LG KG320 - Settings Menu; Date, Time, and Power Saving; Language and Call Settings

4. TROUBLE SHOOTING
- 76 -
4.7 BT Trouble
U202
U200
U201
U203
TEST POINT
SNGF0016701
BLUETOOTH
(GPIO 8)
(GPIO 34)
(GPIO 33)
(GPIO 2)
47K
R203
2V8_VMEM
2V8_VBT
ANT201
FEED
NC1
NC2
0.1u
VBAT
C203
C216
0.1u
8
9
PIO4
PIO5
10
RESETB
16
13
SPI_CLK
SPI_CSB
14
15
SPI_MISO
SPI_MOSI
12
UART_CTS
26
23
UART_RTS
UART_RX
24
27
UART_TX
VDD_1_8V
22
21
VDD_DIG
3
VDD_VREGIN
5
ANT
GND1
4
GND2
6
11
GND3
25
GND4
NC
28
PCM_CLK
20
19
PCM_IN
17
PCM_OUT
PCM_SYNC
18
1
PIO0
PIO1
2
7
PIO2
PIO3
U202
LBMA-2C67B2
C210
2.2u
3
4
VCC
5
U201
GND
2
1
A3
BYPASS
GND
B2
A1
VEN
VIN
C3 C1
VOUT
TC7SH08FS
U200
LP3985IBLX-2.8
22nH
L200
GND2
IN OUT
LFB212G45SG8A166
FL201
GND1
COM1
C3
COM2
A3
GND
B1
IN1
C2
IN2
A2
NC1
C1
NC2
A1
NO1
C4
NO2
A4
B4
V+
0.1u
2V8_VBT
MAX4717EBC-T
U203
C211
15p
2V8_VBT
C208
C200 0.01u
C207
NA
C205
1u
C204
15p
1u
C202
2.2u
C209
BT_EN
USC1
USC2
PCM_TX
USC0
PCM_RX
PCM_TX
USC_1
USC_2
PCM_EN
DEBUG_TX
DEBUG_RX
PCM_TX
USC3
PCM_SYNC8
_BT_RST
PCM_RX
PCM_SYNC8
CIRCUIT DIAGRAM
Figure 4-7