Hitachi Car Video System lcd monitor 用户手册

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 LCD

panel. However in some cases, there are minor defects in
some parts of the screen. 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 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 768 lines are
displayed; however, this is not a malfunction.

—

• The screen becomes dark and the images cannnot 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 multi picture mode, sub pictures are not displayed.

• Sub pictures image might not be able to be displayed,

depending on the combination.
(Reter to the table of “2 pictures mode” and “4 pictures
mode”)

• The screen display sizes are not switched.

• The screen display size is fixed at “Full” as receiving

1080i/60Hz, 1080i/50Hz, and 720p/60Hz.

—

• Images from AV6 (HDMI) are not displayed.

• Check the cable and output format of connecting device.

(Reter to “Connecting to an Audio Visual Device”, and
"Recommended Signal List".)

TROUBLESHOOTING (continued)

Symptoms That Seemingly Appear to be Failures (continued)