LG U990 Service Manual page 172

7. CIRCUIT DIAGRAM
1 1 2 2 3 3
A A
VREG_MMC_3.0V VREG_USB_3.3V CAM_VDD_IO_2.7V MMP_VDD_CORE_1.0V
C301 C302 C303 C304 C305 C306 C307 C300
10u
0.1u 0.1u 0.1u 0.1u 0.1u 0.1u 10p
MMP_VDD_1.9V
LCD_VDD_2.8V VREG_MSMP_2.7V
B B
C310 C311 C308 C312 C313 C314 C315 C309
0.1u 10p 10u 0.1u 0.1u 0.1u 10p 10u
MMP_LCD_BYPASS_CS_N
VREG_MSMP_2.7V
C C
R310 MMP_CS_N
10K NAND_ALE
EBI2_OE_N
EBI2_WE_N
MMP_INT_N
EBI2_ADDR[11]
EBI2_ADDR[12]
EBI2_ADDR[13]
EBI2_ADDR[14]
EBI2_DATA[0]
EBI2_DATA[1]
EBI2_DATA[2]
EBI2_DATA[3]
EBI2_DATA[4]
EBI2_DATA[5]
EBI2_DATA[6]
D D
EBI2_DATA[7]
EBI2_DATA[8]
EBI2_DATA[9]
EBI2_DATA[10]
EBI2_DATA[11]
EBI2_DATA[12]
EBI2_DATA[13]
EBI2_DATA[14]
EBI2_DATA[15]
EBI2_DATA[0:15]
E E
MMP_STROBE_READY
MMP_I2C_SCL
MMP_I2C_SDA
F F MMP_CAM_RESET_N
MMP_STROBE_CHARGE
MMP_CAM_PWR_EN
MMP_CAM_INT
TP302
MICROSD_DETECT
C331
22p
L300
TV_OUT
2.2uH
C334 C335
330p 330p
G G
27Mhz XTAL
MMP_XTAL_IN
MMP_XTAL_OUT
FA-238_27MHz_9PF
X300
4 3
1 2
27MHz
C339 C340
H H
8p 8p
1 1 2 2 3 3
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4 4 5 5
R309
F1
NA SDAT0
F2
SDAT1
E5
SDAT2
F3
SDAT3
H2
SCMD
R311 0 B8 G1 R312
HCS0N SCLK
R313 NA A8 G3
HCS1N SWP
B7
HRDN
B9 P12
HWRN VMCLK
A7 P10
HGINTN VPCLK
M12
VHREF
A10 K12
HA11 VVS
A9
HA12
C8 P8
HA13 VIDA
C7 N8
HA14 VIDB
P9
VIDC
D12 M10
HD0 VIDD
C10 N10
HD1 VIDE
C12 N9
HD2 VIDF
C13 N11
HD3 VIDG
C14 P11
HD4 VIDH
B14 N12
HD5 VIDI
C11 N7
HD6 VIDJ
B13 L8
HD7 VIDK
A14 P13
HD8 VIDL
A13 L9
HD9 VIDM
B12 N13
HD10 VIDN
A12 M11
HD11 VIDO
B11 M9
HD12 VIDP
A11
HD13
C9 B5
HD14 LD0
B10 A5
HD15 LD1
B6
LD2
L13 B4
NCSN LD3
M13 A4
U302
NALE LD4
L12 C3
NCLE LD5
L11 A3
ZR3453
NREN LD6
K13 A2
NWEN LD7
M14 A1
NRBN LD8
B2
LD9
L14 B1
ND0 LD10
L10 B3
ND1 LD11
J12 C1
ND2 LD12
H12 C2
ND3 LD13
K14 C5
ND4 LD14
G12 C6
ND5 LD15
J13 D3
ND6 LD16
H13 D1
ND7 LD17
K11
ND15
A6
LCS0N
N2 D2
SPICLK LCS1N
K3 D5
SPICS LRDN
L2 C4
SPIDO LWRN
J3 D4
SPIDI LA0
E1
LCK
M4 E4
UARTTX LHS
N3 E3
UARTRX LVS
M1 E2
UARTRTS LACT
L1
UARTCTS R324
H3
HPCMCLK
N14 H1 R325
SCL HPCMFS
P14
SDA
J2 R326
HPCMDO
P2 J1 R327
GPIO0 HPCMDI
M3
GPIO1
R329
P7 N4
GPIO2 AMCLK
N1 M2
GPIO3 ABCLK 33
P1 K2
GPIO4 AFS
R333 NA M5 K1
GPIO5 ADO
N6 L3
GPIO6 ADI
M6
TP303 GPIO7
P5 P3
GPIO8 UDP
N5 P4
GPIO9 UDN
J4 R335 0
UVBUS
G14 P6
TVDATA UID
F13 M7
TVREF URSET
392ohm 1%
3.4K
1%
USB_SELECT_N
4 4 5 5
6 6 7 7 8 8
FL300 ICVE10184E150R500FR
1 9
MMP_LCD_DATA[0] LCD_DATA[0]
INOUT_A1 INOUT_B1
2 8
MMP_LCD_DATA[1] INOUT_A2 INOUT_B2 LCD_DATA[1]
3 7
MMP_LCD_DATA[2] INOUT_A3 INOUT_B3 LCD_DATA[2]
4 6
MMP_LCD_DATA[3] INOUT_A4 INOUT_B4 LCD_DATA[3]
FL301 ICVE10184E150R500FR
1 9
MMP_LCD_DATA[4] LCD_DATA[4]
INOUT_A1 INOUT_B1
2 8
MMP_LCD_DATA[5] INOUT_A2 INOUT_B2 LCD_DATA[5]
3 7
MMP_MICROSD_DATA[0] MMP_LCD_DATA[6] INOUT_A3 INOUT_B3 LCD_DATA[6]
4 6
MMP_MICROSD_DATA[1] MMP_LCD_DATA[7] INOUT_A4 INOUT_B4 LCD_DATA[7]
MMP_MICROSD_DATA[2]
MMP_MICROSD_DATA[3]
MMP_MICROSD_CMD
33
MMP_MICROSD_CLK
FL302 ICVE10184E150R500FR
1 9
MMP_CAM_MCLK MMP_LCD_DATA[8] INOUT_A1 INOUT_B1 LCD_DATA[8]
2 8
MMP_CAM_PCLK MMP_LCD_DATA[9] INOUT_A2 INOUT_B2 LCD_DATA[9]
3 7
MMP_CAM_HSYNC MMP_LCD_DATA[10] INOUT_A3 INOUT_B3 LCD_DATA[10]
4 6
MMP_CAM_VSYNC MMP_LCD_DATA[11] INOUT_A4 INOUT_B4 LCD_DATA[11]
FL303 ICVE10184E150R500FR
1 9
MMP_LCD_DATA[12] INOUT_A1 INOUT_B1 LCD_DATA[12]
2 8
MMP_LCD_DATA[13] INOUT_A2 INOUT_B2 LCD_DATA[13]
3 7
MMP_LCD_DATA[14] INOUT_A3 INOUT_B3 LCD_DATA[14]
4 6
MMP_CAM_DATA[0] MMP_LCD_DATA[15] INOUT_A4 INOUT_B4 LCD_DATA[15]
MMP_CAM_DATA[1]
MMP_CAM_DATA[2]
MMP_CAM_DATA[3]
MMP_CAM_DATA[4]
MMP_CAM_DATA[5]
MMP_CAM_DATA[6]
MMP_CAM_DATA[7]
MMP_LCD_DATA[0]
MMP_LCD_DATA[1]
MMP_LCD_DATA[2]
MMP_LCD_DATA[3]
MMP_LCD_DATA[4]
MMP_LCD_DATA[5]
MMP_LCD_DATA[6]
MMP_LCD_DATA[7]
MMP_LCD_DATA[8]
MMP_LCD_DATA[9]
MMP_LCD_DATA[10]
MMP_LCD_DATA[11]
MMP_LCD_DATA[12]
MMP_LCD_DATA[13]
MMP_LCD_DATA[14]
MMP_LCD_DATA[15]
MMP_LCD_CS_N
LCD LDO
MMP_LCD_RD_N
MMP_LCD_WE_N
MMP_LCD_ADS
TP300
TP301
MMP_LCD_VSYNC_IN
MMP_LCD_VSYNC_OUT
0
MMP_HPCM_CLK
0
MMP_HPCM_FSYNC
0
U300
MMP_HPCM_DO
NA 1
MMP_HPCM_DI LCD_LDO_EN STBY
2
GND
3
MMP_A_MCLK +VPWR VIN
MMP_A_BCLK
MMP_A_LRCLK C329
MMP_ADO_DACDAT 1u
MMP_ADI_ADCDAT
MMP_USB_D+
MMP_USB_D-
VREG_5V
+VPWR
U303
+VPWR 1
VDD
4
NC
6
MMP_PWR_EN CE
C336
0.01u C337
1u
FSUSB30UMX U304
10 1
SEL HSD1+ MSM_USB_D+
9 2
VCC HSD2+ MMP_USB_D+
8 3
_OE D+ USB_D+
7 4
MSM_USB_D- HSD1- GND
6 5
MMP_USB_D- HSD2- D- USB_D-
SWITCH FOR USB2.0
6 6 7 7 8 8
- 173 -
9 9 10 10 11 11
LCD INTERFACE
LCD_VDD_2.8V
C320 C321
VA300
NA 0.1u
ICVN0505X150FR
CN300
1 40
2 39
MMP_LCD_VSYNC_IN
3 38
LCD_MAKER_ID
4 37
LCD_DATA[0] WLED_PWR
5 36
LCD_DATA[1] WLED_1
6 35
LCD_DATA[2] WLED_2
7 34
LCD_DATA[3] WLED_3
8 33
LCD_DATA[4] WLED_4
9 32
LCD_DATA[5] WLED_5
10 31
LCD_DATA[6]
11 30
LCD_DATA[7] LCD_IF_MODE
12 29
LCD_DATA[8] MMP_LCD_ADS
13 28 R314 51
LCD_DATA[9] MMP_LCD_CS_N
14 27 R315 51
LCD_DATA[10] LCD_RESET_N
15 26 R316 51
LCD_DATA[11] MMP_LCD_RD_N
16 25 R317 51
LCD_DATA[12] MMP_LCD_WE_N
17 24
LCD_DATA[13] MMP_LCD_VSYNC_OUT
18 23
R318 0
LCD_DATA[14] OTP Program Pin
19 22
LCD_DATA[15] VA301 LCD_VSYNC_OUT
20 21
C326
22p
ENBY0036001
1.0T, Socket
GB042-40S-H10-E3000
LCD connector change : 35pin ZIF -> 40pin BTB
LCD BACKLIGHT CHARGE PUMP
LCD_VDD_2.8V
150mA
+VPWR
U301 AAT3169IFO-T1
C327 C328
4 7
BH28PB1WHFV
C1+ C2+
5
SEL 1u 1u
6 5 8
BGND C1- C2-
4 6
VOUT OUTCP WLED_PWR
9
C330 IN
11
1u D1 WLED_1
12
D2 WLED_2
3 13
LCD_BL_CTRL EN_SET D3 WLED_3
14
D4 WLED_4
10 1
GND D5 WLED_5
15 2
PGND D6
C332 C333
1u
1u
MMP_VDD_1.9V
R1114D191D-TR-F
3
VOUT
2
GND1
5
GND2
C338
1u
9 9 10 10 11 11
LGE Internal Use Only
12 12
A A
B B
C C
D D
E E
F F
G G
H H
12 12