Acer AL1951 Screen image is not centered or sized, Adjust pixel frequency CLOCK and, properly

Screen image is not centered or sized	*Adjust pixel frequency (CLOCK) and
properly.	FOCUS or press hot-key (AUTO)
Picture has color defects	*Adjust RGB color or select color
(white does not look white)	temperature
Horizontal or vertical disturbances on	*Use win 95/98 shut-down mode
the screen	Adjust CLOCK and FOCUS or
	perform hot- key (AUTO-key).

CLOCK (pixel frequency) controls the number of pixels scanned by one horizontal sweep. If the frequency is not correct, the screen shows vertical stripes and the picture has not correct width.

FOCUS adjusts the phase of the pixel clock signal. With a wrong phase adjustment the picture has horizontal disturbances in light picture.

For FOCUS and CLOCK adjustment use “dot-pattern” or win 95/98 shut-down mode pattern.

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