Samsung 4 Series User Manual page 27

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 box or 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 input 1 on the TV.
When changing channels, the picture freezes or is distorted or delayed.
• If connected with a cable box or satellite box, please try to reset the cable box or satellite
box. Reconnect the AC cord and wait until the cable box or satellite box reboots. It may take
up to 20 minutes.
• Set the output resolution of the cable box or satellite box to 1080i or 720p.
Sound Quality
• First of all, please perform the Sound Test to confirm that your TV audio is properly
operating. (go to MENUm - Support - Self Diagnosis - Sound Test)
• If the audio is ok, the sound problem may be 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 box or satellite box, DVD, Blu-ray etc)
connected to your TV.
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, make sure the audio cables are connected to the correct
audio input jacks on the TV.
• If you are using an external device, check the device's audio output option (ex. you may
need to change your cable box's or satellite box's audio option to HDMI when you have a
HDMI connected to your TV).
• If you are using a DVI to HDMI cable, a separate audio cable is required.
• Reboot the connected device by reconnecting the device's power cable.
The speakers are making an inappropriate noise.
• Check the cable connections. Make sure a video cable is not connected to an audio input.
• For aerial or cable connections, check the signal strength. Low signal level may cause
sound distortion.
No Picture, No Video
The TV will not turn on.
• Make sure the AC power cord is securely plugged in to the wall outlet and the TV.
• Make sure the wall outlet is working.
• Try pressing the POWER (
not the remote. If the TV turns on, refer to "The remote control does not work".
) button at the bottom of the TV to make sure the problem is
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