Philips LCD monitor with LED backlight 248X3LFHSB 248X3LFHSB/00 Manuale Utente

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8. Troubleshooting & FAQs
Horizontal flicker appears
 Adjust the image using the “Auto” function in 
 
OSD Main Controls. 
 Eliminate the vertical bars using the Phase/
 
Clock of Setup in OSD Main Controls. It is 
valid only in VGA mode.
Image appears blurred, indistinct or too dark
 Adjust the contrast and brightness on  
 
On-Screen Display.
An "after-image", "burn-in" or "ghost image" 
remains after the power has been turned off.
 Uninterrupted display of still or static images 
 
over an extended period may cause " burn 
in", also known as "after-imaging " or "ghost 
imaging", on your screen. "Burn-in", "after-
imaging", or "ghost imaging" is a well-known 
phenomenon in monitor panel technology. In 
most cases, the "burned in" or "after-imaging" 
or "ghost imaging" will disappear gradually over 
a period of time after the power has been 
switched off. 
 Always activate a moving screen saver 
 
program when you leave your monitor 
unattended. 
 Always activate a periodic screen refresh 
 
application if your monitor will display 
unchanging static content.
 
 
Failure to activate a screen saver, or a periodic 
screen refresh application may result in severe 
“burn-in” or “after-image” or “ghost image” 
symptoms will not disappear and cannot be 
repaired. The damage mentioned above is not 
covered under your warranty.
Image appears distorted. Text is fuzzy or blurred. 
 Set the PC’s display resolution to the same 
 
mode as monitor’s recommended screen 
native resolution. 
Green, red, blue, dark, and white dots appears on 
the screen
 The remaining dots are normal characteristic 
 
of the liquid crystal used in today’s technology, 
Please refer the pixel policy for more detail. 
The "power on" light is too strong and is 
disturbing 
 You can adjust “power on” light using the 
 
power LED Setup in OSD main Controls.
 Audio problem
No sound
 Check if audio cable is connected to PC and 
 
monitor correctly.
 Ensure audio is not muted. Press OSD “Menu”, 
 
select “Audio” then “Mute”. Check it on “Off ” 
position.
 Press “Volume” in OSD main control to adjust 
 
the volume.
For further assistance, refer to the Consumer 
Information Centers list and contact Philips 
customer service representative.