Neuro Logic Systems 1U 17" & 19 LCD and Sun Keyboard Manuale Utente
RFT2 Rack Kit Installation Guide
07/01/06 Rev 1.0
Page 11 of 13
Trouble
Shooting
Bad
Image
Quality
Image quality problems (blurry characters, distorted images, etc) are usually caused by one of the
following:
The graphics card is running at the wrong resolution for the LCD monitor:
The monitor optimally runs at a resolution of 1280x1024x60Hz. To display the monitor resolution,
press the Menu Button at the top of the LCD twice. The on-screen display will display the current
resolution and frequency. If this is not what was expected (variances of a fraction of a hertz in the
displayed refresh rate are not significant), adjust the settings of your graphics card to display
1280x1024 at 60Hz resolution.
press the Menu Button at the top of the LCD twice. The on-screen display will display the current
resolution and frequency. If this is not what was expected (variances of a fraction of a hertz in the
displayed refresh rate are not significant), adjust the settings of your graphics card to display
1280x1024 at 60Hz resolution.
The monitor has not been adjusted for the particular graphics card driving it:
Perform an "Auto Adjustment" after logging in (ensuring a full screen image is being displayed
prior to running the Auto Adjustment). In some cases it may be necessary to power cycle the
monitor prior to running the Auto Adjust function (e.g. when the resolution is altered during the
system boot sequence).
prior to running the Auto Adjustment). In some cases it may be necessary to power cycle the
monitor prior to running the Auto Adjust function (e.g. when the resolution is altered during the
system boot sequence).
Improperly matched timing:
Some computer systems communicate with the monitor during system startup and configure an
optimum resolution. Ensure that the monitor is powered on before the computer system to ensure
that this process can occur.
optimum resolution. Ensure that the monitor is powered on before the computer system to ensure
that this process can occur.
Refresh set rate is too high.
For LCD monitors it is recommended the refresh rate be set to 60 Hz. The monitor is capable of
running at higher refresh rates, but optimally runs at 60Hz. The LCD Monitor uses advanced
technology that has no flicker in normal operation, and it is never influenced by the refresh rate.
When the monitor is run at refresh rates higher than 60Hz there is processing overhead, which
can cause a number of performance issues, included degraded image quality and greater
tendency for interference. The first and foremost recommended vertical refresh rate for the LCD
Monitor is 60Hz (1280x1024@60Hz). Use other rates only if the connected system’s graphics
card cannot accommodate 1280x1024x60Hz.
running at higher refresh rates, but optimally runs at 60Hz. The LCD Monitor uses advanced
technology that has no flicker in normal operation, and it is never influenced by the refresh rate.
When the monitor is run at refresh rates higher than 60Hz there is processing overhead, which
can cause a number of performance issues, included degraded image quality and greater
tendency for interference. The first and foremost recommended vertical refresh rate for the LCD
Monitor is 60Hz (1280x1024@60Hz). Use other rates only if the connected system’s graphics
card cannot accommodate 1280x1024x60Hz.