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VREG_MODEM_L3_1P8
MODEM_XO_THERM
C21038
1n
TP1
GNSS_BB_QM
96
GP_CLK
114
GP_SYNC
88
GP_DATA2
121
GP_DATA1
105
GP_DATA0
120
XO_IN
79
VTUNE_PRX
60
R2003
RBIAS
93
ADC_IN
80
SSBI_PRX_DRX
89
SSBI_TX_GNSS
45
RX_ON
100
RF_ON
86
JAM_DET
135
LGE Internal Use Only
PM_GND_XOADC
X21000
4
Thermistor
1
XTAL1
XO with thermistor.
WTR0_GPDATA2
WTR0_GPDATA1
WTR0_GPDATA0
4.75K
WTR0_SSBI2
WTR0_SSBI1
WTR0_RX_ON
WTR0_RF_ON
Schematic of the Crystal Part (19.2MHz)
+VPWR
19.2MHz
3
XTAL2
2
GND/Therm
WTR0_XO_A0
MDM_CXO
MDM_CXO_EN
MODEM_SLEEP_CLK
VDDPX_BIAS
VREF_DAC_BIAS
C2021
TP2
100p
- 48 -
Copyright © 2013 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
XTAL_19M_OUT
1
XTAL_19M_IN
2
19
XO_OUT_A0
37
XO_OUT_A1
25
XO_OUT_D0
85
XO_OUT_A0_EN/MPP_01
49
XO_OUT_A1_EN/GPIO_06
9
XO_OUT_D0_EN
TP21003
3
XTAL_32K_IN
15
XTAL_32K_OUT
26
SLEEP_CLK
50
TP21002
GPIO_03/SLEEP_CLK1/MP3_CLK
66
MPP_03/VREF_OUT
80
MPP_06/DAC_VREF
R2002
WTR0_XO_A0
0
C2022
DNI
Only for training and service purposes
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Table of Contents
Troubleshooting
