Fujitsu SIEMENS COMPUTERS L 3220T Handbuch Seite 29

Having this problem?
Picture is shaking
Picture disturbances (vertical lines)
Picture disturbances
(horizontal lines, picture noise)
Picture too light or too dark
Permanently unlit or lit pixels
The standard of production techniques today cannot guarantee an absolutely fault-free screen
display. A few isolated constant lit or unlit pixels may be present. The maximum permitted number of
pixels faults is stipulated in the stringent international standard ISO 13406-2 (Class II).
Example: A 17"/19" flat-screen monitor with a resolution of 1280 x 1024 has 1280 x 1024 = 1310720
pixels. Each pixel consists of three subpixels (red, green and blue), so there are almost 4 million
subpixels (or dots) in total. According to ISO 13406-2 (Class II), a maximum of 6 pixels and 7
subpixels may be defective, i. e. a total of 25 defective dots.
A 22" wide flat-screen monitor with a resolution of 1680 x 1050 has 1680 x 1050 = 1764000 pixels.
Each pixel consists of three subpixels (red, green and blue), so there are almost 5 million subpixels
(or dots) in total. In accordance with ISO 13406-2 (Class II), a maximum of 8 pixels and an additional
10 subpixels may be defective.
Edition 2
Check the following points:
Check whether the data cable for the monitor is
correctly attached to the monitor port on the
computer.
Carry out the auto-adjustment of the monitor (with
the AUTO button - if present - or via the OSD menu).
Carry out the auto-adjustment of the monitor (with
the AUTO button - if present - or via the OSD menu).
Carry out the auto-adjustment of the monitor (with
the AUTO button - if present - or via the OSD menu).
Carry out the auto-adjustment of the monitor (with
the AUTO button - if present - or via the OSD menu).
Correctly set the contrast and brightness with the
OSD menu if the auto-adjustment function does not
supply satisfactory results.
LCD monitor
English - 9