LG GS290 Service Manual page 32

GS290 Operational Description
GS290 Operational Description
FM_SPK_INN
FM_SPK_INP
USB_OEN
USB_DAT_VP
USB_SE0_VM
TXON_PA
SD_1V8 VAUDB_2V5 VBAT
VBAT
VAUDA_2V5 VFM_2V9
USB_DP
USB_DM
PMRSTN
VCXO_EN
BT_CLK_REQ
C207 C205 C200
1u 1u 1u
C204
0.1u
C234 C239 C209 C227
C222
22u 2.2u 2.2u 0.1u
10u
Figure 3. SM-Power Circuit Diagram of GS290
Figure 3. SM-Power Circuit Diagram of GS290
Micro USB
V_BUS
USW_DM
USW_DP
USW_ID
C221
DNI
Figure 4 charging part
Figure 4 charging part
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LG Electronics
LG Electronics
Only for training and service purposes
VUSB VBAT
FM_SPK_OUTP
VBAT FM_SPK_OUTN
VPLL_1V35
C236 C238
1u 2.2u
B1
RCV
C2
VPIN
D3
VMIN
C1
D+
D2
D-
E3
RESET_N
D1
RESET2_N
E2
SLEEP1_N
E1
SLEEP2_N
F2
VAUDIOA
F1
VDDAUDIOA
G2
VDDAUDIOB
G1
VAUDIOB
H2
VAUX
H1
VDDAUX
J1
SU1_GATE
J2
SU1_GND
H3
SU1_FB
J3
SU1_ISENSE
K1
VDDSD2
K2
SD2_FB
L2
SD2_FBL
C226
2.2u
CN200
6
8
10
12
14
1
SC200
2
1 2
3
4
5
7
9
C220
11
22p
13
15
GU073-5P-SD-E1500
PMIC
VIO_2V62 VBAT
VBAT
VBAT VBAT
C241
1u
VDDRF13_AFC
U202
PMB6821
Single Charging IC for uUSB
V_BUS
RPWRON_EN
C210 C212
1u
1u
(645mA) (105mA)
-  -
35/136
35/136
3. TECHNICAL BRIEF
Revision B
R214
RTC_OUT ON_OFF2
27K
RPWRON_EN
C214
0.1u
CORE_1V35 CAM_A_2V8 VSIM_2V9
L201 VBAT
CAM_2V85 RTC_2V11 VRF_2V85
10u
C11
VMME
C10
VDDMME
D10
VDDRF2
D11
VRF2
E10
VRF3
E11
F10
VRF1
F11
VVIB
G11
VDDSIMVIB
G10
VSIM
H11
VAFC
H10
VRTC
H9
VDDUMTS
J11
VUMTS
FB201
K11
VDDSD1
J10
SD1_FB
L10
SD1_FBL
C208 C240 C223 C237 C219 C230
2.2u 1u 1u 1u 1u
10u
VIO_2V62
VIO_2V62 VIO_2V62 VBAT
11
PGND
1 10
IN BAT
2 9
U201
ISET _PG
3 BQ25040 8
VSS1 CHG
4 7
LDO VSS2
5 6
IFULL EN_SET
C224
1u
LGE Internal Use Only
LGE Property
LGE Property
Revision B
VBT_2V65 SD_1V8
VRF_1V5 VMME_2V9
Fi
Fi
C229 C228 C231 C202 C235
2.2u 1u 2.2u 2.2u 1u
_PPR
_CHG_EOC
_CHG_EN