Manual Hitachi 42PD580DTA (page 51 of 56) (English)

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TROUBLESHOOTING (continued)

Symptoms That Seemingly Appear to be Failures (continued)

Symptom Point to check See page

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

periphery (*).

*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.

(PC RGB input)

• Flickering in the form of horizontal lines oscillating up and

down. (PC RGB input 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.

• 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.

• The screen becomes dark and the images can not be seen

during VTR special playback (fast forward, rewind)

• This sometimes occurs when a component output VTR

such as the 480i is connected.

This is not a malfunction; therefore, please take note that

this may occur. When it does occur, change to composite

output, or S-video output.

• During PIP mode, sub pictures are not displayed. • Sub pictures image might not be able to be displayed,

depending on the combination.

(Refer to the table of PIP input table)

• The screen display sizes are not switched. • The screen display size is fixed at “Full” as receiving VGA

signal.

• Images from HDMI are not displayed. • Check the cable and output format of connecting device.

(Refer to “Connecting to an Audio Visual Device”.)

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Hitachi 42PD580DTA Manual

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