LG KP260 - Bluetooth + FM Radio

4.4 Bluetooth + FM Radio
- 52 -
4. TROUBLE SHOOTING
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
U200
U203
TP1
TP2
TP3
TP4
TP5
TEST POINT
CIRCUIT
(150mA)
EUSY0232812
C244
1u
U203
R1114D281D-TR-F
6
CE
GND1
2
GND2
5
NC
4
1
VDD VOUT
3
VBAT
R222
DNI
C243
1u
0
R217
R221
0
2V8_BT
BT_LDO_EN
Balun Filter
SFDY0002601
SMZY0015801
BT + FM RADIO
0R205
FL200
LFB212G45BA1A220
B1
5
B2
7
G1
4
6
G2
8
G3
1
NC
2
NC_DC
3
UB
1
R203
15p
C211
R204
560
2.2
R207
VBALUN_BT
VBALUN_BT
2V8_BT
R201
1
TP201
C223 47n
2V8_BT
L203 470nH
C230
820p
AMAN802012LG13
ANT200
FEED
GND1
GND2
R208 0
NA
L200
220n
1R202
C224
TP204
15p
33nHL202
C220
0
C240
2.2u
R200
C237
0.1uF
2V8_VEXT
TP203
TP208
R206 0C228 1000p
0.1u
C239C238
2.2u
FB201
L206
22nH
TP200
1u
C205
TP206
TP207
TP205
C226 1000p
C216
0.1u
R214 470K R213
47K
DNI
C241
C210
2.2u
22n
C217C215
15p
L201
NA
C236
DNI
15p
C235
C231
1.5p
C204
0.1u
FB200
H2
VSS_PADS
G8 C10
VSS_PIO
D2
VSS_RADIO_1
E2
VSS_RADIO_2 VSS_RADIO_3
F2
K2
XTAL_IN
XTAL_OUT
J2
F8
_RST VREGENABLE_H
H3
VREGENABLE_L VREGIN_H
J5 J1
VREGIN_L VREGOUT_H
K5
VSS_ANA_1
C3
VSS_ANA_2
D3
VSS_ANA_3
E3
VSS_ANA_4
F3
VSS_ANA_5
G3
VSS_ANA_6
J3
VSS_CORE
B6 G9
VSS_DIG
VSS_FM1_1
B2 C1
VSS_FM1_2
VSS_FM2
B4
VSS_LO
H5
UART_RX
K7
UART_TX
J8
K6
USB_DN
USB_DP
J7
VDD_ANA
K1 A6
VDD_AUDIO
VDD_CORE_1
A7 H10
VDD_CORE_2
A2
VDD_FM
VDD_LO
H1 G10
VDD_PADS
VDD_PIO
B10
VDD_RADIO_1
C2 G2
VDD_RADIO_2
VDD_USB
J6
H4
F9
F10
PIO_7 PIO_8
C5
PIO_9
B7
RF_N
G1
F1
RF_P
D1
RX_N
RX_P
E1
H8
SPI_CLK SPI_MISO
K9
SPI_MOSI
K10
SPI__CS
J9
SPKR_L
A5
A4
SPKR_R
C4
TEST_EN
UART_CTS
H6
UART_RTS
D9
PCM2_IN
E10
PCM2_OUT
D8
D10
PCM2_SYNC
PCM_CLK
H9
PCM_IN
K8
H7
PCM_OUT
J10
PCM_SYNC
PIO_0
A10
A9
PIO_1 PIO_10
A8 C6
PIO_11 PIO_2
B8 B9
PIO_3 PIO_4
E9 E8
PIO_5 PIO_6
U200
BLUECORE5-FM
AIO_0
K4
J4
AIO_1
B5
AUX_DAC
AU_REF
A3
CLK_32K
C9
B3
FILT_EXT
FM_N
A1
B1
FM_P
C7
I2C_CLK
I2C_DATA
C8
K3
LO_REF
PCM2_CLK
TP202
820pC229
0.01uC227
15p
C219
15p
C232
BT_CTS
USC0
PCM_TX_BT
PCM_RX_BT
PCM_SYNC
AIT_CLKON
BT_RTS
_BT_RST
FM_R
FM_L
BT_DBB_INT
BT_MAIN_CLK_EN
DEBUG_TX
DEBUG_RX26M_BT
FM_ANT
BT_32K