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Acer AL2023 Service Manual page 11

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f h
H-Total ( us )
31.78(900dots)
H-Sync ( us )
3.813(108dots)
H-B-P ( us )
1.907(54dots)
H-Active ( us )
25.42(720dots)
H-F-P ( us )
0.636(18dots)
f v
70Hz(70.087)
V-Total (ms )
14.27(449 lines)
V-Sync ( ms )
0.064(2 lines)
V-B-P (ms )
1.112(35 lines)
V-Active ( ms ) 12.71(400 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)
H-Sync ( us )
2.032 (64 dots)
H-B-P ( us )
3.810 (120 dots)
H-Active ( us ) 20.317 (640dots)
31.469kHz
31.778 (800 dots)
3.813 (96 dots)
1.907 (48 dots)
25.422 (640 dots)
0.636 (16 dots)
60Hz (59.940)
16.683 (525 lines )
0.064 (2 lines )
1.049 (33 lines ) 1.114 (39 lines )
15.253 (480 lines )
0.317 ( 10 lines)
-/+
Y
5
640 x 480
31.5
37.500kHz
28.44(1024 dots)
22.22(800 dots)
31.469kHz
28.571(864 dots) 26.413 (832 dots)
21.164 (640 dots) 20.317(640 dots)
66.7 HZ (66.667)
0.086 (3 lines )
- / -
Y
6
800 x 600
36
35.16kHz
2.00(72 dots)
3.56(128 dots)
2.200 ( 88 dots)
20.00 ( 800 dots) 16.162 (800 dots)
- 11 -
35.0kHz
2.116 (64 dots)
3.175 (96 dots)
2.116 (64 dots)
15.000 (525
13.735(520 lines)
lines )
13.714 (480
12.678(480 lines)
lines )
0.086 (3 lines )
+/+
Or -/-
Y
7
800 x 600
40
37.879kHz
26.40 (1056
21.333 (1056dots)
dots)
3.200 (128 dots)
1.616 (80 dots)
37.861kHz
1.270(40 dots)
4.064(128 dots)
0.762(24 dots)
72.809Hz
0.079(3 lines)
0.739(28 lines)
0.237(9 lines)
-/-
Y
8
800 x 600
49.5
46.875kHz
3.232 (160 dots)

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