Acer AL2423 W Service Manual page 11

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Timings
The product has 34 memory modes in total. 26 modes are preset and 8 modes
are user definable.
MODE NO.
RESOLUTION
Dot clock(MHz)
f h
H-Total ( us )
31.78(900dots)
H-Sync ( us )
3.813(108dots)
H-B-P ( us )
H-Active ( us )
25.42(720dots)
H-F-P ( us )
f v
70Hz(70.087)
V-Total (ms )
14.27(449 lines) 16.683 (525 lines ) 15.000 (525 lines ) 13.735(520 lines)
V-Sync ( ms )
V-B-P (ms )
1.112(35 lines)
V-Active ( ms )
12.71(400 lines) 15.253 (480 lines ) 13.714 (480 lines ) 12.678(480 lines)
V-F-P ( ms )
0.384(12 lines)
SYNC. H/V
POLARITY
SEP . SYNC
MODE NO.
RESOLUTION
Dot clock(MHz)
f h
H-Total ( us )
26.667(840 dots) 28.44(1024 dots) 26.40 (1056 dots) 21.333 (1056dots)
H-Sync ( us )
2.032 (64 dots)
H-B-P ( us )
3.810 (120 dots)
H-Active ( us )
20.317 (640 dots)
H-F-P ( us )
0.508 (16 dots)
1
720 x 400
640 x 480
28.321
31.469kHz
31.469kHz
31.778 (800 dots)
3.813 (96 dots)
1.907(54dots)
1.907 (48 dots)
25.422 (640 dots) 21.164 (640 dots)
0.636(18dots)
0.636 (16 dots)
60Hz (59.940)
0.064(2 lines)
0.064 (2 lines )
1.049 (33 lines ) 1.114 (39 lines )
0.317 ( 10 lines)
-/+
Y
5
640 x 480
800 x 600
31.5
37.500kHz
35.16kHz
2.00(72 dots)
3.56(128 dots)
22.22(800 dots)
0.67(24 dots)
2
640x480
25.175
30.24
35.0kHz
28.571(864 dots)
2.116 (64 dots)
3.175 (96 dots)
2.116 (64 dots)
66.7 HZ (66.667)
0.086 (3 lines )
0.086 (3 lines )
- / -
+/+
Or -/-
Y
6
800 x 600
36
40
37.879kHz
3.200 (128 dots)
2.200 ( 88 dots)
20.00 ( 800 dots)
1.000 (40 dots)
- 11 -
3
4
640 x 480
31.5
37.861kHz
26.413 (832 dots)
1.270(40 dots)
4.064(128 dots)
20.317(640 dots)
0.762(24 dots)
72.809Hz
0.079(3 lines)
0.739(28 lines)
0.237(9 lines)
-/-
Y
Y
7
8
800 x 600
49.5
46.875kHz
1.616 (80 dots)
3.232 (160 dots)
16.162 (800 dots)
0.323 (16 dots)

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