Only For Training And Service Purposes - LG GM750 Service Manual

A N T 1 0 6 A N T 1 0 5
A N T 1 0 1
R 1 0 3
D I N R 1
0
C 1 0 3
C 1 0 6
D I N
2 2 . n
R e . v 1 0 . 0 9 0 8 1 2
A N T _ S E L 3
A N T _ S E L 2
A N T _ S E L 0
A N T _ S E L 1
D C S _ P C S _ T X
D C S 1 ( 7 1 0 1 - 7 8 5 M H ) z
P C S 1 ( 8 5 0 1 - 9 1 0 M H ) z
G S M _ T X
G S M 8 5 0 8 ( 2 4 8 - 4 9 M H
G S M 9 0 0 8 ( 8 0 9 - 1 5 M H
F L 1 1 0
B 7 6 8 1
C 1 8 4 3 3 p C 1 9 6 3 3 p
W C D M A _ 9 0 0 _ R T X A N T T X
R X 1
L 1 1 5
R X 2
1 0 n
G N D 1
G N D 2 G N D 5
G N D 3 G N D 4
S D M Y 0 0 0 1 6 0 1
B a n d V I I I
TP2
F L 1 0 4
S A Y F P 1 G 9 5 A A 0 B 0 0
6 1
C 1 4 8 3 3 p C 1 4 7 8 2 . p
W C D M A _ 2 1 0 0 _ R T X A N T R X
3
T X
L 1 0 7
1 2 . n 2 9
G N D 1 G N D 6
4 8
G N D 2 G N D 5
5 7
G N D 3 G N D 4
S D M Y 0 0 0 1 9 0 1
B a n d I
F L 1 1 2
A C M D 7 - 4 0 7
C 2 0 4
C 1 0 5 6 8 . p 6 1
W C D M A _ 1 9 0 0 _ R T X A N T R X
1 n
3
T X
L 1 0 3
2 7 . n
2 9
G N D 1 G N D 6
4 8
G N D 2 G N D 5
5 7
G N D 3 G N D 4
S D P Y 0 0 0 4 7 0 1
B a n d I I
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Only for training and service purposes

0 1
C 1 6 6
C 1 1 5
3 3 . n
1 0 0 p
C 1 1 0 R e . v 1 0 . 0 9 0 8
C 1 1 1
1 8 n
1 p
C 1 6 8 1 n
C 1 5 8 1 n
C 1 4 9 1 n
C 1 3 7 1 n
R 1 1 8
4 7
7 d B
R 1 0 6
7 5
) z
) z 1 1 d B
C 2 1 1 3 3 p
C 1 9 3 2 7 . p
R X _ W C D M A _ 9 0 0 _ P
L 1 1 4 L 1 0 5
D I N 6 8 . n
C 1 3 0 2 7 . p
R X _ W C D M A _ 9 0 0 _ M
R
R 1 2
1 5 0
W 2 1 0 0 T X 1 ( 9 2 0 1 - 9 8 0 M H ) z
C 1 3 4 3 3 p
C 1 1 4 3 3 p C 1 0 9 3 3 p
R X _ W C D M A _ 2 1 0 0
L 1 0 9
1 8 . n
R 1 1 6
5 1
W 1 9 0 0 T X 1 ( 8 5 0 - 1 9 1 0 M H ) z
C 2 2 2
3 3 p
L 1 3 5 C 2 3 0
C 1 6 9
R X _ W
1 2 . n
1 2 . p 1 0 0 p
L 1 2 5
5 6 . n
C 1 0 1 L 1 0 1
2 2 . p D I N
L 1 3 2 L 1 3 4 C 2 3 1
R X _ W
1 2 . n
5 6 . n
1 0 0 p
C 2 0 8
1 2 . p
D C B o l c k
B a U l n i C c r u t i
S W 1 0 1
K M S 5 - 1 8
C 1 0 8 3 3 p
1 2
S K Y 7 7 5 2 1
7
B S 1
6
B S 2
_
1
H B _ R F _ N I
3
L B _ R F _ N I M
2
G N D 1 R
1 1
G N D 2
1 2
U 1 0 7
G N D 3
2 1
G N D 4
2 2
G N D 5
2 3
G N D 6
2 4
G N D 7
2 5
G N D 8 W C
2 6
G N D 9 W C
2 7
G N D 1 0 W C
2 8
G N D 1 1
2 9
G N D 1 2 V
3 0
G N D 1 3 V
2 m m
V B A T
1 ( 6 0
C 1 8 6
C 2 1 7
3 3 . n
3 3 p
C 2 3 2 C 2 2 6
1 2 . p
1 n
U 1 0 1
A W T 6 2 2 4 R
R e v C . 0 6 0 3
1 5
1 1 9
P G N D
P D E T _ N I 1 4
R F O u : t
G N D 3 V E N _ 9 0 0
4 7
1 3
R F O U T _ 9 0 0 R F N I _ 9 0 0
0 R 1 2 1 D C B o l c k n i g C a . p r o 1 2
V C C V M O D E 1
1 5 0 n o s h u t n L
1 1
V C C A V B A T T
L e n t g : h 2 0 m m 1 0
G N D 2 N C _ V M O D E 2
9
C 1 7 8 C 1 9 0 G N D 1 R F N I I _ M T
8
R F O U T I _ M T V E N I _ M T
1 2 . n
3 3 p
L 1 1 8 S M P Y 0 0 1 8 8 0 1
1 p
R e v C .
TP3
1 m m
+ V P W R
C 1 0 4 C 1 7 6
1 ( 6 0 ) 8
1 0 u 1 0 0 p U 1 0 2
R E V B . C E R A M C I
A W T 6 2 7 8 R
1 1
P G N D
1 0
V C C V B
9
G N D 3 R
C 2 0 5 C 2 2 1
8
R F O U T V M O
7
3 3 p 2 2 . p
G N D 2 V M O
6
G N D 1 V E N A
L 1 2 4 L 1 0 6
3 3 . n D I N
C D M A _ 1 9 0 0 _ P
C D M A _ 1 9 0 0 _ M
- 101 -
4. TROUBLE SHOOTING
TP1
L 1 3 3
1 0 0 n
1 7
A N T
8
T X E N
9
O D E
1 0
S V D TP2
1 3
R X 4
1 4
R X 3
1 5
R X 2
1 6
R X 1
1 8
W C D M A _ 2 1 0
D M A 1
1 9
D M A 2 W C D M A _ 9 0 0
2 0
W C D M A _ 1 9 0
D M A 3
R 1 0 2
4
A P C
5
2 2 . K
B A T T
C 1 3 8
3 9 p
2 C 1
C 0 6 2 9
) 8
1 0 u 4 7 p
1 m m
+ V P W R
C 1 0 7
C 1 1 7
1 ( 6 0 ) 8
2 2 u
1 0 0 p F L 1 0 3
S F S Y 0 0
B 9 4 4 2
E C T H 0 0 0 1 9 0 3 L 1 2 7
4 1
R e . v 1 0 .
O U T N I
D o n t o u s e a c e a r m c i C a . p
2 7 . n G 3 G 2 G 1
5 3 2
W C D M A _ 9 0 0 _ O N L 1 1 1
B
C 1 9 5 1 0 0 p D I N
1
C 1 1 6
2
3
3 3 p
4
5
C 1 8 5
6
7
3 3 p
R e . v 1 0 .
F L 1 0 9
S F S Y 0 0
B 9 4 1 4
L 1 0 8
4 1
W C D M A _ P A _ R 0 O U T N I
2 7 . n
G 3 G 2 G 1
W C D M A _ 2 1 0 0 _ O N
5 3 2
C 2 0 3
D I N
TP4
C 2 1 8
2 2 0 p W
F L 1 0 1
S F S Y 0 0 3 6 6 0 1
B 9 6 4 0
1
L 1 2 3
A T T
C 2 2 7 C 2 2
2 4 1
F N I O U T N I
2 2 . n
3 G 3 G 2 G 1
D E 2 3 3 p
3 3 p R e v C .
4 5 3 2
W C D M A _ P A _ R 0
D E 1
5
W C D M A _ 1 9 0 0 _ O N
B L E L 1 2 8
D I N
LGE Internal Use Only
0 _ R T X
_ R T X
0 _ R T X
G S M _ P A _ R A M P
W 9 0 0
3 7 6 0 1
L 1 0 4
W C D M A _ 9 0 0 _ T X _ O U T
3 3 . n
a n d 8 C 1 2 3
D I N
3 5 1 0 1
C 1 3 5
W C D M A _ 2 1 0 0 _ T X _ O U T
3 3 p
C 1 2 5
3 9 . n
R e . v 1 0 .
W 2 1 0 0
1 9 0 0
4
W C D M A _ 1 9 0 0 _ T X _ O U T
L 1 2 9
4 7 . n
R e v C .