Bluetooth Trouble - LG GM200 Service Manual

4.17 Bluetooth Trouble

TEST POINT
CIRCUIT
S N G F 0 0 3 2 2 0 1
0 ( 8
S N G F
A C S 2 4 5
N C 2
N C 1
A N T 4
L 4
C 4 0 3 1 0 0 0 p
F M _ A N T _ 1
1 0 0
C 4 0 4
4 7 p
LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
U40
Figure 4.18
> - S N G F 0 0 3 1 4 0 2
1 2 2 ) 0
0 0 3 1 4 0 2
0 F B A K F 7
F L 4 0 1
C 4 0 1
F E E D N I O U T
3 9 . p
G N D 1 G N D 2
R 4 0 2 L 4 0 1
L F B 2 1 2 G 4 5 S G 8 A 1 6 6
0 1
S F C Y 0 0 0 0 9 0 1
D I N 2 2 . n H
0 2
n H
C 4 0 5
F M _ R
4 7 p
F M _ L
2 6 M _ B T
B T _ 3 2 K
2 I S _ S C K
B T _ D B B _ C L K O N
2 I S _ I D
C 4 1 0
2 I S _ W S
D I N
B T _ N I T
B T _ W A K E U P
B T _ P C M _ T X
B T _ P C M _ R X
B T _ P C M _ S Y N C
B T _ P C M _ C L K
B T _ R E S E T
C411
C412
1
C410
1 ( % )
R 4 0 1
1 5 0 K
H 2
R E S
F 1
R I F O P
C 4 0 2 1 0 p
G 1
R I F O N
D 4
N C
D 1
F M R F _ N I P
C 1
F M R F _ N I N
L 4 0 3 5 6 n H
A 3
F M V C O _ L P
A 2
F M V C O _ L N
A 1
F M _ C V A R
C 4 0 6 0 1 . u K 6
A U I D O R
C 4 0 7 0 1 . u K 5
A U I D O L
J 5
A U I D O G N D
K 2
X T A L P
K 3
X T A L N
C 4 0 9 0 1 . u B 4
L P O N I
4 I 0 1
D 1 0
G I P O 7
B 8
G I P O 6
U 4 0 1
G 6
G I P O 5
4 I 0 2
E 6
B C M 2 0 4 8 S B 0
G I P O 4
4 I 0 3
G 9
G I P O 3
E U S Y 0 3 5 2 0 1
F 1 0 6
G I P O 2
B T _ N I T
H 9
G I P O 1
W A K E U P H 1 0
G I P O 0
E 7
A _ G I P O 7
B 7
A _ G I P O 6
K 9
A _ G I P O 5
E 9
A _ G I P O 4
P C M _ T X A 1 0
A _ G I P O 3
P C M _ R X B 1 0
A _ G I P O 2
C 1 0
P C M _ S Y N C
A _ G I P O 1
P C M _ C L K B 9
A _ G I P O 0
D 6
B T _ R S T
R S T _ N
C 4 1 6 0 1 . u
- 113 -
4. TROUBLE SHOOTING
BT_RESET
2 V 9 3 _ V E X T
F 7
U A R T _ R T S
U A R T _ C T S _ N B T _ U A
C 9 U A R T _ C T S
B T _ U A
U A R T _ R T S _ N
J 9 B T _ U _ T X
B T _ U A
U A R T _ R X D
K 1 0
B T _ U _ R X
U A R T _ T X D B T _ U A
J 6
T M 3
F 6
T M 2
J 7 V
T M 1
K 7
T M 0
D 5
L D O _ E N
V R E G _ C T L B T _ L D O _ E N
B 5
V R E G _ B T
A 5
V R E G F M _ D A C
A 6
V D D R 5 V
B 6
V D D R 3 V
K 8
V D D O 1 8 _ 1
A 8
V D D O 1 8 _ 2
F 9
V D D O 1 8 _ 3
G 5
V D D C 1
D 9
F B 4 0 1
V D D C 2
G 7
V D D C 3 H B 1 - M 1 0 0 5 6 - 0 1 J T
A 7
V D D C 4 S F B H 0 0 0 0 9 0 3
J 1 0
V D D C 5
E 1
V D D T F
E 2
V D D R F
K 1
V D D P L L
J 3
V D D X O
J 1
C 4 1 3 C 4 1 4 C 4 1 5
V D D L O
A 4
V D D F M 1
1 u 1 u 1 8 . p
B 1
V D D F M 2
B 3
V D D F M 3
J 4
V D D F M 4
K 4
V D D F M 5
A 9
V D D O 3 3 _ 1
E 1 0
V D D O 3 3 _ 2
J 8
V D D O 3 3 _ 3
C 4 1 7 C 4 1 8
0 1 . u 1 u
LGE Internal Use Only
R T _ R T S
R T _ C T S
R T _ T X
R T _ R X
2 V 9 3 _ V E X T
B A T
C 4 0 8
1 u
C 4 1 1 C 4 1 2
1 u 0 1 . u