Hitachi PW1 user manual Symptom Point to check

Page 29

TROUBLESHOOTING (continued)

Symptoms That Seemingly 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 radiation. 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 radiation. Depending on the screen

	contents, in rare cases this may cause vertical stripes to appear	-
	because of failure 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)	23

•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.	23

•Try turning the Vertical Filter On. For this case however, the vertical resolution will drop.

• The fan motor is noisy. (Fan application model only)	• Use the fan that controls the temperature in the main body to
	lower the temperature of this unit. If the ambient air temperature	-
	increases, the fan will start, the RPMs will increase and motor	-

	noise will grow louder. This is not a malfunction though.

• 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; however,	-
this is not a malfunction.

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Contents 42HDM70 English Power Source Important Safety InstructionsPrevention of Screen Burn Disposal of this product may require specific instructionsPublic Viewing of Copyrighted Material Read before operating equipmentFeatures Contents 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 Set the sound volume at a suitable levelFCC Federal Communications Commission Statement Warning Main 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 English Operating Instructions Turning Power On and OffIndicating lamp IndicatingInput Switching Operating Instructions Volume AdjustmentWhen a button is pressed, the volume adjustment Audio MuteInput Signal Screen Display Size SwitchingDisplay area selection diagram RGB input Operating InstructionsAutomatic Adjustment of Screen Position and the Clock Operating Instructions Using the Menu ScreenOn-screen display system Independent Operation of Multiple Monitors ID NoPicture Menu Audio Menu Timer Menu60Min Function MenuSetup Menu Language Menu Other FeaturesAutomatic Store Menu Display Registration condition Power Save Mode Other Features Signal Check When 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 Seemingly Appear to be Failures TroubleshootingSymptom Point to check Check the way the signal cable is connectedSymptom Point to check Example Troubleshooting Actions to Correct Abnormal DisplaysSignal Input Product SpecificationsRGB terminal D-sub 15-pin connector Pin Input signalRecommended Signal List Product Specifications Signal InputWith Digital RGB signal input RGB1 input Pin Input signalXGA Product Specifications Recommended Signal ListWith Analog RGB signal input RGB2 input Supplement An example of connecting video imaging devices Connecting to a Video Imaging DeviceWith DVI-STB and RGB component setup Optional Video Unit FunctionFull Display size selection diagramAV1 AV2 AV3 RGB2 RGB1 AV4 Position + Using a wide-screen monitorPictures Split Operating Instructions Displaying Multi PictureYNR YNR Operating Instructions Picture MenuCNR LTIItem is added to the Menu shown AV4 AV1AV2 AV3 RGB1 Operating Instructions Setup MenuAV1 AV2 AV3 AV4 Video input Pin Signal Input connector pin specificationsScart connector pin specifications With component input AV1, AV2 and RGB2-component input With R, G, B Video input AV2 and AV4 inputKHz MHz 525Remarque QR58563