LG U310 Service Manual page 145

7. CIRCUIT DIAGRAM
+5V_PWR
R404
C421 CHG_CNT_N
1u 10K
ICHARGEOUT
1005
BATT_FET_N
VREG_5V
RESET_IN_N
C450
4.7u
L410 4.7uH USB_OE_N
+VPWR
smd_2520h1_6_r
USB_CNT_N
USB_VBUS
USB_DAT
R407
C424
47K 4.7u
USB_SE0
VBAT_TEMP
KYPD_BACKLIGHT
PM_ON_SW_N
MOTOR_PWR-
USIM_P_DATA
R400
0
+VPWR
C402
33u
C418
0.1u
1
ADC_BYP REF_BYP
2
VCHG REF_GND
3
ICHARGE ISNS_P REF_ISET
4
CHG_CTL_N
5
ISNS_M MSM_INT_N
6
VBATT VBAT TCXO_IN
7
BAT_FET_N PS_HOLD
8
FLSH_DRV_N VREG_MSMA
9 U400
PON_RESET_N TCXO_EN
10
VREG_USB VDD_ANA
11
C423
USB_ID PM6650-2M TCXO_OUT
1u 12
VREG_5V VDD_MSM
13
USB_OE_N
14
VSW_5V VREG_MSMP
15
USB_CTL_N
16
USB_VBUS VBACKUP
17
USB_DAT
18
USB_D+ USB_D_P XTAL_OUT
19
USB_SE0 SLEEP_CLK
20
USB_D- USB_D_M XTAL_IN
21
GP1_DRV_N(MPP7) RUIM_RST(MPP6)
R408
+VPWR
10K
+VPWR
C428
2.2u
1608
smd_2520h1_6_r smd_2520h1_6_r
L401 L402
4.7uH 4.7uH
C433
C432 C431
C430
R409 1000p
1000p 4.7u
4.7u
0 1608
1608
C419
0.1u V_BACK_UP
63
JTAG_PS_HOLD
C420
62
1u R402
61 R403
470K
60 121K 1%
VCOIN
59
D400
PM_INT_N
58 RB521S-30
TCXO_PM
57
PS_HOLD
56
VREG_MSMA_2.6V
55
R405 0
TCXO_EN
C422
54
+VPWR 4.7u
53 R406 51
BUFF_TCXO smd_1608h_9_r
52
+VPWR
51
PM_SBST
SBST
50
VREG_MSMP_2.7V
49
SBCK PM_SBCK C425
48
4.7u
47 smd_1608h_9_r
SBDT PM_SBDT
46
TP401
45
X400
SLEEP_CLK
44
43 32.768KHz
FC-135
USIM_P_RST_N
C426 C427
22p 22p
+VPWR
USIM_RST_N
USIM_P_CLK
USIM_CLK
USIM_DATA
VREG_USIM_2.85V
VREG_MMC_3.0V
C429
2.2u
1608
LG Electronics Inc.
- 146 -
USB_VBUS
6 5 4
C1 C2 3 B
1 2
USB_CNT_N
+5V_PWR
6 5 4
C1 C2 3 B
1 2
CHG_CNT_N
ICHARGE
ICHARGEOUT
+VPWR
VBATT
BATT_FET_N
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PMIC
U310_REV_1.1