Samsung LN40A630M1F user manual Digital signal Picture appears distorted, Corner of the screen

Problem	Possible Solution
Screen is black and power indicator	On your computer check: Power, Signal Cable.
light blinks steadily.	The TV is using its power management system.
	Move the computer's mouse or press any key on the keyboard.
Image is not stable and may appear	If the setting is not correct, use your computer utility program to change the
to vibrate when you have a computer	display settings.
connected to the PC input.	➣ Your TV supports multiscan display functions within the following
	frequency domain:
		Horizontal frequency (kHz)	30~60
		Vertical frequency (Hz)	60~75
		PC Maximum refresh rate (at 60 Hz)	1920 x 1080
Image is not centered on the screen.	Adjust the horizontal and vertical position.
	The screen position must be adjusted on the output source (i.e. STB) with a
	digital signal.
The picture appears distorted in the	If “Just Scan” is selected with some external devices, the picture may appear
corner of the screen.	distorted in the corner of the screen. This symptom is caused by the external
	devices, not TV.
The ‘Resets all settings to the default	This appears when you press and hold the EXIT button for a while. The product
values.’ message appears.	settings are reset to the factory defaults.

This TFT LCD panel uses a panel consisting of sub pixels (6 220 800) which require sophisticated technology to produce. However, there may be few bright or dark pixels on the screen. These pixels will have no impact on the performance of the product.

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