LG GX500 - Page 123

7. CIRCUIT DIAGRAM
- 124 -
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Only for training and service purposes
18n
C436
3.3p
C421
n51
104L
2.7p
C431
2.7p
C427
TP401
TP402
1u
C414
104LF
287-AN34PSML
02 9131
1
1
81 518 417 216
95
4
013 612
1
17
ANT
1XR058MSG 2XR058MSG 1CV
1XR009MSG 2CV
2XR009MSG
1XR0081MSG 1DNG 2XR0081MSG 2DNG 1XR0091MSG 3DNG 2XR0091MSG 4DNG
5DNG
XT0091_0081MSG
XT009_058MSG 1CN
2CN
SW401
43
2
1
ANT COMMON
G3 G4
1p
C440
GND402
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
FRV_5V1
P0001
604C
2726BMP
104U
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
C407
0.1U
FRV_5V1
C408
2.2P4.7P
C409
FRV_5V1
3.3p
C426
TABV
0.1U
C411
C412
4.7P
220N
C413
R401
10
R402
820
100P
C415
C416
0.1U
12n
C410
C417
22n
C418
100P
26MHz
DSX321SG-26M
X401
21
34
R403
10K
PT401
10K
FRV_58V2
914C
N74
47P
C420
C422
0.01U
4.7N
C423
C424
100P
FRV_58V2
0.01U
C425
C428
0.5p
100P
C429
FRV_58V2
0.1U
C430
FRV_58V2
L404
4.7p
0.22U
C432
C433
8.2n
27P
C434
FRV_58V2
2.2P
C435
100P
R404
HN1.5
804L
R405
10
2.2n
C405
ANT401
504L
HN51
n7.4
204L
C437
33u
OK
C438
0.1U
L406
3.9p
C439
100P
R406
22K
TQM7M5005H
U402
OK
15 7
8 6
11
14 5
9 4
13 3
10 2
12 1
DCS_PCS_INDCS_PCS_OUT
MODE_SELECTGSM850_900_OUT
BSBY_CAP1
VBATTBY_CAP2
VRAMPGND1
GND2
TX_ENGND3
GSM850_900_INPGND
C441
100P
R407
100P
100NH
L407
0.1U
C442
20pL403
I
IX
Q
QX
S1_RF_TEMP
FE2
FE2
TXON_PA
S1_PA_BAND
FE1
FE1
PA_MODE
PA_LEVEL
26MHZ_MCLK
RF_DA
RF_CLK
RF_EN
LBAND_PAM_IN
LBAND_PAM_IN
HBAND_PAM_IN
HBAND_PAM_IN
L
GSM 1800 / 1900_ TX
GSM850 / 900_RX
L
VC2 (FE2)
GSM900 PCS1900GSM850
VC1 (FE1)
L
L
L
GSM850 / 900_TX
H
L
H
GSM 1800 / 1900_ RX
DCS1800