PX8700
LG Electronics Inc.
- 27 -
[Figure 1-1] Block Diagram of
P
X8700
SBI 1
RFR6500
LO Distribution
LPF
LPF
SBI 1
TX PLL
RFT6150
Loop
Filter
Loop Filer
U108
DUAL PAM
AWT6310R
Gain:27dB
DP101
PCS Duplexer
ACMD-7402
DP104
DCN Duplexer
EFSD836MF2S2
U104
Triplexer
C015
U103
Mobile S/W
MS-156NB
Tri-band Ant.
F105
DCN Tx RF SAW
EFCH836MTCB8
IL:2.5dB
Attn.:39dB
F104
PCS Tx RF BPF
ACPF - 7002
IL:3.5dB
Attn.:35dB
U105
RFR6000
F101
DCN Rx RF SAW
EFCH881MTCA7
IL:2.5dB
F103
GPS Rx RF SAW
B7840
F102
PCS Rx RF SAW
B7847
IL:3.4dB
X101
VCTCXO
TG-5010LH
U102
RFT6150
Gain:15.9dB
NF:1.6dB
Gain:15.4dB
NF:1.4dB
U107
GPS LNA
ALM-1106-TR1
Gain:15.4dB
NF:1.4dB
RX PLL
LPF
GPS PLL
Loop
Filter
SBI 2
Jammer Det.
Primary path
Secondary path
Gain Control
M
S
M
6
5
5
0
Triplexer
GPS BPF
U109
COUPLER
CP0402A1880
U110
COUPLER
CP0402A836
Summary of Contents for PX8700
Page 40: ...PX8700 LG Electronics Inc 40 Circuit Diagram ...
Page 45: ...PX8700 LG Electronics Inc 45 Circuit ...
Page 51: ...PX8700 LG Electronics Inc 51 Circuit Diagram ...
Page 56: ...PX8700 LG Electronics Inc 56 Circuit ...
Page 62: ...PX8700 LG Electronics Inc 62 Circuit Diagram RFT6150 PMIC 2 9V_TX 2 6V_MSMP2 circuit ...
Page 70: ...PX8700 LG Electronics Inc 70 RF_IN Graph 4 2 1 6 RF_OUT Circuit Diagram Waveform ...
Page 84: ...PX8700 LG Electronics Inc 84 Graph 4 2 2 5 RF_OUT RF_IN Waveform Circuit Diagram ...
Page 90: ...4 3 1 2 Charging Trouble Circuit Diagram Test Points V_BATT Pin1 CON401 U402 ...
Page 98: ...4 3 4 2 Receiver Trouble Test Points Circuit Diagram R314 U305 R315 C338 ...
Page 100: ...4 3 4 4 Headset Trouble Circuit Diagram Test Points CON402 R405 R416 R415 C116 C115 ...
Page 103: ...4 3 4 3 Mic Trouble Circuit Diagram Test Points R126 M101 ...
Page 110: ...4 3 6 3 USB Interface Circuit Diagram U201 MSM6550 U302 Test Points R307 X202 R306 L302 C314 ...
Page 128: ......
Page 130: ...MSM6550 P N MSM6550 R N U201 No Booting Memory P N HYG0UGG0MF1P 5SH0E R N U304 No Booting ...
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Page 139: ...DCN Tx DCN Rx PCS Tx PCS Rx ...
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Page 147: ...D 1 Accessories 0 1 1 14 0 11 4 1 2 2 1 1 11 4 31 11 1 1 0 1 1 ...