has a USB playback function, the USB memory stick should be plugged into the unit directly. Don’t use a USB extension cable because it can cause interference resulting in failure of data.

  17. The rating label has been marked on the bottom or back panel of the apparatus.

  18. This device is not intended for use by people (including children) with physical, sensory, or mental disabilities, or a lack of experience and knowledge unless they’re under supervision or have received instructions about the correct use of the device by the person who is responsible for their safety.

  19. This product is intended for nonprofessional use only and not for commercial or industrial use.

  20. Make sure the unit is adjusted to a stable position. Damage caused by using this product in unstable position vibrations or shocks or by failure to follow any other warning or precaution contained within this user manual will not be covered by warranty.

  21. Never remove the casing of this apparatus.

  22. Never place this apparatus on other electrical equipment.

  23. Do not allow children access to plastic bags.

  24. Only use attachments/accessories specified by the manufacturer.

  25. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as the power supply cord or the plug, when the liquid has been spilled or objects have fallen into the apparatus when the apparatus has been exposed to rain or moisture does not operate normally or has been dropped.

  26. Prolonged exposure to loud sounds from personal music players may lead to temporary or permanent hearing loss.

  27. If the product is delivered with a power cable or AC power adaptor :
    • If any trouble occurs, disconnect the AC power card and refer servicing to qualified personnel.
    • To completely disconnect the power input, the main plug of the apparatus shall be disconnected from the mains, as the disconnect device is the main plug of the apparatus.
    • Don’t step on or pinch the power adaptor. Be very careful, particularly near the plugs and the cable’s exit point. Do not place
    heavy items on the power adaptor, which may damage it. Keep the entire device out of children’s reach! When playing with the power
    cable, they can seriously injure themselves.
    • Unplug this device during lightning storms or when unused for a long period.
    • The socket outlet must be installed near the equipment and must be easily accessible.
    • Do not overload ac outlets or extension cords. Overloading can cause fire or electric shock.
    • Devices with class 1 construction should be connected to a main socket outlet with a protective earthed connection.
    • Devices with class 2 construction do not require an earthed connection.
    • Always hold the plug when pulling it out of the main supply socket.
    Do not pull the power cord. This can cause a short circuit.
    • Do not use a damaged power cord or plug or a loose outlet. Doing so may result in fire or electric shock.

  28. If the product contains or is delivered with a remote control containing coin/cell batteries:
    Warning:
    • “Do not ingest battery, Chemical Burn Hazard” or equivalent working.
    • [The remote control supplied with] This product contains a coin /button cell battery is swallowed, it can cause severe internal burns in just 2 hours and can lead to death.
    • Keep new and used batteries away from children.
    • If the battery compartment does not close securely, stop using the product and keep it away from children.
    • If you think batteries might have been swallowed or placed inside any part of the body, seek immediate medical attention.

  29. Caution about the use of Batteries:
    • The danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type.
    • The battery cannot be subjected to high or low extreme temperatures, low air pressure at high altitude during use, storage or transportation.
    • Replacement of a battery with an incorrect type can result in an explosion or the leakage of flammable liquid or gas.
    • Disposal of a battery into fire or a hot oven, or mechanically crushing or cutting of a battery, that can result in an explosion.
    • Leaving a battery in an extremely high temperature surrounding environment can result in an explosion or that leakage of
    flammable liquid or gas.
    • A battery subjected to extremely low air pressure may result in an explosion or the leakage of flammable liquid or gas.
    • Attention should be drawn to the environmental aspects of battery disposal.

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.

* These instructions are related only to products using power cable or AC power adaptor.

COMPONENTS, FEATURES, AND CONNECTIONS

  1. Counterweight

  2. Anti-skating Stub

  3. Turntable Platter

  4. Tonearm Lift Lever

  5. Tonearm Rest

  6. 33/45 Selector

  7. Tonearm

  8. Stop/Start Knob

  9.  Cartridge

  10. Lid

  11.  Lid Hinge

  12. Ground Connector

  13. PHONO & Line Out Jacks

  14.  PHONO & Line Out Switch

  15. Anti-skating Weight

  16. USB-PC port

  17. AC-DC Power Jack

  18. Bluetooth Indicator

  19. Power Rocker Switch

Please check thoroughly and make sure you find the following items that

come along with this package:

  1. Unit
  2. Adaptor with EU-UK plug-end
  3. Counterweight
  4. Platter with Belt
  5. 45 RPM Adaptor
  6. Turntable mat| 7) Instruction Manual
  7. Cartridge Alignment Protractor
  8. USB-PC Cable
  9. 2pcs lid spare rubber
  10. Anti-skating Weight
  11. Line out cable
    ---|---

This turntable is supplied with a factory-fitted and adjusted cartridge.
**The following instructions for adjusting the cartridge are provided in case the cartridge is replaced by a different model at a later date.

Installing the Lid

Install the Lid carefully over the hinge prongs.

Turntable Platter and Belt Setup

  1. Install the drive belt over the inner ring under the platter and make sure it won’t fall off during the setup.

  2. Place the platter through the turntable spindle, then rotate the platter until you see the drive motor pulley through the window at the top left corner.

  3. Carefully grab the drive belt and put it around the slot of the motor pulley.

  4. Connect the power adapter to the turntable and power on the turntable.

  5. Set the Motor Start/Stop switch to the Start position to see if the platter motor spins. If the platter does not spin, try the steps listed above again.

Cartridge Downforce Adjustment

The Counterweight supplied is suitable for cartridges weighing between 3.0-6.0g.
– Gently push and turn the Counterweight onto the rear of the tonearm (with the scale facing toward the front of the turntable).
– Remove the cartridge protection cap.
– Lower the tonearm lift and position the cartridge in the space between tonearm rest and platter.
Carefully rotate the Counterweight until the tonearm balances out. The tonearm should return to the balanced position if it is moved up or down.
This adjustment must be done carefully.

– Once the tonearm is correctly balanced return it to its’ rest. Hold the Counterweight without moving it, and gently rotate the Downforce Scale ring until the zero is in line with a black line on the rear of the tonearm.
Check whether the arm still balances out.

– Rotate the counterweight counterclockwise (seen from the front) to adjust the downforce according to the cartridge manufacturer’s recommendations. One mark on the scale represents 0.05g of downforce.

NOTE:  The recommended downforce for the factory fitted cartridge is 3.0±0.5g.

Locate the anti-skating weight
You will find an anti-skating weight with a small fishing line from the package, please follow the below steps to locate the anti-skating weight:

  1. Slip the looped end of the fishing line over the anti-skating weight adjustment stub and into Groove 3 (the correct anti-skating force for the factory-fitted cartridge).

  2. Pull the anti-skating weight slightly to let the tie of the fishing line move to the stub.

  3. Lift the anti-skating weight over the anti-skating weight wire support.

The anti-skating weight should now be dangling in free space to the left of support.

Slip the loop of the anti-skating weight’s thread over the 3nd groove of the stub to set the correct anti-skating force for the factory-fitted cartridge. Feed the thread through the loop of the wire support.

Anti-skating force adjustment

The anti-skating force must be adjusted corresponding to the downforce as follows:

Down force
5 – 10mN
10 – 15mN
15 – 20mN
20mN and bigger| Groove in the stub
1 st from bearing rings
2 nd ” ” ”
3 rd ” ” ”
4 th ” ” “|
---|---|---

Slip the loop of the anti-skating weight’s thread over the 3rd groove of the stub to set the correct anti-skating force for the factory-fitted cartridge. Feed the thread through the loop of the wire support.

Stereo System connection

RCA Jacks

  • The RCA jacks of this unit are shared as both the Phone output jacks and the Line output jacks. They are determined by the Phono/Line Switch.

  • When used as a line output, the jacks output analog line-level signals and could be connected directly with a pair of active speakers or the appropriate input of your stereo system. When used as a Phono output, they should be connected to the phono pre-amplifier or the phono input of the stereo system.

  • The Red plug connects with the Right channel and the White plug connects with the Left channel.
    Note:

  •  If the Phono/Line switch is set at LINE position but RCA jacks connected to the stereo system’s phono input, the sound might be distorted due to input overload and could damage your stereo system.

  • If the Phono/Line switch is set at PHONO position but RCA jacks connected to the stereo system’s line input, the volume will be very low due to lacking signal pre-amplification.
    RCA Jack is not designed to be connected directly to the passive/unpowered speakers and if it does, the volume will be very low.

Main Power Connection

The power adaptor is in the foam packing material. Unpack the power adaptor and plug the small end into the DC power jack located at the backside of the turntable. Plug the power adaptor into your power outlet.

Operation

Turntable Operation

  1. Connect the included power adapter to the unit and press the power rocker switch to be “ON” position.
  2. Remove the needle cover from the cartridge.
  3. Place the slipmat on the platter and place a record on the slipmat. If using 45 RPM records, but the 45 RPM adapter on the center spindle before placing the record on the platter.
  4. Set the 33/45 RPM Selector according to the type of record.
  5. Turn the Start/Stop dial to the Start position to begin spinning the platter.
  6. Unlock the arm clip and set the Lift Lever to the up position.
  7. Position the tonearm over the desired location (groove) on the record.
  8.  Move the tonearm lift lever to the down position to move the tonearm toward the record. Alternatively, place the needle over the desired location on the record.
  9. Carefully lower the tonearm on the record.
  10. When you are finished playing the record, raise the tonearm, return it to rest on the arm clip, and turn the Start/Stop dial to the Stop.

Bluetooth Operation
This unit has a Bluetooth transmitter to send audio to a Bluetooth speaker wirelessly.

  1. Power on your Bluetooth speaker and ensure it is in pairing mode.

  2. Power on the unit, the BT will auto search when the unit turns on, the BT indicated light flashing.

  3. When pairing, the light will flash twice per second, then change to be long lighting when paired;
    Note: This unit will connect to the closest Bluetooth speaker that is near it. If after 2 minutes no Bluetooth speaker can be found to pair with, the Bluetooth transmitter will become inactive and the LED will turn off.

  4. To disconnect pairing, power off the turntable or turn off Bluetooth pairing on your Bluetooth speaker.
    “This product has a Bluetooth transmission function, you can not receive any Bluetooth sound on it: this means that you can transmit wirelessly a Bluetooth sound signal to an external device like a Bluetooth speaker, Bluetooth headphone, audio system with Bluetooth reception,…”

Recording the LP into PC through USB jack:
For installing and recording steps please refer to the BRIEF INTRODUCTION OF AUDACITY. http://audacity.sourceforge.net/
Recording the vinyl to your computer:

  1. Follow the detailed step above Turntable Operation to play the vinyl.
  2. Double click the Audacity and follow the record steps shown on the
    BRIEF INTRODUCTION OF AUDACITY.

Audacity and USB Connection
It supports Windows95/Window XP/Window 7/Vista or more advanced version, with the EMS memory of more than 128MB and Audacity take space of 5MB.

Instruction for PC Encoding

  1. Software instruction
    1.1) Connect the USB cable with your turntable and your computer.
    No extra driver is required.
    1.2) Download the Audacity software from http://audacity.sourceforge.net/
    Follow the instructions to complete the installation.

  2. Recording
    2.1) Open the software

    2.2) Choose “Edit” menu, then choose “Preferences”;

    2.3) Audacity Preferences

    NOTE: you need to check your computer audio properties, the sound recording should be selected: SSS USB Audio Device” as below:

    2.4) Adjust the output and input volume

    2.5) Select the record button ● to record the disc, the left and right tracks will show on the interface:

    2.5.1 ⑤ Press this button • , start recording.
    2.5.2 ⑥ Click the  button to skip to start;
    2.5.3 ⑦ Click the  button to skip to end;
    2.5.4 ⑧ Click the  button to play;
    2.5.5 ⑨ Click the  button to pause the record play;
    2.5.6 ⑩ Click the  button to stop the recording.

  3. Export the Music Files for WAV, MP3, Format.

  • Once you have finished recording, you should save your music to the computer.
  • Click File menu and move down to Export as WAV format, MP3 format or Ogg format.
  • Click on any format to save the music, and you will be asked for the file name of the music recording.
  • Note: Audacity does not export MP3 files directly; you should download the LAME MP3 encoder. A link to find LAME MP3 can be found at http://audacity.sourceforge.net
    If do not see the sound wave on the interface, when recording, please adjust the line-in volume as follows:

Specific Steps as follows:

  1. Download the “lame_enc.dll” file, and install it to the software list.

  2. Open the “Audacity” software, click Main Menu, Select “edit”, “Parameter”, “File Formats”, and click the “Searcher”.

  3. After opening, it will come to the following menu, click “YES” to go to “Llame_enc.dll”, and find the file’s location.

  4. After you find the “lame_enc.dl” file, open it and click “Y” to finish the installation.

Maintenance and Cleaning

Your turntable requires little or no regular maintenance. Remove dust with a slightly damp antistatic cloth. Never use a dry cloth, this will create static electricity and attract more dust! Antistatic cleaning agents are available at specialist stores but must be applied sparingly to avoid damage to rubber parts. It is recommended to install the needle cover before cleaning or maintenance is carried out to avoid damage.
If the turntable is not used over a long period of time, the drive belt should be removed to prevent unequal stretching.

NOTE: Always disconnect the record player from the power supply as a precaution before maintenance!

Useful Tips
The turntable should be positioned on a low-resonance surface such as wood or multiple layer plyboard to avoid structural vibrations disturbing playback.

Cartridge Replacement

  1. Before replacement, put the stylus protector back on the stylus to prevent damage to the stylus during the replacement process.

  2. Carefully remove the wire leads from the original cartridge.

  3. Loosen the two screws on the headshell that are securing the cartridge and then remove the original cartridge.

  4.  Mount the new cartridge to the headshell and tighten it lightly. Do not completely tighten the screws at this moment.

  5. Connect the wire leads to the new cartridge’s terminals. The wire lead color codes are as below:
    White Left channel positive (L+)
    Black Left channel negative (L–)
    Red Right channel positive (R+)
    Black Right channel negative (R-)

  6.  Adjust the cartridge’s position to make sure it is precisely aligned on the headshell so that the stylus will be tracking the grooves in parallel perfectly.
    To achieve this, place the included paper cartridge alignment protractor over the turntable spindle, carefully lift the tonearm and place the tip of the stylus on the points marked 130mm and 250mm respectively. Fine-tune the cartridge’s position on the headshell until the cartridge is perfectly in parallel with the reference lines at both points.

  7. Tighten the screws completely once the perfect alignment is achieved.

NOTE: If you are unfamiliar or uncomfortable with completing this procedure, we recommend consulting with a professional to perform the installation.

Technical Specifications:

Nominal Speeds 33 1/3 & 45RPM
Speed Variance ±1%
Wow and Flutter ≤0.15%
Signal to Noise 55dB
Downforce Range 3.0-6.0g
Effective Tonearm Length 8.6” (218.5mm)
Overhang 0.73in
Power Consumption 5W (Max)
Outboard Power Supply 12V/500mA AC-DC
Dimensions (W x H x D) 420 x 360 x 125mm
Weight 4.8kgs

Technical Specifications: AT-3600L (audio-Technica)

Frequency response 20Hz-20kHz
Recommended load resistance 47kohms
Channel balance <2.5dB
Amplifier connection MM – input
Channel separation >18dB
Recommended tracking force 3.0±0.5g
Output voltage 2.5mV
Weight 5g

Potential Incorrect Use and Fault Conditions
These turntables are manufactured to the highest standards and undergo strict quality controls before leaving the factory. Faults that may possibly occur are not necessarily due to material or production faults but can sometimes be caused by incorrect use or unfortunate circumstances.
Therefore the following list of common fault symptoms is included.

The platter doesn’t turn although the unit is switched on:
– The unit is not connected to the main power supply.
– No power at the outlet.
– Drive belt is not installed or has slipped off.
– The unit automatically switched in standby mode, power OFF and ON again on the backside.

No signal through one or other channel or both channels:
– Phone input not selected at the amplifier.
– Amplifier is not switched on.
– Amplifier or speakers muted.
– No connection to the speakers.
– No connection between turntable and amplifier.
– Wire leads are not connected to the cartridge.

Strong hum on phono input:
– No ground connection from the cartridge, arm, or arm cable to amplifier or ground loop.
– Turntable too close to speakers.

Distorted of inconsistent sound from one or both channels:
– Turntable is connected to wrong input of the amplifier.
– Needle or cantilever damaged.
– Drive belt overstretched or dirty.
– Platter bearing without oil, dirty or damaged.
– Dust on the stylus.
– MM/MC switch on pre-amplifier set incorrectly.

Remark: Due to the ERP Stage 2 requirements for power-saving measures, a unit that is connected to the mains power will switch itself to standby mode automatically if no music has been playing for about 20 minutes.
If your unit switches off regularly, this is no defect.

Power supply adaptor
Manufacturer: BRIGHT POWER OPTOELECTRONIC TECHNOLOGY CO., LTD
Model number: SW1200500-FM
Use only the power supply listed in the user instructions

Guarantee

Lenco offers service and warranty in accordance with European law, which means that in case of repairs (both during and after the warranty period) you should contact your local dealer.
Important note: It is not possible to send products that need repairs to Lenco directly.
Important note: If this unit is opened or accessed by a non-official service center in any way, the warranty expires.
This device is not suitable for professional use. In case of professional use, all warranty obligations of the manufacturer will be voided.

Disclaimer
Updates to Firmware and/or hardware components are made regularly.
Therefore some of the instructions, specifications, and pictures in this documentation may differ slightly from your particular situation. All items described in this guide are for illustration purposes only and may not apply to a particular situation. No legal rights or entitlements may be obtained from the description made in this manual.

Disposal of the Old Device
This symbol indicates that the relevant electrical product or battery should not be disposed of as general household waste in Europe. To ensure the correct waste treatment of the product and battery, please dispose of them in accordance to any applicable local laws of the requirement for disposal of electrical equipment or batteries. In so doing, you will help to conserve natural resources and improve standards of environmental protection in the treatment and disposal of electrical waste (Waste Electrical and Electronic Equipment Directive).

CE Marking
 Products with the CE marking comply with the EMC
Directive (2014/30/EU) and the Low Voltage Directive (2014/35/EU) issued by the Commission of the European Community.
Hereby, Lenco Benelux BV, Thermiekstraat 1a, 6361 HB Nuth, The Netherlands, declares that this product is in compliance with the essential requirements.
The declaration of conformity may be consulted at techdoc@lenco.com

Service
For more information and helpdesk support, please visit www.lenco.com
Lenco Benelux BV, Thermiekstraat 1a, 6361 HB Nuth, The Netherlands.

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