User manual

4 Troubleshooting
To keep the warranty valid, never try to repair the system yourself.
If you encounter problems when using the product, check the following
points before requesting service. If the problem remains unsolved,
register your product and get support at www.philips.com/welcome.
• Make sure that the headphone jack is connected correctly.
• Make sure that the batteries are fully charged and inserted correctly.
• Make sure the LED lights up.