LG LG-D618 - Multimedia; FM Radio Usage

3. TROUBLE SHOOTING
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Only for training and service purposes
LGE Internal Use Only
Schematic of GSM(850/900)/DCS/PCS Rx Block
L1103 1.8n
L1104
3.9n
DNIL1105
13
17
16
14 18 15
FL1100
1842.50MHz/1960.00MHz
4
3
2
1
510
6
7
8
9
GSM1900_OUT
GND6
GND5
GSM1800_OUT
GND7 GND4
GSM1800/1900_IN
GND1
GND2
GND3
1.5nC1102
C1104
DNI
DNIL1106
C1103 3.3n
L1102 3.3p
WTR_PRX_MB_3_IN
G1800, G1900
RX_G1900
RX_G1800
0924 JANG K H
TP4
8.2n
L1602
EAM62954601
FL1601
75
84
92
3
16
ANT
RX
TX
GND1 GND6
GND2 GND5
GND3 GND4
1.5nC1622
DNI
L1605
C1623 15n
C1620 3.3n
33pC1621
DNI
L1603
C1624 5.6n
L1604
1.5p
DNI
C1625
TX_MODULE_TRX_2
WTR_PRX_LB_2_IN
guarantee LNA gain setting time
Shunt cap must be<=33pF
TP3
FL1603
EAM62990301
75
84
92
3
16
ANT
RX
TX
GND1 GND6
GND2 GND5
GND3 GND4
C1649 3.9n
L1608
6.8n
L1609
DNI
C1648 47p
C1647 3.3n
C1653
15n
C1651 3n
DNI
C1652
C1650 15n
DNI
C1654
TX_MODULE_TRX_4 WTR_PRX_LB_1_IN
guarantee LNA gain setting time
Shunt cap must be<=33pF
Place matching components near WTR
B8, G900
TP2