ViewSonic VPW4255 manual Troubleshooting, Symptoms That Appear to be Failures

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TROUBLESHOOTING

Symptoms That Appear to be Failures

Make the checks suggested below depending on the symptoms observed. If the symptoms remain, contact your dealer.

WARNING

Customer servicing can be hazardous.

Symptom

 

Point to check

See page

 

 

 

 

• No picture with the power-indicator lamp

 

• Check to ensure the power cable is connected.

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off.

 

• Press the power switch.

 

 

 

 

 

 

16

 

 

 

 

 

 

 

 

 

• The message “No Sync. Signal” or “Power

 

 

No sync signal is detected.

14

 

 

Save” is displayed.

 

! No Sync. Signal

• Check to ensure the signal cable is connected.

 

 

 

• Make sure that the switch of the computer, imaging equipment ,

 

• No picture with the power indicator lamp

 

 

etc., is turned on.

 

 

 

 

light orange.

 

• Make sure the computer is not in the power-save mode.

 

Check to see if the input selection matches the connection terminal.

• The message “Invalid Scan Freq.” is

 

An input signal is not being received normally.

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displayed.

! Invalid Scan Freq.

• Check to see if the input signal matches the monitor

 

 

 

specifications.

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• Check to ensure the signal cable is connected.

 

 

 

 

 

 

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• The power indicator lamp is normally lit but

 

 

 

 

 

• Check the contrast and brightness settings (adjust them for higher

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no picture .

 

 

 

 

 

contrast and brightness).

 

 

 

 

 

 

 

 

 

 

 

 

 

• Check to ensure the signal cable is connected.

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• The display image appears to be flowing

 

 

 

 

 

 

• Adjust the dot clock frequency and phase. (Adjust the dot clock

 

 

 

 

 

 

 

 

slantwise.

 

 

 

 

 

 

frequency first, then the dot clock phase)

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• Text displayed across the screen appears

 

 

 

 

 

 

(RGB input)

 

vertically streaked, with the characters in

 

 

 

 

 

 

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vertical columns blurred.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Text displayed across the screen appears

 

 

 

 

 

• Adjust the dot clock phase for the clearest viewing.

 

blurred.

 

 

 

 

 

(RGB input)

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• A fine pattern flickers when displayed on the

 

 

 

 

 

 

 

screen.

 

 

 

 

 

 

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• The remote control does not work.

 

 

 

 

 

• Check to see if the batteries are loaded in the remote control

 

 

 

 

 

 

 

 

correctly.

12

 

 

 

 

 

 

 

• Try loading new batteries in the remote control.

 

ViewSonic VPW4255 27

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Contents VPW4255 Contents For Your Records Important Safety Instructions Prevention of Screen Burn Features About the Symbols Safety InstructionsBe cautious of the power cord connection Safety InstructionsBe sure to keep safety ground connection Be careful in handling the battery of the remote controlRemove the power cord for complete separation Avoid a high temperature environmentInstallation environment How to view the monitorPrecaution during transportation Precautions for the cable connectionDo not physically impact the remote control Precautions for the installationFCC Federal Communications Commission Statement Warning Nous vous recommandons également de régler le contraste et Avoid using split screen modes for long periods of timeImage Retention Prevention Ejemplos de Retención de ImagenMain Unit Component NamesLoading Batteries Component Names Remote controlHandling the Remote Control Installation Installation InstructionsAnti-tumble measures Securing to a wall or pillarMonitor rear panel Installation InstructionsConnecting to a PC Installation Instructions Power Cord Connection Operating Instructions Turning Power On and OffIndicator lamp Input Switching Operating Instructions Volume AdjustmentAudio Mute Status guide will be displayedInput Signal Screen Display Size SwitchingDisplay area selection diagram RGB input Operating InstructionsIndependent Operation of Multiple Monitors ID No Automatic Adjustment of Screen Position and the ClockUsing the Menu Screen On-screen display system Picture Menu Off Timer Timer MenuOn Timer Audio Menu60Min Function MenuMovie Setup MenuLanguage Menu Other FeaturesAutomatic Store Menu Display Registration conditionPower Save Mode Other Features Signal CheckWhen the RGB1, RGB2 input is selected Status Display ActionMethods to Reduce the Occurrence of Image Retention Image Retention of Plasma DisplayAbout screen defects About residual imagesSymptoms That Appear to be Failures TroubleshootingTroubleshooting Symptoms That Appear to be Failures Troubleshooting Actions to Correct Abnormal Images Signal Input Product SpecificationsRGB terminal D-sub 15-pin connector Pin Input signalRecommended Signal List Product Specifications Signal InputWith Digital RGB signal input RGB1 input DVI terminal DVI-DWith Analog RGB signal input RGB2 input Product Specifications Recommended Signal ListCustomer Support Plasma Warranty How to get serviceLimitation of implied warranties Exclusion of damagesCanada SwitzerlandBritain GermanyCleaning and Maintenance Compliance Information for Canada ViewSonic→ Corporation