LG CU405 Service Manual page 135

7. CIRCUIT DIAGRAM
PMIC VPWR BYPASS
+VPWR
+5V_PWR
ICHARGE
CHG_CNT_N
ICHARGEOUT
VBATT
BATT_FET_N
MSM_RESIN_N
C426 1u
USB_OE_N
USB_VBUS
USB_DAT
USB_D+
USB_SE0
USB_D-
KYBD_BACKLIGHT
PM_ON_SW_N
MOTOR_PWR-
USIM_P_DATA
Power Line --> Route carefully!!!!!
Draw the Artwork_line thickly !!!!!
--->> USB_VBUS , FLASH_DRV_N , KPD_DRV_N , KEY_ON_SW_N , MOT_PWR-
+VPWR
PA_FET_N
LGE Internal Use Only
0.1u
1 63
ADC_BYP REF_BYP
2 62
VCHG REF_GND
3 61 R402
ISNS_P REF_ISET
4 60
CHG_CTL_N VCOIN
5 59
ISNS_M MSM_INT_N
6 58
VBAT TCXO_IN
7 57
BAT_FET_N PS_HOLD
8 56
FLSH_DRV_N VREG_MSMA
9 U401 55
PON_RESET_N TCXO_EN
10 54
VREG_USB VDD_ANA
11 53 51 R405
USB_ID PM6650-2M TCXO_OUT
12 52
VREG_5V VDD_MSM
51K R406
13 51
USB_OE_N SBST
14 50
VSW_5V VREG_MSMP
15 49 51K R407
USB_CTL_N SBCK
16 48
USB_VBUS VBACKUP
17 47
USB_DAT SBDT
18 46
USB_D_P XTAL_OUT
19 45 TP400
USB_SE0 SLEEP_CLK
20 44
USB_D_M XTAL_IN
21 43
GP1_DRV_N(MPP7) RUIM_RST(MPP6)
Q402
SI3493DV-E3
VREG_W_PA
C439
10u
R409 100K
R410 1K
+VPWR
WLED_PWR
LCD_BL_CTRL
C421
121K BAT400
1u C422 R403 200K
PM_INT_N JTAG_PS_HOLD
TCXO_PM
D400 RB520S-30
PS_HOLD
VREG_MSMA_2.6V
TCXO_EN
+VPWR
TCXO_MSM
+VPWR
VREG_MSMP_2.6V
VREG_MSMP_2.6V
X400
SSBDT_PM
3
4
SLEEP_CLK
1 2
USIM_P_RST_N
MC-146_12_5PF
32.768KHz
+VPWR
USIM_RST_N
USIM_P_CLK
USIM_CLK
USIM_DATA
VREG_USIM_2.85V
VREG_CAM_2.8V
- 136 -
LCD_BACK_LIGHT_CHARGE_PUMP
U400
8 3 C400 1u
IN C1+
5 4
OUTCP C1-
C401 1u
6
C2+
2
EN_SET
7
C2-
10
ISINK1 WLED_1
11
ISINK2 WLED_2
9 12
GND ISINK3 WLED_3
13 1
PGND ISINK4 WLED_4
AAT3152IWP
Differential lines, route as equal length as possible !! --> ICHARGE , ICHARGEOUT
+5V_PWR
6 5 4
C1 C2 3 B
1 2
CHG_CNT_N
ICHARGE
ICHARGEOUT
+VPWR
SI3493DV-E3
Q401
VBATT
BATT_FET_N
CU405
LGMC
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Only for training and service purposes