Yamaha PDM-4210E User Manual

Page 26

ENGLISH

Symptom

Point to check

See page

• The temperature of the display panel surface is high.

• 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.

• There are points (*) on the screen that differ in colour 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.

• 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.

• 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.

(RGB input)

• Flickering in the form of horizontal lines oscillating up and

down.

(PC INPUT MODE only)

• 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.

• 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.

TROUBLESHOOTING (continued)

Symptoms That Appear to be Failures (continued)