Schematic Diagram; Vga Input - Acer AL512 Service Manual

6. SCHEMATIC DIAGRAM

6.1. VGA INPUT

DDC-SCL DDC-SDA
D114 C169 D115 C170
VPORT VPORT
NC NC
J101
13
13
12 RED
12
R-GND
11
11
10 GREEN
10
9 G-GND
9
BLUE
8
8
7 B-GND
7
PC_5V
6
6
5
5
4 HSYNC
4
VSYNC
3
3
2 DDC-SDA
2
1 DDC-SCL
1
CONN RCPT 13
C109
VCC
0.1u
D111
1N4148
DDC_VCCA
C112
I102
1 8
NC VCC
2 7
0.1u
NC VCLK
3 6
NC SCK
4 5
VSS SDA
24LC21
8 PIN SOCKET
P108
D103
HSYNC VSYNC
D106 D107 D108
NC NC
L101
BLUE
L102
GREEN
L103
RED
R105 22
VGA_GND
R103 22
R100 R101 R102
L100
200 75 1% 75 1% 75 1%
C172 C110
VPORT 150pF
D112
1N4148 R108 change to C172
R109 150
VSYNC
R110 150
DDC-SCL
DDC-SCL 3
DDC-SDA
DDC-SDA 3
R111 150
DDC-SCL1 3
DDC-SDA1 3
D104 D105
NC NC NC
D109 D110
NC NC NC
32
32
32
C105 C106
VPORT VPORT
I101A
1 2
C108 R105 74LVC14
R106 1K/NC
VPORT 10K/NC
I101C
5 6
Optional 74LVC14
+3.3V
C113
0.1u
JT166L 2202120100
P701
8 HEADER 2mm
+3.3V
PWR/LED
S705
S704 S703 S702
C101 0.1u
C102 0.1u
C103 0.1u
NC
C107 C100
VPORT
Optional
VGA-GND
I101B
R104 100
3 4
PA-HSYNC 2
C104
74LVC14
+3.3V
33p
I101D
R107 100
9 8
PA-VSYNC 2
C111
74LVC14
33p
I101E
11 10
74LVC14
I101F
13 12
74LVC14
PWR/SW
PSM/LED
GREEN ORANGE
S701
D701
PA-BLUE 2
PA-GREEN 2
PA-RED 2
SOGI 2
74LVC14 VCC IS +3.3V
D12 NF4 C14 R11 I2
AL512/AL513 9/20/2002 -9-