Schematic Diagrams
B - 30 Audio Codec ALC269
B.Schematic Diagrams
Audio Codec ALC269
R 5 2 9
0 _ 04
MI C 1 _ L
C 5 1 4
4 . 7 u_ 6 . 3 V _X 5 R _ 0 6
M I C 2 _L
I N T _M I C
C 5 1 1
4 . 7 u_ 6 . 3 V _X 5 R _ 0 6
M I C 2 _R
R345 & R350
AL269 2.2K_04
VT1802P 4.7K_04
R343 & R351
AL269 1K_04
VT1802P 75_04
MI C 1 -V R E F O -L
MI C 1 _R
R 3 4 3
1K _ 0 4
MI C 1 -R
[ 3 0]
MI C 1 -L [ 3 0 ]
R 3 4 5
2. 2 K _ 0 4
MI C 1 -V R E F O -R
R 3 5 1
1K _ 0 4
R 3 5 0
2. 2 K _ 0 4
MI C 1 _L
ALC269 20K_1%_04
VT1802P 5.1K_1%_04
MI C 1 _ R
C118
AL269 680p
VT1802P 330p
S P K O U T R -
[ 30 ]
S P K OU TR +
[ 3 0]
LD O_ C A P
C 4 9 8
10 u _ 10 V _ Y 5 V _ 0 8
C 2 7 0
0 . 1u _ 1 6V _Y 5V _0 4
C 2 7 1
0 . 1 u_ 1 6 V _Y 5 V _0 4
C 4 99
*1 0 u_ 1 0V _Y 5V _0 8
P V D D 1 _ 2
A U D G
H D A _ R S T#
H E A D P H ON E -R [ 3 0 ]
C 2 8 1
0 . 1u _ 1 6V _ Y 5V _ 0 4
C 29 9
0 . 1 u _1 6 V _ Y 5 V _ 04
C 51 3
10 u _ 10 V _ Y 5 V _ 0 8
R 5 2 7
* 0_ 0 4
C 28 0
1 0 u_ 1 0 V _Y 5 V _0 8
C 2 83
0 . 1 u _1 6 V _ Y 5 V _ 04
3 . 3V S
3 . 3 V S _ A U D
D V D D _ I O
3 . 3 V S _ A U D
1 . 5V S
B E E P _R
J_SPKL1
2
1
C 4 97
0. 1 u _ 16 V _ Y 5 V _ 0 4
C 4 9 6
1 0u _ 1 0V _ Y 5V _ 0 8
ALC269 2.2u
VT1802P NC
C 3 0 4
2 . 2 u _6 . 3 V _ X5 R _0 6
C 3 0 1
0 . 1 u _1 6 V _ Y 5 V _ 04
ALC269 2.2u; VT1802P 10u
OP V E E -A L C 26 9
C B P -A L C 2 6 9
MI C 2 _ R
MI C 2 _ L
S P K OU T L-
MI C 1 -L _ R
MI C 1 -R _R
3 . 3 V S [ 3 , 9 , 1 0, 1 1 , 1 2, 1 3 , 1 4, 1 5 , 1 6, 17 , 1 8 , 19 , 2 0 , 23 , 2 4 , 25 , 2 7 , 28 , 3 0 , 3 1, 3 6 ]
S E N S E _ A
5 V S [ 11 , 1 2 , 19 , 2 0 , 25 , 3 0 , 31 , 3 6 , 37 ]
1 . 5 V S [ 1 9 , 3 1]
A U D G
E A P D _ M OD E
Ve ry cl os e t o Au di o C od ec
7 5 C o m p o n e n t .
La yo ut N ot e:
D M I C -D A T
Closed to SB.
D M I C -C LK
H P _S E N S E
M I C _ S E N S E
S P K OU T L+
C 2 7 2
2 . 2 u_ 6 . 3 V _X 5 R _ 0 6
R 52 3
20 K _ 1 %_ 0 4
A Z _ S Y N C _R
R 36 9
2 0 K _1 % _ 04
C 50 2
0 . 1 u_ 1 6 V _Y 5 V _0 4
R 35 4
33 _ 0 4
R 36 8
3 9 . 2K _ 1 % _0 4
DIGITAL
ANALOG
U 2 9
A LC 26 9 Q-V B 5-G R
DV
D
D1
1
GP I O 0
2
GP I O 1
3
P D #
4
S D A T A -O U T
5
B I T -C L K
6
D
VSS2
7
S D A T A -I N
8
DV
D
D
-I
O
9
S Y N C
1 0
R E S E T #
1 1
P C B E E P
1 2
S en s e A
1 3
L I N E 2 -L
1 4
L I N E 2 -R
1 5
M I C 2 -L
1 6
MI C 2 -R
1 7
S en s e -B
1 8
J D R E F
1 9
M ON O-OU T
2 0
M I C 1 -L
2 1
MI C 1 -R
2 2
L I N E 1 -L
2 3
L I N E 1 -R
2 4
AVSS1
26
V R E F
2 7
LD O_ C A P
2 8
MI C 2- V R E F O
2 9
M I C 1 -V R E F O-R
3 0
M
IC
1
-V
R
E
F
O
-L
31
H P -O U T -L
3 2
AVSS
2
37
OP V E E
3 4
C B N
3 5
C B P
3 6
H P -OU T -R
3 3
PVD
D
1
39
S P K -L +
4 0
S P K -L -
4 1
P
VSS1
42
PVSS2
43
S P K -R +
4 5
S P K -R -
4 4
PVD
D
2
46
S P D I F C 2 / E A P D
4 7
S P D I F O
4 8
AVD
D
2
38
AVD
D
1
25
GN
D
49
C 2 7 9
2 . 2 u_ 6 . 3 V _X 5 R _ 0 6
C 50 3
0 . 1 u_ 1 6 V _Y 5 V _0 4
C 30 7
4 . 7 u_ 6 . 3 V _ X5 R _ 0 6
C 30 6
4 . 7 u_ 6 . 3 V _ X5 R _ 0 6
A U D G
A U D G
A U D G
H D A _B I TC L K
[ 1 3 ]
H D A _ R S T #
[ 13 ]
H D A _ S D I N 0
[ 13 ]
H D A _ S Y N C
[ 1 3 ]
H D A _S D OU T
[ 1 3 ]
MI C 2 -V R E F O
A Z _ S D I N 0 _ R
S P D I F O
MI C 1 -V R E F O-R
EMI Require
H E A D P H O N E -L
H E A D P H O N E -R
C B N - A L2 6 9
R130
AL269 4.7K_04
VT1802P 2.2K_04
Q2 5
MT N 7 0 0 2Z H S 3
G
D
S
E A P D _M OD E
C 5 1 2
*1 0 0 p_ 5 0 V _N P O_ 0 4
R 5 67
0 _0 4
MON O-O U T
C 2 9 1
2 2 p_ 5 0 V _N P O_ 0 4
C 5 09
1 0 u _1 0 V _ Y 5 V _ 0 8
L 40
H C B 1 0 0 5K F -12 1 T 20
1
2
C 51 0
0 . 1 u_ 1 6 V _Y 5 V _0 4
C 4 9 4
1u _ 6 . 3V _ Y 5V _ 0 4
5 V S _ A U D
A U D G
VT1802P
ALC269 VB
A U D G
5 V S
AUDIO CODEC
LI N E 2 -L
LI N E 2 -R
S E N S E -B
S P K OU TL -_ L
C 2 93
* 1 u_ 6 . 3 V _Y 5 V _0 4
S P K O U T L-
S P K OU TL + _ L
L2 4
F C M 10 0 5 K F -12 1 T 03
1
2
S P K O U T L+
C 2 8 9
*1 8 0p _ 5 0V _ N P O_ 0 4
C 2 9 5
*1 8 0p _ 5 0V _ N P O_ 0 4
L 2 3
F C M1 0 05 K F -1 2 1T 0 3
1
2
7/16
J _ S P K L 1
85 2 0 4-0 2 0 01
1
2
I N T _ MI C
MI C 2 -V R E F O
1
C 1 18
6 8 0 p_ 5 0 V _X 7 R _ 0 4
2
J_INTMIC1
J _ I N T MI C 1
8 8 2 66 -0 2 00 1
1
2
R 13 0
4. 7 K _ 0 4
R 12 8
1K _ 0 4
LI N E 1 -L
MI C 1-V R E F O -L
LI N E 1 -R
Q 39
*2 N 7 0 02 W
G
D
S
A U D G
H E A D P H ON E - L
3 . 3 V S
H E A D P H ON E - R
R 5 68
* 2 20 K _ 0 4
Q 3 8
* A O3 4 1 5
G
D
S
R 5 7 1
*1 0 K _ 04
A U D G
C 53 8
* 10 u _ 6. 3 V _ X 5R _ 06
R 5 7 0
*1 0 K _0 4
Headphone Anti-Pop Circuit
E A P D _ MO D E
R 5 69
* 4 . 7K _ 0 4
Q4 0
*2 N 70 0 2 W
G
D
S
3 . 3V S
V R E F -A L C 26 9
PD#
AZ_RST#
20 ms
5V S
Spe a ke r 4 ohm- -- --- > 40 mil s
SPKO UTR+ ,R- ,L+ ,L- Tra ce wi dth
Spe a ke r w ire le ngth l e ss tha n 8 00 0mi ls , I t don't ne e d LC Fi lte r.
3.3 VS_ AUD
Spe a ke r 8 ohm- -- --- > 20 mil s
MI C _ S E N S E [ 3 0 ]
C 2 9 8
2 . 2 u _6 . 3 V _ X5 R _0 6
H E A D P H ON E -L [ 30 ]
B E E P _C
B E E P
C
A
A
D 13
B A T 5 4 C W G H
1
2
3
C 3 09
1u _ 6 . 3V _ Y 5V _ 0 4
R 3 6 5
4. 7 K _ 0 4
R 3 6 7
4 7K _ 0 4
C 3 08
10 0 p _5 0 V _ N P O _0 4
H D A _ R S T #
Q 2 7
*B S S 1 3 8_ N L
G
D
S
FOR VOLUMN
ADJUST
H D A _ S P K R
[ 13 ]
K B C _B E E P
[ 27 ]
D 1 9
R B 7 51 S -4 0 C 2
A
C
R 51 4
*1 0 0K _ 0 4
Q 32
* MT N 7 0 0 2Z H S 3
G
D
S
R 51 8
1 0 K _0 4
D 1 8
R B 7 51 S -4 0 C 2
A
C
5 V S
5 V S
K B C _ MU TE #
[ 27 ]
JD R E F
H D A _ R S T #
P D #
D 2 1
* R B 7 5 1 S -40 C 2
A
C
5 V S
R 5 1 0
*2 8 mi l _0 6
.
L 3 9
H C B 1 6 08 K F -1 2 1 T2 5
H P _ S E N S E [ 3 0 ]
Sheet 29 of 43
Audio Codec
ALC269
Summary of Contents for W270HUQ Series
Page 1: ...W270HUQ Series ...
Page 2: ......
Page 3: ...Preface I Preface Notebook Computer W270HUQ Service Manual ...
Page 24: ...Introduction 1 12 1 Introduction ...
Page 42: ...Disassembly 2 18 2 Disassembly ...
Page 45: ...Top A 3 A Part Lists Top 灰 色 Figure A 1 Top ...
Page 46: ...A 4 Bottom A Part Lists Bottom Figure A 2 Bottom ...
Page 47: ...SATA BLU RAY COMBO A 5 A Part Lists SATA BLU RAY COMBO 志精 Figure 3 SATA BLU RAY COMBO ...
Page 48: ...A 6 SATA DVD DUAL A Part Lists SATA DVD DUAL Figure 4 SATA DVD DUAL 志精 ...
Page 49: ...LCD A 7 A Part Lists LCD Figure A 5 LCD ...
Page 50: ...A 8 LCD A Part Lists ...
Page 95: ...www s manuals com ...