Trouble Shooting; Rf Component Description - LG KB770 Service Manual

4. TROUBLE SHOOTING

4.1 RF Component Description

Block
Diagram
Name
Block
U200
X500
U503
FL100
Common
U302
SW101
X100
U101
Bluetooth
ANT100
WCDMA/
U100
GSM
U102
FL102
WCDMA
FL103
FL104
U101
GSM
FL101
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Only for training and service purposes
Ref.
Part Name
MSM6280
CM315(12.5PF)
PM6650-3P
LMSP4LMA-573TEMP
TYA000B800COGG
KMS-512
TG-5010LH(19.2M)-75A
RB04
SNGF0027401
RTR6275
AWT6279R
ACMD-7602
EFCH1950TDF1
EFCH2140TDE1
SKY77329
EFCH897MTDB1
Function
Main Control
Sleep Clock
Power Control
Switch
Memory
Test Connector
VCTCXO
Bluetooth RF Transceiver
Bluetooth Chip antenna
WCDMA/GSM Transceiver
WCDMA PAM
W2100 Duplexer
WCDMA Tx SAW filter
W2100 RX SAW filter
GSM TX Dual PAM
G850/900 Dual TX SAW
Filter
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4. TROUBLE SHOOTING
Comment
Main Chipset
32.768 kHz
Power Supply
Band select
2G NAND/1G
SDRAM
Calibration, etc
19.2MHz
Bluetooth TRX
Bluetooth TRX
TRX
TX
TRX
TX
RX
TX
TX
LGE Internal Use Only