Kortek KT-2114DF, Руководство по обслуживанию

Страница: 8 / 38

- 8 -
2-3 TIMING CHART
VIDEO
SYNC
HORIZONTAL VERTICAL
A
B
C D
E
O
P
Q R
S
A : LINE TIME TOTAL B :HORIZONTAL SYNC WIDTH
C : BACK PORCH D : ACTIVE TIME
E : FRONT PORCH
O : FRAME TIME TOTAL P : VERTICAL SYNC WIDTH
Q : BACK PORCH R : ACTIVE TIME
S : FRONT PORCH
DESCRPTION
CGA EGA VGA SVGA
640 x 200 640 x 200 640 x 400 640*480 800*600
H
f KHz 15.750 15.750 24.827 31.469 37.88
A uS 63.5 63.5 40.28 31.778 26.40
B uS 8.671 8.672 3.04 3.813 3.20
C uS 7.272 7.272 3.8 1.907 2.20
D uS 40.836 40.836 30.399 25.422 20.00
E uS 6.72 6.72 3.04 0.636 1.00
POL. POS POS POS NEG POS
V
f Hz 50 60.115 55.609 59.940 60.317
O mS 20.0 16.63 17.98 16.683 16.58
P mS 0.444 0.444 0.322 0.064 0.11
Q mS 0.825 0.825 1.26 1.048 0.61
R mS 18.603 15.302 16.111 15.253 15.84
S mS 0.128 0.06 0.282 0.318 0.03
POL. POS POS POS NEG POS