Acer AL1702 Service Manual page 10

Table 2 video mode
Mode
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Table 3 the Hsync, Vsync distinction
Indication
resolution
720 x 400
640 x 480
800 x 600
832 x 624
1024 x 768
1152 x 864
1280 x 960
1280 x 1024
1280 x 1024
Page 8
Resolution
720x400 (70Hz)
640x480 (59.94Hz) 31.469
640x480 (66.67Hz) 35
640x480 (72Hz)
640x480 (75Hz)
800x600 (56.25Hz) 35.156
800x600 (60Hz)
800x600 (72Hz)
800x600 (75Hz)
832x624 (74.55Hz) 49.722
1024x768 (60Hz)
1024x768 (70Hz)
1024x768 (75Hz)
1152x864 (75Hz)
1280x960 (60Hz)
1280x1024 (60Hz)
1280x1024 (75Hz)
Distinction Hsync
30.5KHz≦fH≦32.5KHz
30.5KHz≦fH≦32.5KHz
34KHz≦fH≦36KHz
36.9KHz≦fH≦38.9KHz
36.5KHz≦fH≦38.5KHz
34.2KHz≦fH≦36.2KHz
36.9KHz≦fH≦38.9KHz
47.1KHz≦fH≦49.1KHz
45.9KHz≦fH≦47.9KHz
48.7KHz≦fH≦50.7KHz
47.4KHz≦fH≦49.4KHz
55.5KHz≦fH≦57.5KHz
59KHz≦fH≦61KHz
66.5KHz≦fH≦68.5KHz
59KHz≦fH≦61KHz
62.9KHz≦fH≦64.9KHz
79KHz≦fH≦81KHz
H-Freq Band Width
(KHz) (MHz)
31.469 28.322
25.175
30.24
37.861 31.5
37.5 31.5
36
37.879 40
48.077 50
46.875 49.5
57.28
48.363 65
56.476 75
60.023 78.75
67.5 108
60 108
63.981 108
79.976 135
Distinction Vsync
69Hz≦fV≦71Hz
59Hz≦fV≦61Hz
65.7Hz≦fV≦67.7Hz
71.8Hz≦fV≦73.8Hz
74Hz≦fV≦76Hz
55.3Hz≦fV≦57.3Hz
59.3Hz≦fV≦61.3Hz
71.2Hz≦fV≦73.2Hz
74Hz≦fV≦76Hz
73.5Hz≦fV≦75.5Hz
59Hz≦fV≦61Hz
69Hz≦fV≦71Hz
74Hz≦fV≦76Hz
74Hz≦fV≦76Hz
59Hz≦fV≦61Hz
59Hz≦fV≦61Hz
74Hz≦fV≦76Hz
AL1702
Polarity
H V
- +
- -
- -
- -
- -
+ +
+ +
+ +
+ +
- -
- -
- -
+ +
+ +
+ +
+ +
+ +
The fixed
mode
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17