LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 109 -
2mm
rev 1.0
u-USB Connector
50V
For OVP test
S/W
rev 1.0
1 (USBH)
2mm
HIGH
USBH_SEL
Close to u-USB connector
TA OVP Circuit
Exchange DP and DM for layout.
2
LOW
VCC
9
_OE
8
NLAS7222C
1
D+
2
D-
3
GND
HSD1+
7
HSD1-
6
HSD2+
5
4
HSD2-
S
10
U404
GND2
1
IN
OUT
FL401
NFM18PC104R1C3
GND1
3900p
C405
VCHG_VBUS
C413
0.1u
VREG_MSMP_2.6V
+VPWR
100ohm
R404
D401
PRSB6.8C
INSTPAR
ZD401
PSD12-LF
3
CNTRL
DRAIN
4
9
DRAIN_THERMAL
6
GATE
2
GND
1
IN
OUT
7
SRC
5
VCC
8
U402
NUS3065MUTAG
10
11
12
13
2
3
4
5
6
7
8
9
CN401
1
R401
200K
ID
USB_DP_TX
USBH_SEL
USBH_EN_N
USBH_DP
USBH_DM
USB_DM_RX
Summary of Contents for CT815
Page 1: ...Date May 2009 Issue 1 0 Service Manual Model CT815 Service Manual CT815 Internal Use Only ...
Page 221: ...Note ...
Page 222: ...Note ...