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Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
ʹΠΡΪΣΚΘΙΥ͑ι ͣͨ͑͡͡ͽ͑ͶΝΖΔΥΣΠΟΚΔΤ͑͟ͺΟΔ͑͑͟ͲΝΝ͑ΣΚΘΙΥ͑ΣΖΤΖΣΧΖΕ͑͟
ΟΝΪ͑ΗΠΣ͑ΥΣΒΚΟΚΟΘ͑ΒΟΕ͑ΤΖΣΧΚΔΖ͑ΡΦΣΡΠΤΖΤ
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
98/140
4. TROUBLE SHOOTING
4.16 Bluetooth Trouble
TEST POINT
CIRCUIT
Figure 4.16.1
TP1
TP2
TP3
TP4
TP5
TP6
TP8
TP7
TP1
TP2
TP3
TP4
TP5
TP6
TP7
TP8
100p
C347
TP300
TP301
TP302
C343
2.2u
TP303
TP304
TP306
1n
C303
100K
R303
L321 1.2n
C328
5.6p
BT_2V8
1n
C319
ANT303
SDBTPTR3015
2
3
1
4
DUMMY3
FEED
DUMMY2
DUMMY1
DNI
C320
BT_2V8
DNI
C321
5.6p
C330
L301
10n
2450MHz
LFB212G45BA1A220
FL304
5
6
7
4
8
3
2
1
NC
NC_DC
UB
3
G
1
G
B2
G2
B1
22n
L319
BT_2V8
15K
R313
51K
R320
MT6612
U302
43
5
9
53
8
91
51
41
01
11
21
32
31
33
32
25
30
29
6
7
3
4
1
40
26
24
27
28
36
39
2
37
38
13
20
21
22
16
18
17
14
D
A
P
D
N
G
RFTEST1
RFTEST2
RFTEST3
RF2G_N
RF2G_P
RES_IN
OSC_IN
TESTMODE
SRCLKENA
SYSRST_B
EXT32K
GPIO0
GPIO1
GPIO4
GPIO5
ECLK_SEL
UTXD1
URXD1
PCMCLK
PCMSYNC
PCMOUT
PCMIN
JTCK
JTRST_B
JTDI
JTMS
JTDO
JRTCK
1_
82
C
C
V
N
E8
2
O
DL
T
A
B
V
T
U
O_
82
C
C
V
2_
82
C
C
V
3_
82
C
C
V
4_
82
C
C
V
5_
82
C
C
V
82
D
D
V
T
U
O
O
DL
_2
1
D
D
V
1_
21
D
D
V
2_
21
D
D
V
C323
1u
10n
L300
L320
6.8n
TP307
C350
2p
BT_1V2
1u
C340
BT_2V8
0.1u
C342
2.2u
C341
VBAT
100K
R324
BT_2V8
BT_TXD
BT_RESET
BT_PCMCLK
BT_PCMIN
BT_PCMOUT
BT_PWR_EN
BTCLK_EN
BT_32K
BB_WAKEUP
BT_PCMSYNC
BT_RXD
BT_CLK26M
MT6612_Bluetooth
TP2
TP6
TP1
TP TP7
TP8
TP4
TP5
Содержание LG-A155
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