Troubleshooting - Philips Q Line 86BDL3550Q User Manual

10.2. Troubleshooting

Symptom
No picture is displayed
Interference displayed on the display or
audible noise is heard
Color is abnormal
Picture is distorted with abnormal
patterns
Display image doesn't fill up the full size
of the screen
Can hear sound, but no picture
Can see picture but no sound is heard
Some picture elements do not light
up
After-Images can still be seen on the
display after the display is powered off.
(Examples of still pictures include logos,
video games, computer images, and
images displayed in 4:3 normal mode)
Possible Cause
1. The power cord is disconnected.
2. The main power switch on the back
of the display is not switched on.
3. The selected input has no connection.
4. The display is in standby mode.
Caused by surrounding electrical
appliances or fluorescent lights.
The signal cable is not connected
properly.
1. The signal cable is not connected
properly.
2. The input signal is beyond the
capabilities of the display.
1. The zoom mode is not set correctly.
2. Scan Mode may be set incorrectly to
underscan.
3. If the image exceeds the screen size,
Scan Mode may need to be set to
Underscan.
Source signal cable is connected
improperly.
1. Source signal cable is connected
improperly.
2. Volume is turned all the way down.
3. {Mute} is turned on.
4. No external speaker connected.
Some pixels of the display are off.
A still picture is displayed for an over
extended period of time
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75BDL3550Q_86BDL3550Q
Remedy
1. Plug in the power cord.
2. Make sure the power switch is
switched on.
3. Connect a signal connection to the
display.
Move the display to another location to
see if the interference is reduced.
Make sure that the signal cable is
attached firmly to the back of the display.
1. Make sure that the signal cable is
attached firmly.
2. Check the video signal source to see if
it is beyond the range of the display.
Please verify its specifications with
this display's specification section.
Use the Zoom mode or Custom zoom
function in the Screen menu to fine tune
display geometry and time frequency
parameter.
Make sure that both video inputs and
sound inputs are correctly connected.
1. Make sure that both video inputs and
sound inputs are correctly connected.
2. Press [ ] or [ ] button to hear
sound.
3. Switch MUTE off by using the [
button.
4. Connect external speakers and adjust
the volume to a suitable level.
This display is manufactured using
an extremely high level of precision
technology: however, sometimes some
pixels of the display may not display.
This is not a malfunction.
Do not allow a still image to be displayed
for an extended period of time as this
can cause a permanent after-image to
remain on the display.
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