Acer AT2002, Service Manual

Page: 71 / 85

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
B IN
VGA_VS
GSDA
G IN
GSCL
VGA_HS
GSDA
GSCL
RIN
VGA_DET
V-PC_R1
V-PC_G1
V-PC_R
V-PC_B
V-PC_G
V-PC_B1
LINE_R_IN
LINE_L_IN
PC5V
GND
GND
GND
GND GND
GND
GND
+5V_IN
+3.3V_COM
PC5V +5VB
GND
GND
+3.3V_COM
AGND
GND
GND
VGA_SCL 3
VGA_SDA 3
S-EDID 3
VGA_DET 3
A_HS 3
A_VS 3
B1 3
A1 3
C1 3
A-VGA_R 6
A-VGA_L 6
Title
Size Document Number R e v
Date: Sheet o f
HUDSON PLATFORM
VGA INPUT
2 8 Monday, June 26, 2006
B3C
SCHEMATIC1
AT2002 ,20" TV
PC AUDIO IN
VGA connector
I2C Address: 1010 000x
2 to 1 SW
S-EDID
H: EDID FLASH ENABLE
L: EDID FLASH DISABLE
75-ohm terminating resistor
very close to the VGA
conn.
ZD3
NC/9V
2
1
R40 33K/6
U2
AT24C02A
A0
1
A1
2
A2
3
VSS
4
VCC
8
WP
7
SCL
6
SDA
5
C21
0.1uF/6
R44
47K/6
C23
0.1uF/6
D1
NC/BAV99L
2
3
1
R3
2
10k/
6
R23 20R/6
1 2
C1
2
N
C
/10pF
/6
R36 NC/ 0R/6
R2
6
75R
/6
F
BAT54
D5
1 2
3
R41 33K/6
CN2
D-SUB 15P
1
6
2
7
3
8
4
9
5 11
12
13
14
15
10
16
17
U1B
74LCX14MX
3 4
14
7
C26
NC/22P/6
C19
NC/47P
R45
100R/6
U1C
74LCX14MX
5 6
14
7
R42
47R/6
R37
10K/6
R2
7
75R
/6
F
ZD1
NC/9V
2
1
ZD6
NC/9V
2
1
FB2 BEAD/6
ZD5
NC/9V
2
1
C24
1000pF/6
C27
NC/22P/6
R2
5
75R
/6
F
FB1 BEAD/6
C1
6
N
C
/10pF
/6
U1A
74LCX14MX
1 2
14
7
U1D
74LCX14MX
9 8
14
7
FB3 BEAD/6
R38
10K/6
C20
NC/47P
R43
47K/6
R22 20R/6
1 2
ZD4
NC/9V
2
1
Q1
2N7002E
3
2
1
C1
4
N
C
/10pF
/6
C25
1000pF/6
R29 47R/6
1 2
CN3
HCH-PPJ-35D
2
3
4
5
1
ZD2
NC/9V
2
1
R47
NC/ 0R/6
R48
100R/6
1 2
D2
NC/BAV99L
2
3
1
R3
3
10k/
6
R35
NC/ 0R/6
R28 100R/6
R24 20R/6
1 2
C9 0.1uF/6
C11 0.1uF/6
C22
0.1uF/6
R30 47R/6
1 2
D3
NC/BAV99L
2
3
1
R31 NC/ 0R/6 R34 NC/ 0R/6
R39
47R/6
C1
3
N
C
/10pF
/6
C1
7
N
C
/10pF
/6
C10 0.1uF/6
D4
1N4148
2 1
C1
5
0.
1
u
F
/6
C1
8
N
C
/10pF
/6
R46
4.7K/6
1
2