NEC MultiSync PA231W User Manual

Also see for MultiSync PA231W: Specification Specifications Specifications User manual User manual

English-31EnglishTroubleshootingNo picture• The signal cable should be completely connected to the display card/computer.• The display card should be completely seated in its slot.• The monitor does not support DisplayPort converter signal.• Front Power Switch and computer power switch should be in the ON position.• Check to make sure that a supported mode has been selected on the display card or system being used.(Please consult display card or system manual to change graphics mode.)• Check the monitor and your display card with respect to compatibility and recommended settings.• Check the signal cable connector for bent or pushed-in pins.• Check the signal input, “DVI-D”, “DisplayPort” or “D-Sub”.• If the front LED is blinking amber, check the status of the OFF MODE mode (see page 13).• When using a DVD player or any other type of high-defi nition device, please do not use interlaced signals. If the monitordetects an interlaced signal, an OSD warning will appear. If this OSD warning appears, please do the following: press theRESET and EXIT buttons simultaneously, to temporarily show the image coming from the high-defi nition device. Whilethe image is visible, change the signal of the device from interlaced to progressive (non-interlaced). Consult the User’sManual included with the device for detailed information on changing the signal from interlaced to progressive.Power Button does not respond• Unplug the power cord of the monitor from the AC outlet to turn off and reset the monitor.Image Persistence• Image persistence is when a residual or “ghost” image of a previous image remains visible on the screen. Unlike CRTmonitors, LCD monitors’ image persistence is not permanent, but constant images being displayed for a long periodof time should be avoided. To alleviate image persistence, turn off the monitor for as long as the previous image wasdisplayed. For example, if an image was on the monitor for one hour and a residual image remains, the monitor shouldbe turned off for one hour to erase the image.NOTE: As with all personal display devices, NEC DISPLAY SOLUTIONS recommends using a moving screen saver atregular intervals whenever the screen is idle or turning off the monitor when not in use.Picture is discolored• Make sure COLOR VISION EMU is OFF.• Make sure PICTURE MODE setting is same as ICC profi le on PC.• Set SELF COLOR CORRECTION.• When using an analog input, display the test pattern included in the enclosed CD-ROM and set AUTO ADJUST* 1.• First, use the front POWER button to turn off the monitor. Then use the POWER button turn the monitor on while holdingRESET (PIP) and SELECT (INPUT) buttons at the same time. This will reset all color parameters to the factory setting.This reset will take about 10 seconds and then the factory settings screen is displayed.Color irregularities on screen• Reduce BRIGHTNESS.• Set UNIFORMITY to “5”.Image is flickering• When using an analog input, display the test pattern included in the enclosed CD-ROM and set AUTO ADJUST*1.Message “OUT OF RANGE” is displayed (screen is either blank or shows rough images only)• Image is displayed only roughly (pixels are missing) and OSD warning “OUT OF RANGE” is displayed: Either signalclock or resolution is too high. Choose one of the supported modes.• OSD warning “OUT OF RANGE” is displayed on a blank screen: Signal frequency is out of range. Choose one of thesupported modes.Image is unstable, unfocused or swimming is apparent• Signal cable should be completely attached to the computer.• Use the OSD Image Adjust controls to focus and adjust display by increasing or decreasing the fi ne adjustment.When the display mode is changed, the OSD Image Adjust settings may need to be readjusted.• Check the monitor and your display card with respect to compatibility and recommended signal timings.• If your text is garbled, change the video mode to non-interlace and use 60Hz refresh rate.LED on monitor is not lit (no green, blue or amber color can be seen)• Power Switch should be in the ON position and power cord should be connected.Picture is not as bright• Make sure ECO MODE and AUTO BRIGHTNESS are turned off.• If the brightness fl uctuates make sure AUTO BRIGHTNESS is turned off.• In PICTURE MODE, set HI-BRIGHT. See page 15.• LCD brightness degradation occurs due to long-term usage or extreme cold conditions.• When the display cannot achieve the desired brightness, the numerical brightness value on the OSD will blink.*1 Only for PA231W/PA241W.