Samsung LT28C570EW/XE Go to Menu → Support → Self Diagnosis → Sound Test, Cause sound distortion

Other Information

Issues	Solutions and Explanations
There is a dotted line on the	If the Picture Size is set to Screen Fit, change it to 16:9.
edge of the screen.	Change the cable/satellite box resolution.
The picture is black and white.	If you are using an AV composite input, connect the video cable (yellow) to the Green
	jack of Component on the product
When changing channels, the	If the product is connected to a cable box, try to reset the box. (Disconnect and then
picture freezes or is distorted	reconnect the AC cord and wait until the cable box reboots. It may take up to 20
or delayed.	minutes.)
	Set the output resolution of the cable box to 1080i or 720p.
Sound	First, perform the Sound Test to determine if your product audio is operating properly.
	(Go to Menu → Support → Self Diagnosis → Sound Test).
	If the audio is OK, the sound problem may caused by the source or signal.
There is no sound or the	Please check the volume of the device (Cable/Sat Box, DVD, Blu-ray etc.) connected
sound is too low at maximum	to your product.
volume.
The picture is good but there	If you are using an external device, check the device’s audio output option. (Ex. You
is no sound.	may need to change your cable box’s audio option to HDMI if you have the box
	connected to your product using an HDMI cable.)
	If you are using a DVI to HDMI cable, a separate audio cable is required.
	If your product has a headphone jack, make sure there is nothing plugged into it.
	Reboot the connected device by disconnecting, and then reconnecting device’s
	power cable.
The speakers are making an	Check cable connections. Make sure a video cable is not connected to an audio
inappropriate noise.	input.
	For aerial or cable connections, check the signal information. A low signal level may
	cause sound distortion.
	Perform the Sound Test feature. (Menu → Support → Self Diagnosis → Sound Test)
RF (Cable / Aerial) Connection
The product is not receiving all	Make sure the coaxial cable is connected securely.
channels.	Please try Setup to add available channels to the channel list. Go to Menu → System
	→ Setup and wait for all available channels to be stored.
	Verify the aerial is positioned correctly.
The picture is distorted: macro	The compression of video contents may cause picture distortion, especially with fast
block error, small block, dots,	moving pictures such as sports and action movies.
pixelization.	A weak signal can cause picture distortion. This is not a product problem.
Others
Purple/green rolling horizontal	Remove the left and right audio connections from the Set-Top box. If the buzzing
bars and buzzing noise from	stops, this indicates that the Set-Top box has a grounding issue. Replace the
the product speakers with a	Component video cables with an HDMI connection.
Component cable connection.
The picture won’t display in	HD channels will have black bars on either side of the screen when displaying up
full screen.	scaled SD (4:3) contents.
	Black bars will appear on the top and bottom of the screen when you watch movies
	that have aspect ratios different from your product.
	Adjust the picture size options on your external device or the product to full screen.
A Mode Not Supported	Check the supported resolution of the product, and adjust the external device’s output
message appears.	resolution accordingly. Refer to the resolution settings of this manual.
There is a plastic smell from	This smell is normal and will dissipate over time.
the product.

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