LG KG110 Service Manual page 85

1 2
ANT402
A
B
VBAT
C
(Change to NA)
R417
VMOD_EN
L405
ANT_SW2
L406
ANT_SW1
R418
PA_EN
R419
TX_RAMP
D
Operating Mode
TX GSM 850/900
TX DCS/PCS
RX1
E
RX2
RX3
RX4
Sleep Mode
1 2
LGIC(42)-A-5505-10:01
3 4
ANT401
C401 NA
(same size with ESD Suppressor)
R401
0
C402 NA
SW400
KMS-507
L410
3.3nH
C403 1.2p
L411
2.2nH
L412 47nH
C440
15p
U401
TQM6M4003
13
GND1
15 9
GND2 VCC2
17
GND3
19
L404
GND4
VVCXO 21
27nH
GND5
10
V1
2
VCC1
R408
R427
220
0
R411
NA
180
33nH
33nH
100
10K
Control Voltage
Vmod_en
Vtx Vbs1 Vbs2
H H L L
H H H L
H L L L
H L L H
H L H L
H L H H
L L L L
3 4
5 6
FL403
856441
C441 100p
2 4
IN O1
6
O2
G1 G2 G3
FL401
856520
1
G_O1
C444 100p
9 2
G_IN G_O2
C445 100p 6 3
D_IN D_O1
4
D_O2
FL402
856417
C446 100p
2 4
IN O1
6
O2
G1 G2 G3
IP
IN
S_DATA
S_DATA
S_CLK
S_CLK
S_EN
S_EN
C424 0.01u
C426 0.1u
C427C428
0.1u 0.1u
R413 0
R407
24
R409
220
R415 0
R410
30
R412
180 AFC
Iss. Notice No. Date Name
5
7 8 9
C442 56p
L408
33nH
C443 56p
C415 68p
L401
18nH
68p
C416
C417 39p
L402
7.5nH
C418 39p
C419 47p
L403
6.8nH
C420 47p
C421
39p
U402
AD6548
33
GND
9
C423 0.1u
VLDO3
10 32
TXOP_LO RX850
11 31
TXOP_HI RX850B
C425 0.1u 12 30
VCC_TXVCO RX900
13 29
VDD RX900B
14 28
VBAT RX1800
15 27
VLDO1 RX1800B
16 26
VLDO2 RX1900
25
RX1900B
C429 C430
C431
0.1u 0.1u 220n
R414 0
C432
0.1u
C434 1000p
R416 1K
C436
C435 47p
0.1u
Y400
DSX321SL
Section Date Sign & Name
MODEL
Designer
06/05/30 Lang Xian li
Checked
DRAWING
NAME
Approved
DRAWING
LG Electronics Inc.
NO.
10
A
B
C422
39p
C
QP
C433
39p
QN
26MHz
L407
680nH
D
Sheet/Sheets
KG110
4/4
RF
Ver 1.0
LG Electronics Inc.