BenQ CP120C user manual Troubleshooting, Projector does not turn on, No picture, Image is unstable

Page 49

Troubleshooting

The projector does not turn on.

Cause

Remedy

 

 

 

Plug the power cord into the AC inlet on the

There is no power from the power

projector, and plug the power cord into the

power outlet. If the power outlet has a switch,

cable.

make sure that it is switched on. See "Start

 

 

up" on page 21 for details.

 

 

Attempting to turn the projector on

Wait until the cooling down process has

completed. See "Shutdown" on page 27 for

again during the cooling process.

details.

 

 

 

No picture.

Cause

Remedy

 

 

The video source is not turned on or

Turn the video source on and check that the

signal cable is connected correctly. See

connected correctly.

"Connection" on page 16 for details.

 

 

 

The projector is not correctly

Check the connection. See "Connection" on

connected to the input source device.

page 16 for details.

 

 

 

Select the correct input signal with the

The input signal has not been

SOURCE button on the projector or remote

correctly selected.

control. See "Switching input signal" on page

 

26 for details.

 

 

The lens cover is not open.

Slide open the lens cover.

 

 

Image is unstable.

Cause

Remedy

 

 

The connection cables are not

Correctly connect the cables to the

securely connected to the projector or

appropriate terminals. See "Connection" on

the signal source.

page 16 for details.

 

 

Image is blurred.

Cause

Remedy

 

 

The projection lens is not correctly

Adjust the focus of the lens using the focus

ring. See "Fine-tuning the image size and

focused.

clarity" on page 24 for details.

 

 

 

 

Adjust the projection angle and direction as

The projector and the screen are not

well as the height of the unit if necessary. See

aligned properly.

"Obtaining a preferred projected image size"

 

on page 12 for details.

 

 

The lens cover is not open.

Slide open the lens cover.

Troubleshooting 43

Image 49
Contents Welcome Disclaimer CopyrightTable of Contents Iv Table of Contents Fine-tuning the image size and clarityTable of Contents Memo Vi Table of Contents But could fail if power cuts or surges Important safety instructionsImportant safety instructions Safety instructions Following environments Do not place this unit on a blanket Do not block the ventilation holesBedding or any other soft surface Other itemSafety instructions Introduction Projector featuresIntroduction Shipping contents Front / Upper side Projector exterior viewRear side Lower sideExternal control panel Controls and functionsTurns the projector on or off Selects one of the application modes Adjusts the focus of the projected imageFreeze button Remote control descriptionInstalling or replacing the remote control battery Remote control effective rangeChoosing a location Positioning your projectorObtaining a preferred projected image size EquipmentSelect your screen size Positioning your projector Maximum Minimum Zoom Screen size chartScreen Center of lens Projection distance Connection Connecting a computerConnection Best video quality Connecting Video source devicesComponent Video to VGA D-Sub adaptor cable Device Connecting a Component Video source deviceVideo cable Device Connecting an S-Video source deviceConnecting a composite Video source device Using the projector Using the projectorStart up To set a password Utilizing the password functionIf you forget the password To enter the password recall procedure Adjusting the heightTo change the password Fine-tuning the image size and clarity Auto-adjusting the imageThat you need using the zoom ring Focus ring Correcting keystoneBrightest Presentation Default SRGB/Photo Gaming Video Selecting an application modeMovie default Cinema Photo Gaming Using the projector Automatic keystone correctionHiding the image Switching input signalRemote paging operations Freezing the imageShutdown Disconnect the power cord from the wall socketMenu system Menu operationUsing the menus Picture menu Keystone Selected Application ModeColor Temp Depends onPro-Picture menu Setting menu Advance menu Auto Off Off Turned off. Selecting Off disables this functionEconomic Periods of time 10hours without shutdownMode Equivalent ResolutionInformation Menu SourceCare of the projector MaintenanceMessage Status Calculation of lamp hourReplacing the lamp Resetting the lamp counter Temperature informationProjector needs to cool after the power is Turned off IndicatorsStand-by mode Powering upMaintenance Projector does not turn on TroubleshootingNo picture Image is unstableRemote control does not work Projector specifications SpecificationsTiming chart DimensionsHorizontal Vertical Pixel Resolution Frequency Mode KHz MHz Supported timing for PC inputSupported timing for Component-YPbPrInput Signal Format Horizontal Frequency Vertical Frequency KHzSupported timing for Video and S-Video inputs Limited warranty WarrantyWarranty FCC statement Regulation statementsEEC statement Ices Statement CanadaMemo Regulation statements