Esquema De Circuito Del Hdmi / Usb / Karaoke / Front Connector - LG DV497H Manual De Servicio

6. ESQUEMA DE CIRCUITO DEL HDMI / USB / KARAOKE / FRONT CONNECTOR

Differential signals (TXC+/-, TX1+/-, TX2+/- and TX3+/-):
50ohm single_ended, and 100ohm differential
P4
21
TX2+
1
TX2-
3
5
TX0+
7
TX0- 9
11
HD MI_CEC
13
D SCL
15
17
HD MI_HPD R95 20K 19
20
R99 HDMI
51K
H GND
HGND
XP7
4PIN/2.0mm
VCC_USB
1
2
USB_DM
3
USB_DP
4
U5
USB OUT 2 3
VCC_USB
1 4
PRTR5V0U2X
GND
DVCC3
AVCC12
XP8 D2 R165
(4PIN/2.0mm) 1N4148
10K
1
2
C119 0.47uF
3
4
R166
C118 C151 22
KARAOKA INPUT
1000pF 1000pF
GND GND
NOTICE: when KARAOKE is open,this part is not connect
23
DD C_SCL
2
TX1+
4
TX1-
6
8
10 TXC+
TXC-
12
14
D SDA
16
18
VCC5
22
C89
0.1uF
HGND
DD C_SDA
R174 0/0805
Q33
AO3402/NC
F1
3 2
M5V
800mA/NC
C96
0.1uF
R120 4.7K/NC
+12V
R108 180/NC USB_POWER 2
R150 180/NC
KARAOKE Circuit
AIN_R 3
MIC_DET 3
VCC3
VCC5
R104 R105
4.7K 1.8K
D SCL
1 3
Q25 2SK3018
R152 0/NC
VCC3
VCC5
R106
R107
4.7K 1.8K
1 3 D SDA
Q26 2SK3018
R151 0/NC
VCC3
R114
4.7K
IR_IN
R96
R121 0R
M5V
VFD_DATA R97 100
VFD_STB R98 100
VFD_CLK R93 100
3-33 3-34
TO FRONT PANEL
XP6
6PIN/2.0mm
33 IR
6
P+5V
5
GND
4
DATA
3
STB
2
1 CLK
C93 C95 C92 C91 C90
100pF 0.1uF 100p 100p 100p
IR_IN
IR_IN 3
VFD_CLK
VFD_CLK 3
VFD_STB
VFD_STB 3
VFD_DATA
VFD_DATA 3
USB_DM
USB_DM 3
USB_DP
USB_DP 3
TXC+
TXC+ 3
TXC-
TXC- 3
TX0+
TX0+ 3
TX0-
TX0- 3
TX1+
TX1+ 3
TX1-
TX1- 3
TX2+
TX2+ 3
TX2-
TX2- 3
DD C_SCL
DDC_SCL 3
DD C_SDA
DDC_SDA 3
HD MI_HPD
HDMI_HPD 3
HD MI_CEC
HDMI_CEC 3
TO FRONT PANEL