Circuit Diagram - LG KE520 Service Manual

7. CIRCUIT DIAGRAM

KBC(4:0)
KBR(5:0)
E_DATA(15:0)
E_DATA(0) D21
ELCD_DATA_0
F18
E_DATA(1)
ELCD_DATA_1
E19
E_DATA(2)
ELCD_DATA_2
G18
E_DATA(3)
ELCD_DATA_3
F20
E_DATA(4)
ELCD_DATA_4
H18
E_DATA(5)
ELCD_DATA_5
G19
E_DATA(6)
ELCD_DATA_6
H20
E_DATA(7)
ELCD_DATA_7
H19
E_DATA(8)
ELCD_DATA_8
H21
E_DATA(9)
ELCD_DATA_9
J20
E_DATA(10)
ELCD_DATA_10
J18
E_DATA(11) ELCD_DATA_11
E_DATA(12) J21
ELCD_DATA_12
J19
E_DATA(13) ELCD_DATA_13
E_DATA(14) K21
ELCD_DATA_14
N18
E_DATA(15)
ELCD_DATA_15
R18
WLAN_IRQ ELCD_DATA_16
V21
CHG_EN ELCD_DATA_17
M14
MAIN_CS ELCD_NCS0
M15
DIF_RESET ELCD_NRESET
L15
DIF_ADS ELCD_DNC
K15
DIF_WR ELCD_RNW
D20
DIF_RD ELCD_ESTRB
K14
DIF_VSYNC ELCD_TE
Y16
CAM_2V8_EN GPIO_10
V19
DP_PWON GPIO_18
FDATA(7:0)
V5
FDATA(0) EMIFS_FDATA_0
W4
FDATA(1) EMIFS_FDATA_1
Y3
FDATA(2) EMIFS_FDATA_2
V6
FDATA(3) EMIFS_FDATA_3
AA3
FDATA(4) EMIFS_FDATA_4
W5
FDATA(5)
EMIFS_FDATA_5
Y4
FDATA(6) EMIFS_FDATA_6
AA4
FDATA(7)
EMIFS_FDATA_7
V7
EMIFS_FDATA_8
W6
EMIFS_FDATA_9
AA5
EMIFS_FDATA_10
Y5
EMIFS_FDATA_11
V8
EMIFS_FDATA_12
W7
EMIFS_FDATA_13
Y6
EMIFS_FDATA_14
P9
EMIFS_FDATA_15
R9
EMIFS_FADD_17
Y8
EMIFS_FADD_18
AA7
CAM_1V8_EN EMIFS_FADD_19
W9
EMIFS_FADD_20
R10
HOOK_DETECT EMIFS_FADD_21
V10
WLAN_PWDN EMIFS_FADD_22
AA10
SDIO_D3 EMIFS_FADD_23
W10
DP_IO_ON EMIFS_FADD_24
P10
DIF_IF EMIFS_FADD_25
W11
FRDY EMIFS_FRDY
V11
NFOE EMIFS_NFOE
AA9
EMIFS_NFRP
R12
NFWE EMIFS_NFWE
P12
NFWP EMIFS_NFWP
R11
EMIFS_NFADV
V12
CLE EMIFS_NFBE_0
W12
ALE EMIFS_NFBE_1
Y7
EMIFS_FCLK
V9
NFCS_3 EMIFS_NFCS_3
SADD(12:0)
K7
SADD(0)
SDRAM_SADD0
J8
SADD(1) SDRAM_SADD1
K8
SADD(2) SDRAM_SADD2
J7
SADD(3) SDRAM_SADD3
N8
SADD(4) SDRAM_SADD4
M8
SADD(5)
SDRAM_SADD5
R4
SADD(6) SDRAM_SADD6
N7
SADD(7)
SDRAM_SADD7
M7
SADD(8)
SDRAM_SADD8
P4
SADD(9)
SDRAM_SADD9
L7
SADD(10)
SDRAM_SADD10
M4
SADD(11)
SDRAM_SADD11
U3
SADD(12)
SDRAM_SADD12
SDATA(15:0)
B1
SDATA(0)
SDRAM_SDATA0
M3
SDATA(1)
SDRAM_SDATA1
C1
SDATA(2)
SDRAM_SDATA2
F2
SDATA(3)
SDRAM_SDATA3
C2
SDATA(4) SDRAM_SDATA4
G1
SDATA(5)
SDRAM_SDATA5
D3
SDATA(6) SDRAM_SDATA6
R2
SDATA(7) SDRAM_SDATA7
P2
SDATA(8)
SDRAM_SDATA8
R3
SDATA(9) SDRAM_SDATA9
M2
SDATA(10)
SDRAM_SDATA10
U2
SDATA(11) SDRAM_SDATA11
J1
SDATA(12) SDRAM_SDATA12
N2
SDATA(13) SDRAM_SDATA13
M1
SDATA(14) SDRAM_SDATA14
U1
SDATA(15) SDRAM_SDATA15
K3
SDCLK SDRAM_SDCLK
F4
SDCLK_EN SDRAM_SDCLK_EN
G4
SBANK1 SDRAM_SBANK1
H4
SBANK0 SDRAM_SBANK0
E4
NSRAS SDRAM_NSRAS
H3
NSCAS SDRAM_NSCAS
J3
NSWE SDRAM_NSWE
E3
NSDQMU SDRAM_NSDQMU
F3
NSDQML SDRAM_NSDQML
N4
SDCLKX SDRAM_SDCLKX
L3
DQSH SDRAM_DQSH
J4
DQSL SDRAM_DQSL
K4
SD_CS SDRAM_CS
VRDBB
N.A.
C
OUT
Q100 B
DTC144EM-T2L IN
E
GND
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
C160
C100
C161
15p
C101 C102
3.9p
3.9p 1000p 27p
UART3 :
AA12
B/T Headset
GPIO_19
B/T, PCO Trace Y12
GPIO_43
W21
GPIO_1
J15
GPIO_2
U19
GPIO_4
V20
GPIO_6
W17
GPIO_8
V16
GPIO_9
Y18
GPIO_13
V17
GPIO_16
H10
GPIO_17
G12
GPIO_32
B12
GPIO_46
G13
GPIO_47
H12
MISC_EXT_IRQ
V15
USB_0_SE0
UART1 -> USB AA17
USB_0_DAT
Y17
Download , Mass Storage USB_0_TXEN
W16
USB_0_RCV
A18
I2C1_SDA
C15
I2C2_SCL
V14
ULPDR_CLK32K_IN
T18
ULPDR_ARM_BOOT_EXT
G10
ULPDR_WAKEUP_INT
D14
ULPDR_SYS_CLK_OUT
C16
ULPDR_ON_NOFF
AA19
TSP_ACT0
B13
TSP_ACT2
U103
A5
MCSI2_SYNC
Serial Port Intf. C5
MCSI2_BCLK
B5
MCSI2_DIN
PD761811BZVL Triton external voice codec
D7
MCSI2_DOUT
B7
MCBSP1_CLKX
C7
MCBSP1_FSX
Multimedia audio flow
D8
MCBSP1_DIN
B6
MCBSP1_DOUT
V3
SIM_IO
W1
SIM_CLK
V4
SIM_PWRCTRL
U4
SIM_RST
W3
SIM_PBIAS
U18
SPI_NCS0
Y19
SPI_CLK
W19
SPI_DATA_MISO
V18
SPI_DATA_MOSI
A1
NC1
AA1
NC2
A21
NC3
E5
NC4
Y14
VSSPBIAS
D1
VSS1
E2
VSS2
H2
VSS3
K1
VSS4
P1
VSS5
T3
VSS6
W2
VSS7
AA8
VSS8
AA15
VSS9
AA21
VSS10
Y20
VSS11
U21
VSS12
N19
VSS13
N20
VSS14
M20
VSS15
M19
VSS16
L19
VSS17
K19
VSS18
G21
VSS19
B10
VSS20
D4
VSS21
E21
VSS22
A20
VSS23
A17
VSS24
- 141 -
SLIDE SWITCH
VBAT
VRIO URT100
VRIO
3G 2.5G
1
GND GND
2 TP100
RX RX UART3_RX
3
TP101
SLIDE TX TX UART3_TX
4
VCHAR NC1
5 TP102
C103 C104 ON_SW ON_SW RPWON
6
1u 0.01u VBAT VBAT
7
PWR NC2
8
_FM_RESET URXD NC3
9
_CHG_STAT UTXD NC4
R107 100K 10 TP103
DSR UART3_DSR
R108 100K 11
TP104
RTS UART3_RTS
R109 100K 12
CTS UART3_CTS
R110 100K
VBAT
SLIDE
AMP_EN
USB_BOOT_SEL
BT_NRST
HOOK_EN
FM_INT
MAIN_KEY_BL_EN
TP105
M1
P1_INT2
L2
BOOT_SEL P2_INT2
SPK_EN
A5
CIF_PD TR_USB_DP DP_RXD_MIC_R
A3
JACK_DETECT TR_USB_DM DM_TXD_SPKR_L
D4
ID_USB
A6
VBUS VBUS
C4
SE0_VM_TXD
C3
DAT_VP_RXD
E4
OE_INTN
A2
RCV
R117 2.2K J6
SDA1
R118 2.2K
VRIO M5
SCL1
I2C_SDA PWON
L10
I2C_SCL PWON
H7
RPWON
RPWON
K9
TP106 WAKEUP1
L9
WAKEUP2
M12
PCLKREQ
CLK_32K
TP107 J8
ULPDR_ARMBOOT_EXT MCLK1
K8
MCLK2
R121 1K M11
ONNOFF ONNOFF
R123 10K
VREXTL
D5
R122 TEMP_SENSE ADCIN1
B4
NA JACK_TYPE ADCIN2
A4
ADCIN3
C5
REMOTE_ADC ADCIN4
B5
TSP_ACT2 BATT_TEMPS ADCIN5
U102
M6
STARTADC
M3 T3029FZQWR
VSP_VFS
L3
VSP_VCK
M2
VSP_VDX
L4
VSP_VDR
M4
I2S_SCK
L5
I2S_WS
H6
I2S_SDX
K5
I2S_SDR
F5
NC1
G5
NC2
G6
NC3
K7
GND_PWR1
B11
GND_PWR21
C10
SIM_IO GND_PWR22
L6
SIM_CLK GND_PWR3
B3
SIM_PWRCTRL GND_PWR4
D11
SIM_RST GND_PWR5
B7
GND_VBUS2
C7
GND_VBUS1
G9
GND_DBB1
F8
VBAT
GND_DBB2
F9
GND_DBB3
SDIO_D2
H10
SDIO_CLK VCC11
H11
SDIO_D1 VCC12
H12
SDIO_D0 C125 VCC13
L7
1000p VCC21
L8
VCC22
B2
VCC3
F10
VCC41
F11
VCC42
E10
VCC51
E11
VCC52
A7
C126
VCC6
ULPDR_ARMBOOT_EXT 10u
R126
100K
VREXTL
VREXTH
VRMMC
VRSIM
VRUSB
L102 2.2uH
VRRTC
VRIO
VRABB
VRMEM
VRPLL
C128 C129
4.7u 4.7u
Domain Voltage(V) Current(mA)
VRABB 2.8 80
VRRTC 1.8 20
VRDBB
VRUSB 3.3 15
VRSIM 1.8 / 2.85 15
VRMMC 1.8 / 2.85
100(EXTERNAL PULL UP RES ELIMINATION)
VRDBB 1.4 - 0.95 850
VRPLL 1.3 / 1.4 / 1.05 10
VRMEM 1.8 200
VRIO 1.8 200
VRIO
VREXTH 1.8 / 200@1.8V
2.8 100@2.8V
VREXTL 1.3/1.05 200@1.3V
1.8 / 2.8 100@1.8~2.8V
VBUS VCHG VBAT VRIO
U101 ISL6299
1 10
CRDL BAT
2
USB
R106
6 3
1
IMIN _PPR
4
_CHG _CHG_STAT
9
ICDL
7 8
USBON GND
5 11
CHG_EN _EN PGND
C105 C106 C107
R113
1u 1 uF 100K 1u
2
3
X100
MC-146_7pF
32.768KHz
4 1
C108 9p
L12
OSC32KIN
C109 8p
L11 R116 220K
OSC32KOUT
C110 10p
K11
CLK32KOUT CLK_32K
A12
LED_A LED_A
B12
LED_B
C12
LED_C
M10
VIBDR VIBRATOR
D10
CKEN SYSCLKEN
C11
REGEN REGEN
E8
HSDET
R119 1K
K6
BM_SEL
E7
BM_SGMODE
K10
VMODE
G7
PWROK
E9
PM_D
F7
PM_C
J9
PM_F
VCHG
C112 0.1u
J11
VBG
J10 R120 121K
IREF
J12
REFGND
H8
VBACKUP VBACKUP
B8
VAC
A9
PCHGAC
A8
PCHGUSB
D7
VCCS
A10
VBAT
VBAT
D8
VBATS VBATS
C9
ICTLUSB1
D9
ICTLUSB2
C8
ICTLAC1
B9
ICTLAC2
D2 C113 0.1u
MICIN MIC_ABB_N
D1 C114 0.1u
MICIP MIC_ABB_P
C1
HSMIC HSMICIP
E3
MICBIAS MICBIAS
E2
HSMICBIAS HSMICBIAS C115
C2
AUXI_FMR RADIO_R 100p
D3
FML RADIO_L
G2
EARN RCV_N
G1
EARP RCV_P L100
F3 100nH
AUXO
F1 C116 100u
HSOL HSOL
E1 C117 100u
HSOR HSOR
F2 L101
HSOVMID
F4
100nH
AUDVMID
R124 15K C118 47n
L1
FILTERAPLL C121 C122
C123 C119
27p 27p
G3 C120 4.7n
SPKPA1 4.7u 47p
G4
SPKPA2 SPKPA
K3
SPKNA1 SPKNA
K4
SPKNA2
H1
SPKPD1
H2
SPKPD2
J1 VBAT
SPKND1 C124
J2
SPKND2 10u
J3
SPKVDD2
H3
SPKVDD1
H4
SPKGND2
J4
SPKGND1
K1
TMS
J5
TDO
H5
TDI ON BOARD JTAG INTERFACE
K2
TCK
H9
TESTRESET
E6 R125
TESTV
10K
J7
SIMDTC
VRIO
JTG100
VCC
GND
JTAG_TCK TCK
JTAG_TDO TDO
JTAG_TDI TDI
JTAG_TMS TMS
JTAG_TRST TX
JTAG_RTCK RX
C127
10u
KE520
LGE Internal Use Only