Acer AL1521 AL1521 User Guide - Page 15

Screen image is not centered or *Adjust pixel frequency (CLOCK) and sized 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 Adjust the screen 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 right, the screen will show vertical stripes and the picture will not have the right width. FOCUS adjusts the phase of the pixel clock signal. With a wrong phase adjustment the picture has horizontal disturbances on light pictures. For FOCUS and CLOCK adjustment use "dot-pattern" or win 95/98 shut-down mode pattern. 41L1500-786-1A 英文 14