LG CM4620 Mini Hi-Fi System Owner’s Manual

: June 16, 2024
: LG

LG CM4620 Mini Hi-Fi System

LG-CM4620-Mini-Hi-Fi-System-PRODUCT

Product Information

Specifications

Model: CM4620 (CM4620, CMS4620F), CM4520 (CM4520, CMS4520F,CMS4520W), CM4420 (CM4420, CMS4520F), CM4320 (CM4320,CMS4320F)
Product Type: Mini Hi-Fi System
Power Supply: AC 110-240V ~ 50/60Hz
Power Consumption: 60W
Dimensions (W x H x D): 300mm x 250mm x 200mm
Weight: 3.5kg

Product Usage Instructions

Safety Information

CAUTION: This product employs a Laser System.
To ensure proper use of this product, please read this owner’s manual carefully and retain it for future reference. Shall the unit require maintenance, contact an authorized service center.

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

CAUTION concerning the Power cord: Most appliances recommend they be placed upon a dedicated circuit; that is, a single outlet circuit which powers only that appliance and has no additional outlets or branch circuits. Check the specification page of this owner’s manual to be certain. Do not overload wall outlets. Overloaded wall outlets, loose or damaged wall outlets, extension cords, frayed power cords, or damaged or cracked wire insulation are dangerous. Any of these conditions could result in electric shock or fire. Periodically examine the cord of your appliance, and if its appearance indicates damage or deterioration, unplug it, discontinue use of the appliance, and have the cord replaced with an exact replacement part by an authorized service center. Protect the power cord from physical or mechanical abuse, such as being twisted, kinked, pinched, closed in a door, or walked upon. Pay particular attention to plugs, wall outlets, and the point where the cord exits the appliance. To disconnect power from the mains, pull out the mains cord plug. When installing the product, ensure that the plug is easily accessible.

WARNING: Do not install this equipment in a confined space such as a bookcase or similar unit.

CAUTION: Do not block any ventilation openings.
Install in accordance with the manufacturer’s instructions. Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of the product and to protect it from overheating. The openings shall never be blocked by placing the product on a bed, sofa, rug, or other similar appliance.

FAQ

Q: How do I connect the Mini Hi-Fi System to my TV?
A: To connect the Mini Hi-Fi System to your TV, use an RCA audio cable to connect the “Audio Out” or “Headphone” jack on your TV to the “Aux In” jack on the Hi-Fi System. Make sure to select the “Aux” input mode on the Hi-Fi System for audio playback from your TV.

Q: Can I use Bluetooth to connect my smartphone to the Mini Hi-Fi System?
A: Yes, the Hi-Fi System supports Bluetooth connectivity. Simply enable Bluetooth on your smartphone, search for available devices, and select the Hi- Fi System from the list. Once connected, you can play music wirelessly from your smartphone through the Hi-Fi System.

Q: How do I adjust the bass and treble settings on the Hi-Fi System?
A: To adjust the bass and treble settings, press the “Bass” or “Treble” button on the remote control. Use the arrow buttons to increase or decrease the bass or treble level. Alternatively, you can access the bass and treble settings through the menu on the Hi-Fi System’s display panel.

Please read this manual carefully before operating your set and retain it for future reference.
CM4620 (CM4620, CMS4620F),
CM4520 (CM4520, CMS4520F, CMS4520W)
CM4420 (CM4420, CMS4520F), CM4320 (CM4320, CMS4320F)

Getting Started

Safety Information

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR BACK) NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
This lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.

WARNING:

TO PREVENT FIRE OR ELECTRIC SHOCK HAZARD, DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE.
Do not install this equipment in a confined space such as a book case or similar unit.

CAUTION: Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of the product and to protect it from over heating. The openings shall be never be blocked by placing the product on a bed, sofa, rug or other similar surface. This product shall not be placed in a built-in installation such as a bookcase or rack unless proper ventilation is provided or the manufacturer’s instruction has been adhered to.

This product employs a Laser System.To ensure proper use of this product, please read this owner’s manual carefully and retain it for future reference. Shall the unit require maintenance, contact an authorized service centre.
Use of controls, adjustments or the performance of procedures other than those specified herein may result in hazardous radiation exposure.
To prevent direct exposure to laser beam, do not try to open the enclosure.

CAUTION concerning the Power cord
Most appliances recommend they be placed upon a dedicated circuit;
That is, a single outlet circuit which powers only that appliance and has no additional outlets or branch circuits. Check the specification page of this owner’s manual to be certain. Do not overload wall outlets. Overloaded wall outlets, loose or damaged wall outlets, extension cords, frayed power cords, or damaged or cracked wire insulation are dangerous. Any of these conditions could result in electric shock or fire. Periodically examine the cord of your appliance, and if its appearance indicates damage or deterioration, unplug it, discontinue use of the appliance, and have the cord replaced with an exact replacement part by an authorized service center. Protect the power cord from physical or mechanical abuse, such as being twisted, kinked, pinched, closed in a door, or walked upon. Pay particular attention to plugs, wall outlets, and the point where the cord exits the appliance. To disconnect power from the mains, pull out the mains cord plug. When installing the product, ensure that the plug is easily accessible.

This device is equipped with a portable battery or accumulator.
Safety way to remove the battery or the battery from the equipment: Remove the old battery or battery pack, follow the steps in reverse order than the assembly. To prevent contamination of the environment and bring on possible threat to human and animal health, the old battery or the battery put it in the appropriate container at designated collection points. Do not dispose of batteries or battery together with other waste. It is recommended that you use local, free reimbursement systems batteries and accumulators. The battery shall not be exposed to excessive heat such as sunshine, fire or the like.

CAUTION: The apparatus shall not be exposed to water (dripping or splashing) and no objects filled with liquids, such as vases, shall be placed on the apparatus.

The appliance is not intended for use by young children or infirm persons without supervision.
Young Children should be supervised to ensure that they do not play with appliance.
If the appliance is supplied from a cord extension set or an electrical portable outlet device, the cord extension set on electrical portable outlet device must be positioned so that it is not subject to splashing or ingress of moisture.

You have to set the disc format option to [Mastered] in order to make the discs compatible with the LG players when formatting rewritable discs. When setting the option to Live File System, you cannot use it on LG players.
(Mastered/Live File System: Disc format system for Windows Vista)

Unique Features

USB Direct Recording
Records music to your USB device.

Accesories

Please check and identify the supplied accessories.

Playable file Requirement
MP3/WMA music file requirement

MP3/WMA file compatibility with this unit is limited as follows :

Sampling frequency : within 32 to 48 kHz (MP3), within 32 to 48 kHz (WMA)
Bit rate : within 32 to 320 kbps (MP3),40 to 192 kbps (WMA)
Maximum files : Under 999
File extensions : “.mp3”/“.wma”
CD-ROM file format : ISO9660/JOLIET
We recommend that you use Easy-CD Creator, which creates an ISO 9660 file system.

Compatible USB Devices

MP3 Player : Flash type MP3 player.
USB Flash Drive :
Devices that support USB2.0 or USB1.1.
The USB function of this unit does not support all USB devices.

USB device requirement

Devices which require additional program installation when you have connected it to a computer, are not supported.
Do not extract the USB device while in operation.
For a large capacity USB, it may take longer than a few minute to be searched.
To prevent data loss, back up all data.
If you use a USB extension cable or USB hub, the USB device is not recognized.
Using NTFS file system is not supported.
(Only FAT(16/32) file system is supported.)
This unit is not supported when the total number of files is 1 000 or more.
External HDD, Card readers, Locked devices, or hard type USB devices are not supported.
USB port of the unit cannot be connected to PC. The unit cannot be used as a storage device.

Remote control

$LG-CM4620-Mini-Hi-Fi-System-FIG- $4$$

$LG-CM4620-Mini-Hi-Fi-System-FIG- $5$$

Battery Installation

Remove the battery cover on the rear of the Remote Control, and insert two (size AAA) battery with +and – matched correctly

Front panel

$LG-CM4620-Mini-Hi-Fi-System-FIG- $7$$

Display window
USB
You can play or record music files by connecting the USB device.
connects iPod/iPhone by using iPod/iPhone cable.
(Power)
TIMER
With the TIMER function you can turn CD, USB play and TUNER reception on or off at a desired time.
Stops playback or recording.
BASS BLAST
Reinforces the treble, bass and surround effect.
(Skip/Search)
AUTO DJ
Selects the AUTO DJ mode.
(For more information refer to the page 15)
LG EQ
Chooses sound impressions.
VOLUME
USB REC
Records to USB.
CLOCK
For setting the clock and checking the time.
SET/DEMO
Confirms the setting.
Shows demo.
ST./MO.
Starts playback and pauses.
Selects Stereo/Mono.
FUNC.
Selects the function or input source.
(Skip/Search)
Backlightings
(OPEN/CLOSE)
Disc tray

Rear panel

$LG-CM4620-Mini-Hi-Fi-System-FIG- $16$$

Power cord
ANTENNA (FM/AM)
AUX IN (L/R) connectors
Speaker terminals

Connecting

Connecting to speakers

Attaching the speakers to the unit
To connect the cable to the unit, press each plastic finger pad to open the connection terminals on the unit. Insert the wire and release the finger pad.
Connect the black stripe of each wire to the terminals marked – (minus) and the other end to the terminals marked + (plus).

Caution

Be careful to make sure children not to put their hands or any objects into the speaker duct. Speaker duct: A hole for plentiful bass sound on speaker cabinet (enclosure).
The speakers contain magnet parts, so color irregularity may occur on the TV screen or PC monitor screen. Please use the speakers far away from either TV screen or PC monitor.
Make sure to install the speaker with other people in order to prevent it from falling and causing injuries to the installer.

Optional Equipment Connection

AUX IN Connection
Connect an output of auxiliary device(Camcoder, TV, Player, etc) to the AUX IN (L/R) connector.
If your device has only one output for audio(mono), connect it to the left (white) audio jack on the unit.

$LG-CM4620-Mini-Hi-Fi-System-FIG- $18$$

USB Connection
Connect the USB port of USB Memory (or MP3 player, etc.) to the USB port on the front of the unit.

$LG-CM4620-Mini-Hi-Fi-System-FIG- $19$$

Removing the USB Device from the unit.

Choose a different function/mode or press ENTER twice in a row.
Remove the USB device from the unit.

Antenna Connection

Connect the supplied FM/AM antenna for listening to the radio.
Connect the FM wire antenna to the FM antenna connector.
Connect the AM loop antenna to the AM antenna connector.

NOTE

Be sure to fully extend the FM wire antenna. After connecting the FM wire antenna, keep it horizontal.
To prevent noise pickup, keep the AM Loop antenna away from the unit and other components.

Operating

Basic Operations

CD/USB Operations

Insert the disc by pressing (OPEN/CLOSE) or connect the USB device to the USB port.
Select the CD or USB function by pressing FUNCTION on the remote control or FUNC. on the unit.
Select a track/file you want to play by pressing .

Other Operations

Programmed Playback
The program function enables you to store your favorite files from any disc or USB device.

A program can contain 20 tracks/files.

Insert a CD or a USB and wait for it to be ordered.
Press PROGRAM/MEMORY on the remote control in stop status.
Press on the remote control or on the unit to select a track/file.
Press PROGRAM/MEMORY again to save and select a next track/file.
Press to play the programmed music tracks/files.
To clear your selection, press ENTER twice.

NOYE
The programs are also cleared when the disc or USB device is removed, the unit is powered off or the function is switched to others.

Displaying file information (ID3 TAG)
While playing an MP3 file containing file information, you can display the information by pressing INFO.

Searching for a folder

Press PRESET·FOLDER repeatedly until a desired folder appears on the display window.
Press to play it.

The first file of the folder will be played.
Turn off the sound temporarily
Press MUTE to mute your unit.
You can mute your unit, for example, to answer the telephone, the “MUTE” is displayed in the display window.
To cancel it, press MUTE again on the remote control or change the volume level.

Deleting an MP3/WMA file
You can delete a file, folder or format by pressing DELETE. (USB only)

Press DELETE repeatedly during selecting the MP3/WMA file. This function is supported only in stop status. The display changes in the following order.
- DEL FILE : Deletes file.
- DEL DIR : Deletes folder.
- FORMAT : Formats USB.
To delete file/folder or format, press on the remote control or press ST./MO. on the unit.
If you want to exit the current mode,press ENTER on the remote control or press on the unit.

CAUTION

Do not extract the USB device during operation.(play, delete, etc.)
Regular back up is recommended to prevent data loss.
The delete function may not be supported according to the USB status.

DEMO
In the power off state, it demonstrates the function on display window by pressing SET/DEMO.

To cancel the DEMO, press it again.

While DEMO, this unit will keep DEMO status even if you unplug the power cord connection.
You can enjoy other functions during the DEMO. Then the DEMO will pause to temporary. – Without input key in 10 sec, the DEMO will play back automatically.

AUTO DJ playback
Auto DJ blends the end of one song into the beginning of another for seamless playback. It equalizes volume across tracks for uninterrupted playback.
Press AUTO DJ on the remote control or unit repeatedly, the display changes as followings. RANDOM (AUTO DJ RANDOM) -> RPT (AUTO DJ SEQUENTIAL) -> (AUTO DJ OFF)

Mode	Display Window	Description
OFF	– (AUTO DJ OFF)	–

RANDOM

| RANDOM (AUTO DJ RANDOM)| The music is played randomly on this mode.

REPEAT

| RPT (AUTO DJ

SEQUENTIAL)

| The music is played repeatedly on this mode.

NOTE

Searching for a section within a track/file or playing repeatedly or randomly is not supported on the AUTO DJ mode.
If you move to other functions or stop the music using on the unit (or ENTER on the remote control) on AUTO DJ mode, AUTO DJ function will be disable.
AUTO DJ function is not supported in the music file whose length is less than 60 seconds.
During recording, AUTO DJ function is not available.
If you change a disc while the AUTO DJ function is activated, the function is deactivated.,,

Radio Operations

Be sure that FM/AM aerial is connected.
(Refer to the page 12)

Listening to the radio

Press FUNCTION on the remote control or FUNC. on the unit until FM or AM appears in the display window.
The last received station is tuned in.
Press and hold TUNING-/+ on the remote control or on the unit for about two seconds until the frequency indication starts to change, then release. Scanning stops when the unit tunes in a station.
Or
Press TUNING-/+ on the remote control or on the unit repeatedly.
Adjust the volume by rotating volume knob on the unit or by pressing VOL +/- on the remote control repeatedly.

Presetting the Radio Stations
You can preset 50 stations for FM and AM.
Before tuning, make sure to turn down the volume.

Press FUNCTION on the remote control or FUNC. on the unit until FM/AM appears in the display window.
Select the desired frequency by pressing TUNING-/+ on the remote control or on the unit.
Press PROGRAM/MEMORY a preset number will flash in the display window.
Press PRESET·FOLDER to select the preset number you want.
Press PROGRAM/MEMORY. The station is stored.
Repeat steps 2 to 5 to store other stations.
To listen to a preset station, press PRESET·FOLDER or 0 to 9 numerical buttons.

Deleting all the saved stations

Press and hold PROGRAM/MEMORY for two seconds. “ERASE ALL” will flash up on the unit display.
Press PROGRAM/MEMORY to erase all saved radio stations.

Improving poor FM reception
Press ST./MO. on the unit or on the remote control. This will change the tuner from stereo to mono and usually improve the reception.

Sound adjustment

Setting the surround mode
This system has a number of pre-set surround sound fields. You can select a desired sound mode by using SOUND EFFECT on the remote control or LG EQ on the unit.
The displayed items for the Equalizer may be different depending on sound sources and effects.

On Display	Description

NATURAL

| You can enjoy comfortable and natural sound.

Local Specialization equalizer

| Regionally optimized sound effect. (FORRO/FUNK/ SERTANEJO/DANGDUT/ARABIC/ PERSIAN/INDIA/REGUETON/ MERENGUE/SALSA/SAMBA/ CUMBIA/AFRO HIP HOP)

AUTO EQ

| Realizes the sound equalizer that is the most similar to the genre of which is included in the MP3 ID3 tag of song files.
POP CLASSIC JAZZ ROCK| This program lends an enthusiastic atmosphere to the sound, giving you the feeling you are at an actual rock pop, jazz or classic concert.

MP3 — OPT

| This function is optimized for compressible MP3 file. It improves the treble sound.
BASS| Reinforces the treble, bass and surround sound effect.
LOUDNESS| Improves the bass and treble sound.
BYPASS| You can enjoy the sound without equalizer effect.

NOTE

On some speakers, sound may not be heard or heard in low sound depending on the sound mode.
Maybe you need reset the surround mode, after switching the input, sometimes even after the sound track changed.
By pressing BASS BLAST on the unit you can directly select the BYPASS or BASS BLAST sound.

Setting the Clock

Turn the unit on.
Press CLOCK for at least 2 seconds.
Choose time mode by pressing .
- AM 12:00 (for an AM and PM display) or 0:00 (for a 24 hour display)
Press SET/DEMO to confirm your selection.
Select the hours by pressing .
Press SET/DEMO.
Select the minutes by pressing .
Press SET/DEMO.

Setting the alarm
You can use the unit as an alarm clock.
You have to set the clock before setting the alarm.

Turn the unit on.
Press TIMER. Each of functions flashes.
Press SET/DEMO when the function you want to be woken by is showing.
“ON TIME” will be displayed. This is your desired time to the unit turns on. Press to change the hours and minutes and press SET/DEMO to save.
The “OFF TIME” will be displayed. This is your desired time to the unit turns off.
Press to change the hours and minutes and press SET/DEMO to save.
Press to change the volume and press SET/DEMO to save. The clock icon “ “ shows that the alarm is set.
Press TIMER button 2 times. You can check the setting status.

NOTE

If you set the clock time, you can check the time by pressing CLOCK even when the player is turned off.
If you set the clock time and alarm, you can check the alarm icon “ “ by pressing CLOCK even when the player is turned off.
If you set the clock time and alarm, you can check the alarm icon “ “ and setting informaiton by pressing TIMER even when the unit is turned off.
Alarm function is not supported even if you choose USB function as an alarm clock when iPod/iPhone is connected to USB port.

Sleep Timer Setting
Press SLEEP repeatedly to select delay time between 10 and 180 minutes. After the delay time, the unit will be turned off.
To cancel the sleep function, press SLEEP repeatedly until “SLEEP 10” appears, and then press SLEEP once again while “SLEEP 10” is displayed.

NOTE

You can check the remaining time before the unit is turned off.
Press SLEEP. The remaining time appears in the display window.

Dimmer

Press SLEEP once. The display window will be darkened by half. To cancel it, press SLEEP repeatedly until dim off.

Advanced Operations

Playing the iPod/iPhone
You can enjoy the sound with your iPod/iPhone.
For details about iPod/iPhone, refer to the iPod/iPhone User Guide.

Connect iPod/iPhone to the USB port on the front of the unit by using the iPod/iPhone cable.
If you turn this unit on, your iPod/iPhone will be automatically turned on and start recharging.
Press FUNC. on the unit or FUNCTION on the remote control to select USB function. You can operate your iPod/iPhone through an iPod/iPhone’s display by using the remote control and also control on your iPod/iPhone.

$LG-CM4620-Mini-Hi-Fi-System-FIG- $30$$

Compatible iPod/iPhone
We recommend installing the latest software version.

The unit supports the models as follows.

iPod touch 1 G, 2 G, 3 G, 4 G
iPod classic
iPod nano 2 G, 4 G, 5 G, 6 G
iPhone 4S
iPhone 4
iPhone 3GS
iPhone 3G

Depending on your iPod/iPhone’s software version, you may not control your iPod/iPhone from the unit.

NOTE

If this unit displays error message “NO USB” follow check procedure below.- Your iPod/iPhone is not connected firmly. – This unit recognizes your iPod/iPhone as an unknown device. – Your iPod/iPhone is exceptionally low in power./ The battery needs to be charged. / If you charge the battery while iPod/iPhone is extremely low in power, it may take longer to be charged.
iPod/iPhone does not support recording function when connected.yyDepending on your iPod/iPhone’s software version, it may not be possible to control your iPod/iPhone from this unit. We recommend installing the latest software version.
If you use an application, make a call, or send and receive SMS text message, etc. on iPod touch or iPhone, disconnect it from this unit and then use it.
If you have a problem with your iPod/iPhone, please visit www.apple.com/support.

Listening to the sound from your external device
The unit can be used to play the sound from many types of external device. (Refer to the page 11)

Connect the external device to the AUX IN connector of the unit.
Turn the power on by pressing (Power).
Select the AUX function by pressing FUNC. on the unit or FUNCTION on the remote control.
Turn the external device and start it playing.

Recording to USB
You can record a various sound source to USB.
(Except IPOD function)

Connect the USB device to the unit.
Select a function by pressing FUNC. on the unit or FUNCTION on the remote control.
One track/file recording – You can record to USB after playing a track/file you want.
All tracks/files recording – You can record to USB after stop.
Program list recording – After showing the programmed list, you can record it to USB.
(Refer to the page 13)
Start the recording by pressing USB REC on the unit or USB REC on the remote control.
To stop recording, press on the unit or ENTER on the remote control.

Pausing recording
During recording, press USB REC on the unit or USB REC on the remote control to pause recording. Press it again to restart recording.
(Only Radio/AUX)

To select recording bit rate and speed

Press USB REC on the unit or USB REC on the remote control for longer than 3 seconds.
Use on the unit or on the remote control to select the bit rate.
96 kbps -> 128 kbps -> 192 kbps -> 256 kbps
Press USB REC on the unit or USB REC on the remote control again to select the recording speed.
Press on the unit or on the remote control to select a desired recording speed : (AUDIO CD only)
X1 SPEED
- You can listen to music while recording it.
  X2 SPEED
- You can just record the music file.
Press USB REC on the unit or USB REC on the remote control to finish the setting.

NOTE

yYou can check the recording percentage rate for the USB record on the display window during the recording. (MP3/WMA CD Only)yyDuring recording MP3/WMA, there is no sound.
When you stop recording during playback, the file that has been recorded at that time will be stored. (Except MP3/WMA files)
Do not remove the USB device or turn off the unit during USB recording. If not, an incomplete file may be made and not deleted on PC.
If USB recording does not work, the message like “NO USB”, “ERROR”, “FULL” or “NO REC” is displayed on the display window.
Multi card reader device or External HDD can not be used for USB recording.
A file is recorded by about 512 Mbyte when you record for a long term.
You may not store more than 999 files.
It’ll be stored as follows.

$LG-CM4620-Mini-Hi-Fi-System-FIG- $31$$

*: TUNER, AUX and the like.

The making of unauthorized copies of copy-protected material, including computer programs, files, broadcasts and sound recordings, may be an infringement of copyrights and constitute a criminal offense. This equipment should not be used for such purposes. Be responsible Respect copyrights

Troubleshooting

Problem	Cause & Correction

No Power.

| The power cord is not plugged in. Plug in the power cord.

Check whether electricity failed.

Check the condition by operating other electronic devices.

No sound.

| Check whether you select right function.

Press FUNCTION and check the selected function.

If not, connect speaker cables correctly. Speaker cables connected correctly.

The unit does not start playback.

| An unplayable disc is inserted. Insert a playable disc.

No disc is inserted. Insert a disc.

The disc is dirty. Clean the disc. (Refer to the page 27)

The disc is inserted upside down.

Place the disc with the label or printed side facing upwards.

Radio stations cannot be tuned in properly.

| The antenna is positioned or connected poorly. Connect the antenna securely.

The signal strength of the radio station is too weak. Tune to the station manually.

No stations have been preset or preset stations have been cleared (when tuning by scanning preset channels).

Preset some radio stations, see page 16 for details.

The remote control does not work properly.

| The remote control is too far from the unit.

Operate the remote control within about 23 ft (7 m).

There is an obstacle in the path of the remote control and the unit. Remove the obstacle.

The batteries in the remote control are exhausted. Replace the batteries with new ones.

iPod/iPhone does not work.| Check whether the player is connected to the unit correctly. Connect it to the unit correctly.

Trademarks and Licenses
“Made for iPod,” and “Made for iPhone” mean that an electronic accessory has been designed to connect specifically to iPod or iPhone, respectively, and has been certified by the developer to meet Apple performance standards. Apple is not responsible for the operation of this device or its compliance with safety and regulatory standards. Please note that the use of this accessory with iPod or iPhone may affect wireless performance.

Specifications

General

Model| CM4620| CM4520| CM4420| CM4320
Power requirements| 200 – 240 V, 50 / 60 Hz
Power consumption| 70 W| 55 W| 55 W| 45 W
Dimensions (W x H x D)| 202 x 300 x 297 mm
Net Weight (Approx.)| 2.85 kg
Operating temperature| 5 °C to 35 °C (41 °F to 95 °F)
Operating humidity| 5 % to 90 %
Bus Power Supply (USB)| USB DC 5 V 0 500 mA
Inputs

AUX IN| 2.0 Vrms (1 kHz, 0 dB), 75 Ω, RCA jack (L, R) x 1
Tuner

FM Tuning Range| 87.5 to 108.0 MHz or 87.50 to 108.00 MHz
AM Tuning Range| 522 to 1 620 kHz, 520 to 1 710 kHz or 522 to 1 710 kHz
Amplifier

Model| CM4620| CM4520| CM4420| CM4320

Stereo mode

| 220 W + 220 W

(3 Ω at 1 KHz,

THD 10 %)

| 130 W + 130 W

(4 Ω at 1 KHz,

THD 10 %)

| 130 W + 130 W

(4 Ω at 1 KHz,

THD 10 %)

| 80 W + 80 W

(4 Ω at 1 KHz,

THD 10 %)

Surround mode

|

Front

| 220 W + 220 W

(3 Ω at 1 KHz,

THD 10 %)

| 130 W + 130 W

(4 Ω at 1 KHz,

THD 10 %)

| 130 W + 130 W

(4 Ω at 1 KHz,

THD 10 %)

| 80 W + 80 W

(4 Ω at 1 KHz,

THD 10 %)

Subwoofer

|

–

| 160 W

(3 Ω at 1 KHz,

THD 10 %)

|

–

|

–

CD

Frequency Response| 100 to 20 000 Hz
Signal-to-noise ratio| 75 dB
Dynamic range| 80 dB
Front speaker

Model| CMS4620F| CMS4520F| CMS4520F| CMS4320F
Type| 2 Way 2 Speaker
Impedance| 3 Ω| 4 Ω
Rated Input Power| 220 W| 130 W| 130 W| 80 W
Max. Input power| 440 W| 260 W| 260 W| 160 W
Net Dimensions (W x H x D)| 246 x 335 x 444

mm

| 232 x 249 x 344

mm

| 232 x 249 x 344

mm

| 215 x 237 x 304

mm

Net Weight| 5 kg| 3.2 Kg| 3.2 Kg| 2.47 Kg
Subwoofer speaker

Design and specifications are subject to change without notice.

Maintenance

Notes on Discs

Handling Discs
Never stick paper or tape on the disc.
Storing Discs
After playing, store the disc in its case. Do not expose the disc to direct sunlight or sources of heat and never leave it in a parked car exposed to direct sunlight.
Cleaning Discs
Do not use strong solvents such as alcohol, benzine, thinner, commercially available cleaners, or anti-static spray intended for old vinyl records.

Handling the Unit

When shipping the unit
Please save the original shipping carton and packing materials. If you need to ship the unit, for maximum protection, re-pack the unit as it was originally packed at the factory.
Keeping the exterior surfaces clean
Do not use volatile liquids such as insecticide spray near the unit.
Wiping with strong pressure may damage the surface.
Do not leave rubber or plastic products in contact with the unit for a long period of time.
Cleaning the unit
To clean the player, use a soft, dry cloth. If the surfaces are extremely dirty, use a soft cloth lightly moistened with a mild detergent solution. Do not use strong solvents such as alcohol, benzine, or thinner, as these might damage the surface of the unit.
Maintaining the Unit
The unit is a high-tech, precision device. If the optical pick-up lens and disc drive parts are dirty or worn, the picture quality could be diminished. For details, please contact your nearest authorized service center.