LG L1150 Service Manual page 121

8. CIRCUIT DIAGRAM
1 2
A
ANT
L805
4.7nH
C801
3p
C805
NA
SW801
KMS-507
B
C860
10p
C821
22p
FL801
LMSP7CHA-216
11
ANT GND1
GND2
GND3
GND4
C
VC1 VC2 VC3
PIN 7 PIN 14 PIN 16
GSM RX L L L
DCS RX L L L
PCS RX H L L
GSM TX L L H
DCS/PCS TX H H L
D
RF2.85V
R832
R831
22K Thermistor
270K
R833
680
TEMPSENSE
R834
C846
4.7K
0.47u
E (1608)
2
LGIC(42)-A-5505-10:01
3 4 5
RSVD BS
15 4
PAC_ENABLE
2
SKY77325
C862 35dBm
GSM_OUT U804 GSM_IN
12 6
10p 0 ~ 3dBm ~ 6
C810 C811 DCS_PCS_OUT DCS_PCS_IN
17 5
NA NA 33dBm
C807
VBAT
3.3p
R803
C806 APC
0
0.5p L804
C809
3.3nH C817 C815 C816 C813
C804 33p
0.01u 0.01u 0.01u 12p
39p
C823 1.5p
L801
27nH
C824 1.5p
C851 2.2p
L803
19 5.6nH
13
C852 2.2p
12
9
C826 1.8p
L802
5.1nH
C829 1.8p Coil Inductor
R821
C836
R822
1K
27p
C837 0
NA
U801
NC7NZ34K8X
R838
R827
C841
1K
27p C856 0
RF2.85V
NA
R825
C840 0
R835
C853 C854 NA
1K
27p 0.1u
RF2.85V
VBAT
U805
ADP3330
1 6
OUT _SD RF_EN
3 2
_ERR IN
5 4
NR GND C847 C848
2.2u 10p
(1608)
C849
470p
3 4 5
6 7
C802
NA
R806
36
R808
R807 6dB Atten
150 150
C812
R810
33u
30 C808
33p RF2.85V
C850
R811 5dB Atten R812
10p
180 180
C822
10p
8dBm 9dBm
21
RFIGN
20
RFIGP
19 1
RFIDN RXQN
18 2
RFIDP U803 RXIP
17 3
RFIPN SI4205 RXIN
16 4
RFIPP TXIP
15 5
GND1 TXIN
36 6
GND8 TXQP
35 7
GND7 TXQN
34
GND6
33 RF2.85V
GND5
C833
15p
100p
C835
RF2.85V
VC2 VCC
4
R823
OUT
3
100
C839
2.2u
VC1
VC3
C842
18p
Section
Designer
Checked
Approved
Iss. Notice No. Date Name LG Electronics Inc.
- 120 -
8 9 10
R801 0
PA_BAND
R802 0
PA_ON
C803
NA
R836
RF_EN
0
R837
26MHz
680
R841
CAM_CLK
0
RXQP
RXQN
RXIP
RXIN
R814
TXIP
C827 820 C828
560p NA
R815
TXIN
820
R817
TXQP
C831 820 C832
560p NA
R818
TXQN
820
26MHz
GND
2
R824
VCONT AFC
1
C838 1.5K
X801
10p
R826 150
S_DATA
R828 150
S_CLK
R829 150
S_EN
R830 150
PDNB
C843 C844 C845
7p 33p 33p
Date Sign & Name
MODEL L1150
03/18
JS YOO
2004
03/18
YM CHO
2004
DRAWING
RF_AERO I
NAME
DRAWING
V1.2
NO.
LG Electronics Inc.
C
D
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