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7. CIRCUIT DIAGRAM
1
2
3
A
< USB 48M CLK >
USB_XTAL_IN
USB_XTAL_OUT
B
SDRAM_ADDR(0:14)
SDRAM_DATA(0:31)
C
SDRAM_DATA(31)
T8
SDRAM1_D[31]
SDRAM_DATA(30)
T6
SDRAM1_D[30]
SDRAM_DATA(29)
T4
SDRAM1_D[29]
SDRAM_DATA(28)
R8
SDRAM1_D[28]
SDRAM_DATA(27)
T2
SDRAM1_D[27]
SDRAM_DATA(26)
T1
SDRAM1_D[26]
SDRAM_DATA(25)
R6
SDRAM1_D[25]
SDRAM_DATA(24)
R4
SDRAM1_D[24]
SDRAM_DATA(23)
W4
SDRAM1_D[23]
SDRAM_DATA(22)
V6
SDRAM1_D[22]
SDRAM_DATA(21)
Y2
SDRAM1_D[21]
SDRAM_DATA(20)
Y1
SDRAM1_D[20]
SDRAM_DATA(19)
W2
SDRAM1_D[19]
SDRAM_DATA(18)
W1
SDRAM1_D[18]
SDRAM_DATA(17)
V4
D
SDRAM1_D[17]
SDRAM_DATA(16)
U6
SDRAM1_D[16]
SDRAM_DATA(15)
L6
SDRAM1_D[15]
SDRAM_DATA(14)
L8
SDRAM1_D[14]
SDRAM_DATA(13)
K4
SDRAM1_D[13]
SDRAM_DATA(12)
J1
SDRAM1_D[12]
SDRAM_DATA(11)
K6
SDRAM1_D[11]
SDRAM_DATA(10)
J2
SDRAM1_D[10]
SDRAM_DATA(9)
J4
SDRAM1_D[9]
SDRAM_DATA(8)
H1
SDRAM1_D[8]
SDRAM_DATA(7)
H4
SDRAM1_D[7]
SDRAM_DATA(6)
G2
SDRAM1_D[6]
SDRAM_DATA(5)
J6
SDRAM1_D[5]
SDRAM_DATA(4)
J8
SDRAM1_D[4]
SDRAM_DATA(3)
H6
SDRAM1_D[3]
SDRAM_DATA(2)
G4
SDRAM1_D[2]
SDRAM_DATA(1)
E1
E
SDRAM1_D[1]
SDRAM_DATA(0)
F4
SDRAM1_D[0]
AA14
SUBLCD_CS_N
XMEM2_CS_N[1]
AF14
LCD_CS_N
LCD2_CS_N_GPIO[38]
AE4
NAND_CLE
NAND2_CLE_UB2_N
W14
NAND_CS_N
NAND2_CS_N_XMEM2_CS_N[0]
AF7
EBI2_OE_N
OE2_N_NAND2_RE_N
AF4
EBI2_WE_N
WE2_N
AC5
NAND_ALE
LB2_N_NAND2_ALE_A2[0]
AE16
EBI2_DATA(0:15)
NAND_READY
NAND2_FLASH_READY_GPIO[33]
EBI2_DATA(15)
AC9
EBI2_DATA[15]
EBI2_DATA(14)
AF8
F
EBI2_DATA[14]
EBI2_DATA(13)
AE8
EBI2_DATA[13]
EBI2_DATA(12)
AC8
EBI2_DATA[12]
EBI2_DATA(11)
AE7
EBI2_DATA[11]
EBI2_DATA(10)
AA9
EBI2_DATA[10]
EBI2_DATA(9)
W9
EBI2_DATA[9]
EBI2_DATA(8)
AA8
EBI2_DATA[8]
EBI2_DATA(7)
AC7
EBI2_DATA[7]
EBI2_DATA(6)
AF5
EBI2_DATA[6]
EBI2_DATA(5)
AC6
EBI2_DATA[5]
EBI2_DATA(4)
AE5
EBI2_DATA[4]
EBI2_DATA(3)
AA7
EBI2_DATA[3]
EBI2_DATA(2)
AF3
EBI2_DATA[2]
EBI2_DATA(1)
AD1
EBI2_DATA[1]
EBI2_DATA(0)
AB4
EBI2_DATA[0]
C
AA15
LCD_ADS
EBI2_ADD[20]_GPIO[34]
AC13
EBI2_ADD[19]
AF13
EBI2_ADD[18]
AE13
EBI2_ADD[17]
AA13
EBI2_ADD[16]
W13
EBI2_ADD[15]
T13
EBI2_ADD[14]
AC12
EBI2_ADD[13]
AA12
EBI2_ADD[12]
AF11
EBI2_ADD[11]
AE11
EBI2_ADD[10]
W12
EBI2_ADD[9]
AC11
EBI2_ADD[8]
AA11
EBI2_ADD[7]
W11
EBI2_ADD[6]
AC10
D
EBI2_ADD[5]
AF9
EBI2_ADD[4]
AA10
EBI2_ADD[3]
AE9
EBI2_ADD[2]
W10
EBI2_ADD[1]
E
F
1
2
3
LG(42)-A-5505-10:01
4
5
6
7
8
PCB_Rev_ADC
680K : 10K - 2.66V (Ver.A~B)
680K : 51K - 2.51V (Ver.C)
680K : 150K - 2.21V (Ver.D)
680K : 240K - 2.00V (Ver.E)
R200
R201
VREG_MSMP_2.7V
680K
1%
240K
1%
C227
Close to MSM
H25
SBCK1_GPIO[0]
G26
SBDT1_GPIO[1]
A19
PA_ON[1]_GPIO[2]
D5
ANT_SEL3_N_GPIO[12]
H21
GP_MN_GPIO[13]
A5
GPS_TCXO_GPIO[28]
N23
USB_RX_DATA_GPIO[29]
AC15
XMEM2_CS_N[2]_GPIO[35]
AF16
XMEM2_CS_N[3]_GPIO[36]
T14
LCD2_EN_GPIO[37]
H9
ETM_PIPESTAT1B_GPIO[43]
D18
ETM_TRACESYNC_GPIO[65]
F8
BACKLIGHT_ETM_TRACECLK_GPIO[66]
AB1
XMEM1_CS_N[1]_GPIO[76]
Y6
SDRAM1_CS_N[1]_XMEM1_CS_N[3]_GPIO[77]
L25
UART3_RFR_N_GPIO[87]
C1
UART2_DP_RX_DATA_USIM_PWR_EN_GPIO[89]
F19
GP_PDM[0]_GPIO[92]
H18
SBST1_GPIO[93]
L14
TX_AGC_ADJ
H14
TRK_LO_ADJ
F18
TCXO_EN_GPIO[94]
B19
PA_ON[0]
A13
Q_OUT_N
B13
Q_OUT
A14
I_OUT_N
B14
I_OUT
U21
Q_IM_CH1(Reserved)
U23
Q_IP_CH1(Reserved)
V25
I_IM_CH1(Reserved)
W26
I_IP_CH1(Reserved)
Y25
U201-1
Q_IM_CH0
Y26
MSM6250A_3_A
Q_IP_CH0
V21
I_IM_CH0
W21
I_IP_CH0
A20
PA_RANGE[1]_GP_PDM[2]
H17
PA_RANGE[0]_GP_PDM[1]
H15
TRST_N
D16
TCK
F15
TMS
D15
TDI
F16
TDO
H16
RTCK
J25
GRFC[14]_GPIO[83]
K23
GRFC[13]_GPIO[82]
J26
GRFC[12]_GPIO[81]
K19
GRFC[11]_GPIO[80]
H12
GRFC[10]_TX_ON
B4
ANT_SEL2_N_GPIO[11]
T23
ANT_SEL1_N_GPIO[10]
R19
ANT_SEL0_N_GPIO[9]
D11
TX_VCO_0_EN_N_GPIO[8]
H10
TX_VCO_1_EN_N_GPIO[7]
F10
UHF_BAND_SEL_GPIO[6]
D9
GSM_PA_BAND_GPIO[5]
A8
GSM_PA_EN_GPIO[4]
B8
UHF_VCO_0_EN_GPIO[3]
G23
BT_CLK_GPIO[25]
F23
BT_SBST_GPIO[24]
E26
BT_SBCK_GPIO[23]
E25
BT_SBDT_GPIO[22]
G21
BT_TX_RN_N_GPIO[21]
D26
BT_DATA_GPIO[20]
C247
0.1u
4
5
6
7
8
- 136 -
9
10
11
12
MICFBP
MICINN
180K
MICOUTP
C202
0.1u
0.1u
C203
R202
470K
R205
180K
MICOUTN
0.1u
C225
0.1u
C226
R207
MICINP
MICFBN
LCD_MAKER_ID
LCD_LDO_EN
IrDA_EN
TP201
LCD_RESET_N
HOOK_SW_N
EAR_SENSE_N
A1
CAM_FLASH_EN
NC
A2
IrDA_SD
NC
A25
CAM_P_DOWN
NC
A26
ON_SW_N
NC
B1
CAM_PWR_EN
NC
B2
LCD_IF_MODE
NC
B3
STEREO_DET_N
NC
B24
LCD_BACK_EN
NC
B25
TP202
NC
B26
NC
R212
1K
C2
TX_AGC_ADJ
NC
R213
2K
C25
TRK_LO_ADJ
NC
TP203
D4
TCXO_EN
NC
D23
PA_ON
C245
C246
NC
F6
0.01u
33nF
NC
F21
TX_QM
NC
H8
TX_QP
NC
H19
TX_IM
NC
Close to MSM
K10
TX_IP
NC
L11
NC
L12
NC
L16
NC
L15
NC
M11
NC
M12
RX_QM
NC
M13
RX_QP
NC
M14
RX_IM
VREG_MSMP_2.7V
NC
M15
RX_IP
NC
M16
NC
N12
NC
N13
NC
N14
PA_R0
NC
N15
NC
P12
JTAG_TRST_N
NC
P13
JTAG_TCK
NC
JTAG_TMS
JTAG_TDI
JTAG_TDO
JTAG_RTCK
SPK_AMP_EN
RCV_EN
FOLDER_DETECT_N
RF_ON_TX_ON
ANT_SEL2
ANT_SEL1
ANT_SEL0
GSM_TX_VCO_0_EN_N
GSM_TX_VCO_1_EN_N
GSM_PA_BAND
GSM_PA_EN
B_LED_EN
G_LED_EN
R_LED_EN
Approved
9
13
14
15
16
C210
C211
0.1u
0.01u
C206
10u
C230
C231
C232
C233
C234
0.1u
0.01u
0.1u
0.1u
0.1u
C237
C238
C239
C240
C241
Close to MSM
0.1u
0.1u
0.01u
0.1u
0.1u
DAC_REF
P14
NC
P15
NC
R11
NC
R12
NC
R13
NC
R14
NC
R15
NC
R16
NC
T11
NC
T12
NC
T15
NC
T16
NC
U25
NC
W8
NC
W19
U201-2
NC
AA6
MSM6250A_3_B
NC
AA21
NC
AA25
NC
MODE_1
AC4
NC
AC23
NC
AD2
NC
AD25
NC
AE1
NC
AE2
NC
AE3
NC
AE17
NC
WDOG_EN
AE21
NC
BOOT_MODE
AE24
NC
AE25
NC
AE26
NC
AF1
NC
AF2
NC
AF25
NC
AF26
NC
Section
Date
Sign & Name
Sheet/
Sheets
D2
MODEL
Designer
06/29/2006
Checked
DRAWING
MSM6250A
NAME
DRAWING
LG Electronics Inc.
Rev_1.0
NO.
LG Electronics Inc.
A
B
C
D
E
F
C
D
E
2/6
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Troubleshooting
