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Symptom
Possible cause
Connected device may
not be turned on
Line-of-sight obstructed
Connected device may
not support some or all
CEC features
My TV's remote
control does not
control the
CEC control may not be
device
set up correctly
Connected device may
not be a CEC device
Cables may not be
The device does
connected correctly
not show up in
the CEC device
list
CEC control may not be
set up correctly
Connected device may
not be a CEC device
Connected device may
My device does
not support some or all
not turn off
CEC features
when I turn off
my TV
CEC control may not be
set up correctly
Connected device may
not be a CEC device
Connected device may
My TV does not
not support some or all
turn on when I
CEC features
turn on my
device
CEC control may not be
set up correctly
Try this...
• Make sure that the device is turned on.
• Make sure that no objects (or pets) are obstructing the
line-of-sight from the remote control to the remote sensor on
the front of your TV and the device. See
control
on page 32.
• Depending on the device, all the buttons may not work.
• The device may not support this feature. See the
documentation that came with the device for more
information.
• Make sure that your TV has searched for CEC devices. See
Discovering connected CEC devices
• If you are trying to control the volume on an HDMI® CEC audio
receiver using your TV remote control, make sure that your TV
speakers are turned on. See
page 67.
• If you are trying to control the volume on an HDMI® CEC audio
receiver using your TV remote control, make sure that the
system audio control is turned on. See
control
on page 68.
• Make sure that the device is a CEC device. See the
documentation that came with the device.
• Make sure that the HDMI® cable is connected securely to your
TV and the device.
• Make sure that the device is connected to your TV with an
HDMI® cable.
• Make sure that your TV has searched for CEC devices. See
Discovering connected CEC devices
• Make sure that the device is a CEC device. See the
documentation that came with the device.
• The device may not support this feature. See the
documentation that came with the device for more
information.
• Make sure that your TV has searched for CEC devices. See
Discovering connected CEC devices
• Make sure that system standby is turned on. See
system standby
on page 68.
• Make sure that the device is a CEC device. See the
documentation that came with the device.
• The device may not support this feature. See the
documentation that came with the device for more
information.
• Make sure that your TV has searched for CEC devices. See
Discovering connected CEC devices
• Make sure that 1-touch play is turned on. See
play
on page 68.
LC-55LB481U 55" Full HD LED 1080p Sharp Roku TV
Aiming the remote
on page 68.
Turning off the speakers
Enabling system audio
on page 68.
on page 68.
on page 68.
Enabling 1-touch
on
Enabling
79
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