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Covers warnings regarding electric shock, fire hazards, moisture, and ventilation.
Advises on proper use, inspection, and protection of the power cord to prevent hazards.
Provides warnings and instructions for safe operation of the product's laser system.
Instructions on how to use and power the subwoofer for enhanced bass.
Details on connecting front, surround, and subwoofer speakers correctly.
Steps for attaching the AM/FM aerials and plugging in the power cord.
Guidance on speaker placement, cable matching, and child safety.
Recording audio from CD, AUX, USB, PORTABLE, or radio to cassette tape.
Steps for recording FM, AM, TAPE, AUX, or PORTABLE audio to a USB drive.
Resolving issues related to power and sound.
Solutions for CD, radio, and tape playback or tuning problems.
Addressing issues with the remote control not working correctly.
Covers warnings regarding electric shock, fire hazards, moisture, and ventilation.
Advises on proper use, inspection, and protection of the power cord to prevent hazards.
Provides warnings and instructions for safe operation of the product's laser system.
Instructions on how to use and power the subwoofer for enhanced bass.
Details on connecting front, surround, and subwoofer speakers correctly.
Steps for attaching the AM/FM aerials and plugging in the power cord.
Guidance on speaker placement, cable matching, and child safety.
Recording audio from CD, AUX, USB, PORTABLE, or radio to cassette tape.
Steps for recording FM, AM, TAPE, AUX, or PORTABLE audio to a USB drive.
Resolving issues related to power and sound.
Solutions for CD, radio, and tape playback or tuning problems.
Addressing issues with the remote control not working correctly.
This document describes the LG MCV903 (MCV903-A0U, MCS903S/F, MCS903W/AW) Hi-Fi system, outlining its functions, usage, and maintenance.
The device is a versatile Hi-Fi system capable of playing various audio sources, including CDs (Audio CD, MP3/WMA CD), cassette tapes, USB devices, and radio (FM/AM). It also features recording capabilities from multiple sources to USB or cassette tape.
The manual emphasizes several safety precautions. To reduce the risk of electric shock, the cover should not be removed, and servicing should be referred to qualified personnel. The lightning flash symbol warns of dangerous voltage, while the exclamation point indicates important operating and maintenance instructions. The device should not be exposed to rain or moisture and should not be installed in confined spaces like bookcases without proper ventilation. Ventilation openings must not be blocked. The apparatus should not be exposed to dripping or splashing water, and no liquid-filled objects should be placed on it.
Regarding the power cord, it is recommended to place the appliance on a dedicated circuit. Wall outlets should not be overloaded, and damaged cords or insulation are dangerous. The power cord should be protected from physical or mechanical abuse. To disconnect power, the mains cord plug should be pulled out, and the plug should be easily accessible during installation.
The product employs a Laser System. Users are advised to read the manual carefully for proper use and to contact an authorized service center for maintenance. Opening the enclosure to prevent direct exposure to the laser beam is cautioned, as visible laser radiation is present when open, and users should not stare into the beam.
The front panel features a DISPLAY WINDOW for showing information. The POWER on/off button controls the unit's power. The CLOCK button is used for setting and checking the time. The TIMER function allows users to set the CD, tape, USB play, and tuner reception to turn on or off at a desired time.
For audio adjustments, the USER EQ allows for custom sound settings. The XDS PLUS (eXtreme Dynamic Sound System) reinforces treble, bass, and surround sound effects. The MP3 OPT function optimizes compressible MP3 files for improved bass sound. The VOCAL FADE function reduces vocal levels in music.
The unit includes a DISC TRAY with an OPEN/CLOSE button for inserting or removing CDs. Navigation buttons include SKIP to another track and MULTI JOG for selecting radio stations or tracks. The NATURAL EQ allows users to choose from various sound impressions. The MIC VOL knob adjusts microphone volume. Playback controls include START PLAYBACK, STOP PLAYBACK OR RECORDING, and PAUSE.
For radio functions, there are buttons to LOOK FOR RADIO STATIONS AUTOMATICALLY and CHOOSE A 'PRESET NUMBER' for a radio station.
The PORTABLE IN jack allows connection of portable devices to play music through the system's speakers. The AUX IN sockets on the back enable connection of other audio or audio-visual devices. MIC 1/MIC 2 jacks are available for connecting microphones (not supplied) for singing along to music.
The remote control provides convenient access to all functions. The POWER button turns the unit on/off and can activate a power save mode when held for more than 3 seconds. The EQ, VSM, and MUTE buttons control sound settings and temporarily stop sound. The PRESET/FOLDER button is used to search for MP3/WMA folders or select preset radio stations. The FUNCTION button changes the active source (FM, AM, CD, TAPE). The VOLUME buttons adjust the sound level. The INPUT button changes input functions (USB, AUX, PORTABLE). The SLEEP button sets a delay time for the player to turn off automatically. The INFO button displays information about MP3/WMA files. The MODE button allows listening to tracks again and again. TUN.-/TUN.+ buttons select radio stations. The PROGRAM/MEMO button is used for storing radio stations. Playback controls include REC, PLAY/PAUSE, STOP, FAST FORWARD, and REWIND. D.SKIP and LINK buttons are also available for specific functions.
The setup process involves connecting speakers and aerials. The manual details connecting front speakers, surround speakers, and subwoofers (A and B) by matching cable colors to terminals. The FM aerial should be connected with its loose ends straight and horizontal for best reception, and the AM loop aerial should be fitted to its stand and connected to the player. Finally, the power plug should be inserted into a wall socket.
The subwoofer sound can be enhanced by pressing the POWER button on the subwoofer repeatedly to toggle SUB_WOOFER ON/OFF.
Important notes for setup include not placing speakers near a TV (within 30cm to avoid discoloration), matching speaker cord colors to terminals, and ensuring correct polarity (+ to +, - to -) to prevent distorted sound. The manual also warns against children putting hands or objects into the speaker duct, which is a hole for bass sound.
To play a CD:
Additional CD features:
To listen to the radio, ensure FM and AM aerials are connected.
Additional radio features:
To play cassette tapes:
Additional cassette features:
Record from CD, AUX, USB, PORTABLE, or radio to cassette. Use only normal tapes.
This function dubs a complete CD or programmed titles to a cassette automatically.
Connect a portable USB player to the system's USB port.
Additional USB features:
Record FM, AM, TAPE, AUX, or PORTABLE sources to USB. Connect USB to the player before recording.
Record one desired track or all music tracks from an Audio CD to USB.
MP3/WMA Disc compatibility:
Customize sound effects (BASS, MIDDLE, TREBLE).
Choose sound impressions by pressing NATURAL EQ on the player or EQ on the remote. The display cycles through NORMAL, NATURAL, ARABIC, AUTO-EQ (MP3/WMA only), POP, CLASSIC, ROCK, and JAZZ.
Select virtual sound by pressing VSM on the remote control.
Reduces vocal levels in music. Press VOCAL FADE repeatedly to cycle through FADE ON and FADE OFF.
Press SLEEP on the remote control one or more times to select a delay time (10 to 180 minutes) after which the player will turn off. The display cycles through various SLEEP settings (e.g., SLEEP 180, SLEEP 150, etc.) and dimmer ON/OFF. Note that pressing SLEEP toggles the WOOFER LED on/off.
Press DEMO in power off state to demonstrate the display window functions. Press again to cancel.
The manual provides a troubleshooting guide for common issues:
Designs and specifications are subject to change without notice.
General| Brand | LG |
|---|---|
| Model | MCS903AW |
| Category | Stereo System |
| Number of Discs | 1 |
| USB port | Yes |
| Bluetooth | Yes |
| USB Playback | Yes |
| Subwoofer | Yes |
| Playable File Types | MP3 |
| Disc Player | CD |
| Radio | FM |
| Speakers | Yes |
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