LG KE970 Service Manual page 117

7. CIRCUIT DIAGRAM
1 2 3
A
PMIC & Li-ion CHARGER
R204
RTC_OUT PWRON VBACKUP
220K
R207
B 470K
SPOWER_INT
VCH_CTL
_PMRST
VBAT
1V8_MEM 3V1_USB 1V5_RF VBAT
FB201
VCHS
PWRON
L201 10uH
C
USB_PU
VBUS_USB
C225
C228 C226 C229 C227 C230 C231 C232 C233 C234
2.2u 2.2u 10u 10u 10u 10u 2.2u 2.2u 0.1u 2.2u
connecto GND to PIN7 / PIN8 (1608)
2V72_IO 2V85_CARD 2V85_IO2 2V85_SIM VBAT
D
C241 C242 C243 C244 C245
2.2u 2.2u 2.2u 2.2u 2.2u
(1608)
E
AUDIO AMP SUB SYSTEM
3V3_AUDIO
F
C255
1u
C256
0.1u
23
MONO_IN+
2V72_IO
11 22
SCL SCL MONO_IN-
10 15
SDA SDA MONO+
13 U207 17
ID_ENB MONO-
R233 100K LM4946SQX
2 19
VOC RHP3D1
7 24
G
I2CSPI_VDD RHP3D2
C263
14 8
0.1u I2CSPI_SEL RIN
5
ROUT
C267 470n C270
0.068u R243
C269 1u
4.7K
H
1 2 3
4 5
USB CHARGING CIRCUIT WITH INDICATE LED
VCHG 2V11_RTC 1V5_CORE 1V5_DSP 2V85_RF VBAT 2V7_VCXO 2V65_BT
C205 C206 C207 C208
0.1u 0.1u 0.1u 0.1u
R205
22K
C215 C216 C217 C218 C219 C220 C221
2.2u 2.2u 2.2u 2.2u 2.2u 2.2u 2.2u
(1608) (1608) (1608) (1608)
2V65_ANA VBAT
1 36
VCHS VCXOEN VCXO_EN
2 35
VBATS VDDA
3 34
VRFC VANA
4 33
ON VSSR
5 U203 32
VDDPW IREF C223 C224
R210 82K
6 31
SW BYP 2.2u 2.2u
C222 0.1u
7 PMB6812 30
VSSPW VDDAU (1608)
8 29
VSSFB AUOP
9 28
FB AUON
10 27
VUPU VSSAU
11 26
VUSB AUIP
12 25 VCHG
VBUS AUIN
Q201
SI3457BDV
S C235
R211
G 4.7u
VCH_CTL 100K
D1 D2 D3 D4
D201
SDB1040
AF_PWR_EN
VCHS
AUDIO_AMP_EN
VBAT
R221
0.15
C240
68u
MULTI-PORT SWITCH 2
2V85_IO2
2V72_IO
R224
100
R225
C253
10K
CTS_0
U205
R226 47
1
VCC
2
RTS_0 NO1
R227 47
3
COM1
4
IN1
5
HS_OUT_R NC1
NLAS5223BMNR2G
HS_OUT_L
SPK_P
3V3_AUDIO
SPK_N
R235
C260
0.068u 100
R237
4.7K
R238 0
C261
BBP_SND_R
C262 220n
SPK_N
U208
HS_OUT_R
1
VCC
C264 100u
2
C266 100u SPK_P NO1
HS_OUT_L
3
COM1
R241 0
BBP_SND_L
C268 220n 4
IN1
5
RCV_P NC1
NLAS5223BMNR2G
RCV_N
4 5
6 7 8
VBAT
U202 ISL6294
2V72_IO
1 8
VBUS_USB VIN BAT
2 7 360mA
_PPR IREF
R201
10K
3 6 50mA
_USB_EOC _CHG IMIN
4 5
_USB_CHG_EN _EN GND
9
PGND
C213 R208 R209 C214
1u 220K 33K 1u
MICRO SD & SIM HYBRID SOCKET
AUDIO/AF LDO
TF_PWR_EN
VBAT
2V8_AF 3V3_AUDIO
11
PGND
1
VIN
10
VO1
2
EN1 TF_DAT2
9
VO2 TF_DAT3
3
EN2 TF_CMD
8
NC3
4
R220 R222 CBYP TF_CLK
7
100K 100K NC2
5
NC1 TF_DAT0
6
GND TF_DAT1
C246 C247 C248 C249
U204
1u 1000p 1u 1u TF_DETECT
ISL9014IRJNZ
MULTI-PORT SWITCH 1
HSO_SEL MULTI_PORT_2 MULTI_PORT_3
H CTS_0 RTS_0
L HS_OUT_L HS_OUT_R
100p
2V72_IO
10
C254
NO2
27p
R229
9
COM2 MULTI_PORT_2
10K
R228 24
8 Pin6
IN2 HSO_SEL TXD_0
Pin7
RXD_0
7
NC2 2V85_IO2
R230 47K
6
GND
C258
27p JACK_DETECT
MULTI_PORT_3 C259
R232 24
100p
R244
Pin6
REMOTE_INT
SPK_RCV_SEL SPK_RCV_P SPK_RCV_N
100K
Pin7
H SPK_P SPK_N
REMOTE_ADC
L RCV_P RCV_N
100p
VA201
10
C265
NO2
100p
9
COM2 SPK_RCV_N USB_PU
R239 1.5K
8 Pin6
IN2 SPK_RCV_SEL USB_DP
R240 10 Pin7
USB_DM
6 R242 10
NC2
7
GND JACK_DETECT VBUS_USB
0 0
C271
1 0
100p
0/1 1
SPK_RCV_P
mentor
6 7 8
- 118 -
9 10 11
BATTERY CURRENT MONITOR
VSUPPLY VBAT
C201
0.1u
C202 C203
2.2u 2.2u
CN201
D1 C204 U201
R203
1 5 1
100p
47mohm LOAD NC
2 2
BATT_TEMP (F) GND
3 R202 1K 4 3
VIN IOUT I_MONITOR
D2
C209 C210 C211 C212 R206
ZXCT1010E5TA
10p 27p 47p 1u 2.2K
(F)
2V85_CARD 2V72_IO C236 C237
Q203 27p NA 2V85_SIM
1 S1 D1 6
R212 100K
2 G1 G2 5 R213
R214
3 D2 S2 4 100K
4.7K
NTJD4105CT1G
C238
Q202
C239 1u SI1305-E3
27p
R215 R216 R217 R218 R219
100K 100K 100K 100K 100K
1
1
2
2
3
3
4 16
4 GND1
CN202
5 15
5 GND2
6 14
6 GND3
7 13
7 GND4
8 12
8 GND5
11
GND6
R223 47 9
SWB
10
SWA
C250 C251 C252
1000p 22p 1uF
VBAT
C257
0.1u
VBAT
U206 DG2018DN_T1_E4
R231
1 12
NC1 Pin7 COM4 MULTI_PORT_1 10K
2 11
IN1_2 NO4
3 10
NO2 IN3_4
4 9
COM2 Pin7 NC3
C
OUT
R234
Q204 B
VBUS_USB
RN1307 IN
R236 10K
E 10K
GND
MULTI_PORT_0
MULTI_PORT_0 MULTI_PORT_1
REMOTE_INT REMOTE_ADC
TXD_0 RXD_0
USB_DP USB_DM
Engineer:
LG Electronics
Drawn by: G.C.LIM
R&D CHK:
B.Y.YANG TITLE:
KE/ME970 MAIN
DOC CTRL CHK:
(PMIC, AUDIO, etc.)
MFG ENGR CHK:
Changed by: Date Changed: Time Changed: QA CHK: REV: 1.2 Drawing Number:
2006-10-25
9 10 11
12
A
B
C
D
E
F
G
H
Size:
A3
12 1 8 A
Page:
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