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Only for training and service purposes
4. TROUBLE SHOOTING
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
XWXVXZZ
4. TROUBLE SHOOTING
4.16 Bluetooth Trouble
TEST POINT
CIRCUIT
Figure 4.16.1
C374_TP4
BT_CLK
ANT
U302
C389_TP1
C385_TP2
C386_TP3
Test point
Test point
TP1
TP2
TP3
TP4
C389 100p
2450MHz
FL303
42
31
IN OUT
GND1 GND2
TP319
TP321
DNI
C393
C371 10p
L307
1.2n
61
3
R 0
TP325
TP324
TP327
TP326
TP322
DNI
C391
L318 2.2n
ANT304
SNMF0059501
23
1
FEED
GND2 GND1
C384 2.2u
673CIND
IND 573C
BCM2070CB0KUFBXG
U302
2C
2D
2F
3D
6C
7A
7G
5E
4E
6B
B7
E3
E6
B3
E8B5
D7
D8G3
C8G2
F5A4
F4
G6C7
F6A8
F3E7
C4F7
B2
B4D1
G4
2A
1C
1B
1E
1F
1G
1A
5A
8B
8F
5G
6A
8G
3A
TABV
3ODDV
2ODDV
1ODDV
3CDDV
2CDDV
1CDDV
GERV
XPDDV
FRDDV
ANLDDV
FIDDV
FTDDV
VHGE
RV
RES
RFP RST_N
REG_EN
SCL TM0
SDA TM2
SPIM_CLK PCM_IN
SPIM_CS_N PCM_OUT
PCM_CLK
LPO_IN PCM_SYNC
XIN UART_TXD
XOUT UART_RXD
UART_RTS_N
GPIO_0 UART_CTS_N
GPIO_1
TCXO_OR_OUT_GPIO_5
TCXO_OR_IN_GPIO_6
GPIO_7
NI_XEOC
0TUO_XEOC
1TUO_XEOC
7SSV
6SSV
5SSV
4SSV
3SSV
2SSV
1SSV
TP320
TP323
1V8_VDD
1n
C377
2.2u
C386
1V8_VDDVAUX
C385
2.2u
0
R326
10pC382
10nC381
10nC380
10nC383
10p
C378 C379
1u
600
TJ106-5001M1-BH
FB304
C374
1n
C373 1n
15KR308
DNI
C370 C372
DNI
R330
DNI
R329
0
CLK32K
DBB_BT_INT
BT_DBB_INT
BT_CLK
PCM_CLK
PCM_RX
PCM_TX
PCM_SYNC
BT_CTS
BT_RTS
BT_RXD
BT_TXD
FSYS_EN
BT_RESET
Bluetooth
TP3
TP2
TP1
TP2