Service Manuals, User Guides, Schematic Diagrams or docs for : LG Mobile Phone LG F1200 LG F1200
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8. CIRCUIT DIAGRAM
8. CIRCUIT DIAGRAM
10
11
13
14
16
18
21
23
7
9
GND1
GND2
GND3
GND4
GND5
GND6
GND7
GND8
GND9
PGND
C108
R106
PA_BAND BS RSVD
100 4 15
PA_ON PAC_ENABLE 100p
2
SKY77325
GSM_IN U100 GSM_OUT
6 12
C114
1000p DCS_PCS_IN DCS_PCS_OUT
VSENSE
5 17
VCC1B
VCC1A
C106
VBATT
VAPC
NC
VBAT 12p
8
3
1
20
19
22
APC
R107
150
C102
1000p
R109
36
C103 C117 C115
R111
R108
150
150
33u 22p 0.01u
R559
PDNB
390
RF_EN
26MHz
CAM_CLK
RXQP C118
100p
RXQN
1000p
C110
RXIP
RF2.85V
L101 L102 R101
RXIN NA
22nH TP100 TP503
FL100 2p
13
TXQP SHS-L090SF C100 10nH
C121 1p C101
C128 NA
ANT
8
C134 10p DCS_PCS_TX
C122 1.2p 10
330p EGSM_TX
R116 1 7
TXQN L104 EGSM_RX1 GND1
L103 2 14
820 NA EGSM_RX2 GND2
6.8nH 3
R119 DCS_RX1
4 12
TXIP DCS_RX2 VC3
5 9
820 PCS_RX1 VC2
6 11
C135 C138 PCS_RX2 VC1
RF2.85V C124 1.2p
330p 330p
FA-23H X100
1
4
26MHz
TXIN L105
RF2.85V L106
C129 NA
5.6nH
2
3
0.1u
1000p C125 1.2p
R114 C136
R118
NA AFC C126
1.5K 0.022u
RF_EN
R558
SENB
SCLK 390
RF2.85V
C559 C561
10p 27p
SDI
PT100
R120
270K
C111
1000p
R121
PDNB
NA
R123
SENB
0
TEMPSENSE
R122
R125
4.7K
NA
RF2.85V
C113
1000p
NC7NZ34K8X U101
8 7 R102
VCC 1Y
ANT101 0
1 6
ANT_SW1 1A 3A
2 5 R103
3Y 2Y
ANT102 0
3 4
ANT_SW2 2A GND
ANT100
ANT_SW3
RF_EN
C133
1u
8. CIRCUIT DIAGRAM
1 2 3 4 5 6 7 8 9 10 11 12
R201 R205 R208 R209
A 10K
A
15K 10K 10K
C219 R202
0.1u FOLDER
DSR_MODEM
RTS_MODEM
CTS_MODEM
USB_PU_EN
RX_MODEM
C215
TX_MODEM
PCM_SYNC
R227 100K
PCM_CLK
PA_BAND
ANT_SW3
ANT_SW2
ANT_SW1
SD_IRDA
RX_IRDA
TX_IRDA
USB_DM
PCM_RX
TCXOEN
USB_DP
PCM_TX
PA_ON
RF_EN
26MHz
PDNB
SENB
10p 470K
SCLK
KBC(0:5) KBR(0:5)
RX
TX
R204 S
32.768KHz ON_OFF G SI1304DL
C212 10K
Close to DBB Q201
10p C201
NA
NA
1 2 TP208 D
27p
C218 C231
C216 4 3
R240
1u 1u
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