LAC-M5520EK - Car radio LG - Free user manual and instructions

Product Type	Car Radio / CD Receiver
Model	LAC-M5520EK
Brand	LG
Dimensions (W x H x D)	Approx. 178 x 50 x 160 mm (standard 1DIN)
Weight	Approx. 1.5 kg
Power Supply	12V DC (negative ground)
Maximum Power Output	4 x 50W (max)
RMS Power Output	4 x 22W (RMS, 4Ω)
Audio Formats Supported	CD, CD-R/RW, MP3, WMA
Radio Tuner	FM/AM (stereo FM, RDS)
Inputs	Front AUX (3.5mm), USB port
Outputs	4-channel preamp outputs (RCA)
Display	LCD with multi-color illumination
Steering Wheel Control Compatible	Yes (requires adapter)
Detachable Face	Yes (for theft prevention)
Equalizer	Preset EQ modes (Pop, Rock, Classic, etc.)
Bluetooth Connectivity	Yes (built-in, hands-free calling and music streaming)
Remote Control	Included (wireless IR remote)
Cleaning Instructions	Use a soft dry cloth; avoid solvents. Clean faceplate with mild soap if needed.
Safety Notes	Use only specified voltage. Ensure proper ventilation. Do not expose to moisture.
Spare Parts / Repairability	Contact LG support or authorized service center for replacement parts.

Frequently Asked Questions - LAC-M5520EK LG

How do I reset the LG LAC-M5520EK car radio?

Press the Reset button using a pointed object (e.g., a pen) located on the front panel. This restores factory settings.

Can I connect my smartphone via Bluetooth?

Yes, the radio has built-in Bluetooth. Enable Bluetooth on your phone, search for 'LAC-M5520EK', and pair. Use PIN 0000 if required.

What is the maximum USB drive capacity supported?

The USB port supports drives up to 32 GB formatted as FAT32 or NTFS. Larger drives may not be recognized.

Why is there no sound from the speakers?

Check speaker connections, ensure the unit is not muted, and verify the fader/balance settings. Also confirm the radio is in the correct source mode.

How do I remove the detachable faceplate?

Press the Release button (usually on the left side) and pull the faceplate towards you. Store it in the provided case.

Can I use steering wheel controls with this radio?

Yes, but you need a separate steering wheel control adapter (e.g., from Metra or Axxess). The radio has a wired remote input.

What should I do if the CD does not play?

Try a different CD, clean the disc, or press Reset. If the problem persists, the laser lens may be dirty; use a lens cleaning disc.

How do I set the clock?

Press and hold the Clock button until the time flashes. Use the volume knob or arrow keys to adjust hours and minutes. Press Clock again to save.

What is the pin assignment for the ISO connector?

Refer to the user manual for the wiring diagram. Generally, yellow: constant 12V, red: switched 12V, black: ground, and color-coded wires for speakers.

How can I improve FM radio reception?

Ensure the antenna is properly connected and fully extended. Avoid using the radio near strong electrical interference sources. An external amplifier may help.

USER MANUAL LAC-M5520EK LG

Car CD/MP3/WMA Receiver

OWNER'S MANUAL

MODEL : LAC-M5520EK, LAC-M5521EK LAC-M5530EK, LAC-M5531EK

MPB CD-R/RW

Please read this instruction booklet carefully and completely before connecting, operating or adjusting this product.

Table of Contents

INTRODUCTION

Table of Contents 2

Safety Precautions 3

Before Use 4

Front Panel....5

PREPARATION

Connections....6-7

OPERATION

Basic Operation 8-9

Turning the unit on....8

Turning the unit off....8

Selecting a source 8

Adjusting the volume 8

SOUND Adjustment....9

RDS Operation....10-11

RDS Display Options 10

RDS AF/REG FUNCTION 10

LOCAL/DX selection in EON-TA mode....10

RDS MODE Adjustment....11

Radio Operation 12

Listening to radio stations 12

Auto Search Memory 12

Storing and recalling broadcast frequencies ..... 12

Operation with Audio CD, MP3/WMA Disc 13-14

Playing an Audio CD and MP3/WMA Disc....13-14

REFERENCE

Troubleshooting 15

Specifications

Disposal of your old appliance

1. When this crossed-out wheeled bin symbol is attached to a product it means the product is covered by the European Directive 2002/96/EC.

2. All electrical and electronic products should be disposed of separately from the municipal waste stream via designated collection facilities appointed by the government or the local authorities.

3. The correct disposal of your old appliance will help prevent potential negative consequences for the environment and human health.

4. For more detailed information about disposal of your old appliance, please contact your city office, waste disposal service or the shop where you purchased the product.

Safety Precautions

CAUTION

RISK OF ELECTRIC SHOCK DO NOT OPEN

Warning: To reduce the risk of electric shock, do not remove the cover or back of this product. There are no user-serviceable parts inside. Refer servicing to qualified service personnel.

Warning: To reduce the risk of fire or electric shock, do not expose this product to dripping or splashing water, rain, or moisture.

Warning: Due to high temperature outside of the unit, please use the unit only installed in a car.

CAUTION:

This unit employs a Laser System.

To ensure proper use of this product, please read this owner's manual carefully and retain for future reference.

Should the unit require maintenance, contact an authorized service location (see service procedure).

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 the laser beam, do not open the enclosure. Visible laser radiation when open. DO NOT STARE INTO BEAM.

Caution: Protect this product from moisture.

Caution: If the battery is disconnected or discharged, the preset memory will be erased and must be reprogrammed.

Before Use

To ensure proper use of this product, please read this owner's manual carefully and retain for future reference.

Symbols Used in this Manual

The lightning flash symbol alerts you to the presence of dangerous voltage within the product enclosure that may constitute a risk of electric shock.

Indicates hazards likely to cause harm to the unit itself or other material damage.

NOTE

Indicates special notes and operating features.

Notes on Discs

Handling Discs

Do not touch the playback side of the disc. Hold the disc by the edges so that fingerprints do not get on the surface. 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

Fingerprints and dust on the disc can cause poor picture quality and sound distortion. Before playing, clean the disc with a clean cloth. Wipe the disc from the center out.

Do not use strong solvents such as alcohol, benzine, thinner, commercially available cleaners, or anti-static spray intended for older vinyl records.

This unit cannot be operated with 8cm disc (use 12cm discs only).

Front Panel

1 CD disc slot

2 POWER/SOURCE (⏻) button

3 MUTE button

4 BAND button

5 AUTO STORE/PRESET SCAN (AS/PS) button

6 • VOLUME KNOB

• CONTROL UP/DOWN dial

7 • Preset Station buttons. (1-6)

- CD PLAY/PAUSE (1 ▶/II) button

• INTRO SCAN (2 SCAN) button

- REPEAT (3 RPT) button

• SHUFFLE (4 SHF) button

• MP3/WMA TRACK -/+10 (5 -10/ 6 +10) button

• ALTERNATIVE FREQUENCIES (AF) button

• TA button

• CD SKIP/SEARCH (◀/▶) button

- SEEK/TUNE (-/+) button

9 DISPLAY (DISP) button

10 EQUALIZER/XDSS (EQ/XDSS) button

11 SOUND OPT.MENU button

12 EJECT (▲) button

13 DISPLAY WINDOW

Connections

Connecting to the Car

Before connecting, make sure that the ignition switch is set to OFF, and remove the battery ⊖ terminal to avoid short circuits.

Connections

Connecting to the Car

A From the antenna

B To the wiring of vehicle leads Colors

1 GND (BLACK) : This lead is for connection to the Ground.

2 PHONE : This lead is for connection to the phone line.

3 ILL-/ILL+ : This lead is for connection to the Dimmer line

4 ACC(RED): This lead is for connection to the terminal from which the power is supplied when the ignition switch is set to ACC.

5 B+(YELLOW): This lead is for connection to the Battery (back-up) terminal from which the power is always supplied.

6 ANT : This lead is for connection to the power antenna.

7 AMP (REMOTE ON) : This lead is for connection to the amplifier remote on.

C Speaker Connections

Connecting to Optional Equipment

You can use VCR or other unit connected to the AUX IN connector.

1. Connect a VCR or auxiliary device, etc to the AUX IN connector.

2. Press POWER/SOURCE (☐) button to select the AUX IN.

3. Connect the AUDIO OUTPUT connector of this unit to the AUDIO INPUT connector of Auxiliary Equipment.

Basic Operation

Turning the unit on

Press POWER/SOURCE (⏻) or any other button on the front panel.

Turning the unit off

Press POWER/SOURCE (⏻) on the front panel for more than 1.2 seconds to turn the unit off.

Selecting a source

You can select a source you want to listen to. Press POWER/SOURCE ( ) to select a source. Press POWER/SOURCE ( ) repeatedly to switch between the following sources: Tuner→CD→AUX IN→Tuner...

NOTE

- When you turn the unit off, the current volume level is automatically memorized. Whenever you turn the unit back on, it will operate at the memorized volume level.

Adjusting the volume

Use VOLUME to adjust the sound level. Rotate the VOLUME KNOB on the front panel to increase or decrease the volume.

Basic Operation

SOUND Adjustment

Using the EQ (Equalizer)

The equalizer lets you adjust the equalization to match the acoustic characteristics of the car's interior as desired.

There are 5 stored equalizer curves which you can easily recall at any time.

Here is a list of the equalizer curves:

• EQ POP : Reproduces pop music acoustics.

• EQ CLASSIC : Reproduces orchestral music acoustics.

• EQ ROCK : Reproduces rock music acoustics.

• EQ JAZZ : Reproduces jazz music acoustics.

• EQ VOCAL: Reproduces vocal music acoustics.

1. Press EQ/XDSS on the front panel to select the equalizer.

2. Press EQ/XDSS repeatedly to choose between the following Equalizer settings.

POP → CLASSIC → ROCK → JAZZ → VOCAL

1. Press MUTE to cut the sound.

2. To cancel it press MUTE again.(or any other button on the front panel.)

SOUND OPT.MENU

1. Press the SOUND OPT.MENU button repeatedly to select the mode you want to adjust from volume, bass, treble, balance and fader. The mode indicator lights up in the following order.

→ VOL → BAS → TRB → BAL → FAD; hline

1. Turn left or right CONTROL UP/DOWN to adjust the sound quality.

	Turn right	Turn left
VOL	Increase the volume level.	Decrease the volume level.
BAS	Increase the bass level.	Decrease the bass level.
TRB	Increase the Treble level.	Decrease the Treble level.
BAL	Decrease the level of the left speaker(s).	Decrease the level of the right speaker(s).
FAD	Decrease the level of the front speaker(s).	Decrease the level of the rear speaker(s).

NOTE The unit cannot adjust the bass and treble in the EQ/XDSS on mode.

XDSS (Extreme Dynamic Sound System)

XDSS ON : Press and hold the EQ/XDSS button to reinforce treble, bass and surround effect.

XDSS OFF : To cancel it press and hold EQ/XDSS again.

RDS Operation

RDS Display Options

In normal RDS operation the display will indicate the station name. Pressing DISP on the front panel enables you to cycle through the various data types in the sequence:

(FREQUENCY→PTY→RT→PS)

• PTY (Program type recognition)
• RT (Radio text recognition)
• PS (Program Service name)
• PI (Program Identification)
• AF (Alternative Frequencies for the actual program)
• TP (Traffic Program Identification)
• TA (Traffic Announcement Identification)
• EON (Enhanced Other Networks)

RDS AF/REG FUNCTION

To switch on or off the AF function (Network-Tracking), shortly press the 'AF' button. To switch on or off the REG function (Regional Network Tracking), long press the 'AF' button more than 2 seconds).

LOCAL/DX selection in EON-TA mode

In the EON-TA mode, pressing the TA button for more than 2 seconds, causes only local and strong stations to be received. When the TA button is pressed for more than 2 seconds, it receives all stations, including distant and weak ones. It is recommended to set the TA button to the local position to receive local stations with good sound quality.

NOTES

• RDS is only available for FM reception.

RDS Operation

RDS MODE Adjustment

1. Press the SOUND OPT.MENU button for more than 1.2 seconds it is activated selecting mode.
2. After, pressing SOUND OPT.MENU button repeatedly for selecting.
3. Turn left or right CONTROL UP/DOWN to select the indicator.

TA SEEK mode

When the newly tuned station does not receive TP information for 5 sec, the receiver retunes to the next station which has the same PI as the last station's, but has the TP information.

TA ALARM mode

When a newly tuned station has no TP information for 5 sec, a double beep sound is output.

PI SOUND mode

If the sound of a station with different PI is heard intermittently, the receiver mutes the sound after 1 second.

PI MUTE mode

If the situation described above is repeated, the receiver instantly mutes the sound.

RETUNE L mode

The waiting time for starting TA search or PI search is programmable. Retune time is set to 90 seconds.

RETUNE S mode

The waiting time for starting TA search or PI search is selectable. Retune time is set to 30 seconds.

BEEP 2ND mode

The beep is only generated when a key is long pressed (1 sec)

BEEP ALL mode

The beep is generated when any key is pressed.

Radio Operation

Listening to radio stations

1. Press the POWER/SOURCE (⏻) button to turn the unit on.
2. When you select a source the unit is turned on.
3. Press the POWER/SOURCE (⏻) button to select the tuner.
4. Press the BAND button to select a band.
5. Press the BAND button until the desired band is displayed, FM1, FM2, FM3, MW(AM).
6. To perform seek tuning, press the ◀ -/+ ▶ with quick presses.
7. The tuner will scan the frequencies until a broadcast with strong enough reception is found.
8. You can cancel seek tuning by pressing the ◀ -/+ ▶ with quick presses.
9. To perform manual tuning, press and hold the ▶/-/+ ▶ on the remote control for 1 second. And then press the ▶/-/+ ▶ with quick presses.
10. The frequencies move up or down step by step.

NOTES

- When the selected frequency is being broadcast in stereo, the “((-))” indicator will light.

Auto Search Memory

This function lets you automatically store the six strongest broadcast frequencies.

1. Press the POWER/SOURCE (⏻) button to select the tuner.
2. Press the AS/PS button on the front panel for about 1 second.
3. Scanning starts from the currently displayed frequency to higher frequencies and stops when 6 stations have been preset or the receivable frequencies have been scanned once.

NOTES

• The presetting is not performed if there is no station to be tuned in.
• When automatic presetting is performed, the previous preset stations are automatically erased.
  • To stop the automatic presetting, press the BAND or the AS/PS button.

To scan the preset stations

Press the AS/PS button on the front panel.

To stop the scanning, press the AS/PS button.

To tune in the preset stations

Press BAND to select the desired band and press the desired number buttons (1-6) on the remote control.

The number of the preset station button is displayed and the preset station is received.

Storing and recalling broadcast frequencies

You can easily store up to six broadcast frequencies for later recall with the touch of a button.

1. Select the desired frequency

2. Press one of the preset station buttons (1 - 6) for more than 1 seconds. The number of the pressed preset station button is displayed.

3. Repeat steps 1 and 2 to preset other stations.

NOTES

- As F1, F2, F3 have the same frequency range, up to 18 station can be preset for FM.

- When a station is preset on the preset station button on which another station of the same band has already been preset, the previously preset station is automatically erased.

Operation with Audio CD, MP3/WMA Disc

Playing an Audio CD and MP3/WMA Disc

CD MP3 WMA

The unit can play MP3/WMA formatted recordings on CD-ROM, CD-R or CD-RW discs.

Before playing MP3/WMA recordings, read the notes on MP3/WMA Recordings on page 16 (backcover page).

Pause CD MP3 WMA

1. Press PLAY/PAUSE (▶/II) during playback.
2. To return to playback, press PLAY/PAUSE (▶/II) again.

Moving to another Track CD MP3 WMA

• Press the ◀ -/+ ▶ briefly during playback to go to the next track or to return to the beginning of the current track.
• Press ◀ - twice briefly to step back to the previous track. (If playing times is less then 3 seconds this function is not operated.)

Search CD

Press and hold the ◀ -/+ ▶ for about 1 second during playback and then release at the point you want.

Operation with Audio CD, MP3/WMA Disc

Repeat

1. Press RPT during playback. CD MP3 WMA
   The "RPT" appears in the display window.
   (All of the music on the disc is played repeatedly)
2. Press RPT again.
   The "RPT" disappears in the display window.

(The repeat mode is cancelled.)

Shuffle

1. Press SHF during playback. CD MP3 WMA

The "SHF" appears in the display window.

(All of the music on the disc is played randomly)

1. Press SHF again.

The "SHF" disappears in the display window.

(The random playback is cancelled.)

NOTE

- During random playback, if you press ◀ - button, you won't go back to the previous track

MP3/WMA TRACK -10/+10

Durning playback, press the -10 button to go back to the previous 10th track, and press +10 button to go forward to the next 10th

track.

Intro scan

1. Press SCAN. CD MP3 WMA

The "SCAN" appears in the display window.

(The first 10 seconds of all of the songs on the disc is played)

1. Press SCAN again.

The "SCAN" disappears in the display window.

(The intro scan is cancelled.)

ID3 TAG MP3 WMA

When playing a disc containing information, you can see the information (ID3 TAG, Title, Artist and Album) in the display window. If there is no information "NO TEXT" will be shown in the display window.

Press the DISP button twice during MP3/WMA file playback.

Troubleshooting

Symptom	Cause	Correction
Power doesn't turn on.The unit doesn't operate.	Leads and connectors are not properly connected.The fuse is blown.Noise and other factors are causing the built-in microprocessor to operate incorrectly.	Confirm once more that all connections are correct.Rectify the problem that caused the fuse to blow, and then replace it. Be very sure to install the correct fuse with the same rate.Turn the unit off and then on.
Playback is not possible.	The disc is dirty.The loaded disc is of a type this unit cannot play.	Clean disc.Check what type the disc is.
No sound is heard.The volume level will not rise.	Cables are not connected correctly.	Connect the cables correctly.
There's no sound.	The volume level is low.	Adjust the volume.
There's audio skipping.	This unit is not firmly secured.	Secure this unit firmly.

REFERENCE

Specifications

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

1. Sampling Frequency / 32 - 48kHz (MP3) 22.05 - 48kHz (WMA)
2. Bit rate / within 32 - 320kbps (include VBR) (MP3) 16 - 192kbps (WMA)
3. CD-R/CD-RW physical format should be "ISO 9660"
4. If you record MP3/WMA files using software which cannot create a FILE SYSTEM, for example "Direct-CD" etc., it is impossible to playback MP3/WMA files. We recommend that you use "Easy-CD Creator" which creates an ISO9660 file system.

Customers should also note that permission is required in order to download MP3/WMA files and music from the Internet. Our company has no right to grant such permission. Permission should always be sought from the copyright owner.

General
Output Power	50W x 4CH(Max.)
Power Source	DC 12 V
Speaker impedance	.4 Ω
Ground System	.Negative type
Dimensions (W x H x D)	188 x 100 x 173 mm(Without Front Panel)
Net Weight (approx.)	1.78 kg

FM tuner
Frequency Range	87.5-107.9MHz or 87.5-108 MHz or 65-74 MHz, 87.5-108 MHz
S/N Ratio	.55 dB
Distortion	1.0%
Usable sensitivity	12 dBμV

MW(AM) tuner
Frequency Range	520-1720kHz or 522-1620 kHz
S/N Ratio	45 dB
Distortion	1.0%
Usable sensitivity	32 dBμV

CD
Frequency Response	40 - 20000 Hz
S/N Ratio	70 dB
Distortion	0.15%

● Design and specifications are subject to change without notice.