Only For Training And Service Purposes - LG GM750 Service Manual

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F M
C 4 4 0 L 4 0 5
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C N 4 0 1
6
8
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1 2
2 m m
1 4
1
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M A X _ D M
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M A X _ D P
4
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5
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D 4 0 1
C 4 3 9
9
P R S B 6 8 . C
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1 1
1 3
1 5
G U 0 7 3 5 - P S - D E - 1 5 0 0
E N R Y 0 0 0 8 8 0 1
( R e v e s r e T y p ) e C 4
( R e v e s r e T y p , e C T 8 1 , 0 E N R Y 0 0 0 8 5 0 ) 1 3 9 .
R e . v 1 0 . 0 9 0 8 1 2
MUIC I2C
U402
High Speed USB Tranceiver
H g i h S
Copyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

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T A V
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N U S 3 0 6 5 M U T A G U 4 0 4
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D R A N I _ T H E R M A L
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6 3
G A T E C N T R L
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P S D 1 2 L - F
S R C D R A N I
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U404
CN401
FL401
C445
IC401
C456
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U S B H _ C S
U S B H
U S B H _ D
U S B H _ D
U S B H _ D
U S B H _ D
U S B H _ D
U S B H _ D
U S B H _ D
U S B H _ D
U S B H _
U S B H _
U S B
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M A X _ D M
M A X _ D P
U S B _ D I
V C H G _ V B U S
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F M 1 8 P C 1 0 4 R 1 C 3
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MUIC I2C
c e v i r e
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C 4 0 1 4 7 . u
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C 3 C 4
C H P I _ S E L T E S T
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B 1 B 2
A T A [ ] 0 D A T A 0 V C C I _ O 2
A 1 C 2
A T A [ ] 1 D A T A 1 R R E F
A 2 C 1
A T A [ ] 2 D A T A 2 D M
A 3 D 1
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A T A [ ] 3
A 5 E 2
S I P 1 5 0 8 A E T
A T A [ ] 4 D A T A 4 F A U L T
A 6 D 3
A T A [ ] 5 D A T A 5 D I
B 6 B 3
A T A [ ] 6 D A T A 6 C F G 2
C 6 B 4
A T A [ ] 7 D A T A 7 C F G 1
D 5 D 4
N E X T N X T P S W _ N
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S T O P S T P V B U S
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H _ D R I D R I R E G 3 V 3
E 1 F 5
C F G 0 X T A L 1
E 6 F 6
R E F 1 V 8 X T A L 2
C456
- 123 -
4. TROUBLE SHOOTING
M A X 1 4 5 2 6
V C H G _ V B U S V B A T
C 4 4 4
4 4 5
1 0 0 n
C I 4 0 1
0 0 n
D 5 D 2
V B B A T
C 5 A 4
C O M N 1 D N 1
B 5 A 5
C O M P 2 D P 2
B 4 B 3
M A X 1 4 5 2 6 E E W P + T C C 6
U D I U 1
A 3
U 2
R 4 1 2 B 1
R E S
F B 4 0 1
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M C I
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C A P A U D 1
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G N D
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C I S I E T
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V R E G _ M S M P _ 2 6 . V
M A X 1 4 5 2 6 _ 2 I
M A X 1 4
M A X 1 4 5 2 6 _ N I
IC401
U402
E G _ U S B _ 1 8 . V
Z = 9 0 o h m
U S B H _ D M
R o u e t T o g e h t r e
U S B H _ D P
R 4 1 8
V C H G _ V B U S
1 K
U S B H _ R E F _ C L K
LGE Internal Use Only
U S B H _ D M
U S B H _ D P
U A R T 3 _ R X
U A R T 3 _ T X
H S _ M C I
H S L
H S R
C _ S C L
5 2 6 _ 2 I C _ S D A
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