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Other issue
There is no sound in HDMI mode.
Displayed picture colors may not look normal. Video or sound may not be available. This can occur if a
source device that only supports an older version of the HDMI standard is connected to the product.
If these issues occur, connect an audio cable along with the HDMI cable.
Some PC graphics cards may not automatically recognize HDMI signals that do not include sound. In
this case, manually select a sound input.
Sound input Screen mode
PC Auto PC settings
DVI PC Audio In(Stereo ports) PC settings
The IR sensor is not functioning.
Make sure the sensor light turns on when a button is pressed on the remote control.
•If the sensor light does not turn on, turn the power switch off and then on again on the back of
the product.
(The power LED lights up red when the screen is switched off.)
If the sensor light still does not turn on after the power switch is turned off and then on again, an
internal jack may be disconnected.
Contact your nearest service center to have the product serviced.
•If the sensor light that is on does not flash red when a button is pressed on the remote control,
the IR sensor may be defective.
Contact your nearest service center to have the product serviced.
•If there is no change on the screen when a button is pressed on the remote control although the
sensor light flashes red, the mainboard may be defective.
Contact your nearest service center to have the product serviced.
In power-saving mode, when the input source is DisplayPort,
PC display settings cannot be saved.
Go to System → General and set Max. Power Saving to Off. Alternatively, configure the PC display
output settings again. Ensure the set is turned on.
When booting the PC with the input source set to
DisplayPort, the BIOS and booting screens do not appear.
Boot the PC when the set is turned on or when the input source is not DisplayPort.