Samsung LT27B750NDX-ZA - Manual (Page 139)

Issues Solutions and Explanations
There is a dotted line on the
edge of the screen. If the Picture Size is set to Screen Fit , change it to 16:9 .
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
picture freezes or is distorted
or delayed. If the product is connected to a cable box, try to reset the box. (Disconnect and then
reconnect the AC cord and wait until the cable box reboots. It may take up to 20
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
sound is too low at maximum
volume. Please check the volume of the device (Cable/Sat Box, DVD, Blu-ray etc.) connected
to your product.
The picture is good but there
is no sound. Set the Speaker Select option to TV Speaker in the Sound menu.
If you are using an external device, check the device’s audio output option. (Ex. You
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
inappropriate noise. Check cable connections. Make sure a video cable is not connected to an audio
input.
For antenna 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 / Antenna) Connection
The TV is not receiving all
channels.
Make sure the coaxial cable is connected securely.
Run Auto Program to add available channels to the channel list. Go to Channel →
Auto Program then select Cable and make sure to select the correct Cable TV signal
type. There are 3 options, STD , HRC and IRC . Most cable systems use STD .
Verify the antenna is positioned correctly.
No caption on digital
channels. Check the Caption Setup menu. Try changing Caption Mode Service1 to CC1 .
Some channels may not have caption data.
The picture is distorted: macro
block error, small block, dots,
pixelization. The compression of video contents may cause picture distortion, especially with fast
moving pictures such as sports and action movies.
A weak signal can cause picture distortion. This is not a product problem.
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