Philips 3139 User Manual page 46

Troubleshooting (cont.)
Symptom
No digital channels
One or a few tiny
spots on the screen
that do not change
colour along with
the video picture
Intermittent or
flickering picture in
HD mode
No sound or
picture but front
panel red light is
on
PC modes do not
work
S-Video colour
becomes faint
Black bar on top
and bottom of
screen in PC mode
AC3 not available
TV aerial cannot
be powered by set
Changing from one
channel to another
channel takes a
long time
Cannot access
digital menu
44
Possible solutions
• Contact your dealer about the Digital Video Broadcasting
Terrestrial signal availability in your country.
• This symptom is not a problem. The liquid crystal panel is built
with very high precision technology giving you the fine picture
details. Occasionally, a few non-active pixels may appear on the
screen as a fixed point of red, blue, green or black.
Note: this does not affect the performance of the set.
• Noise is displayed when the connected equipment such as DVD
player or set-top box fails. Check the user manual of the digital
equipment you are connecting.
• Use a standard-compliant HDMI - DVI/HDMI - HDMI cable.
• Press the key on the remote control.
• Check whether the connections are correct.
• Check whether the source is correctly selected. Press the
button to enter the Source list and select the correct source.
• Check whether you have configured the computer to a
compatible display resolution.
• Check the graphic card setting of PC.
• Check whether the SVHS cable is properly connected.
• Press the P + key on the remote control to change channel and
then press the P - key to change back again.
• Change the PC refresh rate to 60 Hz.
• AC3 is not supported for this set. Press the
remote control to select an alternative audio.
• Some TV aerials need to be powered by the set. This set does
not support this feature.
• Pay TV channels are encoded by the cable provider and take a
longer time to decode. This is normal behaviour and no action is
required.
• Check whether the TV is in analogue mode. If it is, press the
key to switch to digital mode.
key on the