Dell D1901N User Manual - Page 16

Error, Message & Possible, Solution, Cable Not Connected, Input Not Support

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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 95/98/2000/ME/XP shut-down mode pattern. ERROR MESSAGE & POSSIBLE SOLUTION CABLE NOT CONNECTED : 1. Check that the signal-cable is properly connected, If the connector is loose, tighten the connector's screws. 2. Check the signal-cable's connection pins for damage. INPUT NOT SUPPORT : Your computer has been set to unsuitable display mode, set the computer to display mode given in the following table. 14

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14
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
95/98/2000/ME/XP shut-down mode pattern.
ERROR
MESSAGE & POSSIBLE
SOLUTION
CABLE NOT CONNECTED :
1.
Check that the signal-cable is properly connected, If the connector is
loose,
tighten the connector’s screws.
2.
Check the signal-cable’s connection pins for damage.
INPUT NOT SUPPORT :
Your computer has been set to unsuitable display mode, set the computer to
display mode given in the following table.