LG GB220 - Bluetooth Trouble

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4.16 Bluetooth Trouble
TEST POINT
CIRCUIT
Figure 4.16.1
C430
C419
ANT403
C402 0.01u
PCM_CLK
C418
1000p
100K
R419
R420
0
DNI
R415
C423 1000p
DNI
R416
PCM_RX
AMAN802012LG19
ANT403
DUMMY1 DUMMY2
FEED
15K
R411
BT_CTS
BT_TXD
BT_RTS
PCM_SYNC
R413 0
R401
0
R407
0
R409
DNI
C406 0.01u
C415
1u
C405 2.2u
1V81_VDD
C420
DNI
2p
C419
R400
0
C414
10p
0.01u
C404
1000p
PCM_TX
C424
C430
0.75p
VAUX
100K
R418
VDDPX
VDDRF
F1 C1
VDDTF
VREG
A1
VREGHV
A2
VSS1
C2 D2
VSS2 VSS3
F2
VSS4
D3 C6
VSS5
A7
VSS6 VSS7
G7
G2
XIN
XOUT
G3
1V81_VDD
TCXO_OR_OUT_GPIO_5
TM0
C4
F3
TM2
E8
UART_CTS_N
UART_RTS_N
D7
D8
UART_RXD
UART_TXD
C8
A3
VBAT
A5
VDDC1 VDDC2
B8 F8
VDDC3
VDDIF
B1 E1
VDDLNA
VDDO1
G5 A6
VDDO2 VDDO3
G8 G1
B3
B7
GPIO_7
LPO_IN
A4
PCM_CLK
F4
PCM_IN
F6
G6
PCM_OUT
F5
PCM_SYNC
B2
REG_EN
RES
G4
D1
RFP RST_N
B4
SCL
F7
E7
SDA
SPIM_CLK
A8
C7
SPIM_CS_N
TCXO_OR_IN_GPIO_6
E3
E6
BCM2070
U401
COEX_IN
B6
COEX_OUT0
E4 E5
COEX_OUT1
B5
GPIO_0
GPIO_1
SFCY0000901
LFB212G45SG8A166
FL400
GND1 GND2
IN OUT
BT_RXD
1V81_VDD
C401 10p
100K
R417
C403
2.2u
C400
FB400
0.01u
PCM_CLK
PCM_TX
PCM_RX
PCM_SYNC
BT_RTS
BT_CTS
BT_CLK
CLK32K
DBB_BT_INT
FSYS_EN
BT_DBB_INT
nBT_RESET
BT_RXD
BT_TXD