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4. TROUBLE SHOOTING
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4.7 Checking Bluetooth Block
TP1. VREG_BT_2.85V
TP2. VREG_MSMP_2.7V
TP3. TCXO_BT
TP4. BT ANT Output
TP4
TP3
TP2
TP1
Test Point of the Bluetooth Block
Schematic of the Bluetooth Block
BLUETOOTH
C14
C10
1u
0.1uF
10
VDD_MSM
7
XTAL_IN
1.8p
L1
GND1
1
GND2
6
GND3
8
GND4
15
PGND1
17
PGND2
18
19
PGND3
PGND4
20
13
RX_BB_TX_BB
11
SBCK
SBDT
12
4
SBST
SYNC_DET_TX_EN
5
VCC_OUT
3
14
VDD_BAT
2
VDD_INT
LBRQ-2B43A
M1
16
ANT
CLK_REF
9
2.2u
C6
2.2u
C12
C13
100p
1000p
C3
0
R2
1000p
C11
C4
100p
FEED
NC1
NC2
ANT1
BT_CLK
BT_SBCK
BT_SBDT
BT_SBST
VREG_BT_2.85V
BT_TX_RX_N
BT_DATA
TCXO_BT
VREG_MSMP_2.7V
TP2
TP1
TP4
TP3
Содержание U370
Страница 1: ...Date January 2008 Issue 1 0 Service Manual Model U370 Service Manual U370 ...
Страница 137: ... 138 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 147: ... 148 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 159: ... 160 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 178: ...Note ...
Страница 179: ...Note ...