Bluetooth Rf Block - LG KU800 Service Manual

4. TROUBLE SHOOTING

4.6 Bluetooth RF Block

FEED
ANT1
L702
4.7nH
<Key PCB>
BLUETOOTH
NC2
NC1
9
C732
BT_CLK
NA
12
14
2
3
C734 C733
2.2u 1u
1608
TP2
TP1
VREG_MSMP_2.7V
R707
VREG_BT_2.85V
0
C724 C729 C727 C725 C730 C728
0.01u 1u 33p 0.01u 1u 33p
M1
RB06A
6
CLK_REF SBST
10
SBCK
11
VDD_MSM SBDT
5
SYNC_DET_TX_EN
8
VDD_A RX_BB_TX_BB
4
LDO1 XTAL_IN
13
LDO2 NC
TP1: BT power supply
TP2: BT power supply
TP3: 19.2MHz reference clock
- 86 -
TP2
BT_SBST
BT_SBCK
BT_SBDT
BT_TX_RX_N
BT_DATA
TCXO_BT
TP3
TP1
TP3