Lenovo C400 manual Maintenance, Cleaning the projector, Cleaning the lens, Cleaning the case

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Chapter 5. Maintenance

This chapter provides information on projector maintenance.

Cleaning the projector

Cleaning the projector to remove dust and grime will help ensure trouble-free operation.

vBe sure to turn off and unplug the projector at least 1 hour before cleaning. Failure to do so could result in a severe burn.

vUse only a dampened cloth when cleaning. Do not allow water to enter the ventilation openings on the projector.

vIf a little water gets into the projector interior while cleaning, leave it unplugged in a well-ventilated room for several hours before using.

vIf a lot of water gets into the projector interior when cleaning, have the projector serviced.

Cleaning the lens

To clean the lens, complete the following procedure:

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

Note: Avoid using an excessive amount of cleaner, and do not 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. If you do not intend to use the projector immediately, replace the lens cap.

Cleaning the case

Follow the steps below to clean the projector case:

1.Wipe off dust with a clean dampened cloth.

2.Moisten the cloth with warm water and mild detergent (such as dish detergent), and wipe the case.

3.Rinse all detergent from the cloth and wipe the case again.

Note: To prevent discoloration or fading of the case, do not use abrasive alcohol-based cleaners.

Replacing the projector lamp

The projector lamp should only be replaced with an Lenovo certified replacement part, which you can order from your business partner or go to www.lenovo.com/think.

To replace the projector lamp, complete the following procedure:

1.Turn off the projector, unplug the power cord, and allow the projector to cool for at least 1 hour.

2.Use a Phillips-head screwdriver to remove the screw from the lamp compartment cover as shown in 1.

3.Remove the lamp compartment cover as shown in 2.

© Lenovo 2005. Portions © IBM Corp. 2004.

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Contents C400 Wireless Projector User’s Guide Page C400 Wireless Projector User’s Guide Page On-Screen Display menu Appendix G. Electronic emissions Safety information Vi C400 Wireless Projector User’s Guide General safety guidelines ServicePower cords and power adapters Extension cords and related devices Plugs and outletsBatteries Heat and product ventilation CD and DVD drive safetyC400 Wireless Projector User’s Guide Registering your option Xii C400 Wireless Projector User’s Guide Product description Standard Accessories Packing checklistFront angle of projector Projector featuresKeypad on projector Back angle of projectorSide view of the projector Connectors on back of the projectorBottom view of the projector Starting the projector Setting up the projectorTurning off the projector Positioning the projector Zoom max/min Adjusting the image Adjusting the projector level and heightAdjusting the volume Starting a wireless projecting session Using the wireless featuresInstallation Using the projector softwareBinding and Unbinding a Projector Retrieving the property of a projector Status of the projector Wireless software configurationSelecting adapter Remote controller emulation USB image display Buttons of the remote emulation controllerEnding projection Wireless projector system tray iconExit Uninstallation10C400 Wireless Projector User’s Guide Connecting devices to the projector Connecting devicesRemote mouse control using USB Connecting to a computer monitor Cleaning the case MaintenanceCleaning the projector Cleaning the lens2C400 Wireless Projector User’s Guide Using the security slot Resetting the lamp timer4C400 Wireless Projector User’s Guide Before you begin Using the projector featuresFigure below provides an illustration of the remote Using the remote controlOpen Projector and remote control buttonsOperating range Operation descriptionAuto Slide Show/Manual Slide Show Full Screen ModePrevious NextQuality menu On-Screen Display menu controlsNavigating the OSD LanguageSharpness Description Default BrightnessColor Temperature ContrastColor Space Description Default GammaCancel Properties menuAspect Ratio Description Default Vertical positionOptions menu KeystoneSetup menu Frequency Description Default Video typeVideo automatic gain control ProjectionPip Input Information settings menuDescription Default Pip Size Pip PositionProjector wireless configuration Refresh Session Key Enable WEPDisable WEP Wireless Repair10C400 Wireless Projector User’s Guide Troubleshooting information Appendix A. TroubleshootingCommon problems and solutions Tips for troubleshootingOSD Power LED number of flashes Explanation Projector LEDsLamp-ready LED number of flashes Explanation 4C400 Wireless Projector User’s Guide Wireless Setting → Enable WEP/Disable WEP Appendix B. Frequently asked questions FAQ’sProperty→ Hardware→ Device Management Hardware→ Device Management is enabled. ThenWireless Setting→ Wireless Repair in the OSD If the prompt No Wlan adapterAppendix C. Specifications 2C400 Wireless Projector User’s Guide Appendix D. Service and Support Online technical supportTelephone technical support 2C400 Wireless Projector User’s Guide What this Warranty Covers What this Warranty Does not CoverPart 1 General Terms Your Additional Responsibilities How to Obtain Warranty ServiceWhat Lenovo Will Do to Correct Problems Exchange of a Machine or PartLimitation of Liability Part 2 Country-unique Terms North America PeruUruguay VenezuelaCambodia and Laos CAMBODIA, INDONESIA, and LaosIndia PEOPLE’S Republic of China PRC JapanMalaysia NEW ZealandEUROPE, Middle EAST, Africa Emea SingaporeGoverning Law Following Terms Apply to ALL EU Countries European Union EUConsumers Egypt FranceGermany Hungary IrelandItems for Which Lenovo is Not Liable United Kingdom SlovakiaPart 3 Warranty Information Warranty PeriodTypes of Warranty Service CRU and On-site Service On-site ServiceCourier or Depot Service Customer Carry-In or Mail-In ServiceCountry or Region Telephone Number Worldwide telephone list18C400 Wireless Projector User’s Guide Country or Region Telephone Number Guarantee supplement for Mexico Appendix F. Notices Trademarks Appendix G. Electronic emissions notices Industry Canada Class a emission compliance statementAvis de conformite a la reglementation d’Industrie Canada Union Européenne Directive Conformité électromagnétique Unione Europea Directiva EMC Conformidad électromagnética Union Europea Normativa EMCAdditional Compliances Notices Page Part Number 40Y7781