ViewSonic VPW4255 manual Troubleshooting Symptoms That Appear to be Failures

Page 30

TROUBLESHOOTING (continued)

Symptoms That Appear to be Failures (continued)

Symptom

Point to check

See page

 

 

 

• The temperature of the display panel surface is high.

• The plasma display panel is lighting the phosphors by the

 

 

discharge of internal energy. In some cases, this may cause the

-

 

temperature of the panel surface to increase. Please note that this

 

 

 

is not a malfunction.

 

 

 

 

• There are locations on the screen that are different from the

• High-precision technology is used to manufacture the plasma

 

periphery (*).

display panel. However in some cases, there are minor defects in

 

*Points that do not light, points with brightness different

some parts of the screen. Please note that this is not a

-

from that of the periphery, points with color different from

malfunction.

 

that of the periphery, etc.

 

 

•Vertical stripes appear, depending on the screen contents. • The plasma display panel is lighting the phosphors by the discharge of internal energy. Depending on the screen

 

contents, in rare cases, this may cause vertical stripes to appear

-

 

because the phospors fail to light. Please note that this is not a

 

 

malfunction.

 

 

 

 

• Coarse horizontal stripes appear in FULL display.

• Adjusting the Clock Phase will reduce the horizontal stripes.

23

 

(RGB input)

 

 

 

• Flickering in the form of horizontal lines oscillating up and

• If the direct frequency from the computer is below 85Hz, try a

 

down.

higher frequency (upper limit 85Hz). There may be a slight

23

(PC INPUT MODE only)

attenuation of the current image.

 

• Try turning the Vertical Filter On. For this case however, the

 

 

vertical resolution will drop.

 

 

 

 

• The fan motor is noisy. (Only for models with fan.)

• The fan lowers the temperature of this unit. If the ambient air

 

 

temperature increases, the fan RPMs increase and motor

-

 

noise increases. This is not a malfunction.

 

 

 

 

 

• The top of the monitor heats up.

• When used for long periods of time, the top of the monitor may

-

 

heat up. This is not a malfunction.

 

 

 

• Text characters are displayed with varying thicknesses.

• The thicknesses of characters and lines may vary if images with a

 

 

vertical resolution greater than 512 lines are displayed.

-

 

This is not a malfunction.

 

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Contents VPW4255 Contents For Your Records Important Safety Instructions Prevention of Screen Burn Features Safety Instructions About the SymbolsBe sure to keep safety ground connection Safety InstructionsBe cautious of the power cord connection Be careful in handling the battery of the remote controlInstallation environment Avoid a high temperature environmentRemove the power cord for complete separation How to view the monitorDo not physically impact the remote control Precautions for the cable connectionPrecaution during transportation Precautions for the installationFCC Federal Communications Commission Statement Warning Image Retention Prevention Avoid using split screen modes for long periods of timeNous vous recommandons également de régler le contraste et Ejemplos de Retención de ImagenComponent Names Main UnitComponent Names Remote control Handling the Remote ControlLoading Batteries Anti-tumble measures Installation InstructionsInstallation Securing to a wall or pillarInstallation Instructions Connecting to a PCMonitor rear panel Installation Instructions Power Cord Connection Turning Power On and Off Indicator lampOperating Instructions Audio Mute Operating Instructions Volume AdjustmentInput Switching Status guide will be displayedDisplay area selection diagram RGB input Size SwitchingInput Signal Screen Display Operating InstructionsAutomatic Adjustment of Screen Position and the Clock Using the Menu Screen On-screen display systemIndependent Operation of Multiple Monitors ID No Picture Menu On Timer Timer MenuOff Timer Audio MenuFunction Menu 60MinSetup Menu MovieAutomatic Store Other FeaturesLanguage Menu Menu Display Registration conditionWhen the RGB1, RGB2 input is selected Other Features Signal CheckPower Save Mode Status Display ActionAbout screen defects Image Retention of Plasma DisplayMethods to Reduce the Occurrence of Image Retention About residual imagesTroubleshooting Symptoms That Appear to be FailuresTroubleshooting Symptoms That Appear to be Failures Troubleshooting Actions to Correct Abnormal Images RGB terminal D-sub 15-pin connector Product SpecificationsSignal Input Pin Input signalWith Digital RGB signal input RGB1 input Product Specifications Signal InputRecommended Signal List DVI terminal DVI-DProduct Specifications Recommended Signal List With Analog RGB signal input RGB2 inputCustomer Support Limitation of implied warranties How to get servicePlasma Warranty Exclusion of damagesBritain SwitzerlandCanada GermanyCleaning and Maintenance Compliance Information for Canada ViewSonic→ Corporation
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