Block Diagram; Cu405 Block Diagram - LG CU405 Service Manual

6. BLOCK DIAGRAM

6.1 CU405 Block Diagram

1800/1900
850/900
SPDT
850
Coupler
1900
Coupler
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Only for training and service purposes
GSM Tx/Rx
GSM
TX_SAW
PAM
900
GSM 850 Rx
GSM-VCO
GSM 900 Rx
GSM 1800 Rx
GSM 1900 Rx
RTR6275
WCDMA Tx/Rx
TX_SAW
WCDMA
W-VCO
PAM
TX_SAW
HDET
LNA
1900 RX_SAW
RFR6275
LNA
850 RX_SAW
I/Q
MSM6280
SSBI
SSBI
W-VCO
Bluetooth
- 131 -
6. BLOCK DIAGRAM
VGA
Earpiece
MIC
SPEAKER
TPA2005
Stereo Headset
LCD
(ì 2 QCIF)
NAND 512M
SDRAM 512M
Power
SSBI
USIM
USB
PM6650
+5V
LGE Internal Use Only