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T.K.CHOI
F
DOC CTRL CHK:
5
7
3
MULTI-PORT SWITCH 2
6
8
v1.0
18PIN MUILTIPORT RECEPTACEL
MFG ENGR CHK:
REV. G
1608
9
1
0
5
8
N.A.
1
B
D
1608
Drawn by:
D
QA CHK:
2
A
Size:
12
H
G
Page:
7
USB CHARGING CIRCUIT WITH INDICATE LED
E
KEYPAD
W.J.KIM
G
Engineer:
MICRO SD SOCKET
LG Electronics
11
Time Changed:
B
BACK UP BATTERY 2V 0.5mAh
Drawing Number:
2
FM RADIO
R&D CHK:
12
TITLE:
4
E
10
H
MAIN PCB & SUB PCB INTERFACE CONNECTOR
3
HANDSET MICROPHONE
Date Changed:
1
F
5:31:08 pm
Tuesday, November 22, 2005
mentor
1/5
KE820
12 1 8 A
A3
A
C
Changed by:
4
11
9
6
BLUETOOTH
REV:
C
KEY BACKLIGHT LEDS
0.1u
C100
R109
1.5K
VA100
C161
2p
R185
0
1V8_MEM
SP0102BE3
MIC100
G1
2
3
G2
5
G3
1
OUT
PWR
4
VD
VIO
12
7
_RST
_SEN
8
FB100
14
17
GND5
GND6
24
21
GPIO1
GPIO2
20
19
GPIO3
LOUT
16
NC1
22
23
NC2
25
PGND
11
RCLK
3
RF_GND
15
ROUT
9
SCLK
SDIO
10
VA
18
13
SI4701
U105
FMIN
4
FMIP
2
1
GND1
5
GND2
GND3
6
GND4
VBUS_USB
47
R162
100nH
L105
C101
C165
27p
0.1u
ZD4
103
1V8_MEM
0.1u
C154
R141
220K
330
1000p
2V72_IO
R131
C104
C156
0.1u
R129
1.8nH
2V85_CARD
R135
100K
C152
NA
C109
10u
COM1
3
COM2
9
6
GND
4
IN1
8
IN2
NC1
5
7
NC2
2
NO1
10
NO2
1
VCC
U106 NLAS5223BMNR2G
27p
LD102
C126
R142
39K
C103
27p
L108
10u
100nH
C112
100K
R137
C153
0.1u
R163
47
1K
R116
0.1u
C119
ZD3
C155
27p
680
R143
R132
100K
NA
R117
1u
L110
100nH
47
R160
C148
CLEAR
100p
C115
73
74
75
76
77
78
79
8
80
9
G1
G2
G3
G4
59
6
60
61
62
63
64
65
66
67
68
69
7
70
71
72
44
45
46
47
48
49
5
50
51
52
53
54
55
56
57
58
3
30
31
32
33
34
35
36
37
38
39
4
40
41
42
43
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
CN101
1
10
11
12
13
14
R108
47K
102
R150
10K
VCHG
0.1u
C118
C128
104
100p
100K
R180
2.2u
C129
C130
100p
47
R119
D1 6
3 D2
G1
2
5
G2
1 S1
S2
4
NTJD4105CT1G
Q1
C151
108
27p
FB102
L104
100nH
KDS121E
3
1
2
D1
ZD6
ZD5
0.1u
C131
C102
100p
CMD_DI
COMMON
DAT0_DO
DAT1_RSV
DAT2_RSV
DETECT
DUMMY1
DUMMY2
VDD
VSS
SCHA1B0102
S100
CD_DAT3_CS
CLK_SCLK
3
4
5
6
7
8
9
101
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
CN100
100nH
L111
109
1uF
C143
VBAT
L112
100nH
2V85_IO2
BAT100
C134
NA
100p
C144
TP105
FB101
100
27p
C167
C122
C157
1u
0.1u
R144
680
R110
220K
2V85_CARD
2
GND
1
4
5
VCC
47
R103
U107
TC7SH04FS
VBACKUP
STAR
2V72_IO
UB
27p
C166
DBF71B601 FL101
3
B1
4
B2
DC
2
5
G1
6
G2
1
R118
47
680
R153
VBAT
R184
47
R120
0
680
R149
100K
R134
0.1u
C147
27p
1V5_CORE
VBUS_USB
C111
27p
C110
F101
C123
0.01u
100K
R136
100nH
L100
VBAT
L113
100nH
0.1u
C121
NA
C135
U104
ISL6294
BAT
8
GND
5
6
IMIN
7
IREF
PGND
9
1
VIN
_CHG
3
4
_EN
_PPR
2
C120
0.1u
R181
0
2V72_IO
R128
47
R183
680
100p
R148
SEND
L107
100nH
VBAT
1K
R178
1V5_CORE
2V65_ANA
C160
LD105
2.2u
C168
0.1u
47
R165
VA101
R151
106
680
107
2V85_IO2
C105
0.1u
680
R152
22p
C142
C141
0.1u
100nH
L109
LD107
LD108
VA102
C117
100p
10K
R106
GND1
GND2
IN
OUT
47
R164
VCHG
LFB212G45SG8A166
FL100
SHARP
2.2K
R111
R133
100K
C125
2V72_IO
VCHG
2V72_IO
27p
C114
0.1u
LD101
47
R158
R182
47K
C169
100p
COM
5
3
GND
IN
1
4
NC
NO 6
VCC
2
2V65_ANA
ANT100
NLAST4599DFT2G
U108
C108
10u
R177
10K
1M
R102
105
C124
3
4
2V72_IO
1000p
WAKEUP_BT_P1_7
WAKEUP_HOST_P1_8
B1
SML-521MUWT86
LD100
1
2
E1
E2
VDDRFREG2
F1
VDDSUP
VDDUART
H9
VDD_1
A8
B3
VDD_2
D4
VSS1
VSS2
D5
D6
VSS3
VSS4
E6
F6
VSS5
VSSRF1
F4
E5
VSSRF2
VSSRF3
F5
VSSRF4
E4
F2
VSSVCO
B2
J2
TX_CONF_P0_14
H7
TX_CONF_RXON
A2
G8
UARTCTS
UARTRTS
J8
J7
UARTRXD
UARTTXD
H8
J6
VCOCAP1
H6
VCOCAP2
VDDC1
F9
B5
VDDC2
D2
VDDCREG
E9
VDDPCM
VDDPLL
H1
G2
VDDPMREG
H4
VDDRF
VDDRFREG1
PSEL0
PSEL1
B8
D1
RESET_
RFIO
J4
J5
RFIOX
RFOUT
H5
RTCK
B9
SCL0_P0_13
C9
SLEEPX_P0_15
F8
TCK
B7
TDI
A7
B6
TDO
B4
TMS
A6
TRST_
TXA1
J3
H3
TXA2
TXAX
U102
C2
CLK32_P1_5
G1
CLKIN_XTAL
A5
JTAG_
H2
LOAD
NC1
A1
A9
NC2
J1
NC3
NC4
J9
C1
P1_6
PAON
A4
PCMCLK
D9
D8
PCMFR1
C8
PCMFR2_SDA0_P0_12
PCMIN
G9
E8
PCMOUT
A3
PMB8753
ZD2
ZD7
27p
C163
0
R122
27p
F100
C132
C113
27p
VBALUN
L102
100nH
1V8_MEM
2V65_BT
C116
0.1u
10K
R168
47
2V72_IO
C140
2V65_ANA
R157
0.1u
2V85_IO2
C162
27p
100K
R130
10u
C127
R176
0
R127
1.8nH
VBUS_USB
VBALUN
0.1u
C149
LMV7291MGX-NOPB
U100
GND
2
1
OUT
5
VCC
VIN+
3
4
VIN-
10K
L101
100nH
R105
ZD1
2V85_IO2
2V72_IO
LD103
C133
100p
R107
22K
27p
LD106
2V65_BT
C164
R159
47
680
R154
TP111
JACK_DETECT
47
R156
MULTI_PORT_2
HS_OUT_R
RTS_0
CTS_0
MULTI_PORT_3
HS_OUT_L
FM_ANT
MULTI_PORT_2
MULTI_PORT_1
MULTI_PORT_0
JACK_TYPE
JACK_DETECT
CHG_LED_CTRL
CHG_LED_CTRL
VBUS_USB
_USB_EOC
TF_CMD
TF_CLK
TF_DAT0
TF_DAT1
TF_PWR_EN
TF_PWR_EN
KEY_BACKLIGHT
CLK32K
TF_DETECT
TF_DAT2
TF_DAT3
TX_DEBUG
RX_DEBUG
MULTI_PORT_3
FM_INT
_USB_EOC
TF_DETECT
CLK32K
RX_DEBUG
USIF_TXD
FM_SND_R
FM_SND_L
FM_INT
FM_SND_L
SCL
SDA
_FM_RESET
FM_ANT
FM_SND_R
USIF_RXD
TX_DEBUG
MULTI_PORT_1
CTS_0
RTS_0
MIC2_N
MIC2_P
JACK_TYPE
I2S1_CLK
I2S1_WA
I2S1_RX
I2S1_TX
BT_VCXO_EN
_BT_RESET
BT_CLK
MIC1_N
KP_IN(1)
KP_IN(2)
KP_IN(3)
KP_IN(4)
VMICP
VBACKUP
HOOK_DETECT
KP_IN(1:4)
KP_OUT(0:3)
HS_OUT_R
HS_OUT_L
JACK_DETECT
RPWRON_EN
DSR
MULTI_PORT_0
SCL
SDA
KP_OUT(0)
KP_OUT(1)
KP_OUT(2)
KP_OUT(3)
_FM_RESET
MIC1_P
TF_CMD
TF_CLK
TF_DAT0
TF_DAT1
TF_DAT2
TF_DAT3
KEY_BACKLIGHT
RPWRON_EN
DSR
MIC2_N
MIC2_P
HOOK_DETECT
VMICN
USIF_TXD
USIF_RXD
CLK32K
BT_CLK
I2S1_CLK
I2S1_WA
I2S1_TX
I2S1_RX
_BT_RESET
BT_VCXO_EN
KP_IN(1:4)
KP_IN(1)
KP_IN(2)
KP_IN(3)
KP_IN(4)
KP_OUT(0:3)
KP_OUT(0)
KP_OUT(1)
KP_OUT(2)
KP_OUT(3)
VMICN
MIC1_P
MIC1_N
VMICP
7. CIRCUIT DIAGRAM
Summary of Contents for KE820
Page 1: ...Service Manual Model KE820 Service Manual KE820 Date August 2006 Issue 1 0 ...
Page 3: ... 4 ...
Page 5: ... 6 ...
Page 46: ...3 TECHNICAL BRIEF 47 Figure 18 EN SET port control method ...
Page 69: ...4 PCB layout 70 Figure 45 Main PCB bottom Figure 46 Main PCB bottom placement ...
Page 70: ...4 PCB layout 71 Figure 47 Sub PCB top Figure 48 Sub PCB top placement ...
Page 71: ...4 PCB layout 72 Figure 49 Sub PCB bottom Figure 50 Sub PCB bottom placement ...
Page 114: ...6 Download S W upgrade 115 6 2 Download program user guide ...
Page 115: ... 116 6 Download S W upgrade ...
Page 116: ... 117 6 Download S W upgrade ...
Page 117: ... 118 6 Download S W upgrade ...
Page 124: ... 125 8 PCB LAYOUT ...
Page 125: ... 126 8 PCB LAYOUT ...
Page 126: ... 127 8 PCB LAYOUT ...
Page 127: ... 128 8 PCB LAYOUT ...
Page 141: ... 142 ...
Page 161: ...Note ...
Page 162: ...Note ...