LG -V909DW Service Manual page 167

PM8028
X500
C522 DNI
19.2MHz
DSX321G-19.2M
EXXY0025101
C523 DNI
32.768KHz
FC-135
EXXY0018701
JTAG_PS_HOLD
D500
PS_HOLD
R526
200K
ZD500
Backup Battery
R529
R537
10K
BAT500
D501
311HR-VG1
SMZY0023501
LGE Internal Use Only
VBAT VBAT
VBAT
VDD_MDM_MSME
C501 2.2u
C502 0.1u
C503 0.1u
C504 0.1u
C505 0.1u
C506 0.1u
C507 10u
C508 10u
C509 10u
C511 10u
C513 1u
VBAT
L1
OVP_CLAMP
L2
OVP_SNS
N2
OVP_CTL
C516 10u
M1
C517 10u VCHG_0
M2
VCHG_1
C518 10u
C519 10u P1
VPH_PWR_0
P2
VPH_PWR_1
R4
VBACK_UP
BAT_FET_N
T1
VREF_THERM
R3
C521 VBAT
F2
VCOIN
DNI
E6
XOADC_REF
+2.2V_XOADC_REF
A2
XTAL_19M_IN MPP_08/VREF_OUT/CHG2_DET/BATT_ID
A1
XTAL_19M_OUT
B3
VDD_MDM_MSME R505 DNI XO_OUT_A0_EN
C524 100p B4
MDM_RF_TCXO
XO_OUT_A0
B2
R536 DNI
XO_OUT_A1_EN
C2
XO_OUT_A1
TP510
D4
TP501 XO_OUT_D0
TP509
B6
XO_OUT_D1_EN/PA_ON
TCXO_EN
F4
MDM_TCXO XO_OUT_D1
C527 A6
XTAL_32K_IN
DNI A7 U500
XTAL_32K_OUT
X501
G8
MDM_SLEEP_CLK SLEEP_CLK0 PM8028
C528
DNI R1
LED_ATC
EUSY0342202
F8
VIB_DRV_N
R5
SPKR_IN_LM
R6
SPKR_IN_LP
R8
SPKR_IN_RM
R7
SPKR_IN_RP
T3
SPKR_OUT_LM
T4
SPKR_OUT_LP
T10
SPKR_OUT_RM
T9
SPKR_OUT_RP
D7
HSED_BIAS0
E7
HSED_BIAS1
D6
VDD_MDM_MSME
HSED_BIAS2
G4
NFC_EXT_EN
D5
R521 HARD_MDM_RESET RESIN_N
N1
MDM_PWRON_N KPD_PWR_N
DNI
E5
OPT_1
R2
PS_HOLD
E4
PON_RESET/ PON_RESET_N
J8
C537 PMIC_SSBI SSBI
L8
DNI PM_INT_N
PMIC_MDM_IRQ/
TP505
E8
GSM_L_PAM_ON PA_ON1
B9
GSM_H_PAM_ON PA_ON2
A10
PA_ON3
AWS_ON
A11
PA_ON4
W900_ON
D8
PA_ON5
A9
VOUT_PA_CTL
C551
2.2u
MODEM POWER ON
DNI VBACK_UP
MDM_PWRON_N
Q500
KTK5132E
EQFN0005601
VDD_MDM_MSME
C500
0.1u
VBAT
H8
GPIO_01/SLEEP_CLK1
H4
GPIO_02/MP3_CLK
K4
GPIO_03/EXT_SMPS_EN
J4
GPIO_04/PWM_OUT USIM_DETECT
0 R544
L4
USIM_MDM_DATA
MPP_01/UIM_M_DATA
M4
MPP_02/UIM_DATA USIM_DATA
M5
MPP_03/UIM_M_CLK USIM_MDM_CLK
N4
USIM_CLK USIM LEVEL TRASLATOR
MPP_04/UIM_CLK
M6
USIM_MDM_RESET/
MPP_05/UIM_M_RST
N5
MPP_06/UIM_RST USIM_RESET/
R9
MPP_07/BATT_THERM
PCB_REV_ADC
N7
TP511
D10
MPP_09/XO_THERM
M8
MPP_10/PA_THERM PCB_THM_ADC
N6
MPP_11/CBLPWR0_N
REMOTE_PWR_ON
M7
MPP_12/CBLPWR1_N
L500 4.7u
K11
VSW_S1
K10 S1&S2 sense point near MDM node
VREG_S1
F11 L501 4.7u
VSW_S2
F10
VREG_S2
N11 L502 4.7u
VSW_S3
L10 S3 sense point near branch of MDM and DDR
VREG_S3
C11 L503 4.7u
VSW_S4
E10
VREG_S4
G2
VREG_L1
E2
VREG_L2
A4
VREG_L3
R10
VREG_L4
A3
VREG_L5
B10
VREG_L6
B5
VREG_L7
E1
VREG_L8
J1
VREG_L9
D2
VREG_L10
H1
VREG_L11
B8
VREG_L12
F1
VREG_L13
J2
VREG_L14
K2
VREG_L15
C1 +2.6V,50mA
VREG_L16
B1
+2.8V,50mA
VREG_L17
H10
VREG_L18
H11
VREG_L19
R11
NCP_CTC1
P10
NCP_CTC2
N8
NCP_FB
M10
VREG_NCP
H2
REF_BYP
C538 C539 C540 C541 C542 C543 C544 C545 C546 C547 C548 C549
4.7u 4.7u 4.7u 4.7u 4.7u 4.7u 4.7u 2.2u 2.2u 2.2u 4.7u 4.7u
C550
0.1u
MODEM RESET (For LOCK-UP)
HARD_MDM_RESET
D
D Q501
KTK5132E G
EQFN0005601
G
MDM_PWRON_1.8V
S
S
- 167 -
As close as possible to 19.2MHz crystal.
R504
100K
PT500 C525
C526
100K 0.1u
1n
VDD_MDM_MSMC
+1.3V_MDM_RF1
VDD_MDM_MSME
+2.2V_MDM_RF2
+2.05V_MDM_A2 C553
47u
+1.2V_MDM_P4
+2.85V_MDM_SDCC1
+1.1V_MDM_MPLL
+3.0V_USIM
+2.85V_VDD_RF_SW
+3.0V_MDM_USB
+2.2V_XOADC_REF
+1.8V_MDM_P5
H/W Rev ADC
+2.2V_XOADC_REF
Rev.
A
R542 B
100K C
D
PCB_REV_ADC
E
100K F
R543 1.0
1.1
Temp Check
R530
+2.2V_XOADC_REF
51K
MDM_RESET_1.8V
PT501 C552
100K 33n
Copyright © 2011 LG Electronics. Inc. All right reserved.
7. CIRCUIT DIAGRAM
+2.2V_XOADC_REF
R542 R543 ADC_Volt
100K - -
100K 12K 0.24V
100K 19.1K 0.35V
100K 27K 0.46V
100K 36K 0.58V
100K 47K 0.70V
100K 75K 0.94V
100K 100K 1.1V
PCB_THM_ADC
Only for training and service purposes