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4.19 FM Radio Trouble
TEST POINT
CIRCUIT
BLUETOOTH & FM RADIO
ANT200
ANT201
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
C207
U200
C208
Figure 4-19
FM_ANT
C200
DNI
R200
0
PCM_TX
BT_PCM_TX
PCM_RX
L200
R201
BT_PCM_RX
15nH
DNI
TP1
PCM_CLK
BT_PCM_CLK
PCM_SYNC
BT_PCM_SYNC
nBT_RESET
BT_32K
(EB2_ADDR_10)
C201
C202
DNI
FM_L
FM_R
26M_BT
2V93_VEXT
BT_UART_TX
BT_UART_RX
BT_UART_RTS
R202
R203
BT_UART_CTS
47K
47K
D_BT_IQ
(GPIO_172)
BT_WAKEUP
BT_D_IQ
(GPIO_055)
BT_INT
BT_MAIN_CLK_EN
- 109 -
4. TROUBLE SHOOTING
TP1
U200
EWFMLBAXX
A6
FM_ANT
E1
BT_ANT
E2
GND1
B1
E3
PCM_IN
GND2
B2
E4
PCM_OUT
GND3
E5
GND4
G7
E6
A_GPIO4
GND5
H3
E7
A_GPIO5
GND6
C5
F1
A_GPIO6
GND7
B7
F2
A_GPIO7
GND8
F3
GND9
C1
F4
PCM_CLK
GND10
C2
F5
PCM_SYNC
GND11
B4
F6
RESET
GND12
C4
F7
SLEEP_CLK
GND13
0.1u
D1
GND14
I3
D2
VAFL
GND15
I4
D3
VAFR
GND16
I5
D4
XTALN
GND17
I6
D5
XTALP
GND18
D6
GND19
BT_TX
G1
D7
UART_RX
GND20
BT_RX
H1
A1
UART_TX
GND21
BT_RTS
H2
H6
UART_CTS
GND22
BT_CTS
G2
I7
UART_RTS
GND23
I1
GND24
G4
A5
TM0
GND25
G3
A7
TM3
GND26
B5
GND27
H5
B6
GPIO0
GND28
H4
GPIO1
G6
GPIO2
G5
I2
GPIO3
VIO
C6
A2
GPIO4
VDDR3V
H7
A3
GPIO5
VBATT
B3
A4
GPIO6
REGBT
C7
C3
GPIO7
VREG_CTL
R207
100K
SMZY0015001
1u
VBAT
2V93_VEXT
REGBT
BT_LDO_EN
(EB2_ADDR_04)
C206
C207
C208
1u
1u
LGE Internal Use Only
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