BenQ MX620ST user manual Troubleshooting

Page 55

Troubleshooting

The projector does not turn on.

Cause

Remedy

 

 

 

Plug the power cord into the AC power jack on

There is no power from the power cord.

the projector, and plug the power cord into the

power outlet. If the power outlet has a switch,

 

 

make sure that it is switched on.

 

 

Attempting to turn the projector on again

Wait until the cooling down process has

during the cooling process.

completed.

 

 

No picture

 

Cause

Remedy

The video source is not turned on or

Turn the video source on and check that the signal

connected correctly.

cable is connected correctly.

 

 

The projector is not correctly connected

Check the connection.

to the input signal device.

 

 

 

The input signal has not been correctly

Select the correct input signal with the SOURCE

selected.

key on the projector or remote control.

 

 

The lens cover is still closed.

Open the lens cover.

Blurred image

 

Cause

 

Remedy

 

 

 

The projection lens is not correctly

 

Adjust the focus of the lens using the focus ring.

focused.

 

 

 

 

 

 

The projector and the screen are not

 

Adjust the projection angle and direction as well

aligned properly.

 

as the height of the projector if necessary.

 

 

 

The lens cover is still closed.

 

Open the lens cover.

Remote control does not work

 

Cause

Remedy

The battery is out of power.

Replace the battery with new ones.

There is an obstacle between the remote

Remove the obstacle.

control and the projector.

 

 

 

You are too far away from the projector.

Stand within 8 meters (26 feet) of the projector.

The password is incorrect

 

Cause

Remedy

 

 

You do not remember the password.

Please see "Entering the password recall

procedure" on page 23 for details.

 

 

 

Troubleshooting 55

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Contents MS619ST/MX620ST/MW621ST Table of contents Safety Instructions Important safety instructionsSafety Instructions 3000 m Feet Ceiling mounting the projector Introduction Projector featuresShipping contents Front/upper side Rear/lower side Projector exterior viewControls and functions Remote control Replacing the remote control batteries Remote control effective rangeFront Ceiling Positioning your projectorChoosing a location Front TableLength Projection dimensionsObtaining a preferred projected image size Screen size Distance from screen mm DiagonalMW621ST Connection ConnectionBest Connecting video source devicesConnecting audio Terminal name Terminal appearanceStarting up the projector OperationFine-tuning the image size and clarity Adjusting the projected imageAdjusting the projection angle Auto-adjusting the imageCorrecting keystone Below is the overview of the OSD menu Using the menusHighlight Change Security Settings and press MODE/ENTER Using a security cable lockUtilizing the password function Setting a passwordEntering the password recall procedure If you forget the passwordChanging the password Disabling the password function Switching input signalChanging Color Space Magnifying and searching for detailsSelecting the aspect ratio MS619ST/ MW621ST About the aspect ratioGo to the Picture Picture Mode menu Using Wall ColorSelecting a picture mode Setting the User 1/User 2 modeAdjusting Brilliant Color Fine-tuning the image quality in user modesSelecting a Color Temperature 3D Color Management Setting a preferred color temperatureResetting current or all picture modes Setting the presentation timerSelection Description Top-Left Bottom-Left Top-Right Bottom-Right To cancel the timer, perform the following stepsRemote paging operations Freezing the imageOperating in a high altitude environment To activate the High Altitude ModeHiding the image Locking control keysTurning off the Power On/Off Ring Tone Adjusting the soundUsing the test pattern Adjusting the sound levelTo select Blackboard or Whiteboard Using the teaching templatesPresenting from a USB Reader Shutting down the projector Direct power offMenu system Menu operationMain menu Sub-menu Options Basic Advanced Description of each menu Teaching Template Description Apply 3D Settings3D Sync Invert Mode Picture menu Function Description Picture ModeTemperature ReferenceTimer Fine Tuning 3D ColorReset Picture Settings Quick AutoReceiver System Setup Basic menu Function DescriptionOperation RemoteLamp System Setup Advanced menu Function Description HighAltitude AudioCurrent Reset AllStandby NetworkCare of the projector MaintenanceGetting to know the lamp hour Lamp informationExtending lamp life Status Message Timing of replacing the lampReplacing the lamp Maintenance Resetting the lamp timer Thermal events IndicatorsLight Status & Description Power events Lamp eventsTroubleshooting Projector specifications SpecificationsCeiling mount installation DimensionsSupported timing for PC input Timing chartKHz Supported timing for Hdmi Hdcp inputTiming Supported timing for Component-YPbPrinputSupported timing for Video and S-Video inputs Disclaimer Warranty and Copyright informationLimited warranty Copyright
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