LG U250 Service Manual page 145

7. CIRCUIT DIAGRAM
1 2 3 4
LCD CONNECTOR
CN400
A
ICVE21184E150R500FR
35 LCD_RESET_N
34 LCD_IF_MODE_0 INOUT_A1 INOUT_B1
1
33 LCD_IF_MODE_1 INOUT_A2 INOUT_B2
2
32 LCD_VSYNC INOUT_A3 INOUT_B3
3
31 INOUT_A4 INOUT_B4
4
30
29
28
27
26
25
24
23
22
21
B 20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
C 4
3
2
1
D
CAMERA
E MEGA CAMERA CONNECTOR
REV_1.0
R436 0
22 20
CAM_DATA_OUT(0) D0 PCLK
23 19
CAM_DATA_OUT(1) D1 VSYNC
24 18
CAM_DATA_OUT(2) D2 HSYNC
1 CN403 12
CAM_DATA_OUT(3) D3 STANDBY
2 11
CAM_DATA_OUT(4) D4 SCK
3 10
CAM_DATA_OUT(5) D5 SDA
4 9
CAM_DATA_OUT(6) D6 RESETB
5 7
F CAM_DATA_OUT(7) D7 MCLK
R437 20
ICVE21184E150R500FR ICVE21184E150R500FR
1 9 1 9
CAM_DATA(0) INOUT_A1 INOUT_B1 CAM_DATA_OUT(0) CAM_DATA(3) INOUT_A1 INOUT_B1
2 8 2 8
CAM_DATA(1) INOUT_A2 INOUT_B2 CAM_DATA_OUT(1) CAM_DATA(4) INOUT_A2 INOUT_B2
3 7 3 7
CAM_DATA(2) INOUT_A3 INOUT_B3 CAM_DATA_OUT(2) CAM_DATA(5) INOUT_A3 INOUT_B3
4 6 4 6
INOUT_A4 INOUT_B4 INOUT_A4 INOUT_B4
FL406 FL407
D
ICVE21184E150R500FR
1 9
CAM_DATA(6) INOUT_A1 INOUT_B1 CAM_DATA_OUT(6)
2 8
CAM_DATA(7) INOUT_A2 INOUT_B2 CAM_DATA_OUT(7)
3 7
CAM_VSYNC INOUT_A3 INOUT_B3 CAM_VSYNC_OUT
4 6
CAM_HSYNC INOUT_A4 INOUT_B4 CAM_HSYNC_OUT
FL408
VT_CAMERA_CONNECTOR
VGA_CAM_RESET_N
E VREG_CAM_AVDD_2.8V I2C_SCL
I2C_SDA
GND6
1
VREG_CAM_DVDD_1.5V P1 GND5
2
COMMON_CAM_MCLK P2
3 15
REV_1.0 P3 CN404 P15
4 14
CAM_PCLK P4 P14 CAM_HSYNC_OUT
5 13
CAM_DATA_OUT(0) P5 P13 CAM_VSYNC_OUT
12
P12 CAM_DATA_OUT(7)
11
GND1 P11 CAM_DATA_OUT(6)
GND2
F
CAM_DATA_OUT(1)
CAM_DATA_OUT(2)
CAM_DATA_OUT(3)
CAM_DATA_OUT(4) CAM_DATA_OUT(5)
1 2 3 4
LG(42)-A-5505-10:01
5 6 7 8
ICVE21184E150R500FR
9 1
INOUT_B1 INOUT_A1 EBI2_DATA(0)
8 2
EBI2_DATA(1)
INOUT_B2 INOUT_A2
7 3
LCD_CS_N INOUT_B3 INOUT_A3 EBI2_DATA(2)
9 6 4
LCD_ADS INOUT_B4 INOUT_A4 EBI2_DATA(3)
8
EBI2_WE_N
7 TP400
EBI2_OE_N
6
FL400
TP401
ICVE21184E150R500FR
FL401
9 1
EBI2_DATA(4)
INOUT_B1 INOUT_A1
8 2
EBI2_DATA(5)
INOUT_B2 INOUT_A2
7 3
INOUT_B3 INOUT_A3 EBI2_DATA(6)
6 4
INOUT_B4 INOUT_A4 EBI2_DATA(7)
FL402
ICVE21184E150R500FR
EBI2_DATA(8)
INOUT_A1 INOUT_B1
1 9
INOUT_A2 INOUT_B2 EBI2_DATA(9)
2 8
INOUT_A3 INOUT_B3 EBI2_DATA(10)
3 7
INOUT_A4 INOUT_B4 EBI2_DATA(11)
4 6
FL403
ICVE21184E150R500FR
INOUT_A1 INOUT_B1 EBI2_DATA(12)
1 9
INOUT_A2 INOUT_B2 EBI2_DATA(13)
2 8
INOUT_A3 INOUT_B3 EBI2_DATA(14)
3 7
INOUT_A4 INOUT_B4 EBI2_DATA(15)
4 6
FL405
LCD_MAKER_ID
VREG_LCD_2.8V
WLED_1
WLED_2
WLED_3
WLED_PWR
AUDIO
SELECT_SPK&RCV
U401
NLAS5223BMNR2G
1 10
+VPWR VCC NO2
2 9
C410 SPK-
NO1 COM2
CAM_PCLK 0.01u
3 8
CAM_VSYNC_OUT SPK_RCV- COM1 IN2
CAM_HSYNC_OUT
10 R421
MEGA_CAM_PWR_DOWN 4 7
IN1 NC2
I2C_SCL
R422 10 5 6
I2C_SDA RCV- NC1 GND
MEGA_CAM_RESET_N
CAM_MCLK
VREG_CAM_AVDD_2.8V
VREG_CAM_DVDD_1.8V
MIC
C416 C417
REV_B : SUMY0010301 --> SUMY0003802 10u 47p
REV_1.0 R424
2.2K
COMMON_CAM_MCLK
MIC400
OB4-15L42-C33L
1 C418 0.1u
2
C419 0.1u
CAM_DATA_OUT(3)
CAM_DATA_OUT(4)
CAM_DATA_OUT(5)
REV_B : EDTY0008606 --> EDTY0008601
Audio AMP
NCP2890DMR2
1 8
SPK_AMP_EN _SD OUTB
R426
REV_C : 20K --> 3K 2 U402 7
BYPASS VM
6
20K VP
C422 0.1u R428 5.6K
R427 1K 3
LINE_N INP
C423 0.1u
R429 1K 4 5
LINE_P INM OUTA
R430 5.6K
R431
20K
C425
C431
10u
NA
L401 100nH
SPK_RCV-
L402 100nH
SPK_RCV+
REV_E : For Antenna Radiation
5 6 7 8
9 10 11 12
VREG_MSMP_2.7V
R401
5.1K
C400
0.1u
+VPWR
10K
L400 5
4 VIN-
1
56nH VCC R404
MOTOR_PWR- HOOK_KEY
OUT GND 3 VIN+
2
D400 MIC2N
U400
MIC2P
NCS2200SQ2T2G
RB521S-30
HPH_L
HPH_R
USB_D+
USB_D-
EAR_SENSE_N
VBATT
R408
VBAT_SENSE
470K REMOTE_PWR_ON
+5V_PWR
USB_VBUS
UART_TXD
UART_RXD
CN402
REV_B : Change Pin Description
1 VBAT
2
VBAT_TEMP
3
4
R410
VREG_MSMP_2.7V
80.6K
VBAT_GND
+VPWR
LD400 LEBB-S14H
LD403 LEBB-S14H
LD406 LEBB-S14H
REV_B : EDLH0013501 --> EDLH0006001
KYBD_BACKLIGHT
SPK+
SPK_RCV+
RCV_EN_N
VREG_MSMP_2.7V
RCV+
REV_B
KEY_ROW(0)
KEY_ROW(1)
MICBIAS
KEY_ROW(2)
KEY_ROW(3)
MIC1P
MIC1N
KEY_ROW(4)
KEY_COL(0)
KEY_COL(1)
KEY_COL(2)
KEY_COL(3)
KEY_COL(4)
SPK-
+VPWR
SPK+
C428
1u
RCVN
RCVP
9
- 146 -
13 14 15 16
I/O CONNECTOR
2.2K
MICBIAS
R400
R403
VREG_MSMP_2.7V CN401
51K HSEJ-18S04-25R
21
19
1
2
3
C401 33u R406 100ohm
4
C402 33u R407 100ohm 5
6
7
8
9
10
REV_B
FL404 11
2 1 12
OUT IN
13
4 3 14
G2 G1
15
NTS104B 16
17
18
20
22
REV_1.0
KEY_BACK_LIGHT LED(8EA)
LD402 LEBB-S14H
R411
100ohm
LD404 LEBB-S14H LD405 LEBB-S14H R413 100ohm
R414 R415
100ohm
100ohm R416 100ohm
LD407 LEBB-S14H LD408 LEBB-S14H
R417 R418
100ohm 100ohm R419 100ohm
END
PM_ON_SW_N END
KEY MAP
CLR MENU
400 401 402 LEFT UP
1 2 3
403 404 405 OK RIGHT
4 5 6
406 407 408 SND SEARCH
7 8 9
HOT400 409 HOT401 DN BACK
HOT4 0 HOT3
KEYS
Section Date Sign & Name
KU250
U250/KU250
MAR.07.2007 Jaykay MODEL
Designer
Checked
KEY / MMI
DRAWING
NAME
Approved LCD/CAMERA
DRAWING
LG Electronics Inc.
REV_1.2
NO.
LGMC
A
B
C
D
E
F
C
D
E
Sheet/
Sheets
4/4
LG Electronics Inc.