LG LG9200 Service Manual page 102

7. CIRCUIT DIAGRAM
1 2
R501
0
R502
0
A
R503
0
B
R515
820
C516
470p
R516
820
C
R517
820
C517
470p
R518
820
C523
0.1u
D
GSM_TX
VBAT
RF2.85V
PCS_TX
MIC5255-2.85BM5 U502
5 1
OUT IN
2
GND
C546
E 4 3
C547
BYP EN RF_EN
0.01u
2.2u
C548 C549
(1608)
2.2u 10p
(1608)
1 2
3 4 5
R504
18
C501
R505 R506
NA 300 300
C502
NA
C503
39p
R508
18
C524
1.5p
C525
10p
L503
22nH
C526
L504
0.1u
6.8nH
C527
C528
0.1u
C529
0.1u
C518
0.1u
VCC12 VBAT2
37
IN VREG3
38
IP LNAGSMN
39
QP LNAGSMP
40
QN VBG
41
C519 0.1u
VCC13 LNADCSN
42
TRF6151C
C520 1u
VREG1 U504 LNADCSP
43
C521 1u
VBAT1 VCC7
44
C522 1u
VREG2 LNAPCSN
45
VRIO LNAPCSP
46
R519 0
XOUT RTEMP_VTEST
47
XIN SIOUT_TST
48
GND
49
R520 0
C539 C538
1u
1u
C540 C541 C542 C543 C544 C545
1u 100p 1u 1u 100p 1u
R521
51
Y1 Y2
L H
H L
RX L L
R525
X501
15K
1
VCONT
2
GND
C551
1000p
3 4 5
6 7
BS RSVD_GND
1 19
ENABLE
18
SKY77328
GSM_IN U503 GSM_OUT
4 11
DCS_PCS_IN DCS_PCS_OUT
3 15
R507
220
C505 C506 C507 C508 C509
C504
33p
33u 12p 0.01u 0.01u 0.01u
R509
220
47p
C530 C531 L511 5.6nH
1u 1u
FL502
3
EFCH881MTCA1 2
24 L505 O1 G1
IN
NA
O2 G2
23
4 5
L512 5.6nH
22
21
20
C534 0.1u
19
18
17
C535 100p L513 3.3nH
16
FL501
EFCH1960TCA1 3 2
15 L506 O1 G1
IN
NA
O2 G2
14 4 5
L514 3.3nH
13
R522 PT501
270K
R523
680
R524
4.7K
R526
1M
Section Date
C555
RF2.85V
1000p
Designer 05/07/26
C550
26MHz 1000p Checked 05/07/26
3
OUT
4
VCC
Approved
05/07/26
C552
1u
LG Electronics Inc.
- 115 -
8 9 10
C510 C511
0.75p NA
ANT701
ANT700
L501 L502
8.2nH 2.2nH
ANT702
ANT703
C512 C513
2p 0.5p
L507 NA
R512
0 C514 0.5p
C556 C557
47p SW501
47p
KMS-507
1
C515
22p
FL503
SHS-C090DR-A
4
R513 0 GND1
10 6
GSM850_RX GND2
1 7
GSM1900_RX GND3
9
R514 0
GND4
12
GND5
5 13
GSM850_TX GND6
3 14
1
GSM1900_TX GND7
RF2.85V
GSM_ON
TX_ON
C553
10p
PCS_ON
C554
27p
Sign & Name Sheet/
LG9200
MODEL
Sheets
J. M. PARK
5/7(M)
T. S. PARK
DRAWING
RF_RITA
NAME
S. S. BAE
DRAWING
Ver 1.1
NO.
A
B
C
D