Table of Contents
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7. CIRCUIT DIAGRAM
1
2
3
4
A
B
SDRAM_ADDR(0:14)
SDRAM_DATA(0:31)
C
SDRAM_DATA(31)
T8
A1_22
SDRAM_DATA(30)
T6
A1_21
SDRAM_DATA(29)
T4
A1_20
SDRAM_DATA(28)
R8
A1_19
SDRAM_DATA(27)
T2
A1_18
SDRAM_DATA(26)
T1
A1_17
SDRAM_DATA(25)
R6
A1_16
SDRAM_DATA(24)
R4
A1_15
SDRAM_DATA(23)
W4
GPIO_74
SDRAM_DATA(22)
V6
GPIO_73
SDRAM_DATA(21)
Y2
GPIO_72
SDRAM_DATA(20)
Y1
GPIO_71
SDRAM_DATA(19)
E1
GPIO_70
SDRAM_DATA(18)
R11
GPIO_69
SDRAM_DATA(17)
V4
D
GPIO_68
SDRAM_DATA(16)
U6
GPIO_67
SDRAM_DATA(15)
L6
SDRAM1_D15
SDRAM_DATA(14)
L8
SDRAM1_D14
SDRAM_DATA(13)
K4
SDRAM
SDRAM1_D13
SDRAM_DATA(12)
J1
SDRAM1_D12
SDRAM_DATA(11)
K6
SDRAM1_D11
SDRAM_DATA(10)
J2
SDRAM1_D10
SDRAM_DATA(9)
J4
SDRAM1_D9
SDRAM_DATA(8)
P4
SDRAM1_D8
SDRAM_DATA(7)
H4
SDRAM1_D7
SDRAM_DATA(6)
G2
SDRAM1_D6
SDRAM_DATA(5)
J6
SDRAM1_D5
SDRAM_DATA(4)
AB4
SDRAM1_D4
SDRAM_DATA(3)
D1
SDRAM1_D3
SDRAM_DATA(2)
AB2
SDRAM1_D2
SDRAM_DATA(1)
D2
E
SDRAM1_D1
SDRAM_DATA(0)
E2
SDRAM1_D0
AC15
XMEM2_CS_N1
AF14
LCD_CS_N
LCD_CS_N_GPIO38
AF10
NAND_CLE
UB2_N
W14
NAND_CS_N
XMEM2_CS_N0
AF7
EBI2_OE_N
OE2_N
AF4
EBI2_WE_N
WE2_N
AE10
EBI2_DATA(0:15)
NAND_ALE
LB2_N_A2_0
T14
NAND_READY
NAND2_FLASH_READY_GPIO33
EBI2_DATA(15)
AA10
D2_15
EBI2_DATA(14)
AC9
F
D2_14
EBI2_DATA(13)
W10
D2_13
EBI2_DATA(12)
AA9
D2_12
EBI2_DATA(11)
AE7
D2_11
EBI2_DATA(10)
AC8
D2_10
EBI2_DATA(9)
W9
D2_9
EBI2_DATA(8)
AA8
D2_8
EBI2_DATA(7)
AC7
D2_7
EBI2_DATA(6)
AF5
D2_6
EBI2_DATA(5)
AA7
D2_5
EBI2_DATA(4)
AE5
D2_4
EBI2_DATA(3)
AC6
NAND & LCD
D2_3
EBI2_DATA(2)
AE4
D2_2
EBI2_DATA(1)
AF3
D2_1
EBI2_DATA(0)
AC5
D2_0
C
AF13
(ADS signal for LCD)
LCD_ADS
A2_20_GPIO34
AA14
A2_19
T13
A2_18
AC14
A2_17
AE14
A2_16
W13
A2_15
AC13
A2_14
AA13
A2_13
AF12
A2_12
AE12
A2_11
AC12
A2_10
AA12
A2_9
W12
A2_8
T12
A2_7
AC11
A2_6
AA11
D
A2_5
AC10
A2_4
W11
A2_3
AF9
A2_2
AE9
A2_1
E
KEYPAD
UART
F
1
2
3
4
LG(42)-A-5505-10:01
LGE Internal Use Only
5
6
7
8
HKADC
RESET
1%
AUDIO
REV_1.0
Near to MSM
SDRAM
CLOCK
100K
VREG_MSME_1.8V
1%
C200
47p
R203
C201
47p
REV_B
C204
10p
SDCC_DAT1_GPIO99
SDCC_DAT2_GPIO100
SDCC_DAT3_GPIO101
MDP_VSYNC_SECONDA_GPIO104
MDP_VSYNC_PRIMARY_GPIO105
WDOG_STB_SBCK1_GPIO0
SBDT1_GPIO1
PA_ON1_GPIO2
GRFC9_GPIO12
CAMCLK_PO_GP_MN_GPIO13
GPIO28
USB_RX_DATA_GPIO29
XMEM2_CS_N2_GPIO35
XMEM2_CS_N3_GPIO36
LCD_EN_GPIO37
GPIO43
SYNTH2_GPIO65
GPIO66
XMEM1_CS_N1_GPIO76
XMEM1_CS_N3_SDRAM1_CS_N1_GPIO77
UART3_RFR_N_GPIO87
UART2_DP_RX_DATA_GPIO89
SYNTH0_GP_PDM0_GPIO92
SBST1_GPIO93
TX_AGC_ADJ
TRK_LO_ADJ
TCXO_EN_GPIO94
PA_ON0
Q_OUT_N
Q_OUT
I_OUT_N
DAC_REF
Q_IM_CH1
U201-1
Q_IP_CH1
I_IM_CH1
I_IP_CH1
MSM6245_A
Q_IM_CH0
Q_IP_CH0
I_IM_CH0
I_IP_CH0
GP_PDM2_PA_RAN_GE1
GP_PDM1_PA_RAN_GE0
TRST_N
AUX_PCM_CLK_GRFC14_GPIO80
AUX_PCM_DIN_GRFC13_GPIO14
AUX_PCM_DOUT_GRFC12_GPIO103
AUX_PCM_SYNC_GRFC11_GPIO102
TX_ON_GRFC10
GRFC8_GPIO11
GRFC7_GPIO10
GRFX6_GPIO9
GRFC5_AUX_SBST_GPIO8
GRFC4_AUX_SBCK_GPIO7
GRFC3_GPIO6
GRFC2_GPIO5
GRFC1_AUX_SBDT_GPIO4
GRFC0_GPIO3
BT_CLK_GPIO25
BT_SBST_GPIO24
BT_SBCK_GPIO23
BT_SBDT_GPIO22
BT_TX_RX_N_GPIO21
BT_DATA_GPIO20
MDDIC_DATP
MDDIC_DATN
MDDIC_STBP
MDDIC_STBN
C247
Place near
0.1u
MSM pin AD26
10%
CAMERA
USIM
PMIC
USB
MicroSD
R214
2.2K
R215
2.2K
VREG_CAM_DVDD_2.8V
(Check CAM_DATA PINOUT !!!!)
5
6
7
8
9
10
11
12
MODE2 MODE1
0
0
BOOT_MODE3 BOOT_MODE2 BOOT_MODE1
0
0
0
1
1
0
1
1
1005 0.1uF 16V +80/-20%
2012 10uF 6.3V +80/-20% Ceramic
VREG_MSMC_1.25V
C205
4.7u
Place near
C212
MSM pin W18
0.1u
10%
(CODEC VSS)
C214
C215
0.01u
0.01u
F25
M25
M26
AE3
C222
C223
C225
LCD_MAKER_ID
AD2
LCD_VSYNC
1000p
1000p
0.01u
H25
TP200
WDOG monitoring
F26
H11
D5
J21
CAM_MCLK
A6
LCD_IF_MODE
N19
C232
C233
C234
C235
C236
W15
SUB_LCD_CS_N
1000p
1000p
1000p
1000p
0.01u
AA15
AE13
H9
GPIOs
LCD_RESET_N
B6
F8
AA1
Y6
L25
H6
RCV_EN_N
F18
Close to MSM
H18
FOLDER_DETECT
H13
TX_AGC_ADJ
L13
2K
R213
TRK_LO_ADJ
F19
TCXO_EN
F17
PA_ON
A12
F1
TX_QM
VSS_PAD1_0
B12
K1
TX_QP
VSS_PAD1_1
A13
M1
TX_IM
VSS_PAD1_2
B13
R1
I_OUT
TX_IP
VSS_PAD1_3
F12
U1
DAC_REF
VSS_PAD1_4
W23
AF6
VSS_PAD2_0
V23
RF
AF11
VSS_PAD2_1
V25
AF15
VSS_PAD2_2
W25
AA25
R26
RX_QM
VSS_PAD3_0
Y25
B17
RX_QP
VSS_PAD3_1
AB25
A15
RX_IM
VSS_PAD3_2
AC25
A9
RX_IP
VSS_PAD3_3
A18
VSSA1
D17
A21
VSSA2
H17
D13
PA_R0
VSSA3
D19
VSSA4
H15
P26
VSSA5
D16
U19
TCK
VSSA6
F15
V26
TMS
VSSA7
D15
W16
TDI
VSSA8
JTAG
w18 (Analog VSS guard ring for CODEC)
A17
W18
TDO
VSSA9
H16
W26
RTCK
VSSA10
AB26
VSSA11
K19
AC16
SPK_AMP_EN
VSSA12
N21
AC26
VSSA13
G4
AD25
VSSA14
J8
AF23
VSSA15
H12
AF24
TX_ON
VSSA16
B4
T23
ANT_SEL1
T19
ANT_SEL0
D11
H10
F10
D9
GSM_PA_BAND
A8
GSM_PA_EN
B8
G23
BT_CLK
F23
BT_SBST
E26
BT_SBCK
E25
BT_SBDT
H21
BT_TX_RX_N
R19
BT_DATA
A22
A23
B22
B23
CTS
12
RTS
11
DSR
10
USB_D+
NC4
UTXD
9
USB_D-
URXD
NC3
8
USB_VBUS
NC2
PWR
TP402
7
VBATT
VBAT
VBAT
TP403
6
REMOTE_PWR_ON
ON_SW
ON_SW
5
+5V_PWR
NC1
VCHAR
TP404
4
UART_TXD
TX
TX
TP405
3
UART_RXD
RX
RX
TP406
2
GND
GND
1
2.5G
3G
UART
9
- 140 -
13
14
15
16
MODE
ADC
HKADC(4):PCB_Rev_ADC
MODE0
( Default Pull-Down)
150K : 10K : 0.016V
0
Native, ARM JTAG
HKADC[0] - AMUX_OUT
150K : 47K : 0.62V
HKADC[1] - VBATT_SENSE
HKADC[2] - Hook S/W Detect
150K : 68K : 0.81V
HKADC[3] -
150K : 100K : 1.04V
HKADC[4] - PCB_Rev_ADC
150K : 150K : 1.30V
1
8-bit, NAND, Normal
HKADC[5] - VBATT_TEMP
1
16-bit, NAND, Normal
150K : 300K : 1.73V
1
8-bit, NAND, Trusted
PMIC_AUXIN[1]
150K : 470K : 1.97V
16-bit, NAND, Trusted
1
PMIC_AUXIN[2] - PA_THERM
150K : 680K : 2.13V
150K : 750K : 2.17V
VREG_MSME_1.8V
VREG_MSMP_2.7V
VREG_MSMA_2.6V
(CAD : 10uF=>Input MSMA_2.6V)
C206
C209
10u
0.1uF
C216
0.1uF
C217
C218
C219
C220
C221
0.01u
0.01u
0.1uF
0.1uF
0.1uF
C226
C227
C228
C229
C230
0.01u
0.01u
0.01u
0.1uF
0.1uF
2200p cap => place between
D12(VDDA1) and F12(DAC_REF)
C231
DAC_REF
2200p
C237
C238
C239
C240
C242
1000p
1000p
1000p
0.1uF
0.1uF
Near to B18 (VDD_PLL)
VREG_MSMA_2.6V
C243
C244
0.1u
0.01u
10%
C26
RESERVED
(PLLOUT_TEST)
C1
VSS_DIG_0
H1
VSS_DIG_1
W1
VSS_DIG_2
AC1
VSS_DIG_3
AF8
VSS_DIG_4
AF16
VSS_DIG_5
T26
VSS_DIG_6
G26
VSS_DIG_7
D26
VSS_DIG_8
A24
VSS_DIG_9
A14
VSS_DIG_10
A11
U201-2
VSS_DIG_11
A5
MSM6245_B
VSS_DIG_12
AC23
VSS_DIG
AA21
NC
MSM6280 Reference Rev.B : AA21 -> NC
AC23: VSS_DIG
AA6
VSS39
AC4
VSS41
AE1
VSS43
AE2
VSS44
AE25
VSS45
AE26
VSS46
AF1
VSS47
AF2
VSS48
AF25
VSS49
AF26
VSS50
for VSS_THERMAL
LG Electronics Inc.
LGMC
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
A
B
C
D
E
F
C
D
E
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Troubleshooting
