ViewSonic Air Filter Maintenance for Optimal Performance of Your Projector

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Air filter

WARNING ►Do not replace the air filter during use or immediately after use. Handling while the projector is in a high temperature could cause a burn and/or malfunction to the projector. Before operating, make sure that the power switch is off, that the power cord is not plugged in, and that the projector is cool adequately.

►Use only the air filter of the specified type. Do not use the projector with the air filter and filter cover removed.

►Avoid wetting the projector or inserting liquids in the projector. It could result in a fire, an electric shock, and and/or malfunction to the projector.

CAUTION ►Please replace the air filter when it is damaged or too soiled, and also when you replace the lamp.

When the indicators or a message prompts you to clean the air filter, clean the air filter as soon as possible. If the air filter becomes clogged by dust or the like, internal temperatures rise and the power may be automatically turned off for malfunction prevention.

1.Disconnect all the connectors and adapters that were connected to the projector’s ports. Then slowly turn the projector so that the lens-side is facing up. Please be careful for a projector not to fall. While the projector is placed lens-side up, hold the projector.

2.Remove the filter cover and the air filter. Hold the knobs while pulling out it. Usual filter cover

Filter cover’s knobs

Air filter’s knob

Filter cover for bottom-up use

Filter cover’s knobs

3.Apply a vacuum cleaner to the vent of the projector for the air filter. And then slowly turn the projector bottom up.

ViewSonic PJ400

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Contents PJ400 LCD Projector Compliance Information Important Safety Instructions Copyright Information Trademark acknowledgment PJ400 Model No.VS10459About this manual Contents About contents of package Projector featuresProjector Part namesMagnify Remote controlControls Fastening the lens cover PreparationsPutting batteries Using the remote control About the filter cover for bottom-up use Setting up At 43 screen ArrangementAdjusting the projectors elevator About Plug-and-Play capability Connecting your devicesExamples of connection with a computer Connecting power supply Turning on the power Power on/offTurning off the power Temporarily muting the sound Adjusting the volumeSelecting an input signal OperatingSelecting an aspect ratio Searching an input signalAdjusting the zoom magnifying power Adjusting the focusCorrecting the keystone distortions Using the automatic adjustment featureAt a video signal Adjusting the positionTemporarily blanking the screen Using the partial magnify featureFreezing the screen To choose the target menu Multifunctional settingUsing the menu function To display a menuTo choose the target item To return to the previous menu Setup MenuTo reset To operateMode AspectZoom KeystoneFilter Time ResetWhisper MirrorPicture menu To adjust #1 CUSTOM, #2 Custom or #3 CustomUsing a test pattern High Middle Custom LOW To adjust CustomLOAD1 LOAD2 LOAD3 LOAD4 ProgressiveTV Film Turn OFF MY MemoryOver Scan PhaseImage menu NormalExecute Auto AdjustAt a video signal SizeFormat Auto Ntsc PAL Secam Input menuSpace Auto RGB VideoInformation Frame LockTurn on Turn OFF Normal Hinvert Vinvert H&VINVERT Setup menuVolume Normal WhisperScreen menu Original Turn OFF Start UPSync is OUT of Range MessageNo Input is Detected Auto OFF Option menuSearch RGB S-VIDEO VideoLamp Time Reset  CancelHigh Normal ServiceFAN Speed Auto Adjust Factory Reset Ghost Enable DisableLamp MaintenanceCase of replacement by yourself Air filter ViewSonic PJ400 Inside of the projector Other careRelated messages TroubleshootingInternal portion temperature is rising Regarding the indicator lamps Has become heated It is time to clean the air filter, or there is no airCooling fan is not operating There is a possibility that the interior portionPhenomena that may easily be mistaken for machine defects Electrical power cord is not pluggedPower switch is not set to the on position Color Space setting is not suitable Signal cables are not correctly connectedBrightness is adjusted to an extremely Color settings are not correctly adjusted 25, 28Specifications Warranty and after-serviceSpecifications Unit mm Land/Region Web site = Telephone Mail Customer SupportLimited Warranty ViewSonic Projector