Samsung 4 Série Mode D'emploi page 55

Problem
Horizontal bars appear to flicker,
jitter or shimmer on the image.
Vertical bars appear to flicker,
jitter or shimmer on the image.
Screen is black and power
indicator light blinks steadily.
Image is not stable and may
appear to vibrate when you have
a computer connected to the PC
input.
Image is not centered on the
screen.
The picture appears distorted in the
corner of the screen.
The "Resets all settings to the default
values" message appears.
This TFT LCD panel uses a panel consisting of sub pixels (LN19A450C1D, LN19A451C1D: 3 888 000 / LN22A450C1D,
LN22A451C1D: 5 292 000) 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.
Possible Solution
Adjust the Coarse tuning and then adjust the Fine tuning.
Adjust the Coarse tuning and then adjust the Fine tuning.
On your computer check: Power, Signal Cable.
The TV is using its power management system.
Move the computer's mouse or press any key on the keyboard.
If the setting is not correct, use your computer utility program to change the display settings.
Your TV supports multiscan display functions within the following frequency domain:
Horizontal frequency (kHz)
Vertical frequency (Hz)
PC Maximum refresh rate
(at 60 Hz)
Adjust the horizontal and vertical position.
The screen position must be adjusted on the output source (i.e. STB) with a digital signal.
If "Just Scan" is selected with some external devices, the picture may appear distorted in the
corner of the screen. This symptom is caused by the external devices, not TV.
This appears when you press and hold the ExIT button for a while. The product
settings are reset to the factory defaults.
English - 
30~60
60~75
LN19A450C1D, LN19A451C1D: 1440 X 900
LN22A450C1D, LN22A451C1D: 1680 X1050