LG KG920 Service Manual page 142

7. CIRCUIT DIAGRAM
1 2 3
A
B
BLUETOOTH
VBAT 2V8_VBT
R342
U300
0
VIN VOUT
3 4
R311 GND BGND
2 6
(GPIO_2) BT_EN STBY NC
1 5
330
BH28FB1WHFV
C300
C302 C303 2.2u
4.7u 0.1u
C
2V8_VBT
TC7SH08FS
5 U301
1
USC3 VCC
4
PCM_SYNC8 (GPIO_8) BT_RST
3
PCM_TX
GND
C304
2
0.1u
2V8_VMEM
U302
MAX4717EBC-T
C2 C4
(GPO_18) PCM_EN IN1 NO1 PCM_RX
D
A2 A4
IN2 NO2 PCM_TX
C3 C1
USC_1 COM1 NC1 USC1
A3 A1
USC_2 USC2
COM2 NC2
C317
0.1u
E
FLIP SWITCH
2V8_VEXT
2V8_VEXT
F U305
EM-6681-T3
VDD
(GPIO_5) (GPIO_6)
GND
SWING0 OUT SWING1
C323
VA301
0.01u
EVL5M02200 EVL5M02200
SWING0
0 HIGH
G
180 LOW
H
1 2 3
LGIC(42)-A-5505-10:01
4 5 6
ANT300
NC1
R308
FEED NC2
0
C301
15p
2V8_VBT
M300 LBMA-2C67B2
16 22
RESETB VDD_1_8V
21
VDD_DIG
3
C305
VDD_VREGIN
1
NA PIO0 C306 C307 C308
2 4
PIO1 GND1 2.2u 2.2u 15p
7 6
PIO2 GND2
8 11
PIO3 GND3
9 25
PIO4 GND4
10
PIO5
27 R323 47
UART_TX DEBUG_RX
24 R326 47
UART_RX DEBUG_TX
28 23
NC UART_RTS
26
UART_CTS
13 19 R327 47
SPI_CLK PCM_IN PCM_TX
R329 47
14 17
SPI_CSB PCM_OUT PCM_RX
R330 47
12 18
SPI_MOSI PCM_SYNC PCM_SYNC8
R331 47
15 20
SPI_MISO PCM_CLK USC0
MM_USB+
MM_USB-
2V8_VEXT
2V8_VEXT
U306
EM-6681-T3
VDD
GND
OUT
C324
VA303
0.01u
SWING1
LOW
HIGH
4 5 6
7 8 9
I/O CONNECTOR INTERFACE
2V8_VEXT
VUSBIN
R309
(GPIO_11) DSR
R310
RPWRON
R314
USC0
R315
USC6
R316
USC1
R317
USC2
R318
USC3
R319
DEBUG_TX
DEBUG_TX
R320
USC5
R321
USC4
DEBUG_RX R322
DEBUG_RX
1
5
R324
2
BATT_TEMP
4
0
VUSBIN
3
C314 C315
39p 27p
CN301
U303
C316
MAX4717EBC-T
4.7u
(GPIO_16)
R332
C4 C2
USB_PATH_SEL
NO1 IN1 VUSBIN
1.5K
A4 A2
NO2 IN2
C1 C3
USB+ NC1 COM1 C318 C319
10u 3p
A1 A3
USB- NC2 COM2
C321
R334
1u 100K
SIM CONNECTOR
2V85_VSIM 2V85_VSIM
2V85_VSIM
J300
R337
4 1
GND1 VCC
20K 5 2
VPP RST SIM_RST (GPIO_23)
6 3
SIM_DATA IO CLK SIM_CLK
10 7
GND5 GND2
9 8
C326 GND4 GND3 C325 C327
C328
NA 220n 22p
1000p
Section
Designer
Checked
Approved
Iss. Notice No. Date Name
LG Electronics Inc.
7 8 9
- 143 -
10 11 12
RA300 RA301
NA
0 0
VCHARGE
ICVFP10181E301PR FL300
OUT IN
GND2 GND1 VBAT
CN300
1
2
47 3
4
5
47 6
7
47 8
47 9
10
11
12
47 13
47 14
15
16
47 17
10 18
19
47 20
21
22
47 23
47 24
25
26
OUT301 OUT302
C309 C310 C311 C312 C313
39p 10u 1u 1u 39p
(GPIO_13)
CHG_DET
C320
10p
JTAG PIN EMULATOR
JTAGEN(1) NTRST
_RESET(2) NSRST
TMS(7) TMS
TCK(9) TCK
TDI(11) TDI
TDO1(18) TDO
2V8(24) VTREF
VBAT
EVL5M02200
C322
VA300
1uF
MOTOR-
R339
Q300
VIBRATOR
2SC5585
1.5K
VIBRATOR
Date Sign & Name
Sheet/Sheets
MODEL
2006/ KG920(MAIN)
SANG KYU SONG
03/11 3/7
DRAWING
BLUETOOTH/IO CONNECTOR
NAME
DRAWING
VER_1.0
NO.
10 11 12
LG Electronics Inc.
A
B
C
D
E
F
G
H