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4. TROUBLE SHOOTING
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Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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LG530G
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<Figure 3.7 Signal in USB connection>
TP1
Circuit Diagram
FL403
1uF
4
3
2
1
IN
OUT
G1
G2
C424
1u
VBUS
22pF
C425
22pF
C426
D407
VA403
VA402
VA401
C423
DNI
CN402
11
10
9
5
4
3
2
1
8
7
6
VBUS
D-
D+
ID
GND
USB_ID
USB_DN
USB_DP
Optional Block for EMI Test
Line Width: 2mm
Close to uUSB Conn
uUSB 5pin
Close to uUSB Conn
I/O CONN
TP1