LG GS290 - Page 116

- 117 -
7. CIRCUIT DIAGRAM
LGE Internal Use OnlyCopyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
22u
C500
22K
R509
22p
C524
DNI
C540
TP501
22p
R501
KMS-518_P
SW500
G1
A
C
G2
100n
L501
0.5p
C510
C539
DNI
1.8n
C505
1.8n
C507
C501
100p
0
0
05
R
18n
L502
L503
5.1n
100R502
2.7p
C513
100R504
L
K
J
I
H
G
F
E
D
C
B
A
12
11
10
9
8 7 6 5 4 3 2 1
L
K
J
I
H
G
F
E
D
C
B
A
12
11
10
9
8 7 6 5 4 3 2 1
C503
47p
26MHz
X500 TSX-3225
21
3
4
GND2 HOT2
HOT1 GND1
2.2p
L504
0.1u
C518
U500
PMB6272
20
19
18
17
16
15
14
13
1221 2211 3201 429 528 627 726 825 924 033 132 231
33
34
35
36
37
38
39
40
41
GND4
GND3
VDDMIX2V8
VDDTX2V8
TX2
TX1
VDDTX1V5
VBIAS
FE2
A 1EF
XA 8V2SAIBDDV
B X1XR
XB 1XR
8V2GIDDDV X2XR
AD 2XR
KLC 2DNG
5V1GIDDDV X3XR
3SYSF 3XR 2SYSF X4XR
OX 4XR
XOX 5V1ANLDDV
GND1
FSYS1
VDDXO2V8
EN
VDDVCO2V8
VCO_RC
VDDRX1V5
VDDRX2V8
C508
47p
C509
47p
VRF_2V85
VRF_1V5
C511
220n
C514
4.7p
C515
4.7p
ANT500
VRF_2V85
15n
L505 L506
4.7n
1nC516
C517
47n
0.1u
C520
1KR505
SKY77344
U501
12
11 10
12 9
13 8
14 7
15 6
16 5
17 4
18 3
19 2
20 1
BSMODE
ENABLEVDET
VRAMPVBATT2
DCS_PCS_INVBATT1
GSM_INGND9
GND1DCS_PCS_OUT
GND2GND8
GND3GSM_OUT
GND4GND7
GND5GND6
DNGP
DNI
C519
0.1u
C535
01
6
0
5R
VRF_2V85
4.7n
C521
10
R507
VRF_2V85VRF_1V5
VRF_2V85
220n
C522
C523
DNI
ANT501
2.2p
C525
C526
4.7p
C527
4.7p
ANT502
0.1u
C506
1u
C530
VBAT
27p
C531
2.2p
C534
R508
820
LMSP43NA-782
FL500
02 9131
11
81 518 417 216
95
4
013 61
2 1
17
ANT
1XR058MSG 2XR058MSG 1CV 1XR009MSG 2CV 2XR009MSG
1XR0081MSG 1DNG 2XR0081MSG 2DNG 1XR0091MSG 3DNG 2XR0091MSG 4DNG
5DNG
XT0091_0081MSG
XT009_058MSG 1CN
2CN
10K
NCP15XH103J03RC
PT500
0.1u
C536
0.1u
C537
VRF_1V5
DNI
C538
0
R510
2.7p
C512
C504
DNI
PA_LEVEL
PA_MODE
PA_BAND
TXON_PA
RF_EN
RF_DA
RF_CLK
RF_TEMP
26MHZ_MCLK
QX
Q
IX
I
CLK26M
LBAND_PAM_IN
LBAND_PAM_IN
HBAND_PAM_IN
HBAND_PAM_IN
VC1
VC1
VC2
VC2
ANT_STUB
DCS1800GSM900
(FROM DBB)
(FROM Transceiver)
(FROM Transceiver)
SKY77344
L
L
GSM 1800 / 1900_ RX
GSM850 / 900_RX
VC2 (FE2)
PCS1900GSM850
H
H
L
GSM850 / 900_TX
L L
L
GSM 1800 / 1900_ TX
VC1 (FE1)
RF
CI:$0.05(CMOS->PIN)
(FROM DBB)