Acer AL2423 W Service Manual page 52

5
CN1 CN1
SCL_VGA 15 5
10
VS_VGA
14 4
9
HS_VGA 13 3
8
SDA_VGA 12 2
7
11 1
6
D
DB15 HD DB15 HD
ZD1 ZD1 ZD2 ZD2
TZMC5V6/NC TZMC5V6/NC TZMC5V6/NC TZMC5V6/NC
AGND
100R 1% 100R 1%
3 3 R20 R20
NC
C15 C15
1 2 2 1 33pF/NC 33pF/NC
ZD5V6 DAN217 AGND
R21 R21
Component Component
top view top view
100R 1% 100R 1%
C17 C17
33pF/NC 33pF/NC
AGND
CN2 CN2
C
25
1
RX2-
2
RX2+
3
GND
4
RX4-
5
RX4+
6 SCL_DVI
SCL
7 SDA_DVI
SDA
VS
8
VS
9
RX1-
10
RX1+
11
GND
12 DVI_+5V
RX3-
13
RX3+
R33 R33 10K 10K
14
5V
15
GND
16 HDP
HP
17
RX0-
18
RX0+
19
GND
20
RX5-
21
RX5+
22
GND
23
RXC+
24
RXC-
RED_IN
C1
RED
C2 GREEN_IN
GRN
BLUE_IN
C3
BLU
HS
C4
HS
C5
GND
26
B
DVI-I DVI-I
GND GND
+3.3_DVDD
Cable Detection
Condition LBADC_IN2
R54 R54 No cable 3.29V
3K2 3K2 DVI Only 2.37V
VGA Only 1.98V
VGA & DVI 1.60V
R55 R55 8K2 8K2 DVI_cable_detect
Cable_detect
VGA_cable_detect
R60 R60 4K7 4K7
C42 C42 R63 R63
1M 1M
0.1uF 0.1uF
HS
GND GND
A
VS
ZD5 ZD5
TZMC5V6/NC TZMC5V6/NC
5
4
VGA_+5V
AGND AGND AGND
C2 C2 C3 C3
22pF/NC 22pF/NC 22pF/NC 22pF/NC
VGA_cable_detect
+3.3_AVDD
D2 D2 D3 D3 D4 D4
DAN217K/NC DAN217K/NC DAN217K/NC DAN217K/NC DAN217K/NC DAN217K/NC
3 3 3
C9 C9 C10 C10
AGND 0.1uF 0.1uF 0.1uF 0.1uF
R19 R19 0R 0R
OPTIONAL
U16 U16
1 13
1A 6A
2 12
1Y 6Y
3 11
2A 5A
4 10
2Y 5Y
C16 C16 +3.3_DVDD
5
3A
33pF 33pF 6
3Y
8 14
4Y VCC
AGND C14 C14
9 7
4A GND
0.1uF/NC 0.1uF/NC
SN74LVC14A/NC SN74LVC14A/NC AGND
AGND
C18 C18
33pF 33pF
R22 R22 0R 0R
AGND
D6 D6 D7 D7
DAN217K/NC DAN217K/NC DAN217K/NC DAN217K/NC
3 3
C22 C22
0.1uF 0.1uF
DVI_cable_detect
HDP
GND
D10 D10 D11 D11
DAN217K/NC DAN217K/NC DAN217K/NC DAN217K/NC
3 3
C27 C27
0.1uF 0.1uF
GND
BLUE_IN R49 R49 0R 0R
GREEN_IN R50 R50 0R 0R
RED_IN R52 R52 0R 0R
+3.3_AVDD
D14 D14 D15 D15
DAN217K/NC DAN217K/NC
3 3
C35 C35 C36 C36 C37 C37 C38 C38
33pF/NC 33pF/NC 33pF/NC 33pF/NC 33pF/NC 33pF/NC
0.1uF 0.1uF
GND GND GND
R62 R62 0R 0R
OPTIONAL
U18 U18
R66 R66 1
1A
2
1Y
3
2A
20R 1% 20R 1%
4
2Y
C44 C44
33pF/NC 33pF/NC C45 C45 5
3A
33pF 33pF 6
3Y
GND
8
4Y VCC
R70 R70 GND
9
4A GND
20R 1% 20R 1% SN74LVC14A/NC SN74LVC14A/NC
C46 C46
33pF/NC 33pF/NC C47 C47
33pF 33pF
ZD6 ZD6 GND R71 R71 0R 0R
TZMC5V6/NC TZMC5V6/NC GND
GND
4
3
Modify for EMI 11/08
C4 C4 R1 R1 47R 1% 47R 1% C1 C1 2.2uF 2.2uF
22pF/NC 22pF/NC
DNP
R2 R2
75R 1% 75R 1% R3 R3 47R 47R C5 C5 2.2uF 2.2uF
R4 R4 0R 0R
R8 R8 0R 0R AGND R9 R9 47R 1% 47R 1% C7 C7 2.2uF 2.2uF
R10 R10 0R 0R
C43 C43 C170 C170
R11 R11
75R 1% 75R 1% 22pF/NC 22pF/NC 22pF/NC 22pF/NC
AGND AGND AGND
C11 C11 R15 R15 47R 1% 47R 1% C8 C8 2.2uF 2.2uF
RED1+
0.1uF 0.1uF
R17 R17
75R 1% 75R 1%
AGND
AGND
HSYNC1
EMI-PAD EMI-PAD EMI-PAD EMI-PAD EMI-PAD EMI-PAD EMI-PAD EMI-PAD EMI-PAD EMI-PAD EMI-PAD EMI-PAD
PAD1 PAD1 PAD2 PAD2 PAD3 PAD3 PAD4 PAD4 PAD5 PAD5 PAD6 PAD6
VSYNC1
AGND AGND AGND AGND AGND GND_AUD
R26 R26 10R 1% 10R 1%
RX2-
R28 R28 10R 1% 10R 1%
RX2+
R29 R29 10R 1% 10R 1%
RX1-
R30 R30 10R 1% 10R 1%
RX1+
+3.3_AVDD
D8 D8 D9 D9
DAN217K/NC DAN217K/NC DAN217K/NC DAN217K/NC
3 3
C23 C23 C24 C24 C25 C25
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
R34 R34 10R 1% 10R 1%
RX0-
R35 R35 10R 1% 10R 1%
RX0+
R36 R36 10R 1% 10R 1%
RXC+
R37 R37 10R 1% 10R 1%
RXC-
+3.3_AVDD
D12 D12 D13 D13
DAN217K/NC DAN217K/NC DAN217K/NC DAN217K/NC
3 3
C28 C28 C29 C29 C30 C30
0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
R43 R43 47R 1% 47R 1% C31 C31
R45 R45
DNP
75R 1% 75R 1%
R47 R47 47R 47R C32 C32
GND
R51 R51 47R 1% 47R 1% C33 C33
R53 R53
75R 1% 75R 1%
D16 D16
DAN217K/NC DAN217K/NC DAN217K/NC DAN217K/NC
3
C39 C39 C40 C40 GND
R56 R56 47R 1% 47R 1% C41 C41
0.1uF 0.1uF 0.1uF 0.1uF
R61 R61
GND 75R 1% 75R 1%
13 GND
6A
12
6Y HSYNC2
11
5A
10
5Y
+3.3_DVDD
14
C200 C200
7
VSYNC2
0.1uF/NC 0.1uF/NC
AGND
AGND
3
2
+5V VGA_+5V
1 1 2 2
3 3
D1 D1
BLUE1+
BAT54C BAT54C
C6 C6
SOGMCSS1
0.1uF 0.1uF
GND
GREEN1+
U1 U1
1 8
A0 VCC
C172 C172
2 7
A1 WP
3 6 R12 R12
A2 SCL
22pF/NC 22pF/NC 4 5 R13 R13
GND SDA
24AA02 24AA02
R14 R14 0R 0R
AGND
GND
R16 R16 100R 100R
DDC_SDA_VGA
R18 R18 100R 100R
DDC_SCL_VGA
C12 C12 C13 C13
100pF 100pF 100pF 100pF
GND GND
EMI-PAD EMI-PAD
+5V
PAD7 PAD7
1 1 2 2
3 3
D5 D5
DDCD_5V BAT54C BAT54C
R23 R23 R24 R24 C19 C19
GND_PWR 0.1uF/NC 0.1uF/NC
10K/NC 10K/NC 10K/NC 10K/NC
U3 U3
GND
12
X0
SCL_DVI R25 R25 100R/NC 100R/NC 14 13
X X1
SDA_DVI R27 R27 100R/NC 100R/NC 15
Y
2
Y0
4 1
Z Y1
C20 C20 C21 C21
5
Z0
100pF 100pF 100pF 100pF 3
Z1
6
INH
GND GND
7 11
VEE A
10
B
8 9
GND C
74HCT4053/NC 74HCT4053/NC
GND R32 R32
100K/NC 100K/NC
GND
SCL_DVI R212 R212 100R 100R DSCL_DVI
SDA_DVI R213 R213 100R/NC 100R/NC ASDA_DVI
R214 R214 100R 100R DSDA_DVI
R215 R215 100R/NC 100R/NC ASCL_DVI
Modify DDC 11/2 DDCD_5V
C26 C26
0.1uF/NC 0.1uF/NC
GND
U4 U4
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCL
4 5
GND SDA
0.1uF 0.1uF
BLUE2+
24AA02/NC 24AA02/NC
R44 R44 0R/NC 0R/NC
GND
0.1uF 0.1uF
SOGMCSS2
0.1uF 0.1uF
GREEN2+
DDCD_5V
C34 C34
0.1uF 0.1uF
0.1uF 0.1uF
RED2+
GND
U5 U5
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCL
4 5
GND SDA
24AA02 24AA02
R67 R67 0R 0R
GND
Title Title Title
04. Graphic Input 04. Graphic Input 04. Graphic Input
Size Size Size Document Number Document Number Document Number
SCHEMATIC1 SCHEMATIC1 SCHEMATIC1
Date: Date: Date: Monday, January 02, 2006 Monday, January 02, 2006 Monday, January 02, 2006
2
1
3
1 2
BAT54C
Component
top view
R235 R235 100R/NC 100R/NC
GPIO16_EDID_A
100R 100R SCL_VGA
D
100R 100R SDA_VGA
ZD3 ZD3 ZD4 ZD4
TZMC5V6/NC TZMC5V6/NC TZMC5V6/NC TZMC5V6/NC
GND
3
DVI_+5V
1 2
BAT54C
Component
top view
DSCL_DVI
ASCL_DVI
DSDA_DVI
ASDA_DVI
C
GND
EDID_SEL
R31 R31
0R/NC 0R/NC
R222 R222 100R 100R
GPIO14_EDID_DA
B
R41 R41 100R/NC 100R/NC ASCL_DVI
R42 R42 100R/NC 100R/NC ASDA_DVI
R46 R46 100R/NC 100R/NC
DDC_SDA_0
R48 R48 100R/NC 100R/NC
DDC_SCL_0
DDCD_5V
R234 R234 100R/NC 100R/NC
GPIO15_EDID_D
R64 R64 100R 100R DSCL_DVI
R65 R65 100R 100R DSDA_DVI
R68 R68 100R 100R
DDC_SDA_DVI
R69 R69 100R 100R
DDC_SCL_DVI
A
PROJECT : PROJECT : WDTB
Techview Inc. Techview Inc.
Rev Rev Rev
WDTB C2A C2A C2A
Sheet Sheet Sheet 4 4 4 of of of 8 8 8
1