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Product Support

Receive help on your LG product

Check out the latest information related to this product.

NB4540
  • TV/Audio/Video
  • Home Audio
  • NB4540

NB4540

Warranty Information Labour 12 Months / Parts 12 Months More
If you need Repair Service, submit an online service request. Request a Repair

Manuals & Documents

For the most accurate technical information regarding features, specifications, installation and operation of your LG product, please refer to the Owner's Manual and other documents available for this product.

If you don’t have the viewer program, click the link to download it.
  • Owner’s Manual

    The Owner’s Manual offers pertinent product information.
  • QUICK SETUP GUIDE

    It is a guide that can help you set your product faster.

Help Library


    • Troubleshooting
    • Home Audio
    07/01/2016
    How do I initialize sound bar?
    • Troubleshooting
    • Home Audio
    07/01/2016
    Screen color is black and white
    • Troubleshooting
    • Home Audio
    07/01/2016
    If I play a DVD, there are two screen colors
    • Operation
    • Home Audio
    07/01/2016
    Previously recorded disc
    • Troubleshooting
    • Home Audio
    07/01/2016
    Subtitle doesn't appear when I play a video