Acer D240H Service Manual page 11

Acer
Signal SPEC:
4.6.2
Items
Analog RGB signal
Sync
H-Sync Frequency
V-Sync Frequency
4.7 Timing table
Mode
Resolution
640*480@60Hz
VGA
640*480@72Hz
640*480@75Hz
800*600@56Hz
800*600@60Hz
SVGA
800*600@72Hz
800*600@75Hz
1024*768@60Hz
XGA
1024*768@70Hz
1024*768@75Hz
1152*864@75Hz
1280*960@60Hz
1280*720@60Hz
1280*1024@60Hz
SXGA
1280*1024@75Hz
WXGA
1360*768@60Hz
1440*900@60Hz
WXGA+
1440*900@75Hz
1680*1050@60Hz
WSXGA+
1680*1050@75Hz (VGA Only)
1600*1200@60Hz
UXGA
1920*1080(Red)@60Hz
1920*1080@60Hz (VGA Only)
720x400@70Hz
VGA 640*480@66.7Hz
15
Condition
Input impedance =75 Ohm
Input impedance ≧1k Ohm TTL level, Separate H/V-sync(+/-)
VESA MODES
Horizontal
Nominal
Frequency
+/-0.5KHz
31.469
37.861
37.5
35.156
37.879
48.077
46.875
48.363
56.476
60.023
67.5
60
44.955
63.981
79.976
47.712
55.935
70.635
65.29
82.306
75
66.587
67.158
IBM MODES
31.469
MAC MODES
35
DDC SCL
Specification
0.7Vp-p
31K~83KHz
49~76Hz
Vertical
Nominal
Frequency
Sync Polarity +/-1Hz
N 59.941
N 72.809
N 75
P 56.25
P 60.317
P 72.188
P 75
N 60.004
N 70.069
P 75.029
P 75
P 60
P 59.94
P 60.02
P 75.025
P 60.015
N 59.89
N 74.984
N 59.954
N 74.89
P 60
P 59.93
N 59.96
N 70.087
66.667
P
Acer –LCD-D240H
Nominal Pixel
Sync
Clock (MHz)
Polarity
N 25.175
N 31.5
N 31.5
P 36
P 40
P 50
P 49.5
N 65
N 75
P 78.75
P 108
P 108
P 74.176
P 108
P 135
P 85.5
P 106.5
P 136.75
P 146.25
P 187.00
P 162
N 138.5
P 173
P 28.322
N 30.24