AOC LM2028 Service Manual page 17

+5V
C1 0.1uF/16V
DVI CONNECTOR GND
CN1
D1 D2 D3
BAV99 BAV99 BAV99
25
25
1 RX2-IN
RX2-
2 RX2+IN
RX2+
3
GND
4
RX4-
5
RX4+
DVISCL
6
SCL
7 DVISDA
SDA
8
VS
9 RX1-IN
RX1-
10 RX1+IN
RX1+
11
GND
12 DVI_5V
RX3- R5
13
RX3+
14 10K 1/16W
5V
15
GND
HOT_PLUG
16
HP
17 RX0-IN
RX0-
18 RX0+IN
RX0+
19
GND
20
RX5-
21
RX5+
22
GND
RXC+IN
23
RXC+
RXC-IN
24
RXC-
C1 93/4/7
RED
C2
Serial Resistor DVI signal
GRN
C3
BLU
C4 GND
HS
C5
GND
26
26
GND DVI_CON
D12 MLL5232B 5.6V
DVISCL
GND
D13 MLL5232B 5.6V DVISDA
VGASCL
VGASDA
D14
GND D15 MLL5232B 5.6V
920623:EDID Function
VGA_5V +5V
D17
BAT54C-GS08
VGA_EDID
C10
R18
0.1uF/16V R23 R24
U2 10K 1/16W 10K 1/16W
1 8
A0 VCC
2 7 GND
A1 WP
3 6
A2 SCL
4 5 R25
GND SDA
WP_DDC_VGA_IN
M24C02WMN6
GND
ANALOG DDC
6 RXD
6 TXD
VGA_EDID
920623:ISP Function
R35
4.7K 1/16W
WP_DDC_VGA_IN
Q300
PMBS3904 R300
R39
WP_DDC_VGA 6
NC 10K 1/16W
R301
GND
30K 1/16W
DVI_EDID
GND GND
R305
4.7K 1/16W 920629:EDID Addition
Protection
WP_DDC_DVI_IN
Q301
PMBS3904 R302
R306
WP_DDC_DVI 6
NC 10K 1/16W
R303
GND
30K 1/16W
GND GND
‚ ñ SN[¶ u 5~ ô O î • D e™ N u(
+5V +5V +5V
C2 0.1uF/16V C3 0.1uF/16V
GND GND
D4 D5 D6 D7 D8
BAV99 BAV99 BAV99 BAV99 BAV99
DVI_5V
+5V
920623:EDID Function
GND
+5V 6,7
D10 MLL5232B 5.6V D11
BAT54C-GS08
DVI_EDID
R12 R13
10K 1/16W 10K 1/16W
R14 100 OHM
R15 100 OHM
MLL5232B 5.6V
U1
1 8
A0 VCC
WP_DDC_DVI_IN
2 7
A1 WP
3 6
A2 SCL
4 5 C5
GND SDA
M24C02WMN6 0.1uF/16V
GND
DIGITAL DDC GND
+5V
R16
10K 1/16W
R17 100 OHM
GND
D16 MLL5232B 5.6V
Graphic Inputs
920623:Re-Name
CN2
VGA_SCL_IN
100 OHM 15 5
10
14 4
9 VGA_5V
13 3 A-BLUE
8
100 OHM VGA_SDA_IN 12 2 A-GREEN
7
11 1 A-RED
6
VGA_DB15 GND
R29 0
R30 0
RGB GND
狠
‫ֹל‬Conn
D21 D22
MLL5232B 5.6V
MLL5232B 5.6V Near the VGA Conn
GND
A-HS
A-VS
D23
MLL5232B 5.6V
GND GND
QQ:505966338
C4 0.1uF/16V
GND
TP1
R1 10 1/16W
R2 10 1/16W
TP3
R3 10 1/16W
R4 10 1/16W
TP5
R7 10 1/16W
R8 10 1/16W
TP6
TP7
R10 10 1/16W
R11 10 1/16W
VGA_CAB 6
D18 D19 D20
BAV99 BAV99 BAV99
93/4/7
3 VGA GND traces as Differential Pair
with VGA Analog signals(RGB).
GND GND GND
L1 120 OHM 0603
R37 100 OHM
D24
R40 C15 R41
MLL5232B 5.6V
2.2K 1/16W 33pF 2.2K
GND
Page 17 of 66
RX2- 5
RX2+ 5
TP2
RX1- 5
RX1+ 5
TP4
R6 10 1/16W
RX0- 5
R9
RX0+ 5
100K 1/16W D9
MLL5232B 5.6V
RXC+ 5
RXC- 5
GND GND
TP8
DVI Test Points are just SMTobservation points
on the traces with no stub
DVI_SCL
DVI_SDA 5
VGA_SCL 6
VGA_SDA 6
+5V 920702:DSN Function
C6
0.1uF/16V
GND R19 470 1/16W C7
R20 33 1/16W C8
R21 75 1/16W C9
R22 33 1/16W C11
R26 75 1/16W C12
R27 33 1/16W C13
R28 75 1/16W C14
RGB SIGNAL GNDs at 2-mm from respective
RGB series Capacitors
R34 1K 1/16W
R38 1K 1/16W
C16
1/16W 220pF
Title 03. Graphic/Component IN
Size Document Number
C
Date: Thursday , August 19, 2004
AOC LM2028
DVI_CAB 6
5
1nF
SOG 5
47nF
BLUE+ 5
47nF
BLUE- 5
47nF
GREEN+ 5
47nF
GREEN- 5
47nF
RED+ 5
47nF
RED- 5
AHS 5
AVS 5
Rev
A
Sheet 3 of 7