3Com 8913H, 8916, 8912H, 8755H user manual Cleaning and replacing the air filter, Type number MU05611

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Maintenance

Cleaning and replacing the air filter

The air filter unit of this projector consists of a filter cover, two kinds of filters, and a filter frame. The new double large filters system is expected to function longer. However, please check and clean it periodically to keep ventilation needed for normal operation of the projector.

When the indicators or a message prompts you to clean the air filter, comply with it as soon as possible. Replace the filters when they are damaged or too soiled. To prepare new filters, contact to your dealer and tell the following type number.

Type number : MU05611

When you replace the lamp, please replace the air filter. An air filter of specified type will come together with a replacement lamp for this projector.

1. Turn the projector off, and unplug the power cord. Allow the projector to sufficiently cool down.

2. Use a vacuum cleaner on and around the filter cover.

3. Pull the filter cover knobs while lifting it, to take the filter unit off.

4. Use a vacuum cleaner for the filter vent of the projector and both sides of the filter unit.

If the filters are damaged or too soiled, replace them according to the following procedure number 5 to 7. Otherwise, please jump to the procedure number 8.

5. Pull the filter frame’s knob up while holding the filter cover to remove the filter frame, then take the filters out.

6. Set new filters where former filters were. Put the larger meshed filter into a filter cover first. Then put the finer meshed filter on the larger meshed one.

7. Put the filter frame back where it was.

8. Put the filter unit back into the projector.

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Filter cover

Filter cover knobs

Filter unit

Filter frame

Filter (finer meshed)

Filter (larger meshed)

Filter cover

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Contents Trademark acknowledgment About this manualThank you for purchasing this projector Contents Contents of package Fastening the lens coverHOT Part namesProjector Control panel Rear panel &9Control port USB port Cb/Pb, Cr/Pr ports Video port Audio IN3 L,R ports 11 13 10Remote control On a horizontal surface Suspended from the ceiling Setting upArrangement Arrangement Connecting your devices MonitorVCR/DVD PlayerConnecting your devices About Plug-and-Play capabilityConnecting power supply Using the security bar and slotAC inlet Power cord Anti-theft chain or wire Security slot Security barPutting batteries Remote controlAbout the remote control signal Changing the frequency of remote control signal Using as a simple PC mouse & keyboardMouse right button Press Reset button Mouse left button Press Enter buttonTurning off the power Power on/offTurning on the power Adjusting the volume Selecting an input signalPress Mute button on the remote control OperatingSearching an input signal Selecting an input signal For a computer signal  For no signalFocus ring Adjusting the projectors elevatorAdjusting the zoom and focus Using the automatic adjustment feature Adjusting the position For a video signal and s-video signal  For a component video signalUsing the magnify feature Correcting the keystone distortionsFreezing the screen Temporarily blanking the screenFreeze button Blank buttonUsing the menu function ESC button Reset buttonEasy Menu Menu buttonAdvanced Menu Using the menu functionAdvanced Menu Picture Mode AspectAuto KeystoneEasy Menu Picture menu GammaPicture menu Color TempSAVE-1, SAVE-2, SAVE-3, SAVE-4 LOAD-1, LOAD-2, LOAD-3, LOAD-4MY Memory For a computer signal For no signalImage menu Over ScanPhase Auto AdjustImage menu SizeInput menu ProgressiveVideo NR Color SpaceFrame Lock Input menuVideo Format Resolution For some pictures, this function may not work wellSetup menu Monitor OUT Setup menuStandby Mode Volume Audio menuSpeaker AudioBlank Using the /// buttons adjusts the menu positionScreen menu MyScreen Screen menuStart UP Capturing error has occurred. Please try again MyScreen registration is finishedMyScreen Lock MessageSource Name TemplateAuto on Option menuAuto Search Lamp Time Option menuAuto OFF MY Source ServiceMY Button Ghost Filter MessageFactory Reset KEY LockRemote Freq InformationUsing Security Features Inputting the PasswordChanging the Password SecurityUsing the MyScreen Password Function If you have forgotten your PasswordTurning on the MyScreen Password Function Setting the PasswordUsing the PIN Lock Function Turning the Password offDescription Security Registering the PIN CodeTurning Off the PIN Lock Function If you have forgotten your PIN CodeTurning On the Transition Detector Function Using the Transition Detector FunctionSetting the Transition Detector Password Setting the Transition Detector off Displaying the MY Text Using the MY Text Password functionWriting the MY Text Description Turning on the MY Text Password Closed Caption menu DisplayMode ChannelMaintenance Replacing the lampType number 456-8755H Replacing the lamp Lamp coverLamp warning Replacing the lampCleaning and replacing the air filter Type number MU05611Cleaning and replacing the air filter Caring for the cabinet and remote control Other careInside of the projector Caring for the lensTroubleshooting Related messagesRegarding the indicator lamps Resetting all settings Shutting the projector downElectrical power cord is not plugged Signal cables are not correctly connectedSignal source does not correctly work Input changeover settings are mismatchedVolume is adjusted to an extremely low level AUDIO/SPEAKER setting is not correctMute function is working Lens cover is attachedColor settings are not correctly adjusted Color Space setting is not suitableNot properly adjusted Whisper function is workingSpecifications Specifications913H 916100 112 Unit mm Specifications270

8755H, 8916, 8913H, 8912H specifications

3Com has long been known for its innovative networking solutions, and the 3Com 8912H, 8913H, 8916, and 8755H are prime examples of the company's commitment to high performance and versatility in networking technology. Each of these switches is engineered to meet the demanding requirements of modern network environments, providing robust functionalities designed for enterprise use.

The 3Com 8912H is a high-performance switch that offers 12 ports, allowing for efficient connectivity in medium-sized networks. One of its standout features is its support for Quality of Service (QoS), which prioritizes data traffic to enhance voice and video applications, ensuring minimal latency and jitter. Additionally, it includes advanced Layer 2 switching capabilities, enabling the management of bandwidth and improving network efficiency. Its ability to handle packet filtering and VLAN support allows for the segmentation of network traffic, enhancing both security and performance.

The 3Com 8913H extends the capabilities of the 8912H with 24 ports, making it ideal for growing organizations that require scalable networking solutions. Built with high availability in mind, the 8913H includes redundancy features that minimize downtime. It also supports Power over Ethernet (PoE), enabling the delivery of power to connected devices like IP phones and wireless access points directly through the network cable. This feature not only simplifies the installation of these devices but also enhances network management.

The 3Com 8916 is a more robust model, providing 16 ports and advanced Layer 2 and Layer 3 features. Its intelligent networking capabilities, such as static routing and dynamic management features, make it a suitable choice for larger networks. The switch supports stacking capabilities, allowing multiple units to operate as a single logical unit. This capability enhances management simplicity and scalability while providing redundancy and load balancing for even greater reliability.

Lastly, the 8755H switch stands out due to its ability to deliver high bandwidth and performance for large data center environments. It features a modular design, enabling the deployment of various interface modules to support different network requirements. This flexibility, combined with extensive manageability options, allows the 8755H to adapt to evolving network needs. Its robust security features safeguard the network against unauthorized access and attacks, making it a core component in secure enterprise architectures.

In summary, the 3Com 8912H, 8913H, 8916, and 8755H switches embody a comprehensive suite of networking features designed for efficiency, scalability, and security. They showcase 3Com's commitment to providing high-quality, reliable networking solutions that meet the diverse needs of businesses in an ever-evolving digital landscape.
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