Lenovo C400 Appendix A. Troubleshooting, Common problems and solutions, Tips for troubleshooting

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Appendix A. Troubleshooting

The guidelines below provide tips to deal with problems you may encounter while using the projector. If the problem remains unsolved, contact your dealer for assistance.

Common problems and solutions

Check the following before proceeding to the problem-specific solutions.

vUse a different electrical device in the electrical outlet to confirm that the outlet is working.

vEnsure that the projector is turned on.

vEnsure all connections are securely attached.

vEnsure the attached device is turned on.

vEnsure a connected PC is not in suspend mode.

vEnsure a connected notebook computer is configured for an external display. This is usually done by pressing an Fn-key combination on the notebook.

Tips for troubleshooting

In each problem-specific section, try the steps in the order suggested. This may help you to solve the problem faster.

Try to pinpoint the problem and thus avoid replacing non-defective parts. For example, if you replace batteries and the problem remains, put the original batteries back and go to the next step.

Keep a record of the steps you take when troubleshooting: The information may be useful when calling for technical support or for passing on to service personnel.

Troubleshooting information

The following table provides troubleshooting information for the projector. In some cases, more than one possible solution is provided. Try the solutions in the order they are presented. When the problem is solved, you can skip the additional solutions.

Table A-1. Troubleshooting

Problem	Solution

No image appears on the screen.	v Make sure your computer and projector are turned
	on.
	v Verify the settings on your notebook or desktop PC.
	v Turn off all equipment and power up again in the
	correct order.

© Lenovo 2005. Portions © IBM Corp. 2004.

A-1

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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 Installation Using the wireless featuresUsing the projector software Starting a wireless projecting sessionBinding 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 projector MaintenanceCleaning the lens Cleaning the case2C400 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 controlOperating range Projector and remote control buttonsOperation description OpenPrevious Full Screen ModeNext Auto Slide Show/Manual Slide ShowNavigating the OSD On-Screen Display menu controlsLanguage Quality menuColor Temperature Description Default BrightnessContrast SharpnessCancel Description Default GammaProperties menu Color SpaceOptions menu Description Default Vertical positionKeystone Aspect RatioSetup menu Video automatic gain control Description Default Video typeProjection FrequencyDescription Default Pip Size Information settings menuPip Position Pip InputProjector wireless configuration Disable WEP Enable WEPWireless Repair Refresh Session Key10C400 Wireless Projector User’s Guide Common problems and solutions Appendix A. TroubleshootingTips for troubleshooting Troubleshooting informationOSD 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’sWireless Setting→ Wireless Repair in the OSD Hardware→ Device Management is enabled. ThenIf the prompt No Wlan adapter Property→ Hardware→ Device ManagementAppendix 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 What Lenovo Will Do to Correct Problems How to Obtain Warranty ServiceExchange of a Machine or Part Your Additional ResponsibilitiesLimitation of Liability Part 2 Country-unique Terms Uruguay PeruVenezuela North AmericaCambodia and Laos CAMBODIA, INDONESIA, and LaosIndia Malaysia JapanNEW Zealand PEOPLE’S Republic of China PRCEUROPE, 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 Courier or Depot Service On-site ServiceCustomer Carry-In or Mail-In Service CRU and On-site 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