Yamaha PDM5520 User Manual download pdf (Page 43)

ENGLISH

TROUBLESHOOTING FOR PC (continued)

Symptoms That Appear to be Failures (continued)

See page

Point to checkSymptom

• The temperature of the display panel surface is high.

• There are points (*) on the screen that differ in color from the

periphery of the screen.

* Points that do not light, points with brightness different

from that of the periphery, points with color different from

that of the periphery, etc.

• Vertical stripes appear, depending on the screen contents.

• Coarse horizontal stripes appear in FULL display.

• Flickering in the form of horizontal lines oscillating up and

down.

(PC INPUT MODE only)

• The top of the monitor heats up.

• Text characters are displayed with varying thicknesses.

• Plasma display panel is lighting the phosphors in the display

panel 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.

• High-precision technology is used to manufacture the

plasma display panel, However in some cases, there are

minor defects in some parts of the screen. Please note that

this is not a malfunction.

• 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.

• Adjusting the Clock Phase will reduce the horizontal stripes.

(RGB input)

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

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

attenuation of the current image.

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

vertical resolution will drop.

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

may heat up. This is not a malfunction.

• The thicknesses of characters and lines may vary if images

with a vertical resolution greater than 768 lines are

displayed; however, this is not a malfunction.

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Yamaha PDM5520 User Manual Page 43

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