LG KP270 Service Manual page 100

BLUETOOTH_BC
ANT401
R422 0
NC1
NC2 FEED
L402 C446
NA DNI
CLK32K
TP11
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
FL403
IN OUT
GND1 GND2
LFB212G45SG8A166
(1%)
R413 150K
C445 10p
TP10
TP3
C447 470p
BT_CLK
C449 1000p
R419 47K
C450 10p
R423 CLK_FM
100K
BT_VCXO_EN
TP5
TP408
BT_INT
TP409
DBB_BT_INT
4. TROUBLE SHOOTING
2V85_VBT
TP1
FB401
FB402
1V8_SD
C434 C435
2.2u 2.2u
Close to VREG1
Close to VDDR3V
FB403
TP2
C440
0.1u
Close to VDDO
J3
RES
C1
RFIOP
E1
RFION
D1
RFTUNE
U403
J2
VCTRIFP
J5
XTAL_P BCM2046SB1
J4
XTAL_N
A5
LPO_IN PCM_IN_SPDIF_IF_SD_IN
PCM_OUT_SPDIF_OUT_SD_OUT
A9
SCL_TX_PU_TDO_N PCM_SYNC_TX_PU_TDO
A8
SDA_TX_PU_TDO
H7
GPIO7_TX_PU_TDDN_TX_PU_TDO_USB
H8
PA_CTL_GPIO6_TX_PU_TDD_TX_PU_T
G9
XTAL_PD_GPIO5_TX_PU_TDO_TX_PU_
F9
RF_ACTIVE_GPIO4
E9
BT_PRIORITY_STATUS_GPIO3
A6
TX_CONFX_WLAN_ACTIVITY_GPIO2
B6
HOST_WAKE_USB_DETACH_GPIO_1
B5
BT_WAKE_GPIO_0
- 101 -
C436 C437 C438
1u 0.1u 2.2u
Close to VDDVCO Close to VDDIFP
1V8_SD
C442
2.2u
Close to VDDTF
B4
TP403
RST_N BT_RESETn
H5
TM2 (256KHz)
H6
TM1
J6
TP6
TM0
D4
TST1
TP7
F8 R417 0
PCM_CLK_SCK BT_PCM_CLK
E8 R418 0
BT_PCM_TX
D9 R420 0
BT_PCM_RX
D8 R421 0
BT_PCM_SYNC
TP8
C8 TP404
UART_CTS_N BT_UART_RTS
C9 TP405
UART_RTS_N BT_UART_CTS
B9 TP406
UART_RXD BT_UART_TX
B8 TP407
UART_TXD BT_UART_RX
J8
HUSB_DN
TP9
J7
HUSB_DP
LGE Internal Use Only
FB404