LG HB620 Service Manual page 155

7. CIRCUIT DIAGRAM
1 1 2 2 3 3
+VPWR
PMIC VPWR BYPASS
A A
B B
+5V_PWR
VBATT
ICHARGEOUT
BATT_FET_N
C421 1u
C C
USB_VBUS
USB_DAT
C424 R409
47K USB_SE0
4.7u
KYPD_LED_EN
D D PM_ON_SW_N
MOTOR_PWR-
USIM_P_DATA
VREG_RF_SMPS
Power Line --> Route carefully!!!!!
Draw the Artwork_line thickly !!!!!
E E
--->> USB_VBUS , FLASH_DRV_N , KPD_DRV_N , KEY_ON_SW_N , MOT_PWR-
F F
PM_ON_SW_N
VA401
EVLC18S02015
G G
ON_SW
H H
1 1 2 2 3 3
LGE Internal Use Only
4 4 5 5 6 6
+VPWR
GSM_PA_PWR_CTL_REF REMOTE_PWR_ON
AMUX_OUT
1 63 C415 0.1u
ADC_BYP REF_BYP
2 62
VCHG REF_GND
R405 121K
3 61 C417
ICHARGE ISNS_P REF_ISET
(1%)
4 60 R416
CHG_CTL_N CHG_CTL_N VCOIN
5 59 TP401
ISNS_M MSM_INT_N PM_INT_N
6 58
VBAT TCXO_IN TCXO_PM
7 57
BAT_FET_N PS_HOLD
8 56
FLSH_DRV_N VREG_MSMA
9 U401 55
RESET_IN_N PON_RESET_N TCXO_EN TCXO_EN
10 54
VREG_USB VDD_ANA
11 53 R407 51
USB_ID PM6650-3P TCXO_OUT BUFF_TCXO
12 52
VREG_5V VDD_MSM
13 51
USB_OE_N USB_OE_N SBST
14 50
VSW_5V VREG_MSMP
PMIC
15 49
USB_CTL_N USB_CTL_N SBCK
16 48
USB_VBUS VBACKUP
17 47
USB_DAT SBDT PM_SBDT
18 46
USB_D+ USB_D_P XTAL_OUT
19 45 TP402
SLEEP_CLK
USB_SE0 SLEEP_CLK
20 44
USB_D-
USB_D_M XTAL_IN
21 43
USIM_P_RST_N
GP1_DRV_N(MPP7) RUIM_RST(MPP6)
C425
+VPWR
27p
+VPWR
R411
100K
USIM_RST_N
USIM_P_CLK
USIM_CLK
USIM_DATA
VREG_MSME_1.8V
L401 4.7uH
L402 4.7uH
C429 C430 C431
C432
22u 10u 0.1u
1000p
C433
C434
1608
1000p 10u
VREG_MSMC_1.2V
L403 4.7uH
C435
C436
1608
4.7u
1000p
END
4 4 5 5 6 6
7 7 8 8 9 9
VBATT
R402
470K VBAT_SENSE
JTAG_PS_HOLD
D402
PS_HOLD
RB521S-30
1u
10K
V_BACK_UP
VREG_MSMA_2.6V
VREG_MSMP_2.7V
R408 56K
C422 C423
R410 1608 1608
4.7u 4.7u
56K
C426
27p
VREG_USIM_2.85V VREG_MMC_3.0V
C427 C428
1608 1608
2.2u 2.2u
USIM_P_DATA
C437
33p
CN402
CTS
12
RTS
USB_VBUS 11
VBATT DSR
10
USB_D+ UTXD
NC4
9
USB_D- URXD
NC3
+5V_PWR 8
NC2 PWR USIM_P_DATA
TP455 7
VBAT VBAT
TP403 1mm pad 6
PM_ON_SW_N ON_SW ON_SW
5
NC1 VCHAR
TP404 1mm pad 4
UART_TXD TX TX
TP405 1mm pad 3
UART_RXD_IN RX RX
TP456 2
GND GND
1
2.5G 3G
PCB ARRAY TP
OJ403 OJ404
7 7 8 8 9 9
- 156 -
10 10 11 11 12 12
LGE Internal use only
R401
470K
VREG_MSMP_2.7V
C414
0.01u
R403
C416 R404
80.6K
0.1u 680K
R1002 3
VBAT_TEMP
2
1K
1
CN401
ZD1
Battery Charging Circuit
U402
10 9
VBATT P_DRAIN P_COLLECTOR
1 8
+5V_PWR EMITTER1 BASE1 CHG_CTL_N
2 7
USB_VBUS EMITTER2 BASE2 USB_CTL_N
3 6
ICHARGE COLLECTOR GATE BATT_FET_N
4 5
SOURCE DRAIN VBATT
NUS3116MTR2G
ICHARGEOUT
+VPWR
VREG_USIM_2.85V
4.7K R413
J401 HSSC-8P-18
5 1
GND1 VCC
6 2
VPP RST USIM_P_RST_N
7 3
IO CLK USIM_P_CLK
8 4
RSV2 RSV1
9 11
C438 C439
GND2 GND5
10 12
L404
GND3 GND4
33p 0.1u
56nH
USIM
VREG_USIM_2.85V
D403
6 1
USIM_P_CLK
5 2
4 3
USIM_P_RST_N
PLR0504F
10 10 11 11 12 12
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
A A
B B
C C
D D
E E
F F
G G
H H