LG GS290 Service Manual page 57

7. CIRCUIT DIAGRAM
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FM_SPK_INN
FM_SPK_INP
USB_OEN
USB_DAT_VP
USB_SE0_VM
TXON_PA
SD_1V8 VAUDB_2V5 VBAT
VAUDA_2V5 VFM_2V9
I
USB_DP
USB_DM
PMRSTN
VCXO_EN
BT_CLK_REQ
H
C207 C205 C200
1u 1u 1u
C204
0.1u
C234 C239 C222 C209
G
22u 2.2u 2.2u
10u
F
E
D
USB_DM
USB_DP
UART_RX
UART_TX
C
I2C_SCL
I2C_SDA
B
A
12 11
LGE Internal Use Only
7. CIRCUIT DIAGRAM
12
11
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AUDIO AMP SUB SYSTEM & SIGNAL DISTRIBUTOR
VIO_2V62
J
EAR_P C364 220n
C365 220n
EAR_N
C347
220n
FM_AUDIO_L
C350
BB_SND_L
C351
BB_SND_R
C321 220n
FM_AUDIO_R
I
I2C_SDA
I2C_SCL
C361
0.1u
R348
0
H
G
Receiver & Speaker
VBAT
U306 FSA2268UMX L315
10 8
SPK_RCV_P 1B0 1A
68n
1 7
FM_SPK_OUTP 1B1 S1
L316
F
2 5
SPK_RCV_N 2B0 2A
68n
3 6
FM_SPK_OUTN 2B1 S2
4 9
GND VCC
C381
2.2u
E
D
VBAT
BU31TD2WNVX U302
4 1
VIN VOUT
3 2
VIB_EN STBY GND
C331
C330 1u
1u
C
VIB_PWM
B
A
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Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
10 9 8 7
PMIC
VUSB VBAT
FM_SPK_OUTP
RTC_OUT
VBAT FM_SPK_OUTN
VPLL_1V35 VIO_2V62 VBAT
C236 C238
1u 2.2u VBAT
VBAT VBAT
C241
1u
VBAT
L201
10u
B1
RCV
C2
VPIN
D3 C11
VMIN VMME
C1 C10
D+ VDDMME
D2
D-
D10
VDDRF2
E3 D11
RESET_N VRF2
D1
RESET2_N
E2 E10
SLEEP1_N VRF3
E1 E11
SLEEP2_N VDDRF13_AFC
F2 F10
VAUDIOA VRF1
F1 U202 F11
VDDAUDIOA VVIB
G11
VDDSIMVIB
G2 PMB6821
VDDAUDIOB
G1 G10
VAUDIOB VSIM
H2 H11
VAUX VAFC
H1
VDDAUX
H10
VRTC
J1
SU1_GATE
J2 H9
SU1_GND VDDUMTS
H3 J11
SU1_FB VUMTS
J3
SU1_ISENSE
K11
VDDSD1
K1 J10
VDDSD2 SD1_FB
K2 L10
SD2_FB SD1_FBL
L2
SD2_FBL
C227 C226 C208
0.1u 2.2u
Micro USB
VIO_2V62 VUSB VBAT
V_BUS
D2 D5
BAT VB
R210 30 A4 C5
DN1 COMN1 USW_DM
R209 30
A5 U200 B5
DP2 COMP2 USW_DP
FB200
B3 B4
U1 UID USW_ID
TP203 A3 MAX14526EEWP+TCC6 RPWRON_EN
U2 USW_DM
B1 R200
USW_DP
RES
A1 2.2K
MIC USW_ID
D4 D1
AUD1 CAP
D3
AUD2
C4
GND
A2 C3
ISET IC
C206
2.2u C213
DNI
USW_INT
VIO_2V62
R218
10K
10 9 8 7
10 9 8
VBAT
MIC
C311 C320
0.1u 2.2u
FB305
C373 22n
MAIN_MIC_P
E1 A4
INM+ LSOUT+ SPK_RCV_P BLM15AG121PN1
D1 A3
INM- LSOUT- SPK_RCV_N
FB306
C374 22n
1u MAIN_MIC_N
C1 D2
INL SET
BLM15AG121PN1
1u U304
C2 LM49151TLX
INR
E3
HPL HSO_L L303
C3 VMIC_P
BYPASS 100n
A1
I2CVDD C307 C322 C318 C314 VA300
B2
SDA 47p 1u
B3 E2 27p 27p
SCL HPR HSO_R
C313
VMIC_N
4.7u
C343 C342
C363 R330
C362 27p 27p
C319 0.1u 100K
2.2u 2.2u
EAR_GND
BATTERY CONNECTOR
VBAT
FB308 CN301
1800
1
BLM15BD182SN1D C338
39p
FB309 2
1800
R312
BRS-181213SL08-P
BLM15BD182SN1D VIO_2V62
1K
RCV_FM_SEL C310 C336 C332 C337
10p 27p 47p 2.2u
C349
100p
R346
C333 C341
VA305 VA303 56K
22p 22p (1%)
EVLC5S0250 EVLC5S0250
BAT_ID
R347
56K
(1%)
Vibrator
BACKUP BATTERY
C316 10n
RTC_2V11
R310
100K
U303 TPA6202A1ZQVR
R311
C3 A3
IN- VDD
51K VB301
L307
R315
C2 B3 1
IN+ VO+ 100n M300
51K
B1 A1 L301 2
_SHUTDOWN VO-
100n
C1 B2
BYPASS GND
C355 C325
C OUT
1u
10n
B Q300
1 IN KRC402E
2
E GND
R318
100K
10 9 8
6 5 4
R214 RPWRON_EN
ON_OFF2
27K
RPWRON
RPWRON_EN
C214
0.1u
CORE_1V35 CAM_A_2V8 VSIM_2V9 VBT_2V65 SD_1V8
VBAT
CAM_2V85 RTC_2V11 VRF_2V85 VRF_1V5 VMME_2V9
External Reset JIG Connector
FB201
SPOWER_INT
_RESET
C240 C223 C237 C219 C230 C229 C228 C231 C202 C235
2.2u 1u 1u 1u 1u 2.2u 1u 2.2u 2.2u 1u
10u
Single Charging IC for uUSB
V_BUS VIO_2V62 VIO_2V62
V_BUS
CN200
6
8
10
12
14
1 SC200
2 11
PGND
1 2
3 1 10
IN BAT
4 2 U201 9
ISET _PG
5 3 BQ25040 8
VSS1 CHG
7 4 7
RPWRON_EN LDO VSS2
9 5 6
C221 C220
IFULL EN_SET
DNI 22p 11
13
15
C210 C212
GU073-5P-SD-E1500 1u 1u
(645mA) (105mA)
6 5 4
- 114 -
7 6 5 4
3.5phi HEADSET
VIO_2V62
JACK_DETECT
L309 FB303
HSO_R
100n
1800
MIC300
L308 FB304
1
OUT HSO_L
100n
2 1800
G1
3
G2
4
G3
5
PWR
6
G4
C358 C306
SPM0410LR5H-QB 270p
270p
VA302
EAR_GND
VIO_2V62
U300
NCS2200SQ2T2G
5 VIN-
4
R319 1 VCC
HOOK_DETECT
47
OUT GND 3 VIN+
C315 2
120p
MIC_GND
C354
560p
C324
HS_MIC_N
C344
10p
C357
HS_MIC_P
C353
560p
CN300
HSBC-3PT25-19N
1
2 4
3
FM Radio(LNA)
VBT_2V65
C370
U305 47n
BGB707L7ESD
1 6
VCC C_A
C371 47n
GS290_C-CLIP 2 5 TP313
L313 BIAS_OUT ON_OFF FM_LNA_CTRL
R304 R309
1 C366 330p 270n 3 4 C369 330p
FEED RF_IN RF_OUT FM_ANT
1 270n 2 100n
ANT302
ANT303 D300 C384 2
VA308
22p EVLC18S02015
EDTY0008606
1
C368
R342
680
330p
7 6 5 4
- 115 -
3 2 1
L
K
Power On
RTC_2V11
END_KEY_IN
KP_IN[6]
3 J
R226 2
END Q200
PWRON
10K
1
3
2
END_KEY_IN Q201
KP_OUT[2]
1
I
H
VIO_2V62
RTC_2V11
R225
DNI
U203
7 A1 VCC 8
6 1
B1 Y1 PM_INT
5 2
Y2 B2 PMRSTN
4 3
GND A2 G
C242
NC7WZ08L8X_F113 DNI
R203 0
R202 0
F
E
VBAT VIO_2V62
D
_PPR
_CHG_EOC
_CHG_EN
C
C224
1u
B
A
3 2 1
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3 2 1
C339 1n
FM_ANT
EAR_GND
J300
BLM15BD182SN1D
M6_GND
M1_R
ASSIST
M3_DETECT
M4_L
BLM15BD182SN1D
M5_MIC
KJA-PH-4-0171
VA309
R334
VA304 VA306 VA307
10K
EVLC5S02100
VAUDB_2V5
22n R324
2.2K
22n
C356
2.2u
EAR_GND
FM Radio & Bluetooth_BC7_CSR
VBAT
VBT_2V65
C375 C308 C378
C312
2.2u
2.2u 0.1u
0.1u
C379
C309 C377 C304
2.2u
2.2u 470n 2.2u
L319
FM_ANT
100n
L318
C376
PCM2_IN D4
100n 27p PCM2_OUT B5
I2S2_SDO
B6
PCM2_SYNC I2S2_WS
C5
PCM2_CLK
I2S2_CLK
E1 FM_RX PCM1_IN_SPI_MOSI F5
BT_PCM_OUT
G6
PCM1_OUT_SPI_MISO BT_PCM_IN
E2 G5
VSS_FM_AUDIO PCM1_SYNC_SPI_CS BT_PCM_SYNC
PCM1_CLK_SPI_CLK F4
BT_PCM_CLK
F1 FM_TX_P
D6 TP308
UART_TX BT_UART_RX
ANT301 FL300 G1 U301 D5
FM_TX_N UART_RTS BT_UART_CTS
LFB212G45SG8A166
R302 UART_CTS E6
BC7820 BT_UART_RTS
C382 15p B1 BT_RF UART_RX C6 TP311
IN OUT BT_UART_TX
0 GND1 GND2
C1 D3 C301 1u
C302 VSS_BT_RADIO_BAL AUDIO_OUT_L FM_AUDIO_L
C303 1u
1.5p AUDIO_OUT_R D2
FM_AUDIO_R
E3 TP312
PIO_2_CLK_REQ_OUT BT_CLK_REQ
E4 100K
SPI_PCM_SEL
R301
PIO_3_CLK_REQ_IN F3
C3
PIO_4 BT_HOST_WAKEUP
R305
100K
C305 100p
CLK26M
R343 470
CLK32K
3 2 1
LGE Internal Use Only
L
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G
F
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D
C
B
A