LG KE820 Service Manual page 122

7. CIRCUIT DIAGRAM
1 2 3
2V72_IO
BLUETOOTH
A
B6 C9
TDO SCL0_P0_13
2V65_BT 1V5_CORE 1V8_MEM VBALUN A7 C8
TDI PCMFR2_SDA0_P0_12
B4 F8 TP105
TMS SLEEPX_P0_15
B7 C2
TCK CLK32_P1_5
A6
TRST_
B9 B1
RTCK WAKEUP_HOST_P1_8
A5 B2
JTAG_ WAKEUP_BT_P1_7
B D1 TP111
RESET_
F1 H5
VDDSUP U102 RFOUT
D2
VDDCREG PMB8753
A8 A4
VDD_1 PAON
B3 A3
VDD_2 PSEL0
F9 B8
VDDC1 PSEL1
B5
VDDC2
G2 A2
VDDPMREG TX_CONF_RXON
H4
VDDRF
E1 F2
VDDRFREG1 VSSVCO
E2 F4
VDDRFREG2 VSSRF1
H1 E5
VDDPLL VSSRF2
J6 F5
VCOCAP1 VSSRF3
H6 E4
VCOCAP2 VSSRF4
C118 C119 C120 C121 C122 C123 C124
0.1u 0.1u 0.1u 0.1u 0.1u 0.01u 1000p
C
R127
1.8nH
BT_CLK
R129
1.8nH
KEY BACKLIGHT LEDS
D
VBAT
U108
C168
0.1u
LD108 LD107 LD106 LD105 LD103 LD102 LD101
E
5 COM
R178
CHG_LED_CTRL
1K
R181 R180
KEY_BACKLIGHT
0
100K
F
KEYPAD
KP_IN(1:4)
100 101 102
KP_IN(1) R143 680
G
103 104 105
KP_IN(2) R144 680
106 107 108
KP_IN(3) R148 680
STAR 109 SHARP
KP_IN(4) R149 680
KP_OUT(0:3)
KP_OUT(0) R151 680
H
KP_OUT(1) R152 680
KP_OUT(2) R153 680
KP_OUT(3) R154 680
1 2 3
4 5 6
1V8_MEM
HANDSET MICROPHONE
L104
C100 C101 C114
MIC1_P
0.1u
100nH
0.1u 0.1u C115
100p
L105
C116
MIC1_N
0.1u
100nH
R120 0
VMICP
R122 0
BT_VCXO_EN
VMICN
CLK32K
C125 C126 C127 C128
27p 27p 10u 100p
_BT_RESET
VBALUN
FL100 ANT100
DBF71B601 FL101
LFB212G45SG8A166
4 1 R128
B2 UB
IN OUT
GND1 GND2 100p
3 2
B1 DC
C161
C133 C134 C135
2p
100p NA NA
USB CHARGING CIRCUIT WITH INDICATE LED
VCHG VBUS_USB 2V72_IO VBAT
D1 KDS121E
R177
2
10K U104 ISL6294
3
1
1 8
VBUS_USB VIN BAT
NO 6 R184 47 2 7
_PPR IREF
NC 4 R131 330 3 6
_USB_EOC _CHG IMIN
4 5
_EN GND
9
PGND
NLAST4599DFT2G C140 R141 R142 C141
LD100
0.1u 220K 39K 0.1u
N.A.
SML-521MUWT86
FM RADIO
2V72_IO 2V85_IO2
R176
0
CLEAR
1 18
GND1 VA
C144 100p 2 17
F100 FM_ANT FMIP GND5
3 16
RF_GND U105 LOUT
C152 4 15
FMIN SI4701 ROUT
5 14
GND2 GND4
NA 6 13
GND3 VD
F101
R150 C147 C148 C157
SEND
10K
0.1u 1u 1u
2V72_IO
U107
TC7SH04FS
VCC 5
C153 0.1u 4 1
GND 2
C155
R182 47K
27p
4 5 6
7 8
2V65_ANA
MIC100
1
OUT
2
G1
3
G2
4
PWR
5
G3
C104 0.1u
MIC2_N
C117 SP0102BE3 C105 0.1u
MIC2_P
VA100 VA101 VA102
100p
C110 C111
27p 27p
MICRO SD SOCKET
MAIN PCB & SUB PCB INTERFACE CONNECTOR
2V85_CARD 2V72_IO
Q1 NTJD4105CT1G
1 S1 D1 6
R130 100K
2 G1 G2 5 R132
TF_PWR_EN
3 D2 S2 4
100K
KP_IN(1:4)
R133 R134 R135 R136 R137
S100
100K 100K 100K 100K 100K SCHA1B0102
DAT2_RSV
TF_DAT2 KP_OUT(0:3)
CD_DAT3_CS
TF_DAT3
CMD_DI
TF_CMD
VDD
CLK_SCLK
TF_CLK
VSS
DAT0_DO
TF_DAT0
DAT1_RSV
TF_DAT1
R183 47 DETECT
TF_DETECT
COMMON
C156 C142 C143
DUMMY1
DUMMY2
1000p 22p 1uF
MULTI-PORT SWITCH 2
2V72_IO
2V85_IO2
U106 NLAS5223BMNR2G
1 10 R157 47
VCC NO2
R156 47 L101 100nH
2 9
RTS_0
NO1 COM2
L102 100nH
3 8 C103 27p
FM_SND_L MULTI_PORT_3 COM1 IN2
FM_SND_R
C113 27p C108 10u
4 7
IN1 NC2
C109 10u
5 6
HS_OUT_R NC1 GND
R185 0
JACK_DETECT
C169 C149
100p 0.1u
C154 0.1u
CLK32K
7 8
- 123 -
9 1 0 11
18PIN MUILTIPORT RECEPTACEL
2V85_IO2
VBUS_USB 2V72_IO 2V65_ANA VCHG
R102
U100
LMV7291MGX-NOPB
1M
5
4 VIN-
R103
1 VCC
HOOK_DETECT
OUT 3 VIN+
GND
47
C102 2
R109 R110
100p
L112 100nH
220K
1.5K
C151 27p
R111 2.2K
L109 100nH
L100 100nH C163 27p
JACK_TYPE
MULTI_PORT_2
C112
MULTI_PORT_3
C165 27p
MULTI_PORT_0
10u C166 27p
MULTI_PORT_1
C164 27p
JACK_DETECT
R116 1K L110 100nH
RPWRON_EN
L111 100nH
R117 NA
DSR
FB102
R118 47
TX_DEBUG
R119 47
RX_DEBUG
FM_ANT
2V65_BT 1V8_MEM 1V5_CORE 2V85_CARD VBAT VCHG 2V65_ANA 2V72_IO VBUS_USB
CN101
G1 G2
1 80
2 79
3 78
4 77
5 76
VMICP
6 75
VMICN
7 74
MIC1_P
8 73
MIC1_N
9 72
TF_PWR_EN
10 71
CHG_LED_CTRL
KP_IN(1) 11 70
KP_IN(2) 12 69
13 68
KP_IN(3)
14 67
KP_IN(4)
15 66
KP_OUT(0) 16 65
17 64
KP_OUT(1)
18 63
KP_OUT(2)
19 62
KP_OUT(3)
20 61
_USB_EOC
21 60
_FM_RESET
22 59
SDA
23
58
SCL
24 57
FM_INT
25 56
26 55
TF_DETECT
27 54
TF_CMD
28 53
TF_CLK
29 52
TF_DAT0
30 51
TF_DAT1
31 50
TF_DAT2
32 49
TF_DAT3
33 48
34 47
KEY_BACKLIGHT
35 46
VBACKUP
36 45
37 44
38 43
39 42
40 41
G3 G4
R168
BACK UP BATTERY 2V 0.5mAh
10K
CTS_0
MULTI_PORT_2
VBACKUP
HS_OUT_L
BAT100
Engineer:
LG Electronics
Drawn by: T.K.CHOI
R&D CHK: W.J.KIM TITLE:
KE820
DOC CTRL CHK:
REV. G
MFG ENGR CHK:
Changed by: Date Changed: Time Changed: QA CHK: REV: Drawing Number:
v1.0
mentor Tuesday, November 22, 2005 5:31:08 pm
9 10 11
12
A
VBAT
CN100
21
19
1
2
3
4
5
6
7 B
8
9
10
11
12
13
14
15
16
17
18
20
22
C
D
2V85_IO2
HOOK_DETECT
MIC2_N
MIC2_P
JACK_TYPE
HS_OUT_L
HS_OUT_R
E
MULTI_PORT_0
MULTI_PORT_1
JACK_DETECT
RPWRON_EN
DSR
RTS_0
CTS_0
FM_SND_L
FM_SND_R
BT_VCXO_EN
CLK32K
_BT_RESET
BT_CLK
TX_DEBUG
RX_DEBUG
USIF_RXD
F
USIF_TXD
I2S1_CLK
I2S1_WA
I2S1_RX
I2S1_TX
G
H
Size:
A3
12 1 8 A
Page:
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