Sony PCV-RS220 - Manual (Page 108)

About Handling a Monitor (Display)
 Do not change the display refresh rate to 85 Hz, as DVD playback and the DVgate software may not function
correctly. Sony recommends that you keep your display at the preset, optimal refresh rate (75 Hz).
 Do not place the display near a strong magnetic force.
 Do not block the ventilation slots on the display.
 Using the computer in low temperature conditions may produce a residual image on the screen. This is not a
malfunction. When the computer returns to normal temperature, the screen returns to normal.
 A residual image may appear on the screen if the same image is displayed for a lengthy period of time. The image
disappears after a period of time. You can use a screen saver to prevent residual images.
 The screen becomes warm during operation. This is normal and does not indicate a malfunction.
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