Do not clean the projector with flammable substances such as benzene, thinners or a wet cloth, as these may cause problems.
Do not touch the projector with a nail or any other sharp objects, as this may scratch the surface.
Contact your distributor or a Service Center if dust or other substances are inside the projector.
Lamp Replacement
The projector lamp is an expendable item. For best operating performance, replace the lamp according to the usage time. You can view the lamp usage time in the Information Display (INFO button).
Use the recommended lamp when replacing. Lamp specifications are defined in the user’s manual. Replace with the same model provided with the projector.
Check that the power cord is unplugged before replacing the lamp.
Even after the power cord has been disconnected, the lamp will be hot. Allow it to cool down for at least 1 hour before changing the lamp.
The lamp is located at the left rear of your projector.
Before you turn the projector over to change the lamp, cover the projector with a soft cloth on a flat surface.
Do not leave the old lamp near inflammables or in reach of children. There is a danger of burn or injury.
Remove dirts or foreign materials around or inside the lamp unit using a proper vacuum device. 
When handling the lamp, avoid touching any part of it except for the handles. If you handle the lamp incorrectly, it may affect the screen quality and shorten its lifetime.
SP-D400S specifications
The Samsung SP-D400S is a remarkable addition to Samsung's lineup of premium soundbars, designed to enhance audio experiences at home. This innovative device incorporates cutting-edge technology and features that elevate the quality of sound, making it an ideal companion for TV, movies, and music.One of the standout features of the SP-D400S is its Dolby Atmos technology, which provides an immersive audio experience by delivering three-dimensional sound. This technology allows users to feel as if they are part of the action, with sound emanating from all directions, including overhead. This is particularly significant when watching action movies or playing video games, as the audio becomes more engaging and realistic.
The SP-D400S also boasts Q-Symphony technology, which enables it to sync seamlessly with compatible Samsung TVs. This synchronization enhances the overall audio experience by allowing both the TV speakers and the soundbar to work in harmony, producing a fuller and richer sound. Users can enjoy a surround sound experience without the need for a complex setup.
Another key feature of the SP-D400S is its Adaptive Sound technology, which intelligently analyzes the audio content being played to optimize sound settings. This means that whether you're watching a dialogue-driven drama or an explosive action film, the soundbar adjusts to provide the best audio output possible, ensuring that every sound is clear and balanced.
For connectivity, the SP-D400S offers a variety of options, including Bluetooth and HDMI ARC support. This allows users to easily connect their devices, such as smartphones or tablets, to stream music or other audio content. The device also has built-in voice assistant integration, which allows for hands-free control, making it user-friendly and convenient.
In terms of design, the SP-D400S features a sleek and modern aesthetic that fits seamlessly into any home entertainment setup. Its compact size ensures that it does not overpower the space while still delivering powerful sound performance.
Overall, the Samsung SP-D400S soundbar is an impressive audio solution that combines advanced technologies and thoughtful design. With features like Dolby Atmos, Q-Symphony, and Adaptive Sound, it promises to elevate your home audio experience, making it a worthy investment for anyone looking to enhance their entertainment setup.