LG KM380t Service Manual page 100

8. CIRCUIT DIAGRAM
1 2 3
A
2V8_CAM_DVDD
B 2V8_CAM_AVDD
VBT_2V9
1V8_CAM
VBAT FB300
U300
RT9011-MGPQW
1 8
VIN VOUT1
2 7
EN1 VOUT2
3 6
EN2 NC2
C307 4 5 C308 C309
NC1 GND
1u 1u
1u
C
D
TP300
R315 100ohm
22 20
CAM_D(0) D0 PCLK
23 19
CAM_D(1) D1 VSYNC
24 18
CAM_D(2) D2 HSYNC
1 U302 12
CAM_D(3) D3 STANDBY
2 11
CAM_D(4) D4 SCK
3 10
CAM_D(5) D5 SDA
R316
4 9
CAM_D(6) D6 RESETB
5 7
CAM_D(7) D7 MCLK 100
C322
C323
2V8_CAM_DVDD
10p 0.1u
2V8_CAM_AVDD
FB306
E
1V8_CAM
C327 C328 C329
0.1u 0.1u 0.1u
F
MAIN RECEIVER
L306 100nH
C
RCV_P
RCV_N
L309 100nH
C570 C571 C338 C339
47p 47p 47p 47p
Close to U102
D
SPK
L314 56nH
SPK_AMPP
2
E
1
C349 L315 56nH
CN302
100p
VA310 VA309
SPK_AMPN
C350 C351
EVLC18S02015 EVLC18S02015
47p 47p
F
1 2 3
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4 5 6 7
Battery Connector & Current Monitor
VSUPPLY VBAT
C574
C577 2.2u
100p
U301
ZXCT1010E5TA
R305
5
47mohm
1 4
4 2
R309
3
BAT_ID
CN300
1K
C315
100p
OVP CHARGING IC
CAM_PCLK
TP301
CAM_VS
TP302 VCHG
CAM_HS
CAM_PD
VBUS_USB
I2C_SCL
I2C_SDA
VIO_2V62
CAM_RST
CAM_CLK
C325
C324
15p
10p
EOC
TP515
CHG_EN
(1%)
OUT300
OUT301
VSIM_2V9
R325
9
10K
GND3 GND2
10
GND4 GND1
6
SIM_IO C7
5
C6
4
C346 C5
22p
VIBRATOR
U304
SUY98005LT1G
R327
1
VIB_CTRL
VIN
3
1K VOUT
R329
2
GND
100K
4 5 6 7
8 9 10 11
VAUDIO_2V5
R301
HOOK_DET
100ohm
C301
C576 100p
R303
100p
1.5K
1
C304
LOAD NC
2 0.1u
GND HS_MIC_N
3 C305
VIN IOUT LOAD HS_MIC_P
0.1u
C311 C312
C310 C306
27p 27p 10u
1u
VBAT VCHG_OVP VBUS_OVP
U303 ISL9221
13
PGND
1
VDC
12
VDC_BYP
2
VUSB
11
BAT
3
_PPR
10
USB_BYP
4
_CHG
9
IVDC
5
_EN
8
GND
6
IMIN
7
IUSB
R319
C332 C333 C334
0.1uF 0.1u 0.1u
R596 16K
(1%)
DNI
J301
8
7
3
C3 SIM_CLK
2
C2 SIM_RST
1
C1
C347 C348
0.1u 150p
VBAT
VB300
+
1
R328 L316
2
C593
-
10 100nH CN303
C352 2.2u
1u
0.1u
8 9
- 101 -
12 13 14
VIO_2V62
C302
4.7u
VBUS_USB
VIO_2V62 VCHG VSUPPLY
C303
24p
R306
2.2K
L301 100nH
C313
100p
FB301
FB302
USB_DP
USB_DM
R311
JACK_DET
47
RPWRON_EN
FB303
FB304
R313 47 FB305
UART_TX
R314 47
UART_RX
ICVS0505500FR
VA304
VA300 VA302 VA303 VA407
C316 24p
VA301
HSO_L C319
1u
L302 100nH
ICVS0505500FR
C321 24p
VA408
HSO_R
VA305
L303 100nH C326
1u
VA306
3.5phi HEADSET
VIO_2V62
3.5phi
L508 100nH
JACK_DET_3.5
L308 100nH
HSO_3.5_L
HSO_3.5_R
7620-3_5G-DB1-A J302
C342 C343
47p 47p
C344
L509
100nH
C345 24p
HSO_3.5_VMID
L313
100nH C594
47p
LGE Internal Use Only
15
A
FM_ANT
B
L300 C300
24p
100nH
CN301
21
19
1
C
2
3 2 : Headset MIC
4
5 4 : HSO_L
6 5 : HSO_R
7 6 : USB+
7 : USB-
8
9 8 : JACK_D
10
9,10 : BATT
11
12 11 : R/ON
13
12,13 : CHG
14
15 14 : DSR
15 : VUSB
16
17 16 : D/ TX
D
18 17 : D/ RX
20
22
E
F
C
1000p
FM_ANT
D
E