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LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4.5 Bluetooth trouble
Bluetooth supplied voltages are generated by the PM6658.
Those signal’s path are : PM6658 <> VREG_MSMP_2.7V and VREG_BT_2.85V is asserted
<> TCXO_BT_PM 19.2MHz is asserted <> Bluetooth ON <> BT_TX_RX_N is High <> BT
serial interface control is operated (SBST/SBCK/SBDT)
[Fig.] the schematic of Bluetooth Block
[Fig.] Test Point of Bluetooth Block
VREG_BT_2.85V
L1019
0.5p
C1091
2.2u
VDD_BAT
14
VDD_INT
2
VDD_MSM
10
XTAL_IN
7
ANT
16
9
CLK_REF
1
GND1
6
GND2
8
GND3
15
GND4
17
PGND1
18
PGND2
PGND3
19
20
PGND4
RX_BB_TX_BB
13
SBCK
11
12
SBDT
SBST
4
5
SYNC_DET_TX_EN
3
VCC_OUT
M1000
LBRQ-2B43A
1u
C1090
C1094
0.1uF
1000p
C1089
R1021
0
VREG_MSMP_2.7V
AN1004
AMAN802012LG13
FEED
GND1
GND2
C1093
1000p
C1095
100p
100p
C1079
C1097
100p
2.2u
C1098
BT_CLK
TCXO_BT_PM
BT_SBCK
BT_SBDT
BT_SBST
BT_TX_RX_N
BT_DATA
TP1
TP2
TP3
TP4
TP4
TP2
TP1
TP3
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Summary of Contents for KF390
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