Philips BDL4221V/00, Service Manual

Page: 17 / 128

17
Trouble Shooting
420WN6 LCD TV
Go to cover page
No TV picture No picture when
TV input was
selected
*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
*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.
*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
No Video No signal indicator
is displayed.
*Check Video Input Selection
Composite: Yellow colored RCA jack
S-Video: Typically a round 4 pin jack
Component: Typically 3 RCA jacks of Green, Red and Blue.
*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
*Check DVD connection
Composite gives good picture
S-Video gives better picture
Component gives best picture
No sound See video but no
audio
*Check if the LCD Monitor TV volume is turn off of muted.
*Connect the audio cable securely.
*Audio cable is connected incorrectly.
*Verify that the audio source is selected correctly in the OSD.
Remote Control Problems
Remote control does
not work properly
No response from
the LCD Monitor
TV when remote
is pressed
*Point the remote control directly at the remote sensor on the
LCD Monitor TV.
* Replace both batteries with new ones.
* 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
small
Image is centered
on screen, but
does not fill entire
viewing area
Perform the LCD Monitor TV factory reset (via
Menu -> Factory Reset -> All Settings).
Cannot adjust the
LCD Monitor TV with
the buttons at the
side of the unit
OSD does not
appear on the
screen
Turn the LCD Monitor TV off and unplug the
power cord and then plug back and power on.