Philips lc4031 用户手册
10. TROUBLESHOOTING
PROBLEM
– POSSIBLE CAUSE
• SOLUTION
• SOLUTION
Image is not displayed
– Mains lead is not correctly connected.
• Correctly connect mains lead.
• Correctly connect mains lead.
– The filter holder is not installed correctly or is damaged.
• Install the filter holder correctly (see ‘Cleaning the dust filter’
• Install the filter holder correctly (see ‘Cleaning the dust filter’
under Additional Information’).
– Lamp holder cover is not closed correctly or the lamp holder
is damaged.
• Close the cover correctly (see ‘Lamp replacement’ under
Additional Information’).
– Signal cable not correctly connected.
• Connect signal cable correctly.
• Connect signal cable correctly.
– The projector is in OFF position.
• Press STANDBY/ON/OFF button to to switch on the
• Press STANDBY/ON/OFF button to to switch on the
projector ON.
Lamp ceased to operate or does not light up at all
(indicator lights up red)
(indicator lights up red)
– Lamp is still hot while the projector attempts to restart the lamp.
• Do not switch the set off; it will restart the lamp automatically
• Do not switch the set off; it will restart the lamp automatically
within a few seconds.
– Lamp circuit failure or worn-out lamp.
• Take the projector to your nearest Service Centre.
• Replace lamp (see ‘Maintenance’).
• Take the projector to your nearest Service Centre.
• Replace lamp (see ‘Maintenance’).
– Internal temperature of the projector is too high.
• Wait a few minutes and check to see if the air outlets are
• Wait a few minutes and check to see if the air outlets are
blocked.
Lamp indicator blinks orange
– Lamp life is almost expired (less then 100 hours to go).
• See lamp life counter on start up screen for details.
• See lamp life counter on start up screen for details.
Lamp indicator lights up orange
– Lamp life is expired.
Poor colour
– Wrong video system has been selected.
• Select the correct video system (see ‘Video system
selection’ under ‘Picture Control’).
• Adjust brightness, contrast, saturation or hue (see ‘Video
adjustments’ under ‘Picture Control’).
Image is blurred
– Image is not focused.
• Adjust focus ring.
• Adjust focus ring.
– Distance between projector and screen is not correct.
• Adjust the distance between the projector and the screen.
• Adjust the distance between the projector and the screen.
– Signal cable is not correctly connected.
• Connect signal cable correctly.
• Connect signal cable correctly.
Image does not match up with the projected screen
– Horizontal or vertical shift or horizontal size are not adjusted
correctly.
• Adjust horizontal or vertical shift or horizontal size (See ‘Data
adjustments’ under ‘Picture Control’).
Picture rolls
– Signal cable is not correctly connected.
• Connect signal cable correctly.
• Connect signal cable correctly.
No sound
– Audio cable is not correctly connected.
• Connect audio cable correctly.
• Connect audio cable correctly.
– Volume is not adjusted.
• Adjust volume.
• Adjust volume.
– Mute or A/V-mute is active.
• Cancel mute or A/V-mute.
• Cancel mute or A/V-mute.
The projector does not react to commands from the
remote control
remote control
– Remote control is not switched on.
• Switch on the remote control.
• Switch on the remote control.
– Distance is too great.
• Reduce distance.
• Reduce distance.
– Batteries are exhausted.
• Replace batteries (see ‘Inserting the batteries in the remote
control’).
– IR sensor is obstructed.
• Remove obstacle.
• Remove obstacle.
– Proper mouse software has not been installed on your
computer.
• Install proper mouse software.
21
English
If a fault occurs, first check the points listed below before taking the projector for repair.
If you are unable to remedy a problem by following these hints, consult your dealer or service organisation.
WARNING
Under no circumstances should you try to repair the projector yourself as this could invalidate the warranty.