LG GT540 - Page 111

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LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. Trouble Shooting
TP8
TP404
4.7uC421
2.2u
C400
VREG_CAM_AF_2.8V
51K
R421
22pC405
22pC407
R409
200K
D401
VREG_MSMP_2.6V
TP402
TP403
0R410
K
051
1
14R
4.7
R412
4.7u
L400
L401
4.7u
4.7u
L402
K0
03
31
4
R
VREG_MSMP_2.6V
VREG_MSME_1.8V
C415
0.1u
VREG_LCD_1.8V
VREG_HS_MIC_1.8V
4.7u
L403
VREG_CAM_AVDD_2.7V
C416 0.1u
C417 2.2u
C418
10u
0.1uC419
C420
1n
+VPWR
CM315_12_5PF
32.768KHz
X400
21
VREG_MSME_1.8V
4.7uC456
C422
2.2u
VREG_RFRX1_2.7V
U403
9J 8J 7J 6
J
5J 9H 8H 7H 6H 5H 9G 8G 7G 6G 5
G
9F 8F 7F 6F 5
F
9E 8E 7E 6E 5E
H1
E10F1
F10E1
C12N2
B1
M12B2
K7
A5
N13A4
M13B5
B4
G10A7
D9A6
H12B7
B6
C13
A13D10
A12K10
H10
G12J10
G1
M1K4
D13J4
E12H4
N11M2
A3L2
A10H2
A8
H13K2
G13J2
A11G4
K13F4
E13D5
B13B3
A9M5
N12N3
J13N1
A2M3
K6
M4K5
N4K9
M9K8
N10M11
M6L12
N6A1
M8D4
N8B12
J1D8
K1N5
M7
2G
21D
7D 8B
01M
6D 9
B
2
1J
31F 21F
2
1K 7N
9N
01B 3
1L
11B
2F
4E 2C
1C 1D 1L 2D 2E
GHCV
N
_LTC_GHC
S
UBV
_BSU
N
_
L
T
C
_BS
U
P_SNS
I
M_SNSI
N_TE
F
_
TAB
TABV
N
IO
CV
PUKCAB_V A
NA
_
D
DV
E_1C_DDV AP_
2
C_DDV
2P
G
_
D
DV
6P
G
_
D
DV
2EMS
M
_DDV
PMSM
_
D
DV
1
FR_
D
DV
2
FR_
D
DV
MIUR_
D
DV
RKPS_L_DDV RKPS
_R
_
D
DV
OXCT_DDV
NAL
W
_DDV
MPP_1
MPP_2 VSW_5V
MPP_3 VREG_5V
MPP_4 VSW_MSMC1
MPP_5 VREG_MSMC1
MPP_6 VSW_MSMC2
MPP_7 VREG_MSMC2
MPP_8 VSW_MSME
MPP_9 VREG_MSME
MPP_10 VSW_PA
MPP_11 VREG_PA
MPP_12
MPP_13 VREG_GP1
MPP_14 VREG_GP2
MPP_15 VREG_GP3
MPP_16 VREG_GP4
MPP_17 VREF_GP5
MPP_18 VREG_GP6
MPP_19 VREG_MMC
MPP_20 VREG_MSMA
MPP_21 VREG_MSME2
MPP_22 VREG_MSMP
VREG_RFRX1
USB_ID VREG_RFRX2
USB_D_P VREG_RFTX
USB_D_M VREG_RUIM1
USB_OE_N VREG_SYNT
USB_DAT VREG_TCXO
USB_SE0 VREG_USB
VREG_WLAN
SBST MIC_BIAS
SBCK
SBDT_SSBI REF_ISET
MSM_INT_N REG_GND
REF_BYP
SPKR_IN_L_M
SPKR_IN_L_P TCXO_IN
SPKR_OUT_L_M TCXO_EN
SPKR_OUT_L_P TCXO_OUT
SPKR_IN_R_P
SPKR_IN_R_M XTAL_IN
SPKR_OUT_R_P XTAL_OUT
SPKR_OUT_R_M
SLEEP_CLK
VIDEO_IN AMUX_OUT
VIDEO_OUT
VIB_DRV_N KPD_PWR_N
KPD_DRV_N PON_RESET_N
LCD_DRV_N PS_HOLD
FLSH_DRV_N
1DNG 2DNG 3DNG 4
D
N
G
5
D
N
G
6DNG 7
DNG
8
D
N
G
9
D
NG
01DNG 11DNG 2
1
D
N
G
31
D
N
G
41
D
NG
51DNG 6
1
D
N
G
7
1
D
NG
81DNG 91DNG 02D
N
G
12
D
N
G
22
D
NG
32DNG 42DNG 52
D
NG
R414 121K
C423
33p
C424 0.1u
C425
2.2u
VREG_TCXO_2.85V
R415 51
1n
C426
2.2u
C427
2.2u
C428
1nC429
K0
1
61
4R
C430
2.2u
VBAT
VREG_MSMC1_1.25V
VREG_MMC_3.0V
VCHG_VBUS
C431
33p
1n
C432
C433 1n
C434 0.1u
VREG_RUIM_3.0V
C435
2.2u
4.7u
C436
VREG_CAM_IOVDD_2.6V
2.2u
C437
1K
R417
C438 0.1u
VREG_MSMA_2.6V
10u
C439
C440
2.2u
VREG_MSMC2_1.25V
VRF_SMPS_2.1V
0.1uC441
0.1uC442
C443
1n
C444
1u1u
C445
VREG_MSMP_2.6V
4.7u
C446
0.1uC447
C448
4.7u
C449
2.2u 2.2u
C450
VREG_COMPASS_2.6V
C452
4.7u
C453 0.1u
C454 0.1u
C455 0.1u
C457 0.1u
VREG_AUX2_2.9V
VREG_HPVDD_1.8V
VREG_CAM_DVDD_1.2V
VREG_LCD_2.8V
2.2u
C458
2.2u
C460
PS_HOLD
nPON_RST
VBAT_SENSE
PMIC_SSBI
AMUX_OUT
GSM_PA_DAC_REF
MSM_USIM_RST
MSM_USIM_DATA
MSM_USIM_CLK
PM_INT_N
SLEEP_CLK
TCXO_EN
PMIC_TCXO
REMOTE_PWR_ON
TCXO_PM_19.2MHZ
JTAG_PS_HOLD
VSNS_MSMC2_1.25V
VSNS_MSMC1_1.25V
VSNS_MSME_1.8V
KPD_DRV_N
USB_3.3V_EN
SIM_RST
P_
SNSI
VBAT_TEMP
N_TEF_TTAB
NI
O
CV
SIM_CLK
N_LTC_
GHC
PCB_REVISIONPCB_REVISION
SIM_IO
KPD_PWR_N
R
WPV+
1.04V
1.30V
M_SNSI
430K
R411
300K
0.62V
1.73V
100K
0.81V
680KRev.1.2
E&J
Rev.1.0
0.16V
HKAIN0 : PCB Revision Check ADC
150K
150K
Rev.1.1
B&G
C&H
D&I
1.93V
REV
150K
150K
47K
68K
10K
2.13V
R413
150K
A&F
150K
ADC
150K
150K
150K
Place close to PM7540 pins
Route together
0.5mm
Rev 1.0
These CAPs close to inductors
0.5mm
0.5mm
Place in PM7540 room at shield edge
Local Ground Plan
0.3mm
reh
t
egot etuoR
1%
Place crystal and load caps close to PM7540
TP2
TP3
TP4
TP6
TP5
TP7
TP9