Samsung UN55F7500AF User Manual Ver.1.0 (English) - Page 160

Kensington Security Lock This function is only available on the LED 7450/7500 series. A Kensington Security Lock is a physical device that can be used to protect the TV against theft. Look for the Kensington slot on the back of the TV. The slot has a K icon next to it. Wrap the lock around an object that is too heavy to carry and then thread it through the TV's Kensington slot. The lock, however, has to be purchased separately. The method of using a Kensington Security Lock may differ for each TV model. Refer to the Kensington Security Lock manual for more information. Display Resolution Connect a computer to the TV and then configure the computer's resolution by referencing the table below. The optimal resolution is 1920 x 1080 @ 60Hz. Choosing an output signal not included in the table can result in a blank screen or just the power indicator being turned on. Refer to the user manual of the graphics card and configure the resolution as indicated below. IBM Resolution (Dots x Lines) Standard Frequency 720 x 400 70Hz Horizontal Frequency (KHz) 31.469 Vertical Frequency (Hz) 70.087 Clock Frequency (MHz) Polarity (Horizontal / Vertical) 28.322 -/+ MAC Resolution (Dots x Lines) Standard Frequency 640 x 480 832 x 624 1152 x 870 67Hz 75Hz 75Hz Horizontal Frequency (KHz) 35.000 49.726 68.681 Vertical Frequency (Hz) 66.667 74.551 75.062 Clock Frequency (MHz) Polarity (Horizontal / Vertical) 30.240 -/- 57.284 -/- 100.000 -/-