Component Description - LG CU720 Service Manual
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Also See for CU720:
- User manual (246 pages) ,
- Guía del usuario (129 pages) ,
- Quick start manual (17 pages)
Table of Contents
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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
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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
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Table of Contents
Troubleshooting
