120
INFORMATION
Problem
Solution
Digital broadcasting is not
available even though the
cable is connected.
y
Check with the cable operator providing your
subscription and/or signal. (Depending on your
subscription, digital broadcasting may not be
supported.)
The display is inactive or
unclear when connected to
an HDMI
source.
y
Check the HDMI cable specifications. If your
HDMI cable is not genuine, images may fade in
and out or not be displayed properly.
y
Ensure that all cables are securely connected.
When connections are not secure, images may
not be properly displayed.
Does not work with a USB
storage device.
y
Verify that the USB device and cable is version 2.0
or higher.
Sound
y
SMART
HOME
ⰶᲳ
ㄮᗺ
ⱞⳮ
Ẳⱞ⩛
/
ხ㢢☎⳿
?
→ Settings → SUPPORT → Sound Test
First run a Sound Test to verify that the sound signal output is normal.
If there is no problem with the test sound, check connected external devices and the
broadcast signal.
Problem
Solution
Screen display is on but
there is no sound.
y
Check other TV programs.
y
Check if the audio output settings for the projector
are configured correctly.
For an analogue broadcast,
stereo is not clear or sound
comes from one speaker
only.
y
In a poor reception area (areas with weak or
unstable signals) or if multi audio is not stable,
select
Mono
on
Multi Audio
.
y
Adjust the balance using the navigation button.
TV sound is not in
sync with the image or
the sound breaks up
occasionally.
y
If the issue affects a specific TV program only, it
may be caused by problems with the broadcast
signal for the individual station. Check with the TV
station or your cable operator.
The volume changes when
I change program.
y
Volume can vary from program to program.
y
Set
Auto Volume
to
On
.
Summary of Contents for PA77U
Page 126: ......
