Philips 300wn5db User Manual

							
FAQs (Frequently Asked Questions)
displays it. Since the refraction ratio of inlet light on liquid crystal\
 varies with the inlet angle 
of the light, the viewing angle of a TFT is much narrower than that of a\
 CDT. Usually, the 
viewing angle refers to the point where the contrast ratio is 10. Many w\
ays to widen the 
viewing angle are currently being developed and the most common approach\
 is to use a 
wide viewing angle film, which widens the viewing angle by varying the r\
efraction ratio. IPS 
(In Plane Switching) or MVA (Multi Vertical Aligned) is also used to\
 give a wider viewing 
angle. 
Q: Why is there no flicker on an LCD Monitor?
A: Technically speaking, LCDs do flicker, but the cause of the phenomenon \
is different from 
that of CRT monitor -- and it has no impact of the ease of viewing. Flic\
kering in an LCD 
monitor relates to usually undetectable luminance caused by the differen\
ce between 
positive and negative voltage. On the other hand, CRT flickering that ca\
n irritate the human 
eye occurs when the on/off action of the fluorescent object becomes visi\
ble. Since the 
reaction speed of liquid crystal in an LCD panel is much slower, this tr\
oublesome form of 
flickering is not present in an LCD display.
Q: Why is an LCD monitor virtually free of Electro Magnetic Interference?
A: Unlike a CRT, an LCD monitor does not have key parts that generate Elec\
tro Magnetic 
Interference, especially magnetic fields. Also, since an LCD display uti\
lizes relatively low 
power, its power supply is extremely quiet.
 
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Ergonomics, Ecology and Safety Standards
Q:
 What is the CE mark?
A: The CE (Conformité Européenne) mark is required to be displayed\
 on all regulated 
products offered for sale on the European market. This CE mark means t\
hat a product 
complies with the relevant European Directive. A European Directive is a\
 European Law 
that relates to health, safety, environment and consumer protection, muc\
h the same as the U.
S. National Electrical Code and UL Standards.
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FAQs (Frequently Asked Questions)
Q: Does the product conform to general safety standards?
A: Yes. Philips LCD monitors conform to the guidelines of MPR-II standards\
 for the control 
of radiation, electromagnetic waves, energy reduction, electrical safety\
 in the work 
environment and recyclability. The specification page provides detailed \
data on safety 
standards.
More information is provided in the Regulatory Information section.
 
 
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Troubleshooting
Troubleshooting
Safety and Troubleshooting • FAQs • Common Problems • TV and Audio Problems • Video 
Problems • Remote Control Problems • Product Specific Problems • OSD Warning Message 
• Self-Test Feature Check (STFC) • Regulatory Information • Other Related Information
This page deals with problems that can be corrected by the user. If the \
problem still persists after 
you have tried these solutions, contact your nearest Philips dealer.
Common Problems 
SymptomsHaving this 
problem?Check these items
No Video/ Power 
LED off No picture, the 
LCD Monitor TV is 
deadl     Check connection integrity at both ends of the 
video cable and/or power cord.
l     Electric outlet verification 
l     Ensure AC power at the rear of the monitor 
TV is switched on.
No Video/ Power 
LED on No picture or no 
brightness
l     Increase brightness and contrast controls. 
l     Perform the LCD Monitor TV self-test feature 
check. 
l     Check for bent or broken pins in video cable 
connector.
Poor Focus Picture is fuzzy, 
blurry or ghosting
l     Auto adjust image through Menu -> Image 
Setting -> Auto Adjust.
l     Adjust Phase and Clock controls via OSD. 
l     Eliminate video extension cables. 
l     Perform the LCD Monitor TV factory reset (via 
Menu -> Factory Reset -> All Settings).
l     Lower video resolution or increase font size.
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Troubleshooting
Shaky/Jittery VideoWavy picture or 
fine movementl     Auto adjust image through Menu -> Image 
Setting -> Auto Adjust
l     Adjust Phase and Clock controls via OSD 
l     Perform the LCD Monitor TV factory reset (via 
Menu -> Factory Reset -> All Settings) 
l     Check environmental factors 
l     Relocate and test in other room
Missing Pixels LCD screen has 
spots
l     Cycle power on-off 
l     These are pixels that are permanently off and 
is a natural defect that occurs in LCD 
technology
Stuck-on Pixels LCD screen has 
bright spots
l     Cycle power on-off 
l     These are pixels that are permanently on and 
is a natural defect that occurs in LCD 
technology
Brightness Problems Picture too dim or 
too bright
l     Perform the LCD Monitor TV factory reset (via 
Menu -> Factory Reset -> All Settings) 
l     Auto adjust image through Menu -> Image 
Setting -> Auto Adjust
l     Adjust brightness & contrast controls 
 Note: When operating in DVI mode, the 
contrast adjustment is not available.
Geometric Distortion Screen not 
centered correctly
l     Perform the LCD Monitor TV reset on 
Position Settings Only 
l     Auto adjust image through Menu -> Image 
Setting -> Auto Adjust
l     Adjust the centering controls 
l     Ensure the LCD Monitor TV is in proper video 
mode
 Note: When operating in DVI mode, the 
positioning adjustments are not 
available.
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Troubleshooting
Horizontal/Vertical 
LinesScreen has one or 
more linesl     Perform the LCD Monitor TV reset 
l     Auto adjust image through Menu -> Image 
Setting -> Auto Adjust
l     Adjust Phase and Clock controls via OSD 
l     Perform the LCD Monitor TV self-test feature 
check and determine if these lines are also in 
self-test mode 
l     Check for bent or broken pins in the video 
cable connector
Note: When operating in DVI mode, the 
Pixel Clock and Phase adjustments are 
not available.
Sync Problems Screen is 
scrambled or 
appears torn
l     Perform the LCD Monitor TV reset 
l     Push Auto Adjust button 
l     Adjust Phase and Clock controls via OSD 
l     Perform the LCD Monitor TV self-test feature 
check to determine if scrambled screen 
appears in self-test mode 
l     Check for bent or broken pins 
l     Boot up in the safe mode
LCD Scratched Screen has 
scratches or 
smudges
l     Turn the LCD Monitor TV off and clean the 
screen 
Safety Related 
Issues Visible signs of 
smoke or sparks
l     Do not perform any troubleshooting steps 
l     The LCD Monitor TV needs to be replaced
Intermittent Problems The LCD Monitor 
TV malfunctions 
on & off
l     Ensure the LCD Monitor TV is in proper video 
mode 
l     Ensure video cable connection between 
computer and the LCD monitor TV is secured 
l     Perform the LCD Monitor TV factory reset (via 
Menu -> Factory Reset -> All Settings) 
l     Perform the LCD Monitor TV self-test feature 
check to determine if the intermittent problem 
occurs in self-test mode
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Troubleshooting
TV and Audio Problems
Poor TV signal 
receptionAbnormal picture 
seen from the 
screen
l     The proximity of mountains or high buildings 
may be responsible for ghost pictures, 
echoing or shadows. In this case, try manually 
adjusting your pictures: see fine tuning or 
adjust the direction of the outside aerial. 
For Asia users in non-NTSC area: Does your 
antenna enable you to receive broadcasts in 
this frequency range (UHF or VHF band)? In 
the event of difficult reception (snowy 
pictures) switch the NR on the PICTURE 
menu to ON.
No TV picture No picture when 
TV input was 
selected
l     Have you connected the aerial socket 
properly? Have you chosen the right system? 
Poorly connected SCART cables or aerial 
sockets are often the cause of picture or 
sound problems (sometimes the connectors 
can become half disconnected if the LCD 
Monitor TV set is moved or turned). Check all 
connections.
No sound No sound output 
when a program 
with sound was 
playing
l     Ensure that the audio cables are firmly 
connected to both the audio input connectors 
on your the LCD Monitor TV and audio output 
connectors on your PC or Video player.
l     If on certain TV channels you receive a 
picture but no sound, this means that you do 
not have the correct TV system. Modify the 
SYSTEM setting.
Video Problems
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Troubleshooting
No VideoNo signal indicator 
is displayed.
l     Check Video Input Selection
m     Composite: Yellow colored RCA jack
m     S-Video: Typically a round 4 pin jack
m     Component: Typically 3 RCA jacks of 
Green, Red and Blue. 
l     Make sure you did not plug the video cable to 
video output port behind the LCD monitor TV.
Low Quality DVD 
playback Picture not crisp 
and some color 
distortion
l     Check DVD connection
m     Composite gives good picture
m     S-Video gives better picture
m     Component gives best picture
No sound See video but no 
audio
l     Check if the LCD Monitor TV volume is turn 
off of muted.
l     Connect the audio cable securely.
l     Audio cable is connected incorrectly.
l     Verify that the audio source is selected 
correctly in the OSD.
Remote Control Problems
Remote control does 
not work properlyNo response from 
the LCD Monitor 
TV when remote 
is pressedl     Point the remote control directly at the remote 
sensor on the LCD Monitor TV.
l     Replace both batteries with new ones.
l     Make sure the remote control is not disabled 
(for disable/enable the remote control, please 
refer to the section of Remote Control).
Product Specific Problems
Screen image is too 
smallImage is centered 
on screen, but 
does not fill entire 
viewing areal     Perform the LCD Monitor TV factory reset (via 
Menu -> Factory Reset -> All Settings).
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Troubleshooting
Cannot adjust the 
LCD Monitor TV with 
the buttons at the 
side of the unitOSD does not 
appear on the 
screenl     Turn the LCD Monitor TV off and unplug the 
power cord and then plug back and power on.
For further assistance, refer to the Consumer Information Centers list and contact your local 
Philips distributor. RETURN TO TOP OF THE PAGE
OSD Warning Messages
A warning message may appear on the screen indicating the LCD Monitor TV\
 current status.
When user sees this warning message, it means 
that the LCD Monitor TV is in adjustment process.
A warning message may appear on the screen 
indicating that the LCD Monitor TV is out of sync 
range. 
See Specifications for the Horizontal and Vertical 
frequency ranges addressable by this the LCD 
Monitor TV. Recommended mode is 1280x 768 
@ 60Hz.
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Troubleshooting
This message means that there is no video input 
signal.
The LCD Monitor TV is in a power saving mode 
(in PC mode). 
The main OSD menu is unlocked.
The main OSD menu is locked.
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Self-Test Feature Check (STFC)
Your the LCD Monitor TV when used as a computer display through DVI and/\
or VGA connection 
provides a self-test feature that allows you to check whether your the L\
CD Monitor TV is functioning 
properly. If your the LCD Monitor TV and computer are properly connected\
 but the LCD Monitor TV 
screen remains dark, run the LCD Monitor TV self-test by performing the \
following steps: 
1.  Turn off both your computer and the LCD Monitor TV. 
2.  Unplug the video cable from the back of the computer. To ensure proper S\
elf-Test operation, 
remove both Digital(white connector) and the Analog(blue connector) \
cables from the back of 
computer. 
3.  Turn on the LCD Monitor TV. 
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Troubleshooting
The floating Philips - self-test Feature Check dialog box should appea\
r on-screen (against a black 
background) if the LCD Monitor TV cannot sense a video signal and is wo\
rking correctly. While in 
self-test mode, the power LED remains green and the self-test pattern wi\
ll scroll through the screen 
continually. 
This box also appears during normal system operation if the video cable \
becomes disconnected or 
damaged. 
4.  Turn off your the LCD Monitor TV and reconnect the video cable; then tur\
n on both your 
computer and the LCD Monitor TV.  If your the LCD Monitor TV screen rema\
ins blank after 
you use the previous procedure, check your video controller and computer\
 system; your LCD 
Monitor TV is functioning properly. RETURN TO TOP OF THE PAGE
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