LG TU550 Service Manual page 141

7. CIRCUIT DIAGRAM
1 1 2 2 3 3
( +/- 50ppm for USB OTG )
USB_XTALIN
A A
USB_XTALOUT
B B
SDRAM_ADDR(0:14)
SDRAM_DATA(0:31)
C C SDRAM_DATA(0:31)
T8
SDRAM_DATA(31)
SDRAM1_D31
T6
SDRAM_DATA(30)
SDRAM1_D30
T4
SDRAM_DATA(29) SDRAM1_D29
R8
SDRAM_DATA(28) SDRAM1_D28
T2
SDRAM_DATA(27) SDRAM1_D27
T1
SDRAM_DATA(26) SDRAM1_D26
R6
SDRAM_DATA(25) SDRAM1_D25
R4
SDRAM_DATA(24) SDRAM1_D24
W4
SDRAM_DATA(23) SDRAM1_D23
V6
SDRAM_DATA(22) SDRAM1_D22
Y2
SDRAM_DATA(21)
SDRAM1_D21
Y1
SDRAM_DATA(20)
SDRAM1_D20
E1
SDRAM_DATA(19)
D D SDRAM1_D19
R11
SDRAM_DATA(18) SDRAM1_D18
V4
SDRAM_DATA(17) SDRAM1_D17
U6
SDRAM_DATA(16) SDRAM1_D16
L6
SDRAM_DATA(15) SDRAM1_D15
L8
SDRAM_DATA(14) SDRAM1_D14
K4
SDRAM_DATA(13) SDRAM1_D13
J1
SDRAM_DATA(12) SDRAM1_D12
SDRAM_DATA(11) K6
SDRAM1_D11
SDRAM_DATA(10) J2
SDRAM1_D10
J4
SDRAM_DATA(9)
SDRAM1_D9
P4
SDRAM_DATA(8)
SDRAM1_D8
H4
SDRAM_DATA(7)
SDRAM1_D7
G2
SDRAM_DATA(6)
SDRAM1_D6
J6
SDRAM_DATA(5) SDRAM1_D5
AB4
SDRAM_DATA(4) SDRAM1_D4
D1
E E SDRAM_DATA(3) SDRAM1_D3
AB2
SDRAM_DATA(2) SDRAM1_D2
D2
SDRAM_DATA(1) SDRAM1_D1
E2
SDRAM_DATA(0) 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(0:15)
F F
EBI2_DATA(15) AA10
D2_15
AC9
EBI2_DATA(14)
D2_14
W10
EBI2_DATA(13)
D2_13
AA9
EBI2_DATA(12)
D2_12
AE7
EBI2_DATA(11)
D2_11
AC8
EBI2_DATA(10)
D2_10
W9
EBI2_DATA(9) D2_9
AA8
EBI2_DATA(8) D2_8
AC7
EBI2_DATA(7) D2_7
AF5
EBI2_DATA(6) D2_6
AA7
EBI2_DATA(5) D2_5
AE5
EBI2_DATA(4) D2_4
AC6
EBI2_DATA(3) D2_3
AE4
EBI2_DATA(2)
D2_2
AF3
EBI2_DATA(1)
D2_1
AC5
EBI2_DATA(0)
C C D2_0
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
D D A2_7
AC11
A2_6
AA11
A2_5
AC10
A2_4
W11
A2_3
AF9
A2_2
AE9
A2_1
E E
F F
1 1 2 2 3 3
LG(42)-A-5505-10:01 LG(42)-A-5505-10:01
LGE Internal Use Only
4 4 5 5 6 6 7 7 8 8
WDOG_EN (1:Enable , 0:Disable)
Default Pull-up
VREG_MSMP_2.7V VREG_MSMP_2.7V VREG_MSMP_2.7V
AA2 : Input pin pull-down?
TP204
SDCC_DAT1_GPIO99
SDCC_DAT2_GPIO100
SDCC_DAT3_GPIO101
MDP_VSYNC_SECONDA_GPIO104
MDP_VSYNC_PRIMARY_GPIO105
WDOG_STB_SBCK1_GPIO0
CAMCLK_PO_GP_MN_GPIO13
USB_RX_DATA_GPIO29
XMEM2_CS_N2_GPIO35
XMEM2_CS_N3_GPIO36
XMEM1_CS_N1_GPIO76
XMEM1_CS_N3_SDRAM1_CS_N1_GPIO77
UART3_RFR_N_GPIO87
UART2_DP_RX_DATA_GPIO89
SYNTH0_GP_PDM0_GPIO92
U200-1
MSM6275_A
GP_PDM2_PA_RANGE1
GP_PDM1_PA_RANGE0
AUX_PCM_CLK_GRFC14_GPIO80
AUX_PCM_DIN_GRFC13_GPIO14
AUX_PCM_DOUT_GRFC12_GPIO103
AUX_PCM_SYNC_GRFC11_GPIO102
GRFC5_AUX_SBST_GPIO8
GRFC4_AUX_SBCK_GPIO7
GRFC1_AUX_SBDT_GPIO4
BT_TX_RX_N_GPIO21
C149
0.1u
10%
(Check CAM_DATA PINOUT !!!!)
4 4 5 5 6 6 7 7 8 8
9 9 10 10 11 11 12 12
MICFBN
MICINP
10% 10%
R100 0.1u C100 0.1u C101
MICOUTN
180K MODE2 MODE1
0.015u C103 0
0
R102
BOOT_MODE2
470K
0.015u C104 X
0
10% 10% 1
R111
0.1u C106 0.1u C107
MICOUTP BOOT_MODE3
180K
0
MICINN
1
1005 0.1uF 16V +80/-20%
MICFBP
Place close to MSM 2012 10uF 6.3V +80/-20% Ceramic
under same Shield
VREG_MSMC_1.375V
C108 C109
4.7u
0.01u
Place near
C115
MSM pin W18
0.1u
10% (CODEC VSS)
C116 C117 C118
0.01u 0.01u 0.01u
F25
M25
M26
AE3
HF_N C123 C124 C125 C126
AD2 TP401
HDET_BAND_SEL 1000p 1000p 1000p 0.01u
H25 R190 100K
HDET_EN
F26
SBDT1_GPIO1
H11
PA_ON1_GPIO2 PA_ON1 (WCMDA 800 PAM enable)
D5
GRFC9_GPIO12
J21
CAM_MCLK
A6
GPIO28 LCD_IF_MODE
N19
LCD_LDO_EN C134 C135 C136 C137
W15
1000p 1000p 1000p 0.01u
AA15
MMC_CD
AE13
LCD_EN_GPIO37 EAR_SENSE_N
H9
GPIO43 FOLDER_DETECT
B6
SYNTH2_GPIO65 HOOK_SENSE_N
F8
GPIO66 KEY_COL(6)
AA1
Y6
L25
H6
F18
SPK_AMP_EN
H18 Near to MSM
SBST1_GPIO93 UART_RFR_N
H13
1K R118
TX_AGC_ADJ TX_AGC_ADJ
L13
TRK_LO_ADJ 2K R119 TRK_LO_ADJ
F19 TP201
TCXO_EN_GPIO94 TCXO_EN
F17
PA_ON0 PA_ON0 C146 C147
(WCMDA 1900PAM Enable) 0.01u 0.033u
A12 F1
Q_OUT_N TX_Q_M VSS_PAD1_0
B12 K1
Q_OUT TX_Q_P VSS_PAD1_1
A13 M1
I_OUT_N TX_I_M VSS_PAD1_2
B13 R1
I_OUT TX_I_P VSS_PAD1_3
F12 U1
DAC_REF DAC_REF VSS_PAD1_4
W23 AF6
Q_IM_CH1 VSS_PAD2_0
V23 AF11
Q_IP_CH1 VSS_PAD2_1
V25 VREG_MSMP_2.7V AF15
I_IM_CH1 VSS_PAD2_2
W25
I_IP_CH1
AA25 R26
Q_IM_CH0 RX0_Q_M VSS_PAD3_0
Y25 B17
Q_IP_CH0 RX0_Q_P VSS_PAD3_1
AB25 A15
I_IM_CH0 RX0_I_M VSS_PAD3_2
AC25 A9
I_IP_CH0 RX0_I_P VSS_PAD3_3
A18
VSSA1
D17 A21
VSSA2
H17 D13
PA_R0 VSSA3
D19
VSSA4
H15 P26
TRST_N JTAG_TRST_N VSSA5
D16 U19
TCK JTAG_TCK VSSA6
F15 V26
TMS JTAG_TMS VSSA7
D15 W16
TDI JTAG_TDI VSSA8
A17 W18 w18 (Analog VSS guard ring for CODEC)
TDO JTAG_TDO VSSA9
H16 W26
RTCK JTAG_RTCK VSSA10
AB26
VSSA11
K19 AC16
LCD_RESET_N VSSA12
N21 AC26
VSSA13
G4 AD25
VSSA14
J8 AF23
VSSA15
H12 AF24
TX_ON_GRFC10 TX_ON VSSA16
B4
GRFC8_GPIO11 ANT_SEL2
T23
GRFC7_GPIO10 ANT_SEL1
T19
GRFX6_GPIO9 ANT_SEL0
D11
GSM_TX_VCO_0_EN_N
H10
GSM_TX_VCO_1_EN_N
F10
GRFC3_GPIO6 UHF_BAND_SEL
D9
GRFC2_GPIO5 GSM_PA_BAND
A8
GSM_PA_EN
B8
GRFC0_GPIO3 UHF_VCO_0_EN
G23
BT_CLK_GPIO25 BT_CLK
F23
BT_SBST_GPIO24 BT_SBST
E26
BT_SBCK_GPIO23 BT_SBCK
E25
BT_SBDT_GPIO22 BT_SBDT
H21
BT_TX_RX_N
R19
BT_DATA_GPIO20 BT_DATA
A22
MDDIC_DATP
A23
MDDIC_DATN
B22
MDDIC_STBP
B23
MDDIC_STBN
Section Section
Designer Designer
Checked Checked
Approved Approved
Place near
MSM pin AD26
9 9
- 142 -
13 13 14 14 15 15 16 16
MODE
ADC HKADC(5):PCB_Rev_ADC
MODE0 ( Default Pull-Down)
150K : 10K : 0.016V
0 0 Native, ARM JTAG HKADC[0] - AMUX_OUT
150K : 47K : 0.62V A A
1 0 Native, MSM JTAG HKADC[1] - VBATT_SENSE
HKADC[2] - HDET1 150K : 68K : 0.81V
BOOT_MODE
HKADC[3]
150K : 100K : 1.04V
0 NOR boot HKADC[4] - PCB_Rev_ADC
150K : 150K : 1.30V
1 8-bit, NAND boot HKADC[5] - CHARGER_THERM
150K : 300K : 1.73V
1 16-bit, NAND boot
PMIC_AUXIN[1] 150K : 470K : 1.97V
PMIC_AUXIN[2] - PA_THERM
150K : 680K : 2.13V
Normal boot
150K : 750K : 2.17V
Trusted boot
VREG_MSME_1.8V VREG_MSMP_2.7V VREG_MSMA_2.6V
B B
(CAD : 10uF=>Input MSMA_2.6V)
C110 C113 C114
10u
0.1uF 0.1uF
C119
0.1uF C120 C121 C122
0.1uF 0.1uF 0.1uF
C C
C127 C128 C129 C130 C131
0.01u 0.01u 0.01u 0.1uF 0.1uF 2200p cap => place between
D12(VDDA1) and F12(DAC_REF)
DAC_REF
C138 C139 C140 C141 C142 C143
1000p 1000p 1000p 0.1uF 0.1uF 0.1uF D D
Near to B18 (VDD_PLL)
VREG_MSMA_2.6V
R117
0
C144 C145
0.1u 0.01u
10%
E E
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
U200-2 VSS_DIG_9
A14
MSM6275_B VSS_DIG_10 F F
A11
VSS_DIG_11
A5
VSS_DIG_12
AA6
VSS40
AA21
VSS41
AC4
VSS42
AC23
VSS43
AE1
VSS44
AE2
VSS45
AE25
VSS46
AE26
VSS47
AF1
VSS48
AF2
VSS49
AF25
VSS50
AF26
VSS51 C C
for VSS_THERMAL
D D
E E
Date Date Sign & Name Sign & Name Sheet/ Sheet/
Sheets Sheets
10/31 TU550
CU500 CU500
MODEL MODEL
SH NAM SH NAM
2005 2005
2/6 2/6
DRAWING DRAWING
MSM6275
NAME NAME
DRAWING DRAWING
LG Electronics Inc. LG Electronics Inc. MAIN_1.2
NO. NO.
LG Electronics Inc. LG Electronics Inc.
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes