Acer T230H Service Manual page 11

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 )
H-Sync ( us )
H-B-P ( us )
H-Active ( us )
H-F-P ( us )
f v
V-Total (ms )
V-Sync ( ms )
V-B-P (ms )
V-Active ( ms )
V-F-P ( ms )
SYNC. H/V
POLARITY
SEP . SYNC
Remark
1
720 x 400
28.321
31.469kHz
31.78(900dots) 31.778 (800 dots)
3.813(108dots)
1.907(54dots)
25.42(720dots) 25.422 (640 dots)
0.636(18dots)
70Hz(70.087)
14.27(449 lines) 16.683 (525 lines )
0.064(2 lines)
1.112(35 lines) 1.049 (33 lines )
12.71(400 lines) 15.253 (480 lines )
0.384(12 lines)
-/+
Y
Established timing Established timing
2
640 x 480
25.175
31.469kHz
28.571(864 dots)
3.813 (96 dots) 2.116 (64 dots)
1.907 (48 dots) 3.175 (96 dots)
21.164 (640 dots)
0.636 (16 dots) 2.116 (64 dots)
60Hz (59.940) 66.7 HZ (66.667)
15.000 (525 lines )
0.064 (2 lines ) 0.086 (3 lines )
1.114 (39 lines )
13.714 (480 lines )
0.317 ( 10 lines)
- / -
Y
Established timing
3
640x480
30.24
35.0kHz
26.413 (832 dots)
1.270(40 dots)
4.064(128 dots)
20.317(640 dots)
0.762(24 dots)
13.735(520 lines)
0.079(3 lines)
0.739(28 lines)
12.678(480 lines)
0.086 (3 lines ) 0.237(9 lines)
+/+
Or -/-
Y
4
640 x 480
31.5
37.861kHz
72.809Hz
-/-
Y