Schematic Diagrams
AUDIO CODEC ALC269 VIA1802 B - 31
B.Sch
e
m
a
tic D
iag
rams
AUDIO CODEC ALC269 VIA1802
R 5 29
0 _0 4
M I C 1 _ L
C 51 4
4. 7 u _ 6. 3 V _ X 5 R _ 06
MI C 2_ L
I N T_ M I C _ R
C 51 1
4. 7 u _ 6. 3 V _ X 5 R _ 06
MI 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 34 3
1 K _ 04
M I C 1 -R
3 1
M I C 1 -L
3 1
R 34 5
2 . 2 K _ 04
MI C 1-V R E F O- R
R 35 1
1 K _ 04
R 35 0
2 . 2 K _ 04
MI C 1_ L
1 20 7
ALC269 20K_1%_04
VT1802P 5.1K_1%_04
M I C 1 _ R
C118
AL269 680p
VT1802P 330p
S P K OU T R -
3 1
S P K O U T R +
3 1
L D O _C A P
C 3 9 5
0 . 1 u_ 1 6 V _Y 5 V _0 4
C 49 8
1 0 u _1 0 V _ Y 5 V _ 08
C 27 0
0. 1 u _ 16 V _ Y 5 V _ 0 4
C 2 7 1
0. 1 u _ 16 V _ Y 5 V _ 0 4
C 4 9 9
* 10 u _ 10 V _ Y 5 V _ 0 8
P V D D 1 _ 2
A U D G
H D A _ R S T #
H E A D P H O N E - R 3 1
C 2 81
0 . 1 u _1 6 V _ Y 5 V _ 0 4
C 2 9 9
0 . 1u _ 1 6V _Y 5V _0 4
C 5 1 3
1 0 u_ 1 0 V _Y 5 V _0 8
R 5 27
*0 _ 04
C 2 8 0
10 u _ 10 V _ Y 5 V _ 0 8
C 2 8 3
0 . 1 u_ 1 6V _Y 5V _0 4
3 . 3 V S
3 . 3 V S _A U D
D V D D _ I O
3 . 3V S _ A U D
1 . 5 V S
B E E P _ R
J_SPKL1
2
1
C 49 7
0 . 1 u_ 1 6 V _Y 5 V _0 4
C 4 96
1 0 u _1 0 V _ Y 5 V _ 08
ALC269 2.2u
VT1802P NC
C 3 04
2 . 2u _ 6 . 3V _X 5 R _ 0 6
C 3 01
0 . 1u _ 1 6V _ Y 5V _0 4
ALC269 2.2u; VT1802P 10u
E A P D _M OD E
O P V E E -A L C 2 6 9
C B P -A L C 2 6 9
M I C 2 _ R
M I C 2 _ L
S P K OU TL -
M I C 1 - L _R
M I C 1 - R _ R
3 . 3 V S
3 , 9, 1 0 , 1 1, 1 2 , 1 3, 1 4 , 1 5, 1 6 , 1 7 , 18 , 1 9 , 20 , 2 3 , 24 , 2 5 , 26 , 2 8 , 29 , 3 1 , 3 2, 3 7
S E N S E _ A
1 . 5 V S
1 9, 3 2
A U D G
E A P D _ MO D E
V er y clo se t o A ud io C ode c
7 5 C o m p o n e n t .
L ay ou t No te :
D MI C - D A T
Clo sed to SB.
D MI C - C L K
H P _ S E N S E
MI C _S E N S E
S P K OU TL +
C 27 2
2. 2 u _ 6. 3 V _ X 5 R _ 06
R 5 2 3
2 0 K _1 % _ 04
A Z _ S Y N C _ R
R 3 6 9
20 K _ 1 % _0 4
C 5 0 2
0 . 1u _ 1 6V _ Y 5V _ 0 4
R 3 5 4
3 3 _0 4
R 3 6 8
39 . 2 K _ 1 %_ 0 4
DIGITAL
ANALOG
U 2 9
A L C 2 6 9 Q- V B 6 -GR
DV
D
D1
1
G P I O0
2
G P I O1
3
P D #
4
S D A T A -OU T
5
B I T - C LK
6
DV
S
S
2
7
S D A T A -I N
8
DV
D
D-
IO
9
S Y N C
10
R E S E T #
11
P C B E E P
12
S e n se A
1 3
L I N E 2- L
1 4
LI N E 2 - R
1 5
MI C 2- L
1 6
M I C 2 - R
1 7
S e n se - B
1 8
J D R E F
1 9
MO N O -OU T
2 0
MI C 1- L
2 1
M I C 1 - R
2 2
L I N E 1- L
2 3
LI N E 1 - R
2 4
AVS
S1
26
V R E F
2 7
L D O _ C A P
2 8
M I C 2 -V R E F O
2 9
MI C 1 -V R E F O - R
3 0
M
IC
1-V
R
E
F
O
-L
31
H P -OU T- L
3 2
AVS
S2
37
O P V E E
3 4
C B N
3 5
C B P
3 6
H P -O U T - R
3 3
PV
D
D
1
39
S P K - L+
40
S P K - L-
41
PVS
S1
42
P
V
SS2
43
S P K - R +
45
S P K - R -
44
PV
D
D
2
46
S P D I F C 2 / E A P D
47
S P D I F O
48
AV
D
D
2
38
AV
D
D
1
25
GN
D
49
C 2 7 9
2. 2 u _ 6. 3 V _ X 5R _ 06
C 5 0 3
0 . 1u _ 1 6V _ Y 5V _ 0 4
C 3 0 7
4 . 7u _ 6 . 3V _ X 5 R _ 0 6
C 3 0 6
4 . 7u _ 6 . 3V _ X 5 R _ 0 6
A U D G
A U D G
A U D G
H D A _ B I T C L K
1 3
H D A _R S T #
1 3
H D A _S D I N 0
1 3
H D A _ S Y N C
1 3
H D A _ S D OU T
1 3
M I C 2 - V R E F O
A Z _ S D I N 0 _R
S P D I F O
M I C 1 - V R E F O-R
EMI Require
H E A D P H ON E -L
H E A D P H ON E -R
C B N -A L 2 69
R130
AL269 4.7K_04
VT1802P 2.2K_04
R 70 0
1 K _ 04
Q 25
M TN 7 00 2 Z H S 3
G
D
S
E A P D _ MO D E
C 51 2
*1 0 0p _ 50 V _ N P O_ 0 4
1229 D02(W240HU)
R 5 6 7
0 _ 0 4
M ON O -OU T
C 2 91
22 p _ 50 V _ N P O_ 04
ALC269 ? ?
VT1802P ? ? ?
C 50 9
1 0 u_ 1 0 V _Y 5 V _0 8
L4 0
H C B 1 00 5 K F -1 2 1T 2 0
1
2
C 5 1 0
0 . 1u _ 1 6V _ Y 5V _ 0 4
C 49 4
1 u _ 6. 3 V _ Y 5 V _ 0 4
5 V S _ A U D
A U D G
VT1802P
ALC269 VB
A U D G
5V S
A UD IO C OD EC
L I N E 2 -L
L I N E 2 -R
S E N S E -B
S P K O U T L -_ L
C 2 9 3
*1 u _ 6. 3 V _ Y 5 V _ 0 4
S P K OU TL -
S P K O U T L + _L
L 2 4
F C M1 0 05 K F -1 2 1 T0 3
1
2
S P K OU TL +
C 2 89
* 18 0 p _5 0 V _ N P O _0 4
C 2 95
* 18 0 p _5 0 V _ N P O _0 4
L2 3
F C M 10 0 5 K F -1 21 T 0 3
1
2
7/16
J_ S P K L 1
8 5 20 4 -0 20 0 1
1
2
I N T _ MI C
MI C 2-V R E F O
1
C 11 8
6 8 0p _ 5 0V _ X 7 R _ 0 4
2
J_INTMIC1
J _I N T MI C 1
8 82 6 6 -02 0 0 1
1
2
R 1 3 0
4 . 7 K _ 04
R 1 2 8
1 K _ 04
L I N E 1 -L
M I C 1 -V R E F O-L
L I N E 1 -R
I N T _ MI C
Q3 9
* 2N 7 00 2 W
G
D
S
A U D G
H E A D P H O N E - L
3 . 3V S
H E A D P H O N E - R
R 5 6 8
*2 2 0 K _0 4
Q3 8
*A O 3 41 5
G
D
S
R 5 71
*1 0K _0 4
A U D G
C 5 3 8
*1 0 u _6 . 3 V _ X5 R _0 6
R 57 0
* 10 K _ 0 4
Headphone Anti-Pop Circuit
R 5 6 9
*4 . 7 K _ 04
Q4 0
*2 N 7 0 02 W
G
D
S
3 . 3 V S
V R E F -A L C 2 6 9
1 20 1
PD#
AZ_ RST #
20ms
5VS
Spe a ke r 4 oh m-- -- --> 40m ils
SPKOU TR +, R-, L+ , L- T rac e w id th
Spe a ke r w i re le n gt h le ss tha n 80 00 mils , It d on 't ne ed LC Fil te r.
3 .3VS _AUD
MI C _ S E N S E 3 1
C 2 98
1 0u _ 6 . 3V _ X 5 R _ 0 6
H E A D P H O N E - L 3 1
1 20 2
B E E P _ C
B E E P
C
A
A
D 1 3
B A T 54 C W GH
1
2
3
C 30 9
1 u _6 . 3 V _ Y 5 V _ 04
R 36 5
4 . 7 K _ 04
R 3 67
4 7 K _ 04
C 30 8
1 0 0p _ 5 0V _ N P O_ 0 4
H D A _R S T #
Q2 7
* B S S 1 38 _ N L
G
D
S
FOR VOLUMN
ADJUST
H D A _S P K R
1 3
K B C _ B E E P
2 8
D 1 9
R B 75 1 S -4 0C 2
A
C
R 5 1 4
* 10 0 K _ 04
Q3 2
*M T N 7 00 2 Z H S 3
G
D
S
R 5 1 8
10 K _ 0 4
D 1 8
R B 75 1 S -4 0C 2
A
C
5 V S
5 V S
K B C _ M U T E #
2 8
J D R E F
H D A _ R S T#
P D #
D 2 1
*R B 7 51 S -4 0 C 2
A
C
5 V S
R 5 10
* 28 m i l_ 0 6
.
L 39
*H C B 1 6 08 K F -1 2 1 T2 5
R 5 3 3
*2 8 mi l _ 06
H P _ S E N S E 31
Sheet 30 of 46
AUDIO CODEC
ALC269 VIA1802
Summary of Contents for W243HWQ Series
Page 1: ...W243HWQ W244HWQ Series ...
Page 2: ......
Page 3: ...Preface I Preface Notebook Computer W243HUQ W244HUQ Service Manual ...
Page 24: ...Introduction 1 12 1 Introduction ...
Page 47: ...Top A 3 A Part Lists Top 灰色 黑色 Figure A 1 Top ...
Page 49: ...Bottom without 3G A 5 A Part Lists Bottom without 3G Figure A 3 Bottom without 3G ...
Page 50: ...A 6 SATA BLU RAY COMBO A Part Lists SATA BLU RAY COMBO Figure 4 SATA BLU RAY COMBO ...
Page 51: ...SATA DVD SUPER MULTI A 7 A Part Lists SATA DVD SUPER MULTI Figure 5 SATA DVD SUPER MULTI ...
Page 52: ...A 8 A Part Lists LCD 銘板 Figure A 6 LCD ...
Page 53: ...HDD A 9 A Part Lists HDD 無鉛 無鉛 Figure A 7 HDD ...
Page 54: ...A 10 A Part Lists ...
Page 102: ...Schematic Diagrams B 48 B Schematic Diagrams ...
Page 105: ...www s manuals com ...