LG U8120 Service Manual page 238

9. CIRCUIT DIAGRAM
1 2 3
A
TP3004
ONSWAn
B ONSWBn
ONSWC
RTCCLK
TP3000 TP2311 TP2310
SIMDAT0
SIMCLK0
SIMRST0
MCLK
I2CDAT
I2CCLK
CLKREQ
PWRREQn
VDIG
C
4.7u
C3013
VDIG
VBAT_C
LM20BIM7X
5 1
ADCSTR
GND2 NC
2
GND1
RTEMP
R3384
4 3
D V+ VO
NA VLOOP
U3106
WPOWERSENSE
NA
WRFLOOP
GPA6
VBACKUP
DCIN_3
C2280
Q2201
NA SI5441DC
1608
1
D1 D6
2
D2 D5
3
D3 D4
4
G S
DCIN_2
E
R3379
R3382
0 MOTOR_BATT
4.7
R3328 R3327 DACDAT
8.2K 180K
DACSTR
1% 1%
DACCLK
R3041
R3042
100K
R3043
100K
PT1
47K 100K
1% VSSPA
VDDPA
F VDDBUF
PASENSE+
PASENSE-
PAREG
IOUT
PCMSYN
PCMCLK
PCMDATB
PCMDATA
R3045
R3046
100K
R3047
100K
100K R3049
100K
G
H
1 2 3
4 5
C2621 0.1u
ROP-101-3029_2C
C4 A9
ONSWA RESETB
C5 C1
ONSWB IRQ
A7 B8
ONSWC PWRRST
B7 A6
INTLCKB LED1
M1 B6
XTAL1 LED2
R3002 M2 L1
XTAL2 32KHZ
C2
0 SIMOFF
R2312
F1
VDIG SIMVCC
1608
R2305
10K
H1 C2301 1u
SDAT
15K
J3 H3
SCLK SIMDAT
H2 G1
SRST SIMCLK
G2
SIMRST
K9 F3
MCLK CDCDA
C8 C2300 NA
SDA
B9 F2
SCL CDCDB
K3
CLK_REQ
C10 B12
SLEEP VDD_A
J12 A11
VREF VDD_B
L5
DEC0
K6 C11
C2281
DEC1 EXTLDO
C2211 C2212 C2213 C2214 K7
4.7u DEC2
0.1u R2220 H12 M11
IREF VDD_D
0.1u 0.1u 0.1u
L12
100K
VDD_E
L2
R3019 VDDLP
A12 C2203
VBAT_A
1u
0
R2205
M12
VBAT_B
A2 R3345 0.51
0 VDDBUCK
A3 2125
VBAT_C
A4
PBUCK
R2212 E1
VBAT_D
A5
0 C3246 NBUCK
B4
MOD1
0.1u
C7 A1
ADSTR SWBUCK
B2
VBUCK
M10 C3
GPA0 VDD_IO
L10
GPA1
K10 R3031
GPA2
L11 B5
GPA3 DACO1
K11 G11
GPA4 DACO2
J11 H11
GPA6 DACO3
J10 N2000
GPA7
VINCENNE
J9 A8
GPA12 TXON
D9 G10
GPA13 EXPOUT
F10
FF_IN
E2
DCIO
D1 M4
CHREG BEARP
D3
CHSENSE+
D2 L3
CHSENSE- BEARN
R2214
C2619
R2215
8 F11 L4 100u
0.1 FGSENSE+ AUXO1
7
0.05
6 L9
CCO
5 F12 C2608
FGSENSE-
1u
1608
H10 M8
C3271 C3272
VSS_A MIC1P
G3 22K
47p 47p VSS_B
C6 L8 R2617
VSS_C MIC1N
E3
VSS_D
VBATI VBAT D10 M6 22p
SUB AUXI1
C2612 C2618
B1 M7
VSSBUCK MIC2P
L7 0.068u
MIC2N
C2607 NA
D4 L6
TEST AUXI2
2012
B11 K12 HOOK
BDATA GPA5
B3 J4
VIBR AUXO2
C9 E4
DACDAT VSSTH31
B10 F4
DACSTR VSSTH30
A10 G4
DACCLK VSSTH29
H4
VSSTH28
J5
VSSTH27
J6
VSSTH26
J7
VSSTH25
E10 J8
VSSPA VSSTH24
G12 H9
VDDPA_DAC VSSTH23
C12 G9
VDDBUF VSSTH22
E12 F9
PASENSE+ VSSTH21
E11 E9
PASENSE- VSSTH20
D11 D8
PAREG VSSTH19
D12 D7
IOUT VSSTH18
D6
VSSTH17
K1 F7
PCMSYN VSSTH1
J1 G7
PCMCLK VSSTH2
K2 G6
PCMO VSSTH3
J2 E5
PCMI VSSTH4
E6
VSSTH5
R2218 M5 E7
VDIG
VDDCODEC VSSTH6
E8
0 VSSTH7
F8
VSSTH8
C2209 M3 G8
C2210 VDDBEAR VSSTH9
0.1u H8
VSSTH10
0.1u H7
VSSTH11
R2217
M9 H6
VDDADC VSSTH12
H5
0 VSSTH13
K8 G5
VSSADC VSSTH14
C2207 K5 F5
PWRRSTn
VSSCODEC VSSTH15
K4 D5
VSSBEAR VSSTH16
0.1u
4 5
6 7 8
R3378
3.3K
E
Q3203
VDIG DTA114EETL
B
C
D2010
EN_LED_R
1SS388
EN_LED_TC
R2107
RESOUT0n
NA
IRQ0n
PWRRSTn
R3376 0
C2302 & C2303 CLOSER TO SIM SOCKET SIM HOLDER
R3248
TP3316 INDICATOR LED
0
X2300
1
P1
V3202 2
P2
3
RB521S-30 P3
4
P4
R2306 11
GND3 GND1
R2313 47 12
GND4 GND2
0
KPD9D-8S-2.54SF
V2300 DALC208SC6
1 6
VDD_A IO1 IO4
1608
2 5
VDD_B
REF2 REF1
R2235 3 4
EXTLDO VBAT_C IO2 IO3
0
R2200
VDIG
R2201
VMEM 0
R2202 0
0 C2200
VRTC
1608 R2203 1K
C2202
1608 10u
BACKUP BATTERY
4.7u 2012
BA3000
L2202
C3247 VBACKUP VBATI
BLM18PG121SN1
Q2200 R2607
1608 120 OHM BEAD
0.1u
R2208
3.9K
3 D2 S2 4
0.22 C2205 10u
2 G1 G2 5 2012
1 S1 D1 6
L2200 22uH
R2210 0
SI1555DL V2201
VCORE
RB521S-30 VDIG
ELL5GM220M
C2206 R2213
CHOKE COIL
2012 10u
0.22 N2603
ADG702
VCORE
0 1 6
WDCDCREF C3248 D VDD
2 5
WPAREF
S NC
3 4
VCXOCONT 0.1u GND IN
C2604
TXON
EXPOUT
0.1u
FF_IN
L2603
BLM15BB750SN1J
C2638 NA
L2608
BLM15BB750SN1J
C2637 NA
N2602 IP4025CX20
X2603 C2630
R2613 A2
C2616
MICP SUMY0004501 22p
10 D4
C2615 AFMS_R_INT
22p OBG-15S44-C2KU
22p C1 A1
0.068u CCO MICN
C2614
C3270
R3397
D2 A3
MICP_INT ATMS NA
C2617
0
0.068u D1 A4 C2613
MICN_INT ATMS_CAP
0.033u
D3 B4
ATMS_INT AFMS_R
C2610 C3266
C3277
22p C2 A5
ATMS_AD AFMS_L NA 10p
X2602
4.7uF, 2012
D5 B5 5
AFMS_L_INT VDD
2
C2609
0.01u 3
C2611 B1 C3
GND1 GND4
4
100u B2 C4
GND2 GND5 6
B3 C5
GND3 GND6
1
C3268 C3269
TJATTE2
D2016
47p 47p C3278
RB521S-30
C3267 100p
NA
VDIG
R3385
NA
R3381
R3395
0
R3303
100K
3.3V REG
C2276
N2204
100p
VUSB
ON_OFF BYPASS
3 4
IRDA_REG_CTRL
GND
2
VBUS VIN VOUT
1 5
LP2985IM5X-3.3
R2232
C2278 10K
C2277
4.7u
2.2u
2012 USBSENSE
R2233
51K
USB REGULATOR
6 7 8
- 239 -
9 10 11
FB3
5
P5
6
P6
7
P7 FB4
8
P8
9
R2614 R2615
10 C2634
TGBUZZ
NA NA NA
C2635
NA
AUDIO AMP
C3273 NA
VBATI C2633
R2606 33K
22p
N2601
C2603 1u L2606
R2621 0
B1 C3
VDD VO2
1608
L2605 R2620 0
C1 A3
IN- VO1
R2608 A1 A2 C2606
IN+ BYPASS
0.33u
3.9K C2632
C2 B2 1608
C2605
SD_SEL SD_MODE
B3
0.1u
GND 22p
LM4898ITL
R2609
33K
C3274
NA
AMPCTRL
R2610
100K
SPKMUTE
TP3318
R2619 0
EARP
TP3319
R2618
0
EARM
C3221
22p C2631
22p
VDIG VEXT15
N2203
VIN VOUT
2 3
C2274 C2272
VSS NC
1 4
0.1u 1u
S-817A15ANB-CUE-T2
1608
D2015
RB521S-30
47K
GPA6
C3275 R3386
1.5V REGULATOR
NA NA
GPIO05
N3000 C3046
100p
ON_OFF BYPASS
VBATI 3 4
VIRDA
GND
2 R3050
0
VIN VOUT
1 5
LP2985IM5X-2.8
C3051 C3052
2.2u 4.7u
2012
IRDA REGULATOR
Engineer:
LG ELECTRONICS INC.
TAE-SUNG, HA
3G HANDSETS LAB.
Drawn by:
DEVELOPMENT GROUP 1
TAE-SUNG, HA
R&D CHK:
TITLE:
BB MAIN PCB
DOC CTRL CHK:
VINCENNE
MFG ENGR CHK: U8120 PT V1.3 STG INTEL PAM
Changed by: Date Changed: Time Changed: QA CHK: REV: Drawing Number:
mentor Tuesday, September 04, 2003 7:25:29 pm
9 10 11
12
A
B
C
SPKP
SPKM
D
E
F
G
H
Size:
A2
12 1 8 A
Page:
5
12