LG D690 - Page 118

- 118 -
Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
6. CIRCUIT DIAGRAM
XU_sXZ[\
sXZX_ kup
kupjXZZ]
kupsXZY_
ZsXZY`
sXZ[Y kup
sXZYW YU[
sXZX] YU[
ANT RX1
TX
GND1
GND5GND2
RX2
GND3 GND4
i_W^_msXZWZ
75
8
4 9
2
3
16
}ih{
jXZW_ X
jXZZ[ kup
kupjXZZ\
jXZXX kup
sXZX\ X
[`U`
{vsdWUWX
yXZWW
kupsXZW`
sXZW_ kup
sXZ\X XU_
sXZW\ ]U_
jXZZ` XUY
PGND
VCC1VCC2
RFINRFOUT
VMODE_1CPL_IN
VMODE_0GND
VENCPL_OUT
|XZWX
lhu]Y]_^XWX
zr^^^]X
6 5
7 4
8 3
9 2
10 1
11
YUYjXZZZ
X
Y
jXZYX kup
+2V8_MTK_VTCXO
VDDRF1
CTRL
GND
RF2
RFIN
msXZWX inzXYws]
5
1
2
6
3 4
kupjXZXZ
jXZXY kup
ZUZsXZWW
ZUZsXZWZ
XWWjXZW[
XWWjXZWY
+3V4_MTK_VPA
XjXZWZ
kupsXZW[
sXZ[_ ZU`
jXZW] XWW
sXZYX kup
jXZ[W XU\
jXZX[ kup
sXZY^ _UY
sXZ\W XU_
sXZY\ _UY
sXZ[] X
X_sXZXZ
jXZZ^
kup
+3V4_MTK_VPA
}ih{
XjXZW`
kupsXZ[X
ANT
GND2
RX_OUT2
GND1
RX_OUT1
TX_IN
GND4
GND3 GND5
msXZW\ i_\^\
lht]Y`ZW`WX
95
7
3
1
2
8
4
6
sXZY] XY
sXZ[^ X
sXZWX ZZ
Z]
yX]WZ
sXZ[` [U^
sXZYZ kup
jXZY_ Z
sXZWY kup
yX]WX
Y^
{vsdWUWX
kupsXZY[
RFIN_LB
GND1
VEN_LB
RFOUT_HB
CPL_OUT
VBATT
VEN_HB
VCC
RFIN_HB
VMODE
NCCPL_IN
RFOUT_LB
GND2
PGND
zr^^^\_|XZWW
15
13
14
10 5
6
4
12
7
3
8
11
1
9
2
sXZXX kup
jXZWW XY
yX]WY
{vsdWUWX
Y^
XsXZXW
sXZX[ kup
kupsXZYY
sXZW^ kup
kupsXZW]
jXZWX XWW
jXZXW YUY
ANT RX1
TX
GND1
GND5GND2
RX2
GND3 GND4
i_\\ZmsXZWW
lht]Y\XW`WX
75
8
4 9
2
3
16
ANT
GND2
RX_OUT2
GND1
RX_OUT1
TX_IN
GND4
GND3 GND5
msXZWY i_\X\
95
7
3
1
2
8
4
6
lht]Y_`WZWX
jXZZY X
sXZZ]
kup
kupsXZZ\
sXZ[Z
XY
sXZ[W
kup
kupsXZZ`
ZZjXZY^
sXZZ_
kup
sXZZ^ kup
jXZZX X
jXZW^ X
sXZX^ \U]
sXZXY [U^
jXZZ_ X
sXZX` \U]
ZnyiYw
{tvk|sl{yZ
Zn{oiY
ZnwhiYlu
ZnwhiXlu
Zn{oiX
whtvklzlsX
ZnyiXw
ZnyiXu
ZnyiYu
{tvk|sl{y[
Zn{si
Znyi\u
Znyi\w
Znyi_w
Znyi_u
{tvk|sl{yY
whtvklzlsW
whtvklzlsW
Znsi{z~
Znwhsilu
{tvk|sl{yX
wkl{pu
}lusi}luoi
}tvkl
iYGswt
iYGowt
whGsvnpjGiYVi\Vi_
}luOZnwhiXluP
}tvklX}tvklW
whGsvnpjGiX
pGzGwhGGujSGjXZZ^dW
XWiGhU
jGz¡GXWW\GTeGW]WZGmGw
YWX[GW[GWZGGsG
YWX[GW[GWZGGsG
B5
Low : RF1
sXZX_GGGkw
B5 TRX
X[WZY^jGGokr
High : RF2
Pin(limit):35dBm
cG{yiXiYi\i_xGGe
B8
sXZY]GGGkw
B8 TRX
sXZY`GGGkw
WUY
X[WZY^jGGokr
jGz¡GXWW\GTeGW]WZGmGw
CPL factor(LB) : 20.5 - 21.5dB
CPL factor(HB) : 19.5dB
WU]
B1
X[WZY^jGGokr
X[WZXYjGGokr
X[WZYWjG}Gt{r
GGGGZnGwh
jjkzJGaGXT[TZT[GyWUZ
sXZZYGGGkw
sXZW\GGGkw
X[WZY^jGGokr
sXZXYGGGkw
B2 TRX
B2
B1
B1 TRX
o
o
o
o
o
s
s
T
s
T
s
s
s
swGtvkl
twGtvkl
owGtvkl
zo|{Gkv~u
z{hukTi
wv~lyGtvkl
o
s
wv~lyGtvkl
z{hukTi
i\Vi_Gowt
i\Vi_Gswt
s
o
T
s
s
zo|{Gkv~u
s
s
o
o
o
o
o
s
s
s
s
s
s
sXZ[[ ZUZ jXZZW XU_
yGXUW
yGXUWyGXUW
yGXUW
yGXUW
yGXUW
yGXUW
yGXUW