Video Signals - Acer B223W Service Manual

Acer
4. Input / Output Signal Specifications

4.1 Video signals

Analog
RGB signal:
Sync:
Positive and negative sync of Separate Horizontal/Vertical Sync
Digital :
4.2 Signal Timing
Through D-SUB/DVI connectors, this unit can support F
pixel clock 165MHz input signal and WSXGA+ output. Modes details as below:
VESA MODES
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
1152*720@60Hz
1280*1024@60Hz
SXGA
1280*1024@75Hz
SXGA+ 1400x1050@60Hz
L/2
4
1
7
0.7Vp-p (Input impedance =
TTL level (Input impedance ≧ 1k Ohm)
TMDS Signal:
Total
L/10
W/10
5 6
2 3
8 9
W/2
75 Ohm)
(min) ±200mVpp@24Bit
= 31.5~84 KHz, Fv=56~76Hz, with maximum
H
Horizontal
Nominal
Sync
Frequency
Polarity
+/-0.5KHz
31.469 N
37.861 N
37.500 N
35.156 P
37.879 P
48.077 P
46.875 P
48.363 N
56.476 N
60.023 P
67.500 P
60.000 P
44.859 N
63.981 P
79.976 P
65.317 N
7
Acer –LCD-B223W
Vertical
Nominal
Pixel Clock
Nominal
Sync
(MHz)
Frequency
Polarity
+/-1Hz
59.941 N 25.175
72.809 N 31.500
75.000 N 31.500
56.250 P 36.000
60.317 P 40.000
72.188 P 50.000
75.000 P 49.500
60.004 N 65.000
70.069 N 75.000
75.029 P 78.750
75.000 P 108.000
60.000 P 108.000
59.972 P 66.750
60.020 P 108.000
75.025 P 135.000
59.978 N 121.75