Brand:
LG
Category: Home Theater System
Document Type: Manual
Language: EN
Manual for HT303SU
Uploaded: Nov. 21, 2025, 6:52 p.m.
Warranty Information
This product comes with a 12-month guarantee covering manufacturing defects and labor.
- Front Panel Operation: Controls include Power, Disc Tray, Display Window, USB Port, OPEN/CLOSE for disc tray, PLAY/PAUSE, VSM (Virtual Sound Matrix) for sound effects, TUNING for radio stations, and VOLUME.
- Remote Control Operation: Functions include POWER, MUTE, FUNCTION (for input source selection), SLEEP timer, RETURN, numeric buttons for direct selection, EQ for sound effects, VSM, SETUP menu, MENU for DVD discs, DISPLAY for information, TITLE for disc menus, SKIP for tracks/chapters, VOLUME adjustment, PLAY, PAUSE/STEP, STOP, PROG./MEMO. for programming, REC for USB recording, SUBTITLE selection, REPEAT modes, and TV control functions.
- Disc Playback: Supports Audio CDs, MP3/WMA/JPEG files, and DivX movies. Features include programmed playback, slide shows with music, file moving, and picture rotation.
- Radio Operation: Preset up to 50 FM stations, manual tuning, and RDS (Radio Data System) for displaying station information.
- Setup Menu: Allows adjustments for Language, Display (TV Aspect, Display Mode, Progressive Scan), Audio (Speaker Setup, DRC), Lock (Parental Control), and Others (DivX VOD Registration).
Troubleshooting and error codes
| Symptom | Cause | Correction |
|---|---|---|
| No power. | The power cord is disconnected. | Plug the power cord securely into the wall outlet. |
| The power is on, but the DVD/CD Receiver does not work. | No disc is inserted. | Insert a disc. (Check that the DVD or, audio CD indicator in the DVD display is lit.) |
| No picture. | The TV is not set to receive DVD signal output. | Select the appropriate video input mode on the TV so the picture from the DVD/CD Receiver appears on the TV screen. |
| The video cable is not connected securely. | Connect the video cable into the jacks securely. | |
| There is no sound or only a very low-level sound is heard. | The connected TV power is turned off. | Turn on the TV. |
| The equipment connected with the audio cable is not set to receive DVD signal output. | Select the correct input mode of the audio receiver so you can hear the sound from the DVD/CD Receiver. | |
| The audio cables are not connected securely. | Connect the audio cable into the jacks securely. | |
| The power of the equipment connected with the audio cable is turned off. | Turn on the equipment connected with the audio cable. | |
| The audio connecting cable is damaged. | Replace it with new one. | |
| The playback picture is poor. | The disc is dirty. | Clean the disc. |
| The DVD/CD Receiver does not start playback. | No disc is inserted. | Insert a disc. (Check that the DVD, or audio CD indicator in the DVD display is lit.) |
| An unplayable disc is inserted. | Insert a playable disc. (Check the disc type, colour system and Regional code.) | |
| The disc is placed upside down. | Place the disc with the playback side down. | |
| The disc is not placed within the guide. | Place the disc on the disc tray correctly inside the guide. | |
| The disc is dirty. | Clean the disc. | |
| A menu is on the TV screen. | Press the SETUP button to turn off the menu screen. | |
| The Rating level is set. | Cancel the Rating function or change the rating level. | |
| Loud hum or noise is heard. | The disc is dirty. | Clean the disc. |
| The speakers and components are connected poorly. | Connect the speakers and components securely. | |
| The DVD/CD Receiver is located too close to the TV. | Move your TV away from the audio components. | |
| Radio stations cannot be tuned in. | The antenna is positioned or connected poorly. | Connect the antenna securely. Adjust the antennas and connect an external antenna if necessary. |
| The signal strength of the stations is too weak (when tuning in with automatic tuning). | Tune in the station manually. | |
| No stations have been preset or preset stations have been cleared (when tuning by scanning preset stations). | Preset the stations (page 10). | |
| The remote control does not work properly. | The remote control is not pointed at the remote sensor of the DVD/CD Receiver. | Point the remote control at the remote sensor of the DVD/CD Receiver. |
| The remote control is too far from the DVD/CD Receiver. | Use the remote control within about 23 ft (7 m). | |
| There is an obstacle in the path of the remote control and the DVD/CD Receiver. | Remove the obstacle. | |
| The batteries in the remote control are flat. | Replace the batteries with new ones. | |
| The front panel display is too dim. | Nothing is displayed on the front panel display. | Press SLEEP(Dimmer) on the remote control. |