LG L240 Service Manual page 101

7. CIRCUIT DIAGRAM
1 2
A
VCHG
R408
15K
MOD_LED
C402
R412
0.1u
10K
VA401
B
ANALOG SWITCH(UART)
C
U403
MAX4717ETB+T
GND
6
NC1
0 R431
5
DEBUG_TX NC2
R427 0 7
VBUS IN1
4
USB_PWR IN2
R441 47K 8
COM1
3
USBDP_UARTTXD COM2
9
TP404
NO1
2
TR_USB_DP
NO2
10
V+
1
P_GND
11
D
USB & UART2
VRIO
E 3
R438
Q401
2
USB_PWR
2SC5585
20K
1
1 2
3 4
INDICATOR
VBAT
R406 100ohm
VBAT
U402
DG2011DX-T1-E3
FSA4157L6X U401
6 1 2 6
B1 S REGEN V+ NO
5 2
GND VCC
4 3 1 4
B0 A IN NC
3 5
C403 C406 GND COM
0.1u 1u
VBAT VBAT
U404
MAX4701ETE+T
R442
0 TP401
1 16
UART_LV_RX NC1 COM1
DEBUG_RX
0 R428 2 15
BT_NRST_28 IN1_IN2 NO1
3 14
BT_TX NO2 V+
USBDM_UARTRXD TP402
4 13
TP406
UART3_TX COM2 NC4
TR_USB_DM
TP403
5 12
UART_LV_TX NC2 COM4
6 11
GND NO4
7 10
BT_CTS NO3 IN3_IN4
TP405
8 9
UART3_CTS COM3 NC3
17
PGND
UART3 & BT
BOOT SELECT
VRIO
R435
100K
USB_BOOT_SEL BOOT_SEL
R437
NA
3 4
5 6 7
VRIO
(NA @MP)
R404 R405
33K 33K
HANDSFREE
(NA @MP)
47 RA401
1 2
JTAG_TDI
3 4
JTAG_TCK
5 6
JTAG_TMS
7 8
JTAG_TDO
MODIND_LED
47 RA402
1 2
( for UART3 ) UART_RXD
3 4
( for UART3)
UART_TXD
5 6
( for UART3)
UART_RTS
7 8
( for UART3 ) UART_CTS
R422 NA C404 1u
AUXOP
R424 NA C405 0.1u
AUXI
UART3_RX
VRIO
BT_RX
UART_LV_RTS
U405 SN74LVC2T45YZPR
A1 A2
UART3_RTS VCCA VCCB
B1 B2
BT_RTS UART_LV_TX A1 B1
C1 C2
BT_NRST_28 UART_LV_RTS A2 B2
D1 D2
UART_LV_CTS GND DIR
VRIO
U407 SN74LVC2T45YZPR
A1 A2
VCCA VCCB
B1 B2
UART2_TX A1 B1
C1 C2
BT_NRST A2 B2
D1 D2
GND DIR
Section
Designer
Checked
Approved
Iss. Notice No. Date Name
5
- 102 -
8 9
IO_CON
VRIO VBAT VCHG
FB401 FB402
C401
BLM15AG100PN1
0.1u
CN401
1
R409 47 2
3
4
5
R407 1K 6
RPWON
7
8
9
R411 47 10
USBDM_UARTRXD
11
12
13
14
R416 47 15
USBDP_UARTTXD
16
USB_PWR
R417 47 17
DEBUG_RX
R418 47 18
DEBUG_TX
19
20
21
22
23
R421 47 24
JTAG_TRST
25
(NA @MP)
26
CN402
1
2
CN403
1
C460 C407
R423 20K 2
47p 30p BATT_TEMP
EVL5M02200
EVL5M02200 OUT1
100K
R425
VA402
VA403
VRIO
VREXTH VREXTH
U406 SN74LVC2T45YZPR
A1 A2
VCCA VCCB
B1 B2
UART_TXD UART_LV_RX A1 B1 UART_RXD
C1 C2
UART_RTS UART_LV_CTS A2 B2 UART_CTS
D1 D2
GND DIR
VRIO
VREXTH
VREXTH
U408 SN74LVC2T45YZPR
A1 A2
VCCA VCCB
B1 B2
DEBUG_TX UART2_RX A1 B1 DEBUG_RX
R444
C1 C2
BT_NRST_28 FOLDER_2 A2 B2 FOLDER
0
D1 D2
C408 GND DIR
0.1u
LEVEL SHIFTER
Date Sign & Name
MODEL
LG240
06/30
JM KIM
2006
DRAWING
IO CONNECTOR & INDICATOR
NAME
DRAWING
LG Electronics Inc.
Rev 1.1
NO.
10
A
B
OUT2
C
D
Sheet/
Sheets
4/7