LG ME550d, Руководство по обслуживанию

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E
A
RX
TX
4 5
A
Checked
Approved
MODEL
B
C
Section
(UART3 <=> Bluetooth)
1 2
ANALOG SWITCH
BOOT SELECT
Designer
LG Electronics Inc.
3 4
DRAWING
NAME
DRAWING
NO.
Sheet/
Sheets
5 6 7 8
C
D
18Pin IO Connector
0(COM-NC)
1(COM-NO)
MAX47*
9 1 0
1
D
2 3
ANALOG SWITCH
ON BOARD JTAG INTERFACE
(UART3 <=> Remote control))
B
FM RADIO
OVP
27p
K
2007
01/24
ME550c MAIN
3/4
1.1
IO CONNECTOR & UART
Date Sign & Name
TP308
C323
TP307
TP303
TP306
100K R317
C318
1uF
FB301
16
17
18
19
2
20
21
22
3
4
5
6
7
8
9
CN301
1
10
11
12
13
14
15
VBAT
TP302
R325
100K
0.1u
C320
NA
EVLC14S02050
VA302
C317
C321
0.1u
C312 C313
4.7u
VRIO
0.47u
100K
R307
10K
R332
0 R318
10
5
_RST
6
_SEN
VRIO
12
GND3
15
GPIO1
19 18
GPIO2 GPIO3
17
14
LOUT
NC1
1
20
NC2
PGND
21
9
RCLK
3
RFGND
13
ROUT
SCLK
7
SDIO
8
16
VA
11
VD
VIO
VRIO
U304
SI4703-B16-GM
2
FMIP
4
GND1 GND2
20K
R334
2.4K
R312
R323
56K
0.1u C314
C324
VRIO
VRABB
47p
TP309
TP310
100p C315
10u
C303
20K
R329
VA301
EVLC14S02050
R313
100K
R311 NA
0.1u
C325
NO1
3
NO2
NO3
7
11
NO4
17
PGND
V+
14
VCHG_IN
VCHG
VBAT
COM1
16
COM2
4
COM3
8
COM4
12
GND
6
2
IN1-2
10
IN3-4
NC1
1
NC2
5
NC3
9
NC4
13 15
U305
ISL8499IRZ-T
VRIO
R333
10K
ESD1
A1 A3
ESD2
C1
ESD3 ESD4
C3
GND
B2
VBAT
CSPESD304G
D301
TP301
TP305
75
R31
C311
0.1u
10K
R336
R306
100K
C301
120p
NA
R390
100nH
L303
VRIO
0.1u
R319
20K
C316
R335
NA
R320 0
2
3
1
R32
75
Q301
2SC5585
G4
33K
R330
26
27
28
29
30
17
18
19
20
21
22
23
24
G1 G2
G3
10
11
12
13
14
15
2
3
4
5
6
7
8
9
16
25
CN302
1
5
VCC
VRIO
VRIO
FB302
U306
TC7SH04FS
2
GND
1 4
VCHG_IN
120p
L304
100nH
C310
C307
47p
47p
C305 C304
82p
C306
82p
VRABB
C308 0.1u
R314 47
TP304
COM2
COM3
8
12
COM4
6
GND
IN1_IN2
2
IN3_IN4
10
NC1
1
5
NC2
9
NC3
NC4
13
NO1
15
NO2
3
7
NO3
11
NO4
PGND
17
14
V+
R310
MAXT
U303
COM1
16
4
VBAT
3K
R322
10K
8
GATE
GATE_OUT
9
2
GND
IN1
1
IN2
4
5
IN3
NC1
11
12
NC2
6
OUT1
OUT2
7
10
_EN
_FLAG
3
U302 NCP348MTR2G
C319
1uF
R328
47K
0.1u
C322
120p
C302
I2C_SCL
I2C_SDA
FM_ANT
CLK_32K
VBUS
FM_ANT
BATT_TEMPS BATT_TEMP
_FM_RESET
RADIO_L
FM_INT
RADIO_R
BT_RTS
TR_USB_DM
TR_USB_DP
VBUS
REMOTE_INT
UART_RXD
UART_TXD
REMOTE_ADC
JTAG_TCK
JTAG_RTCK
JTAG_TDO
UART3_RX
UART3_TX
UART3_CTS
UART3_RTS
BT_NRST
BT_NRST
UART_RXD
UART_TXD
UART_CTS
UART_RTS
BT_RX
BT_TX
BT_CTS
VBATS
JTAG_TRST
JTAG_TDI
JTAG_TMS
HSMICBIAS
UART3_DSR
UART2_TX
VBUS
JACK_TYPE
BOOT_SEL
USB_BOOT_SEL
HSO_R
HSO_L
JACK_DETECT
RPWON
UART2_RX
HOOK_DETECT
HSMICIP
7. CIRCUIT DIAGRAM
ME550d