Page 4
Circuit D escrip tion
A L502
Tabl e 1
Atten tion :
1. Wh en resolu tion be y on d 1024 x 768 is in pu tted, resolu tion is lowered with Do wn scalin g to 1024 x 768, an d
in dicat ed, an d OSD sh ou ld in di cate OUT of Ran g e.
9.3
User Con trol
9.3.1 Relate d ports of I303
Port
Pin No.
I/O
Signal name
Function
Remarks
P1.5
7
I
POWER
Power switch input
Power ON , OFF
control
P1.1
3
I
DOWN
switch input
( ) key
P1.0
2
I
UP
switch input
( ) key
P1.3
5
I
-
- switch input
( - ) key
P1.2
4
I
+
+ switch input
( + ) key
Polarity
Mode
No
Resolution
H-freq
(KHz)
Band Width
(MHz)
H
V
1.
247
VGA 720 x 350 70Hz
31.47
28.322
+
-
2.
102
VGA 720 x 400 70Hz
31.47
28.322
-
+
3.
103
VGA 640 x 480 60Hz
31.47
25.175
-
-
4.
182
MAC 640 x 480 66Hz
35
32.24
-
-
5.
173
VESA 640 X 480 72Hz
37.86
31.5
-
-
6.
109
VESA 640 X 480 75Hz
37.5
31.5
-
-
7.
104
VESA 800 x 600 56Hz
35.16
36
+
+
8.
116
VESA 800 x 600 60Hz
37.88
40
+
+
9.
110
VESA 800 x 600 75Hz
46.88
49.5
+
+
10.
117
VESA 800 x 600 72Hz
48.08
50
+
+
11.
108
MAC 832 x 624 75Hz
49.72
57.283
-
-
12.
118
VESA 1024 x 768 60Hz
48.36
65
-
-
13.
217
SUN 1024 x 768 65Hz
52.45
70.49
-
-
14.
157
VESA 1024 x 768 70Hz
56.48
75
-
-
15.
141
VESA 1024 x 768 75Hz
60.02
78.75
+
+
