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Maintenance

Cleaning the lens

1 Apply a non-abrasive camera lens cleaner to a soft, dry cloth.

• Avoid using an excessive amount of cleaner, and don’t apply the cleaner directly to the lens. Abrasive cleaners, solvents or other harsh chemicals might scratch the lens.

2 Lightly wipe the cleaning cloth over the lens in a circular motion.

 

Lamp hours used

Replacing the projection lamp

 

The lamp hour’s timer in the Service Infomenu counts the

wait 60 minutes

number of hours the lamp has been in use. Twenty hours

 

before the lamp life expires a message appears on the

 

screen at startup indicating that you should change the

 

lamp. The LED on the top of the projector also blinks red

turn off and unplug the projector

twice to indicate that the lamp should be changed. Use only

 

a replacement lamp with the same type and rating as the

 

original lamp. Lamps can be purchased direct from Knoll or

 

the dealer that sold the projector.

 

1 Turn off the projector and unplug the power cord.

 

If ceiling mounted, disconnect all cables and

 

detach the projector from the ceiling mount.

 

2 Wait 60 minutes to allow the projector to

 

cool thoroughly.

 

3. Turn the projector upside down on a

 

soft cloth so that the lamp door is

 

facing you. Remove the base or ceiling

 

mount plate, if attached, by removing the three screws.

 

4.Loosen the two captive screws on the lamp door and lift it off.

 

5. Loosen the two captive screws that attach the lamp housing

 

to the projector.

 

6. Carefully remove the lamp housing. Dispose of the lamp in

 

an environmentally proper way.

 

WARNING:

To avoid burns, allow the projector to cool for at least 60 minutes before you replace the lamp. Be extremely careful when removing the lamp housing. In the unlikely event that the bulb ruptures, small glass fragments may be generated.

The lamp housing is designed to contain these fragments, but use caution when removing the lamp housing. Before replacing the lamp, clean the lamp compartment and dispose of cleaning materials. Make sure to wash your hands after lamp replacement. This product has a lamp, which contains a very small amount of mercury. Dispose of it as required by local, state or federal ordinances and regulations. For more information see www.eiae.org.

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Knoll Systems HDP404 user manual Replacing the projection lamp, Maintenance Cleaning the lens
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HDP404 specifications

Knoll Systems HDP404 is an advanced high-definition multimedia distribution system that brings unparalleled quality and convenience to AV installations in both commercial and residential settings. This innovative device is engineered to handle a range of audio and video signals, delivering seamless performance for various applications, including home theaters, conference rooms, and educational institutions.

One of the main features of the HDP404 is its ability to support 4K Ultra HD resolution, providing crystal-clear images and vibrant colors. This is complemented by its capacity to manage multiple input sources, making it suitable for setups with multiple devices such as gaming consoles, Blu-ray players, and streaming devices. The system is designed to provide smooth switching between these sources without any latency, ensuring a delightful user experience for viewers.

The HDP404 incorporates advanced scaling technology, which automatically adjusts the resolution of the output display to match the capabilities of the connected devices. This dynamic scaling feature minimizes compatibility issues and allows for optimal image quality across a variety of screens and resolutions. Additionally, this technology enhances the flexibility of the installation, enabling users to change connection setups without compromising on quality.

Another notable characteristic of the Knoll Systems HDP404 is its robust signal distribution capability. The device features an HDMI output that supports long-distance transmission using CAT6 cabling, allowing for greater distance between the source and the display without loss of quality. This makes it ideal for large venues where equipment might be spread out over a significant area.

The HDP404 is also equipped with user-friendly interfaces, simplifying the process of configuration and operation. An intuitive remote control and web interface allow users to adjust settings easily, modify source configurations, and manage connected devices from a distance. Furthermore, the unit supports both TCP/IP and RS-232 control, making it compatible with a wide range of automation systems for smart homes and commercial applications.

In summary, the Knoll Systems HDP404 stands out as a versatile and powerful multimedia distribution solution. With its support for 4K Ultra HD, advanced scaling technology, robust signal distribution, and user-friendly controls, it meets the demands of modern AV installations, delivering exceptional performance and quality in any environment.
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