LG L704I Service Manual page 155

7. CIRCUIT DIAGRAM
1 2 3
A
B
C
+5V_PWR
6 5 4 Q1
QST4
EQBP0009901
1 2 3
CHG_CNT_N
ICHARGE
D
(1%)
ICHARGEOUT
+VPWR
Q8
C1661
33p C1618
FDJ129P
33u
EQFP0005101
2012
VBATT
E BATT_FET_N
USB_VBUS USB_VBUS_IN
PS_HOLD
EQBA0000602
KRX102E
Q7
F
C
D
E
F
1 2 3
LG(42)-A-5505-10:01
LGE Internal Use Only
4 5 6 7
PMIC_VPWR_BYPASS
VDD_MSM : 0.1uF
VDD_MSMC : 4.7uF
VDD_ANA : 0.1uF
VDD_MSME : 4.7uF
VDD_RUIM : 0.1uF
VDD_PA : 4.7uF
VDD_RF : 0.1uF
VDD_WLAN : 0.1uF
VDD_MAIN : 0.1uF
VDD_SPKR : 0.1uF
+VPWR
0603 1005 1005 1005 1005 1608 2012
C569 C566 C563 C700 C699 C698 C712
0.1u 0.1u 0.1u 2.2u 2.2u 4.7u 33u
1
ADC_BYP
2
+5V_PWR VCHG
3
ICHARGE ISNS_P
4
CHG_CNT_N CHG_CTL_N
5
C545 ICHARGEOUT ISNS_M
6
0.1u VBATT VBAT
7
BATT_FET_N BAT_FET_N
8
FLSH_DRV_N
9
RESET_IN_N PON_RESET_N
10
VREG_USB U513
11
USB_ID PM6650-2M
12
VREG_5V EUSY0306302
13
USB_OE_N USB_OE_N
14
VSW_5V
15
USB_CTL_N
16
USB_VBUS USB_VBUS
17
USB_DAT USB_DAT
18
USB_D+ USB_D_P
19
USB_SE0 USB_SE0
20
USB_D- USB_D_M
21
GP1_DRV_N(MPP7)
2.2K R1090
4.7u C702
SUB_LED_DRV_N
KEY_LED_DRV_N
KEY_ON_SW_N
2520
2520 2016
L60
4.7uH 4.7uH
4.7uH
L1 L2
1005
R1395
VREG_RF_SMPS
0
C1705 C1625
Switcher Circuit for RF
22u 0.1u
2012 1608
<CAM LDO >
U568 BH28PB1WHFV
1 5
CAM_2M_2.8V_EN STBY SEL
2 6
GND BGND R1347
3 4
+VPWR VIN VOUT VREG_2M_CAM_2.8V
0
EUSY0290701
C1532
1u
U579 BH28PB1WHFV
1 5
CAM_DVDD_2.7V_EN STBY SEL
2 6
GND BGND
3 4
+VPWR VIN VOUT VREG_CAM_2.7V
C1707
1u
U580 BH18PB1WHFV
1 5
CAM_CVDD_1.8V_EN STBY SEL
2 6
GND BGND R1449
3 4
+VPWR VIN VOUT VREG_CAM_1.8V
0
EUSY0297101
C1709
1u
4 5 6 7
8 9 10 11
AUTO_BOOT_N
63 0.1u C562
REF_BYP
62 0603
REF_GND
1u C665 R1139
61 121K R1138
REF_ISET
60
VCOIN V_BACK_UP NA
59 TP317
MSM_INT_N PM_INT_N JTAG_PS_HOLD
RB521S-30
58
TCXO_IN TCXO_PM
EDSY0011901
57
PS_HOLD PS_HOLD
56 D14
VREG_MSMA VREG_MSMA_2.6V
55
TCXO_EN TCXO_EN
54 0603
VDD_ANA +VPWR
47 R1125
53
TCXO_OUT BUFF_TCXO_MSM
52
VDD_MSM +VPWR 0603
51 47K R1340
SBST
50
VREG_MSMP VREG_MSMP_2.7V
49 47K R1341
SBCK
48 0603
VBACKUP C701
47 FC-255
SBDT SSBDT_PM 4.7u
46
EXXY0016601
XTAL_OUT
45 32.768KHz
SLEEP_CLK SLEEP_CLK
44 X2
XTAL_IN
43
RUIM_RST(MPP6) USIM_P_RST_N
C713 C714
Artwork --> Place crystal and load caps close to PM6650 !!
12p 12p
+VPWR
MSM_USIM_RST_N
VREG_SD_2.85V
USIM_P_CLK
MSM_USIM_CLK
MSM_USIM_DATA
VREG_USIM_2.85V
USIM_P_DATA V_BACK_UP
1005 1005
C709 C704
2.2u 2.2u
Shield Frame Hall
TP365
8 9
- 156 -
12 13 14 15
< I/O Connector >
PAD for Desktop Charger
D13
+5V GND
EDTY0007401
1 6
USB_D+ USB_D-
SD12T1G
2 5
ZD3
RA1R011H11
3 4 ENRY0005101|conn_ra1r011h11_update
GND
USB_D+
1
USB_D-
PLR0504F FB1
USB_VBUS_IN 2
EDTY0008607
BLM18PG121SN1J 3
FL1 NFM21PC105B1A3 4
1 2
5
+5V_PWR IN OUT
6
3 4
7
G1 G2
0603
8
R1434
AUTO_BOOT_N 9
1K 10
0603
G1_2
24 R1120
A
ACT_N
INNER
RF_OUT
L7 1.2nH G1_1
56p C715
GND
CN804
C703
OUT1
1u
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
16
A
B
C
D
E
OUT2
F
C
D
E