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4.8 Checking Bluetooth Block
Test Point of the Bluetooth Block
Test Point of the Bluetooth Block
Schematic of the Bluetooth Block
4. TROUBLE SHOOTING
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TP1. VREG_BT_2.85V
TP2. VREG_MSMP_2.7V
TP3. TCXO_BT
TP4. BT ANT Output
TP1
TP2
TP3
TP4
BLUETOOTH
NA
L126
1000pC171
R118
0
C169
NA
100pC178
1uC172
C179 100p
ANT103
FEED
NC1
NC2
ACS2450HBAXX
C177 0.1uF
SYNC_DET_TX_EN
5
VCC_OUT
3
14
VDD_BAT
2
VDD_INT
10
VDD_MSM
7
XTAL_IN
16
ANT
CLK_REF
9
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
LBRQ-2B43A
M100
1000p C176
C173 2.2u
C180 2.2u
0
R123
BT_DATA
TCXO_BT
VREG_MSMP_2.7V
BT_CLK
BT_SBCK
BT_SBDT
BT_SBST
VREG_BT_2.85V
BT_TX_RX_N
TP4
TP1
TP3
TP2