Component Description - LG CU720 Service Manual

4. TROUBLE SHOOTING

4.2 Component Description

Block
Block
Ref. Ref.
Diagram Diagram
Name Name
Block Block
U201
X401
X201
U402
U302
Common Common
FL101
U303
SW101
X101
M101
Bluetooth
Bluetooth
ANT104
WCDMA/ WCDMA/
U101
GSM
GSM
U106
U107
FL103
WCDMA WCDMA
FL104
FL105
FL106
FL107
U102
GSM
GSM
FL102
LGE Internal Use Only
Part Name
Part Name
MSM6280 Main Control
FC-135_12.5pF Sleep Clock
ICRT20S48M0X514CR USB Clock
PM6650-3P Power Control
TPA2005D1DRBR Speaker AMP
LMSP4LMA-573TEMP Switch
TYA000BC00HOGG Memory
KMS-518 Test Connector
TG-5010LH-19.2MHz VCTCXO
LBRQ-2B43A Bluetooth RF Transceiver
ACS2450HFL57 Bluetooth Chip antenna
RTR6275 WCDMA/GSM Transceiver
AWT6321R WCDMA Dual PAM
RFR6275 W850/1900 Receiver
B7638 W850 Duplexer
ACMD-7402-TR1G W1900 Duplexer
DGLP36M01 WCDMA Dual Tx SAW filter
B7838 W850 RX SAW filter
B7847 W1900 RX SAW filter
TQM7M5003 GSM TX Dual PAM
LMSM32AA-533 G850/900 Dual TX SAW Filter
- 80 -
Function Comment
Function Comment
Main Chipset
32.768 kHz
Power Supply
Band select
2G NAND/1G
Calibration, etc
19.2MHz
Bluetooth TRX
Bluetooth TRX
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
48MHz
AMP
SDRAM
TRX
TX
RX
TRX
TRX
TX
RX
RX
TX
TX