LG U990 Service Manual page 174

7. CIRCUIT DIAGRAM
1 1 2 2 3 3
PMIC VPWR BYPASS
+VPWR
C509 C500
A A
33u
4.7u
VDD_MSMC : 4.7uF VDD_MSM : 0.1uF
VDD_MSME : 4.7uF VDD_ANA : 0.1uF
VDD_PA : 4.7uF VDD_RUIM : 0.1uF
VSW_5V : 4.7uF
VDD_WLAN : 0.1uF
VDD_MAIN : 0.1uF
GSM_PA_PWR_CTL_REF
AMUX_OUT
+5V_PWR VREG_USB_3.3V
B B
VBATT ICHARGE
CHG_CNT_N
ICHARGEOUT
VREG_5V
BATT_FET_N
FLSH_DRV_N
RESET_IN_N
C529 1u
C528
4.7u
+VPWR
L500 4.7uH
USB_OE_N
smd_2520h1_6_r
USB_CNT_N
C C
USB_VBUS
USB_DAT
MSM_USB_D+
USB_SE0
MSM_USB_D-
+VPWR
R518
10K
KYPD_LED_EN
PM_ON_SW_N
USIM_P_DATA
VBATT
D D
VREG_RF_SMPS
VREG_MSMC_1.2V
E E
Power Line --> Route carefully!!!!!
Draw the Artwork_line thickly !!!!!
--->> USB_VBUS , FLASH_DRV_N , KPD_DRV_N , KEY_ON_SW_N , MOT_PWR-
F F
L504 VREG_MSMP_2.7V
2.2uH
CN500
21
19
1 FB504
2
3
4
5
6
7
8
9
G G 10
11
12
13
14
15
16
17
18
20
22
C588
10p
H H
MMI 18Pin CONNECTOR
1 1 2 2 3 3
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4 4 5 5
+VPWR
VBATT
+VPWR
+5V_PWR
USB_VBUS
ICHARGE
C512
1u
ICHARGEOUT
CHARGING
+VPWR
RMT_PWR_ON_N
R505
470K
1 63 C522 0.1u
ADC_BYP REF_BYP
2 62
VCHG REF_GND
3 61 R506 121K C523 1u
ISNS_P REF_ISET
4 60 (1%)
CHG_CTL_N VCOIN V_BACK_UP
5 59 TP500 VREG_MSMA_2.6V
ISNS_M MSM_INT_N PM_INT_N
6 58
VBAT TCXO_IN TCXO_PM
7 57
BAT_FET_N PS_HOLD R508
8 56
FLSH_DRV_N VREG_MSMA
9 U501 55
PON_RESET_N TCXO_EN TCXO_EN 0
10 54
VREG_USB VDD_ANA
11 53 R509 51
USB_ID TCXO_OUT BUFF_TCXO
PM6650-2M
12 52
VREG_5V VDD_MSM
13 51
USB_OE_N SBST
14 50
VSW_5V VREG_MSMP
15 PMIC 49
USB_CTL_N SBCK
16 48
USB_VBUS VBACKUP
17 47
USB_DAT SBDT SSBDT_PM
18 46 R515
USB_D_P XTAL_OUT
19 45
USB_SE0 SLEEP_CLK SLEEP_CLK 51K
20 44
USB_D_M XTAL_IN
21 43
GP1_DRV_N(MPP7) RUIM_RST(MPP6) USIM_P_RST_N
C545 C546
22p 22p
+VPWR
Rev. 1.0
VREG_USIM_3.0V VREG_MMC_3.0V
USIM_RST_N
USIM_P_CLK
USIM_CLK
USIM_DATA
L501
4.7uH VREG_MSME_1.8V C552
1608
2.2u
ind_2x1_6h1_r L502 4.7uH
R520 0
C554 C555 C556 C557
22u 10u 0.1u 1000p
C559 C558
1608
0.1u 4.7u
L503 4.7uH
C560
C561
1608 MIDI_3.3V
4.7u
0.1u
MMP_VDD_USB_3.3V
VREG_5V
MIDI_3.3V
U503
1 6
VDD CE_OR_NC WM_EN
2 5
GND1 GND2
3 4
VOUT NC
R1180D331B
C571 C572
1u 1u
FM_ANT
EAR_MIC_P
TV_OUT
MIDI_EAR_L
MIDI_EAR_R
RMT_INT-USB_D+ SRC DRAIN
5 4
RMT_ADC-USB_D-
EAR_SENSE_N GATE CNTRL
6 3
VBATT
OUT GND
7 2
RMT_PWR_ON_N
VCC IN
8 1
DRAIN_THERMAL
9
USB_VBUS NUS3065MUTAG U505
UART_TXD
UART_RXD
OVP
4 4
6 6 7 7 8 8
U500 NUS3116MTR2G
10 9
P_DRAIN P_COLLECTOR
1 8
EMITTER1 BASE1 CHG_CNT_N
2 7
EMITTER2 BASE2 USB_CNT_N
3 6
COLLECTOR GATE BATT_FET_N
4 5
SOURCE DRAIN VBATT
Rev. 1.1
JTAG_PS_HOLD
D500
PS_HOLD
RB521S-30
VREG_MSMP_2.7V
C532 1u R510
SPK_R
R512 51K
1K
C535
R513 0
FM_AUDIO_R
C536
C537 C538
FM_AUDIO_L
1608 1608
4.7u 4.7u
C541 1u
R516
SPK_L
1K
C548 1u
HP_L
C549 1u
HP_R
C553
1608
2.2u
HP_AMP_EN
HP_EAR_L
C565 C566
4.7u 1u
FB502 600
R524
1 12
PVDD OUTL MIDI_EAR_L
68
2 11
C1P U504 SVSS
FB503 600
MAX9722BETE
3 10 R525
C570 PGND OUTR MIDI_EAR_R
1u PQ 68
4 9
C1N SVDD2
PQ
C577
1u
HP_EAR_R
HEADPHONE AMP
+VPWR
C581
0.01u
FSUSB30UMX U507
10 1
+5V_PWR EAR_SENSE_N SEL HSD1+
9 2
VCC HSD2+
8 3
_OE D+
7 4
RMT_ADC HSD1- GND
6 5
USB_D- HSD2- D-
USB/REMOCON_SEL
7 7 8 8
- 175 -
9 9 10 10 11 11
VREG_5V
R533
VREG_WM_2.7V
C514 C513
10u
0.1u 0
C516 C517
4.7u 0.1u
MIDI_3.3V
C518 C519
4.7u 0.1u
VREG_MSME_1.8V
C520 C521
4.7u 0.1u
U502 WM8983
13 12
DCVDD DGND
14
DBVDD
26 28
AVDD2 AGND1
31
AVDD1
24
AGND2
7 C524 C525
MMP_A_LRCLK LRC 0.1u 10u
8
MMP_A_BCLK BCLK
9
C530 MMP_ADI_ADCDAT ADCDAT C531
10 27
12n MMP_ADO_DACDAT DACDAT VMID NA
11
MMP_A_MCLK MCLK
32
C533 MICBIAS MIC_PWR
R511
4
RIP
5 29
4.7n 18K HP_EAR_R
RIN ROUT1
30
1u LOUT1 HP_EAR_L
6
R2_GPIO3
FB500
1u 3 23
L2_GPIO2 ROUT2 SPK_OUT+
1 25
C542 MID_MICP LIP LOUT2 SPK_OUT-
R517
2
LIN FB501
4.7n 18K C543 C544
19 22
C547 AUXL OUT3 MIC2P NA NA
21
12n OUT4
20
AUXR
18
MODE
15
CSB_GPIO1
16
CODEC_I2C_SCL SCLK
17 33
CODEC_I2C_SDA SDIN PGND
C550 C551
NA NA
AUDIO DAC/ADC, AMP etc. (WM8983)
MICBIAS
C564
47p
C563
SPM0204HE5-PB-3
10u
P C567 22n MIC1N
4
G2 C569
3
G1 NA
2 C568 22n
O MIC1P
1
MIC500
C575 C576
MIC 33p 10p
MIC_PWR
C579 C580
10u
47p
U506 NC7SB3157L6X
1 6
CAM_MIC+ B1 S EAR_SENSE_N
2 5
GND
VCC
3 4
EAR_MIC_P B0 MID_MICP
A
RMT_INT C584
0.1u
USB_D+
RMT_INT-USB_D+
RMT_ADC-USB_D- CAM/HP MIC SEL
9 9 10 10 11 11
LGE Internal Use Only
12 12
A A
E E
F F
VREG_MSMP_2.7V G G
H H
12 12