Schematic Diagrams
AUDIO CODEC ALC272 B - 37
B.Sch
e
m
a
tic D
iag
rams
AUDIO CODEC ALC272
H DA_SD O UT
21,35
5 VS
C 65 0
22P_5 0V_N PO_0 4
C49 5
1 u_6.3 V_X5R _ 04
H D A_SYN C
2 1, 35
BEEP
3 7
C 668
0. 1u _1 6V_Y 5V_ 04
MIC 1- R
32
MIC 1 -L
32
L 37
*10m il_ sh ort
C 624
0. 1u _1 6V_Y 5V_ 04
PC BEEP
H DA_SP KR
2 1
H DA_ RST#
21,35
D33
C H 355PT
A
C
C 629
0. 1u _1 6V_Y 5V_ 04
C 756
0. 1u _1 6V_Y 5V_ 04
MIC 1-VR EF O-L
R5 3 2
3 3_ 04
R5 3 0
3 3_ 04
R5 3 4
3 3_ 04
R5 2 7
3 3_ 04
R5 2 6
3 3_ 04
EAPD_MOD E
R1 81
2.2K_04
C2 55
*33 0P_ 50 V_ X7 R _0 4
AZ _BI TC LK_R
AZ _RST#_ R
AZ _SD O UT_R
AZ _SY N C_ R
AZ _SD IN 0 _R
FOR EMI
I NT_MIC
AMP (TPA6017)
C 860
10 u_ 6. 3V_X5R _06
F R ONT-R
F R ONT-L
C 1035
1 u_ 6 .3V_ X5 R_04
D 34
* SC S35 5V
A
C
PIN 13 ,PIN34 JD_SENSE
? ? ? ? ? ? ? ?
Layout Note:
Codec pin 1 ~ pin 11 and pin 44 ~ pin 48
are Digital signals.
The others are Analog signals.
D32
C H 355PT
A
C
PCH _MU TE#
2 6
R 784
*0 _0 4
C 1025
0 .1 u_ 16 V_ Y 5V_0 4
AU D G
C 101
2 .2 U _6.3V_ X5 R _0 4
IN T_ MIC _R
C 847
4 .7 u_ 6.3 V_X5R _0 6
C 841
4 .7 u_ 6.3 V_X5R _0 6
MIC 2_ R
MIC 2_ L
D02
C7 17
*0 .1 u_ 16 V_ Y 5V_0 4
C7 45
*0 .1 u_ 16 V_ Y 5V_0 4
C7 40
*0 .1 u_ 16 V_ Y 5V_0 4
Very close to Audio Codec
C7 60
*0 .1 u_ 16 V_ Y 5V_0 4
Layout Note:
MIC 2 _L
MIC 1 _R
MIC 1 _L
MIC 2 _R
AU D G
AL C _GPIO0
NEAR CODEC
R361
20K_1%_04
AU D G
J D REF
F R ON T-R
F R ON T-L
Gain Settings
GAIN0 GAIN1 AV(inv) INPUT IMPEDANCE
0 0 6 dB 90 k
0 1 10 dB 70 k
1 0 15.6 dB 45 k
1 1 21.6 dB 25 k
C 102
2 .2 U _6.3V_ X5 R _0 4
DIGITAL
ANALOG
U3 3
ALC 27 2
DV
D
D
1
G PIO0 /D MIC -D ATA1/2
2
G PIO1 /D MIC -D ATA3/4
3
DV
S
S
1
4
SD ATA-O U T
5
BI T-CLK
6
DV
S
S
2
7
SD ATA-I N
8
DV
D
D
-I
O
9
SY N C
1 0
R ESET#
1 1
PC BEEP-IN
1 2
Sens e A( JD 1 )
1 3
LI NE2 -L
1 4
LI NE2 -R
1 5
MIC 2-L
1 6
MIC 2-R
1 7
LI NE1 -VR E F O
1 8
MIC 2-VR EF O
1 9
LI NE2 -VR E F O
2 0
MIC 1-L
2 1
MIC 1-R
2 2
LI NE1-L
23
LIN E1- R
24
A
VSS
1
26
VR EF
27
MIC 1-VREF O
28
C BP
29
C BN
30
C PVEE
31
H POU T- R
32
H POU T-L
33
Sens e B( JD 2 )
3 4
L OUT1-L
35
L OU T1- R
36
MO NO-OU T
37
L OUT2-L
39
J DR EF
40
L OU T2- R
41
A
VSS
2
42
N C
4 3
D MI C-CL K3/4
4 4
SPD IF O2
4 5
D MI C-CL K1/2
4 6
EAPD
4 7
SPD IF O1
4 8
AV
D
D
2
38
AV
D
D
1
25
BEEP_ R
5VS
2,12,21, 27,2 8,32, 34,3 8, 40 ,44,4 7
3. 3VS
2,10,11, 12,1 3,14, 21,2 2, 23 ,25,2 6, 27 ,2 8,3 0, 31 ,3 2, 33 ,34 ,3 7, 38 ,4 4,4 5 ,47
5V
28,32, 38,40, 41 ,42,43, 45
R 78 3
10 K_04
PIN25,PIN38 ? 1? 10uF/.1uF
AU D G
.
L 77
HC B16 08KF -12 1T25
SPKOU TL +
SPKOU TL -
C733
0.1 u_16V _Y 5 V_04
C 66 5
* .1U _ 16 V_ 04
C 73 6
1 0u _6 .3 V_ X5 R _0 6
C 7 37
* 1U _ 10 V_ 06
C 86 1
10u _6 .3 V_X5 R _06
C7 39
0.1u _1 6V_Y 5 V_ 04
5 VS_AU D
5V
D 31
*SCS5 51 V- 30
A
C
Layout Note:
R367
8.2K_ 1%_0 4
Very close to Audio Codec
AUD G
AU D G
AUD G
R368
8.2K_ 1%_0 4
R 52 0
20 K_1%_04
MI C 2-VR EF O
C 630
0. 1u _1 6V_Y 5V_ 04
R 51 7
5.1K_ 1%_04
D02
PC BEEP_C
C 83 2
1u_6 .3V_ Y5 V_ 0 4
C8 39
1 00 p_50V_ N PO_ 04
R5 70
2 .2K_ 04
R5 68
1 K_ 04
BEEP_R
PCBEEP_R
AU DG
EAPD _MODE
D02
MIC 1 -V REF O
M770CU SPEAKER 4? ? /2W, ? ? 33K
W760CU SPEAKER 8? ? /1.5W, ? ? 30K
W760C ? ? 47K
R 579
1 K_ 04
SPDI FO
32
10/16 change
footprinter
GAI N0
LI N-
R IN -
C 4 63
10 u_ 6.3 V_X5R _0 6
C 4 65
4 .7 u_ 6. 3V_X5 R_06
C 48 6
*1 U _10V_0 6
R2 87
1 00 K_ 04
R2 90
*100K_04
R2 92
1 00 K_ 04
R2 91
*100K_04
C489
0.1 u_ 16V_Y 5 V_04
T
her
mal
P
ad
U 27
TAP601 7
SD #
19
RI N-
17
LI N-
5
BY PASS
10
GN D
11
GAIN 0
2
R OUT-
14
L OUT-
8
PV D D
6
L OU T+
4
GN D
20
GAIN 1
3
R OU T+
18
PV D D
15
EXPO SED PAD
21
LI N+
9
GN D
1
GN D
13
N C
12
VD D
16
RI N+
7
C 49 1
*1 0u_6.3V_ X5R _0 6
L4 1
H C B1 00 5KF -1 21 T2 0
5VS_R EAR
AU D G
AU DG
AU DG
D02
5VS
5VS
AUD G
AU DG
AU DG
AU DG
LI N+
R IN +
GAI N1
SPK_EN
AMP_BY PASS
C49 2
1 u_6.3 V_X5R _ 04
C 6 69
* 0. 1u _1 6V_Y 5V_ 04
U 34
MC 74 VH C 1G0 8D F T1 G
1
2
5
4
3
3 .3 VS
Low mute!
SPK _EN
KBC _ MU TE#
3 7
C 9
1 80 p_ 50 V_N PO _04
.
L3
F CM100 5KF- 12 1T03
.
L2
F CM100 5KF- 12 1T03
C 5
180p _5 0V_ NPO _0 4
SP KO U TL -_ R
J_SPKL1
85 20 4- 02001
PC B Foot print = 85204 -02 R
2
1
FOR EMI
1
SP KO U TL +_ R
J_SPK1
2
L40
* 10 m il_shor t
H EAD PH O NE-R 32
H EAD PH O NE-L 32
? 10db
MIC 2 -VREF O
R3 60
4. 7K_0 4
C 730
*680P_50V _X7R _ 04
C6 97
10 u_ 6. 3V_X5R _06
C 649
0 .1 u_ 16V_Y 5V _04
C 7 46
0.1u_ 16 V_Y 5V_ 04
C 724
0 .1u _1 6V_ Y5V _04
3.3VS_AU D
3. 3VS
.
L4 2
H CB16 08 KF- 12 1T25
1
MIC 1 -L
C7 47
*680P_50V_X7R _0 4
J _I NTMIC 1
882 66 -0 20 01
PC B Fo ot print = 88 26 6- 2R
2
1
R 365
4. 7K_ 04
SPKO U TR- 32
SPKO U TR+ 3 2
2
J_INTMIC1
R 342
1 K_ 1%_ 04
MI C 1_ L_ C
C 727
4 .7 u_ 6.3 V_X5R _0 6
R 343
1 K_ 1%_ 04
C 761
4 .7 u_ 6.3 V_X5R _0 6
MIC 1_ R
MI C 1-L
MI C 1_ R_ C
MI C 1-R
MIC 1_ L
AL C _VREF
CODEC ( ALC272-GR )
D02
AUD G
AU D G
MI C1 -VR EF O -R
MIC 1- R
AL C _GPIO1
JD _ SEN SE
32
JD _ SEN SE_B
32
J D2
J D1
H P_ SEN SE
MIC _SENSE
AU D G
C 102 6
10 u _6 .3V_ X5 R_0 6
C 1034
1 u_ 6 .3V_ X5 R_04
H DA_BITC LK
21,35
IN T_ MIC
C49 3
1 u_6.3 V_X5R _ 04
C 102 7
10 u _6 .3V_ X5 R_0 6
H D A_ SDI N0
21
C49 4
1 u_6.3 V_X5R _ 04
Sheet 36 of 56
AUDIO CODEC
ALC272
Содержание B5120
Страница 1: ......
Страница 2: ......
Страница 3: ...Preface I Preface Notebook Computer B5120 B5125 Service Manual...
Страница 24: ...Introduction 1 12 Mainboard Overview Bottom Connectors 1 Introduction...
Страница 44: ...Disassembly 2 20 Removing the Modem 2 Disassembly...
Страница 51: ...Part Lists BOTTOM A 7 A Part Lists BOTTOM Figure A 5 BOTTOM...
Страница 52: ...Part Lists A 8 LCD A Part Lists LCD Figure A 6 LCD...
Страница 53: ...Part Lists SATA DVD SUPER MULTI A 9 A Part Lists SATA DVD SUPER MULTI Figure A 7 SATA DVD SUPER MULTI...
Страница 54: ...Part Lists A 10 SATA DVD SUPER MULTI A Part Lists...
Страница 112: ...Schematic Diagrams B 58 MULTI FUNCTION BOARD B Schematic Diagrams...