Acer 41L1500-786-1A - Manual (Page 15)

41L1500-786-1A 英文 14
Screen image is not centered or
sized properly.
*Adjust pixel frequency (CLOCK) and
FOCUS or press hot-key (AUTO).
Picture has color defects
(white does not look white) *Adjust RGB color or select color
temperature
Horizontal or vertical disturbances on
the screen *Use win 95/98 shut-down mode 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 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.