LG KF750 Service Manual page 33

3. TECHNICAL BRIEF
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A
A C C
A C C
A C C
A C C
A C C _ G P 2 0 _ U S B _ C S _ P D
A C
A C
A C
A C
A C
LGE Internal Use Only
A C C _ G P 0 0 _ U S B _ S T P
A C C _ G P 0 1 _ U S B _ D R I
C C _ G P 0 2 _ U A R T 0 _ R X
C C _ G P 0 3 _ U A R T 0 _ T X
A C C _ G P 0 4 _ U S B _ C L K
A C C _ G P 0 5 _ U S B _ N X T
_ G P 0 6 _ U S B _ D A T 4
_ G P 0 7 _ U S B _ D A T 5
_ G P 1 0 _ U S B _ D A T 6
_ G P 1 1 _ U S B _ D A T 7
USB_DAT1
USB_DAT0
USB_DAT2
Figure 3-1-8. Schematic of Asta USB block
A C C _ G P 0 4 _ U S B _ C L K
U S B _ D A T 0
U S B _ D A T 1
U S B _ D A T 2
C _ G P 2 2 _ U S B _ D A T 3
C _ G P 0 6 _ U S B _ D A T 4
C _ G P 0 7 _ U S B _ D A T 5
C _ G P 1 0 _ U S B _ D A T 6
C _ G P 1 1 _ U S B _ D A T 7
A C C _ G P 0 5 _ U S B _ N X T
A C C _ G P 0 0 _ U S B _ S T P
A C C _ G P 0 1 _ U S B _ D R I
0 6 0 3
U S B
Figure 3-1-9. Schematic of USB Transceiver
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P 2
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M 9
N 4
P 3
P 4
R 4
R 3
R 2
L4
L3
M4
V B A T V D D E _ 1 V
C 6 0 0 C 6 0 1
0 1 . u 4 7 . u
0 6 0 3
1 0 V
C 3 C 4
C H P I _ S E L T E S T
A 4 B 5
C L O C K V C C I _ O 1
B 1 B 2
D A T A 0 V C C I _ O 2
A 1 C 2
D A T A 1 R R E F
A 2 C 1
D A T A 2 D M
A 3 D 1
U 6 0 1
D A T A 3 D P
A 5 E 2
S I P 1 5 0 8 A E T
D A T A 4 F A U L T
A 6 D 3
D A T A 5 D I
B 6 B 3
D A T A 6 C F G 2
C 6 B 4
D A T A 7 C F G 1
D 5 D 4
N X T P S W _ N
D 6 F 4
S T P V B U S
E 5 E 3
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
0 6
T a r n c s e v i e f r r o H g i h S p e e d
Copyright © 2008 LG Electronics. Inc. All right reserved.
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A C C _ G I P O _ 0
A C C _ G I P O _ 1
A C C _ G I P O _ 2
A C C _ G I P O _ 3
A C C _ G I P O _ 4
A C C _ G I P O _ 5
A C C _ G I P O _ 6
A C C _ G I P O _ 7
A C C _ G I P O _ 8
A C C _ G I P O _ 9
USB_DAT_VP
USB_SE0_VM
USB_OE
8
R 6 0 5 1 K
V B
U S
0 3 0 6 0 3
Only for training and service purposes
U S B _ D M
U S B _ D P
U S _ U S B _ T R X
B _ X T A L 1