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LG F1200 Circuit Diagrams
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LG F1200 Circuit Diagrams

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8. CIRCUIT DIAGRAM
SCLK
SDI
PDNB
R123
SENB
0
PA_BAND
PA_ON
APC
R559
PDNB
390
RF_EN
26MHz
CAM_CLK
RXQP
RXQN
RXIP
RXIN
TXQP
C134
330p
R116
TXQN
820
R119
TXIP
820
C135
C138
RF2.85V
330p
330p
TXIN
C129
0.1u
1000p
C136
R114
R118
NA
AFC
1.5K
RF_EN
SENB
RF2.85V
R121
NA
R122
NA
ANT_SW1
ANT_SW2
ANT_SW3
C108
R106
BS
RSVD
100
4
15
PAC_ENABLE
2
100p
SKY77325
GSM_IN
U100
GSM_OUT
6
12
C114
1000p
DCS_PCS_IN
DCS_PCS_OUT
5
17
C106
VBAT
12p
C102
1000p
C103
C117
C115
33u
22p
0.01u
C118
100p
RF2.85V
L102
L101
NA
22nH
C121
1p
C128
10p
C122
1.2p
L104
L103
NA
6.8nH
C124
1.2p
RF2.85V
L106
L105
5.6nH
NA
C125
1.2p
C126
0.022u
R558
390
C559
C561
10p
27p
RF2.85V
C113
1000p
NC7NZ34K8X
U101
8
7
VCC
1Y
ANT101
1
6
1A
3A
2
5
3Y
2Y
ANT102
3
4
2A
GND
ANT100
C133
1u
R101
TP100
TP503
FL100
2p
SHS-L090SF
C100
10nH
NA
C101
8
DCS_PCS_TX
10
EGSM_TX
1
7
EGSM_RX1
GND1
2
14
EGSM_RX2
GND2
3
DCS_RX1
4
12
DCS_RX2
VC3
5
9
PCS_RX1
VC2
6
11
PCS_RX2
VC1
C111
1000p
TEMPSENSE
R102
0
R103
0
RF_EN
8. CIRCUIT DIAGRAM

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Summary of Contents for LG F1200

  • Page 1 8. CIRCUIT DIAGRAM 8. CIRCUIT DIAGRAM C108 R106 PA_BAND RSVD PA_ON PAC_ENABLE 100p SKY77325 GSM_IN U100 GSM_OUT C114 1000p DCS_PCS_IN DCS_PCS_OUT C106 VBAT C102 1000p C103 C117 C115 0.01u R559 PDNB RF_EN 26MHz CAM_CLK RXQP C118 100p RXQN RXIP RF2.85V L102 R101 L101...

  • Page 2: Circuit Diagram

    SPK_EN HP_AMP_EN Close to DBB MIDI_EN F_KEY_BL LCD_BACKLIGHT R220 USB_EN KEY_BACKLIGHT Engineer: J.S. BAE LG Electronics Drawn by: S. R. LEE R&D CHK: Size: Y. J. PARK TITLE: F1200 DOC CTRL CHK: 12 1 8 A Rev_1.0 MFG ENGR CHK:...
  • Page 3 A(2) C_HOLD 1000p 220n 470p TP515 TP517 C_INT L_CS D(0:15) Engineer: J.S. BAE LG Electronics Drawn by: S.R. LEE R&D CHK: Y. J. PARK TITLE: Size: F1200 DOC CTRL CHK: 12 1 8 A Rev_1.0 MFG ENGR CHK: Changed by:...
  • Page 4 VBAT VBAT COM1 R440 JTAGEN COM2 AVLC18S02015 AVLC18S02015 VA401 VA402 Engineer: J.Y. YEON LG Electronics Drawn by: S.R. LEE R&D CHK: Y. J. PARK TITLE: Size: F1200 DOC CTRL CHK: 12 1 8 A Rev_1.0 MFG ENGR CHK: Changed by:...
  • Page 5 2.2u MICN 0.1u C509 BGND R544 C552 C554 0.01u 1.2K Engineer: J.Y. YEON LG Electronics Drawn by: S.R. LEE R&D CHK: Y. J. PARK TITLE: Size: F1200 DOC CTRL CHK: 12 1 8 A Rev_1.0 MFG ENGR CHK: Changed by:...

  • Page 6: Pcb Layout

    9. PCB LAYOUT 9. PCB LAYOUT...
  • Page 7 9. PCB LAYOUT...