LG RD-JT30 Service Manual page 167

5
D
C
TP173
J13 TP174
1 TP175
VCC
TP176
2
DATA-
3
DATA+
4
GND
2210218261
B
A
5
4
These parts of this portion should be connected closely.
The trace width of this portion should be
greater than 25 mils.
USB-V L14 80 OHM
U SB-D-A L15 80 OHM
USB-D+A L16 80 OHM
D9 D10 D11
C143
TZMC5V1 TZMC5V1 TZMC5V1 C142
47P J
47P J
L17 80 OHM
US B -GND
4
3
VUSB
VR-A
C136 D8
C137
10U C138
0. 1U K
16V TZMC5V1 4.7 U
25V
R584
1.5K
VUSB
VUSB
U SB-D-
USB-D+
R143
C141
R144
20K
C144 10U
4.7K
0. 1U Z
16V
VUSB-A
C145
0. 1U Z
3
2
P5V
U111
5
VCC
R140 47
4
Y
74LVC1G126
U25
5
VDD
4 12
VR data
C139 RST-A R142 20K
20
RST
0. 1U K
C140
1 19
VSS KI0
0. 1U K
18
KI1
6 17
USBMD KI2
7 16
Iclk KI3
10 15
Idata K01
14
K02
13
DSW
9 11
D- NC
8
D+
MC68HC908JB8
Y3
6MHZ
R145 10M
USB-X2 USB-X1
C146 C147
20P J 20P J
Benq Corporation
Project Code
Title
Size
<Size>
Wed nesd ay, Nove mber 20, 2002
D a te:
2
1
1
OE USBSW
2
A I R RC V R
3
GND
VUSB
Model Name OEM/ODM Model Name
N A
99.J5577.001 JT31
MAIN BOARD
P C B R ev. Do cu ment Number R e v .
PC B P/N
0
48.J5501.S02 S02
304-C01
Sheet 11 o f 20
Pre pared By Re vi ewed By A p proved By
D A V I D HN L IN
A NGEL HU H.C . TSOU
1
D
C
B
A