Philips Q-Line 65BDL3550Q 65" 4K IPS Digital Signage Display - Manual (Page 64)

65BDL3550Q
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10.2. Troubleshooting
Symptom Possible Cause Remedy
No picture is displayed 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.
1. Plug in the power cord.
2. Make sure the power switch is
switched on.
3. Connect a signal connection to the
display.
Interference displayed on the display or
audible noise is heard Caused by surrounding electrical
appliances or fluorescent lights. Move the display to another location to
see if the interference is reduced.
Color is abnormal The signal cable is not connected
properly. Make sure that the signal cable is
attached firmly to the back of the display.
Picture is distorted with abnormal
patterns 1. The signal cable is not connected
properly.
2. The input signal is beyond the
capabilities 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.
Display image doesn’t fill up the full size
of the screen 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.
Use the Zoom mode or Custom zoom
function in the Screen menu to fine tune
display geometry and time frequency
parameter.
Can hear sound, but no picture Source signal cable is connected
improperly. Make sure that both video inputs and
sound inputs are correctly connected.
Can see picture but no sound is heard 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.
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.
Some picture elements do not light
up Some pixels of the display are off. 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.
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) A still picture is displayed for an over
extended period of time 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.