Lenovo C500 manual Appendix B. Troubleshooting, Problem Solution

Page 59

Appendix B. Troubleshooting

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.

Problem

Solution

 

 

No image appears on the screen.

v Make sure your computer and projector are turned on.

 

v If the Blank screen is shown, press the Blank button on the remote

 

control.

 

v Verify the settings on your notebook or desktop PC.

 

v Turn off all equipment and power up again in the correct order. See

 

“Starting and shutting down the projector” on page 2-1.

 

 

The image is blurred

v Adjust the Focus on the projector. See “Adjusting the image” on

 

page 2-4.

 

v Press the Auto button on the remote control or the projector.

 

v Ensure the projector-to-screen distance is within the range specified.

 

v Check that the lens is clean.

 

v Check the image resolution of the notebook or desktop computer.

 

For more information, see “Image resolution” on page 2-5.

 

 

The image is wider at the top or bottom

v Position the projector so it is as perpendicular to the screen as

(trapezoid effect).

possible.

 

 

v Use the Keystone button on the remote control or projector to

 

correct the problem. See “Adjusting the image” on page 2-4.

 

 

The image is reversed or upside down.

Check the Projection setting on the Setup menu of the On-screen

 

Display. See “Options menu” on page 5-7.

 

 

The image is streaked.

v Set the Frequency and Tracking settings on the Setup menu of the

 

On-screen Display to the default settings. See “Navigating the

 

On-screen Display” on page 5-1.

 

v To ensure the problem is not caused by a connected PC’s video card,

 

connect to another computer.

 

 

The image is flat with no contrast

Adjust the Contrast setting on the Quality menu of the On-screen

 

Display. See “Navigating the On-screen Display” on page 5-1.

 

 

The color of the projected image does not

v Adjust the Color Temp. and Gamma settings on the Quality menu of

match the source image

the On-screen Display. See “Quality menu” on page 5-2.

 

 

v Adjust the individual colors in the User Color menu of the

 

On-screen Display. See “User color” on page 5-6.

 

v Reduce the White Peaking setting in the Advance Feature menu of

 

the On-screen Display. See “Advance Feature menu” on page 5-5.

 

 

© Lenovo 2006. Portions © IBM Corp. 2005.

B-1

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Contents Lenovo C500 Projector User’s Guide Page Lenovo C500 Projector User’s Guide Page Contents Iv Lenovo C500 Projector User’s Guide Safety information Vi Lenovo C500 Projector User’s Guide Mercury lamp information General safety guidelinesService Power cords and power adaptersBatteries Extension cords and related devicesPlugs and outlets Heat and product ventilation CD and DVD drive safetyLenovo C500 Projector User’s Guide Registering your option Xii Lenovo C500 Projector User’s Guide Product description Standard accessories Packing checklistFront angle of projector Projector featuresOn-screen Display buttons and LEDs 18 17 16 13 12 11 Bottom view of projector Starting and shutting down the projector Setting up the projectorPositioning the projector Setting up the projector Adjusting the image Adjusting the projector level and heightAdjusting the volume Image resolution6Lenovo C500 Projector User’s Guide Connecting devices Connecting devices to the projectorConnecting to a USB device Using the remote control Using the projector featuresInserting the remote control batteries Operating range Projector and remote control buttonsReady Power Navigating the On-screen Display On-screen Display menu controlsQuality menu Description DefaultInput Sources Properties menuFollowing table shows Properties menu and default options Advance Feature menu User color Options menu Setup menu Description Default Network Setting Language menu Description Information menuDescription 14Lenovo C500 Projector User’s Guide Remote network operation Network setupDirect connection ad hoc Setup C500 Ethernet operation Remote network operation 4Lenovo C500 Projector User’s Guide Remote network operation Updating Ethernet firmware Remote network operation 8Lenovo C500 Projector User’s Guide Replacing the projector lamp Appendix A. MaintenanceCleaning the lens AE R Resetting the lamp Using the security slot Problem Solution Appendix B. TroubleshootingLED Projector LEDsThermal protector 4Lenovo C500 Projector User’s Guide Following are specifications for the Lenovo C500 projector Appendix C. Specifications2Lenovo C500 Projector User’s Guide Telephone technical support Appendix D. Service and SupportOnline technical support 2Lenovo C500 Projector User’s Guide Part 1 General Terms Appendix E. Lenovo Statement of Limited WarrantyYour Additional Responsibilities What Lenovo Will Do to Correct ProblemsExchange of a Machine or Part Jurisdiction Part 2 Country-unique TermsLimitation of Liability Governing LawBolivia Canada Malaysia Following Terms Apply to ALL Emea Countries Governing Law Following Terms Apply to ALL EU Countries Second paragraph does not apply Egypt Slovakia Items for Which Lenovo is Not LiableCustomer Replaceable Unit ″CRU″ Service Part 3 Warranty InformationWarranty Period Types of Warranty ServiceWorldwide telephone list Appendix E. Lenovo Statement of Limited Warranty E-15 16Lenovo C500 Projector User’s Guide Guarantee supplement for Mexico 18Lenovo C500 Projector User’s Guide Appendix F. Notices Trademarks Avis de conformité à la réglementation d’Industrie Canada Appendix G. Electronic emission noticesIndustry Canada Class B emission compliance statement Unión Europea Normativa EMC Avis de conformité à la directive de l’Union EuropéenneUnione Europea Directiva EMC Conformidad électromagnética 4Lenovo C500 Projector User’s Guide Page Part Number 40Y8187
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