LG GW620 - Page 141

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
1LF
1
03
5
100YEFS
3
C
1R
4
01
CP
81MFN
NI
TUO
1DNG
2
DNG
1u
C118
GU073-5P-SD-E1500
ENRY0008801
CN18
15
13
11
9
7
5
4
3
2
1
14
12
10
8
6
1UF
C214
22pF
C225
VCHG_VBUS
U30MAX14528
9
6
53
4
82
71
IN1OUT1
IN2OUT2
IC1
OVLOIC2
D
N
G
D
N
GP
C224
22pF
2D
Z
FL-21DSP
RAP
TS
N
I
MAX_DP
MAX_DM
USB_ID
2mm
2A
2mm
Close by uUSB CONN
Close by uUSB CONN
uUSB 5pin
0.1UF
C103
33ohms
R51
R22
100Kohms
C244
100pF
100pFC243
VREG_TCXO_2.85V
C325
0.001uF
C41
0.01uF
smho09
4
R
VREG_USB_1.8V
R65 100ohms
0.1UF
C102
TC7SH04FS
U5
2
41
5
VCC
GND
19.2MHz
DSA321SCA X1
21
34
VDD
OUT
VCONTGND
C323 0.001uF
0.001uFC324
USBH_REF_CLK
TCXO_PM_19.2MHz
RTR_TRK_LO_ADJ
TCXO_RTR_19.2MHZ
Near TCXO
TCXO
071CFu01
4.7u
L39
L40
4.7u
4.7u
L14
4.7uC105
161CFu01
VREG_MSMC2_1.2V
VREG_MSMC1_1.2V
Fu100.0113C
123CFu100.0 213CFu100.0
F
u
1
0
0
.
090
3
C
701C
F
u7.
4
Fu7.4401C
4.7u
L41
4.7uC110
C310 0.001uF
0.1UFC60
M4
N4
M9
N10
M6
N6
M8
N8
J1
K1
2G
2
1
D
7D
RKPS_
R
_
D
DV
OXCT_DDV
NALW_
D
DV
VSW_5V
VREG_5V
VSW_MSMC1
VREG_MSMC1
VSW_MSMC2
VREG_MSMC2
VSW_MSME
VREG_MSME
VSW_PA
VREG_PA
VREG_MSME_1.8V
VREG_SMPS_2.1V
VSNS_MSMC2_1.2V
VSNS_MSMC1_1.2V
VSNS_MSME_1.8V
Place in PM7540 room at shield edge
these CAPs close to inductors
TP1
TP2
TP3