LENCO CD-3772 MP3 Operating Instructions Manual

MP3-CD PLAYER

®

CD-3772 MP3

OPERATING INSTRUCTIONS

Please read this manual thoroughly before operating your new CD player.

Avoid installing the unit in locations described below.

• Places exposed to direct sunlight or close to heat radiating appliances such as electric heaters.

• On top of other stereo equipment that radiates too much heat.

• Places lacking ventilation or dusty places.

• Places subject to constant vibration.

• Humid or moist places.

This product utilizes a laser.

- Invisible laser radiation is present when unit is opened and interlock failed or defeated.

Danger
Caution

hazardous radiation.

THIS LASER COMPACT DISC PLAYER FUNCTIONS BY HELP OF INVISIBLE LASER LIGHT AND IS
EQUIPPED WITH SAFETY SWITCHES TO AVOID XPOSURE WHEN DOOR IS OPEN AND SAFETY
INTERLOCKS ARE DEFEATED.ITIS DANGEROUSTO DEFEATORBYPASS SAFETYSWITCHES.

- Use of the controls or adjustments of procedures other than those specified herein may result in

IMPORTANT NOTES

DANGER: INVISIBLE LASER RADIATION
WHEN OPEN AND INTERLOCK FAILED OR
DEFEATED. AVOID DIRECT EXPOSURE TO
BEAM.
CAUT1ON: HAZARDOUS LASER RADIATION
WHEN OPENAND INTERLOCKDEFEATED.
ATTENTION: RAYONMENT LASER
DANGEREUX SI OUVERT AVEC
L'ENCLENCHEMENT DE SECURITE
ANNULE.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK, DO NOT REMOVE COVER (OR BACK). NO
USER-SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICEPERSONNEL.

DANGEROUS VOLTAGE

Uninsulated Dangerous Voltage,thatmaybeof
sufficient magnitude to constitute a risk of electric
shock to persons is present within this product's
enclosure.

ATTENTION

The Owner's Manual contains important
operating and maintenance instructions.
For your safety, it is necessary to refer to the
manual.

IMPORTANT NOTES

Hearing is very important to you and to us so please take care when
operating this equipment. It is strongly recommended that you follow the
listed guidelines in order to prevent possible damage or loss of hearing:

ESTABLISH A SAFE SOUND LEVEL

• Over time your hearing will adapt continuous loud sounds and will give the
impression that the volume has in fact been reduced. What seems normal to you
may in fact be harmful. To guard against this BEFORE YOUR HEARING
ADAPTS set the volume at a low level.

• Slowly increase the level until you can hear comfortably and clearly and
without distortion.

• Damage to your hearing is accumulative and is irreversible.

• Any ringing or discomfort in the ears indicates that the volume is too loud.

Once you have established a comfortable listening level, DO NOT INCREASE
THE SOUND LEVEL FURTHER.

The following list of typical sound levels may assist you in recognizing just how
loud you have set the volume level.

DECIBEL
Level dB Example

30dB Quiet library, soft whisper.
40 Living room, fridge freezer bedroom away from traffic.
50 Normal conversation, quiet office, light traffic.
60 Electric sewing machine.
70 Vacuum cleaner, hair dryer, noisy restaurant.

THE FOLLOWING NOISE CAN BE HARMFUL UNDER CONSTANT EXPOSURE

80dB Average city traffic, alarm clock buzzer at 2 feet, food mixer.
90dB Motorcycle, heavy goods vehicle, petrol lawn mower.
100 Pneumatic drill, chain saw, garbage truck, discotec / night-club.
120 Rock band concert, thunderclap.

PERMANENT LOSS OF HEARING

140 Gunshot 2 feet away.
180 Rocket Launching pad.

THRESHOLD OF PAIN

WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT
EXPOSE THIS UNIT TO RAIN OR MOISTURE.

1. POWER SOURCES NORMAL BATTERIES/AC ADAPTOR

2. DIGITAL ANTI SHOCK OPERATION

AND RECHARGEABLE BATTERY OPERATION

Battery Power Operation AC Operation

1. Open the battery compartment
cover and insert two 'AA' alkaline
batteries inside the battery
compartment. Follow the polarity
as indicated on the bottom of the
cabinet.

2. Close the battery compartment
cover.

1. Insert the DC plug, at the end of the
AC adaptor cord into the DC input
jack, at the rear of the unit.

2. Plug the AC adaptor into a 120V
AC power outlet socket.

Note

If the AC plug of this unit

does not fit in your AC outlet, a plug

Average Playing

(Continuous Play)

Battery Type

Alkaline
MN 1500, LR 6
or Equivalent

Ni-CAD
rechargeable
(min. specification
recommended

1.2V-650mA)

Note: Zinc/Carbon, or Zinc/Chloride type
batteries are not recommended for this unit
as their use will result in extremely short
playing times. Wherever possible and for
economy it is recommended that the
mains adaptor supplied with this unit is used.

MP3 play

Mode

4 Hours

2 Hours

Time

CD Play

Mode

6 Hours

3 Hours

adaptor (not included) should
used.
Consult your local dealer on the type
of plug adaptor required.

be

DIGITAL ANTI SHOCK OPERATION

This player incorporates the latest digital anti shock circuit, which prevents
interruption of the sound output if the unit is subjected to shock or vibration during
disc playback. The anti shock system will automatically start when a disc is played,

is shown in the display during start up. If the anti shock function is not required

then it can be switched off by pressing the ESP button.

ESP

To turn this function off press the ESP button.

Notes:

1. When using the ANTI SHOCK function the battery power consumption
increases because the disc rotates faster than normal and the dynamic memory
is active.

2. Whilst the ANTI SHOCK function provides for continuous sound output when
the unit is subjected to shock or vibration. It will not correct errors arising from
the use of defective scratched or dirty discs.

3. When powering the player solely from batteries, only use the ANTI SHOCK
function where necessary to preserve their life.

RECHARGEABLE BATTERY OPERATION

1. Open the battery compartment cover and insert two of the recommended
rechargeable batteries, matching polarity. (1.2V 650mA)

ALL BATTERIES MUST BE OF RECHARGEABLE NICKEL-CADMIUM TYPE,
OTHERWISE THE BATTERIES MAY EXPLODE OR LEAK.

2 x LR6 "AA" alkaline battery

+

WARNING
ENSURE THAT THE BATTERY
CHARGE SWITCH IS OFF WHEN
USING THE AC ADAPTOR WITH
NON RECHARGEABLE
BATTERIES INSTALLED.

2. Plug in the AC adaptor and set the Recharge switch to ON position to start
charging. During charging the RED LED charge indicator will illuminate.

USE ONLY THE AC ADAPTOR SUPPLIED WITH THE SET FOR CHARGING

3. After 15 hours. Please unplug the AC adaptor and switch the Recharge switch to
the OFF position.

DO NOT CHARGE CONTINUOUSLY FOR 24 HOURS OR MORE. DOING SO
CAN CAUSE THE PERFORMANCE OF THE RECHARGEABLE BATTERIES
TO DETERIORATE.

3. EARPHONE AND HI-FI CONNECTION

5. DISC CLEANING AND TROUBLESHOOTING GUIDE

Listening with the Headphones

Connect the plug of the stereo
earphones (not included) or
headphones the
(Green) of the

(included) into

socket on the side

player.

Caution: Avoid excessive
levels and listening to
period of time

when using headphone,

volume

sound for a long

as this may impair your hearing.

DBBS

ON OFF

VOLUME

Adjust Volume to the
desired level.

PHONES LINE OUT

To

CHARGE

ON OFF

Connecting to component audio
systems

Connect a stereo connection cable
(not included) into the LINE OUT
(BLACK) socket of the unit and the
CD/AUX inputs of an audio system.

Note: Always switch the power off
before making any connections
between the player and another unit.

DBBS

ON OFF

VOLUME

To Line Out

To CD / AUX INPUT

PHONES LINE OUT

CHARGE

ON OFF

4. PLAYER MAINTENANCE

Cleaning the Cabinet

Wipe with a soft cloth. If the cabinet is very dirty, dampen the cloth with a weak
of neutral detergent and water, and then wipe clean.

solution

Cleaning the Disc

When a disc becomes dirty, clean
it with a cleaning cloth. Wipe the
disc from the centre out.

Note

Do not use solvents such as benzine petrol, thinner, commercially available
cleaners or anti-static spray intended for analogue discs.

Should you experience difficulties in the use of this player please refer to the
following chart before contacting your dealer or the place of purchase.

Troubleshooting Guide

Problem

Player fails to function

No sound from
Earphones

Points to Check

CDRW disc used - not supported on this model
Disc may be inserted upside down
Disc not mounted correctly on chuck
Dirty or defective disc
Dirty pick up lens
Player lid not closed
Moisture/Condensation, allow player to warm up to room
temperature for 60 minutes
AC power to adaptor switched off
Weak batteries

Auto power off has occurred, press play button to restore power

Earphone plug is not firmly inserted into the Green Phones
socket.
Earphone have been inserted into the Black line output
socket.

Cleaning the Lens

A dirty lens will cause sound skipping and, if the lens is very dirty, the CD may
Open the disc cover and clean the lens as follows:

Dust or Dry Particles

Using a camera lens brush/blower, blow on the
lens couple times, then wipe it lightly with
brush to remove dust. Then, blow on the
once more.

Finger prints

If the lens cannot be cleaned by using a brush/blower, use a dry cotton swab
in the middle and working to the outside edge.

the

lens

not work.

starting

No sound when played
through an external amplifier

Intermittent sound

Connection is incorrect
Power to external amplifier not switched on

Dirty or defective disc
Dirty pick up lens
Player is subject to excessive vibration or shock
Low battery power
Poor Earphone connection

6. PRODUCT SPECIFICATIONS

7. BASIC DISC PLAY

PICK-UP

System

Laser diode

Properties

Error correction

Compact disc digital audio system

Material: GaAlAs

Wavelength : = 780nm
Emission duration : continuous
Laser output : <44.6 W

Cross-interleave Reed-solomon code

AUDIO

D/A conversion
Frequency response

MP3 playback

Wow and flutter Below measurable limits

No. of channels

Output level

Bass boost effect (100Hz)

1-bit DAC 8 times oversampling

20-20, 000Hz ( +1/-3 dB )

25 seconds buffer

2 channels ( stereo )

Line output : 0.6 V rms ( 47 K )
Earphone: 20 mW ( 32 )

+6 dB

GENERAL

Power requirements

Power consumption

Dimension

Weight

- 2 x LR6 " AA " alkaline battery

- DC in 4.5V jack accepts AC power adaptor
(centre positive)

0.8W (DC 3V) UNDER NORMAL CONDITION

Approx. 130 (W) x 33 (H) x 143 (D) mm

Approx.200g not including battery (Main Unit)

3

DBBS

2

ON OFF

VOLUME

PHONES LINE OUT

CHARGE

ON OFF

1

Remove the disc

Hold the edge and gently press
the centre pivot as illustrated,
then pick up the disc.

CAUTION:

Wait for the disc to stop rotating
before pressing the OPEN button.

NOTE:

This unit can play 3" (8cm) single
CD's without an adaptor. Do not
use a CD single adaptor for these
discs.

1. Connect the Headphones to the
PHONES (GREEN) socket.

2. Press the OPEN button to open the
CD compartment lid.

3. Adjust the VOLUME to minimum.

4. Insert the disc with the label side
Facing up. Push down in the centre
until disc is locked in place.

5. Close the lid securely until a click is
heard.

6. Press the PLAY button to start playing.

.

To Emphasize the bass sound

Set the BASS BOOST (DBBS) switch
to the ON position.

DBBS

ON OFF

Note

The bass boost performance will be
dependant on the VOLUME control
setting.

Turning Power on and off

This unit has no ON/OFF switch.
To turn on and off, press the following
buttons.
To turn on: Press PLAY/PAUSE

(playback Starts)

To turn off: Press STOP button

once to standby mode.
Press STOP button
again, to turn off the
power.

Auto power - off function

When the unit is stopped (standby
mode) for approximately 60 seconds,
the power is automatically turned
off.

8. LCD DISPLAY INFORMATION

9. REPEAT/PLAY MODES

When the is pressed at initial start up

The display will briefly show and
then proceed to start playback.
To review the total number of ALBUM and tracks

the disc and total disc times, press the

on

STOP button once.

A: TOTAL ALBUM
B: TOTAL TRACK

AB C

C: JUST SHOWS MP3
D: JUST SHOWS
E: TOTAL TRACK
F: TOTAL DISC TIME.

MP3 DISC

During PLAY mode

The track number and the elapsed playing
Time are displayed.

Album No. Track No. Elapsed time

MP3 DISC

During PAUSE mode

The track playback is paused, the elapsed
time flashes.

ESP

DE F

CD DISC

Track no

Elapsed time

CD DISC

Every time the CD MODE button is pressed.
The corresponding mode appears in the display window.

NORMAL

REPEAT 1

REPEAT 1 ALBUM

ALBUM ALBUM

RND

MODE

RANDOM

During playback or stop

Show on the LCD display.
The current track on the
disc will be repeated.

During playback or stop

ALL

Show on the LCD display.
All tracks on the disc will
be repeated.

During playback or stop

ALBUM

MP3 Disc only

Show on the LCD
display. All tracks of the
album on the disc will
be repeated.

REPEAT ALL ALBUM

ALL

INTRO

INTRO

x1

MODE

x2

MODE

x2

MP3 DISC

CD DISC

Note

When lid is opened during play mode " " shows in the display is indicating

ANTI-S

the door still open.

Note

A flashing indication appears on the

display when the batteries need to be

changed.

MODE

During playback or stop

x3

ALL ALBUM

MP3 Disc only

Show on the LCD
display. All tracks on
the disc will be
repeated.

MODE

NOTE: In normal mode none of the above symbols show in the display.

NORMAL PLAYBACK

Press once to play

Play the whole disc

x1

PLAY/PAUSE

10. INTRO SCAN AND PROGRAMMED TRACK PLAY

10. INTRO SCAN AND PROGRAMMED TRACK PLAY

( Continued )

During playback

INTRO

Play the first 10 seconds of each track on the disc.

INTRO

MODE

When in the STOP mode press the MODE button three times and then
PLAY/PAUSE button to start INTRO playback.
During disc playback press the MODE button three times and then press
forward INTRO will start

skip button to start INTRO playback . Alternatively

at the end of the current playing track.

NOTE: To select the INTRO function in MP3 disc, press the MODE button four times.

x3

press the

the

PROGRAMME

This allows selected tracks on the disc to be played in any desired order.

To set the programme play in CD

Programmes can set in the STOP mode.

1. Press the PROGRAM button when the
unit is in the stop mode.

PGM

The indicator display.

appear in the

2. Press or to select the desired
track.

3. Press the PROG button to enter the track
into the memory.

4. Repeat step 2 and 3 to program up to 64
tracks memory.

5. Press to start the programmed play.

6. To erase the program, press the STOP

button twice.

Track no. of the first
desired selection

The second selection

PGM

PGM

PGM

( Continued )

Press or to select the desired ALBUM

2.
number.
Press the PROGRAM button to enter the ALBUM

3.
number into the memory.
Press or to select the desired track.

4.
Press the PROGRAM button to enter the track

5.
into the memory.
Repeat step 2 to 5 to program up to 64 tracks

6.
memory.
Press to start the programmed play.

7.
To erase the program, press the STOP button

8.
twice.

11. RANDOM PLAY

RAND

Enables all the tracks on a disc to be played in a Random ( Shuffle ) sequence.

For example :
will commence once track 8 has ended.
When all tracks on a disc
and power down in approx. 60 seconds to preserve battery life.

CD DISC

Press MODE button again to return to the NORMAL play mode.

If "RAND" is selected while playing track 8, the random function

have been played the player will automatically stop

During playback or stop

RND

x4

MODE

PGM

PGM

PGM

To set the Programme play in Mp3

Programmes can be set in the STOP mode.

1.

Press the PROGRAM button when the unit
is in the stop mode.

PGM

The indicator and ALBUM number
flashes in the display.

PROG

x1

PGM

During playback or stop

RND

MP3 DISC

x5

MODE

If there is MP3 Disc in player, the random function will be playback all tracks
of the current album and than automatically go to next album.

12. LOCATION OF CONTROLS

13. SKIP AND SEARCH FUNCTIONS

12

3

5

67

4

8
9
10

11

12

13

Locating a Particular track

To skip back to the beginning of the
current or a previous track

To skip to the beginning of following
tracks

Press lightly and repeatedly.

Press lightly and repeatedly.

Locating a Particular Point in a track

To search back at a high speed

To search forward at a high speed

Low level audio will be heard during the search process to assist in
locating the correct point in the track.
NOTE : Audio is muted when searching in MP3 mode..

Keep depressed

Keep depressed

DISC Navigation in MP3

ALBUM number can be set in the STOP mode or normal play mode.
Press the ALBUM button to select the desired ALBUM number.
Whenever press the ALBUM button.

1516

14

The ALBUM number repeatly changed the following number.

1. PROG BUTTON

2. MODE BUTTON

3. ALBUM BUTTON / ESP

4. SKIP BACKWARD BUTTON

5. STOP BUTTON

6. SKIP FORWARD BUTTON

7. DC INPUT SOCKET

8. RECHARGE SWITCH

9. RECHARGE LED INDICATOR

10.LINE OUT SOCKET

11. EARPHONE SOCKET

12. VOLUME CONTROL KNOB

13. DBBS SWITCH

14. PLAY / PAUSE BUTTON

15. DISPLAY LENS

16. DOOR OPEN BUTTON

14. MP3 DISC OPERATION

Playing MP3 DISC

1. Place an mp3 CD (Pre or home recorded) into the player and ensure it is
locked in place on the centre spindle.

2. Press the to start playback. Allow around 15 seconds for the disc to
be read and playback to start. Playback will start from Album 1 track 1.

3. Press the button to stop playback.

MP3 Support (MPEG 1, layer 1/2/3)

1. Sampling frequency : 32KHz, 44.1KHz, 48KHz

2. MPEG rate : supported 32 ~ 384 Kbps

3. MP3 playback : ISO9660 format compatible

4. Maximum file support : Album (Directory) 99.

File (Track) 300

During playback During stop mode

The current
number
of album

The current
number
of track

Elapsed
time

Total
number
of albums

Total
number
of tracks

Just shows
MP3 disc