Service manual

Schematic Diagrams
B - 36 Audio Codec ALC272
B.Schematic Diagrams
Audio Codec ALC272
HDA_SDOUT19,34
5VS
C404 1u_6.3V_X5R_04
3.3VS 2,10,11,12, 13,19,20,21,22,23, 24,25, 26,28,29,30,32,33,36, 37,42,43,46
HDA_SYNC19,34
C408
4.7u_6.3V_X5R_06
FOR EMI
L26 FCM1005KF-121T03
L29 FCM1005KF-121T03
C405
180p_50V_NPO_04
C395
180p_50V_NPO_04
BEEP36
C413 0.1u_16V_Y5V_04
C468
1u_6.3V_X5R_04
MIC 1-R30
MIC1-L30
BEEP
L32 *10mil_short
C615 0.1u_16V_Y5V_04
PC BEEP
HDA_SPKR19
HDA_RST#19,34
C608
180p_50V_N PO_04
D17 CH355PT
A C
C409 0.1u_16V_Y5V_04
C616 0.1u_16V_Y5V_04
MIC1-VREFO-L
C449 1U_10V_06
R313 22_04
R316 22_04
R318 22_04
R321 22_04
R326 22_04
EAPD_MOD E
R348
2.2K_04
C485
330p_50V_X7R_04
SPKOUTR-_R
AZ_BI TCLK_R
10U->1U_06
C990325
AZ_R ST#_R
AZ_SDOUT_R
AZ_SY NC_R
AZ_SD IN0_R
FRONT-R
FRONT-L
INT_MIC
J_INTMIC1
88266-02001
PCB Footprint = 88266-2R
2
1
AMP (TPA6017)
FRONT-R
FRONT-L
C609
180p_50V_NPO_04
D13 *SCS355V
AC
Layout Note:
Codec pin 1 ~ pin 11 and pin 44 ~ pin 48
are Digital signals.
The others are Analog signals.
Very close to Audio Codec
D16 CH355PT
A C
PCH_MUTE#24
Very close to Audio Codec
D32 SCS355V
AC
R539 *0_04
R537
100K_04
R538
*100K_04
3.3VS
3.3VS
C1132 0.1u_16V_Y5V_04
U21
*G924
SHDN#
1
GND
2
BYP
3
OUT
4
VIN
5
AUDG
C392
*0.1u_16V_Y5V_04
SPKOUTR-_R 30
C433 2.2u_6.3V_X5R_04
SUSB#21,28,31,36, 39
C477 4.7u_6.3V_X5R_06
C476 4.7u_6.3V_X5R_06
MIC 2_R
MIC 2_L
J_SPKL2
85205-02701
1
2
C472 *. 1U_16V_04
C470 *. 1U_16V_04
C469 *. 1U_16V_04
Very close to Audio Codec
C471 *. 1U_16V_04
Layout Note:
MIC 2_L
MIC 1_R
MIC 1_L
MIC 2_R
AUDG
ALC_GPIO0
NEAR CODEC
R308 20K_1%_04
AUDG
JDREF
C427 22p_50V_NPO_04
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
C442 2.2u_6.3V_X5R_04
DIGITAL
ANALOG
U28
ALC272
DVDD
1
GPIO0/D MIC -DATA1/ 2
2
GPIO1/D MIC -DATA3/ 4
3
DVSS1
4
SDATA-OUT
5
BIT-CLK
6
DVSS2
7
SDATA-I N
8
DVDD-IO
9
SY NC
10
RESET#
11
PCBEEP-IN
12
Sense A(JD1)
13
LIN E2-L
14
LIN E2-R
15
MI C2 -L
16
MI C2 -R
17
LINE1-VREFO
18
MI C2 -V REF O
19
LINE2-VREFO
20
MI C1 -L
21
MI C1 -R
22
LINE1-L
23
LINE1-R
24
AVSS1
26
VREF
27
MIC1-VREF O
28
CBP
29
CBN
30
CPVEE
31
HPOUT-R
32
HPOUT-L
33
Sense B(JD2)
34
LOU T1-L
35
LOUT1-R
36
MONO-OUT
37
LOU T2-L
39
JDREF
40
LOUT2-R
41
AVSS2
42
NC
43
DMIC-CLK3/4
44
SPDIFO2
45
DMIC-CLK1/2
46
EAPD
47
SPDIFO1
48
AVDD2
38
AVD D1
25
5VS 12,19,22,25,26,30,33, 37,42, 43,46
5V 26,29,30,31,37,39,40, 41,44
C990317
ADD MIC C990329
AUDG
.
L24 HCB1608KF-121T25
SPKOUTL+
SPKOUTL-
C473
0.1u_16V_Y 5V_04
C474
*.1U_16V_04
C420
10u_10V_Y5V_08
C402
*1U_10V_06
C458
10u_10V_Y5V_08
C412
0.1u_16V_Y5V_04
5VS_AUD
5V
D12 *SCS551V-30
AC
Layout Note:
R295 0_04
Very close to Audio Codec
AUDG
AUDG
AUDG
R296 0_04
R338 20K_1%_04
MIC2-VREFO
C424 0.1u_16V_Y5V_04
SPKOUTR+_R
R312 5.1K_1%_04
PCBEEP_C
C465 1u_16V_X5R_06
C480 100p_50V_NPO_04
R339 10K_04
R336 1K_04
BEEP PCBEEP_R
AUDG
MIC 1-VREF O
R333 75_1%_04
SPDIFO30
10/16 change
footprinter
GAIN0
LIN-
RIN-
C399
10u_10V_Y 5V_08
C403
*1U_10V_06
R285 *100K_04
R288 *100K_04
R287 100K_04
R284 100K_04
C400
0.1u_16V_Y 5V_04
Thermal Pad
U27
N7010
SD#
19
RIN-
17
LIN-
5
BYPASS
10
GND
11
GAIN0
2
ROUT-
14
LOU T-
8
PVDD
6
LOUT+
4
GND
20
GAIN1
3
ROUT+
18
PVDD
15
EXPOSED PAD
21
LIN+
9
GND
1
GND
13
NC
12
VDD
16
RIN+
7
C398
*10U_10V_08
L27 HCB1005KF-121T20
5VS_REAR
AUDG
AUDG
AUDG
5VS
5VS
AUDG
AUDG
AUDG
AUDG
LIN+
RIN+
GAIN1
SPK_EN
AMP_BYPASS
C397 1u_6.3V_X5R_04
C393
*.1U_10V_X7R_04
U24
MC74VHC1G08DFT1G
1
2
5
4
3
3.3VS
Low mute!
SPK_EN
KBC_MUTE#36
EAPD _MODE
.
L25 FCM1005KF-121T03
.
L28 FCM1005KF-121T03
SPKOUTL+_R
SPKOUTL-_R
HEAD PHON E-R 30
HEAD PHON E-L 30
MIC 2-VREFO
R342
4.7K_04
C459
*680P_50V_X7R_04
C414
10u_10V_Y 5V_08
C447
0.1u_16V_Y5V_04
C456
0.1u_16V_Y5V_04
C439
0.1u_16V_Y 5V_04
3.3VS_AU D
3.3VS
.
L30 HCB1608KF-121T25
MI C1 -L
C481
*680P_50V_X7R_04
R332
4.7K_04
SPKOUTR-
SPKOUTR+
R340 1K_1%_04
MI C1 _L_ C
C479 4.7u_6.3V_X5R_06
R334 1K_1%_04 C478 4.7u_6.3V_X5R_06
INT_MIC_R
MIC 1_R
MIC1-L
MI C1 _R_ CMIC1-R
MIC 1_L
ALC _VREF
CODEC ( ALC272-GR )
AUDGAUDG
MIC1-VREFO-R
MIC 1-R
ALC_GPIO1
JD_SENSE30
JD_SENSE_B30
JD2
JD1
HP_SENSE
MIC_SENSE
AUDG
HDA_BITCLK19,34
INT_MIC
C396 1u_6.3V_X5R_04
HDA_SDIN019
SPKOUTR+_R 30
C407 1u_6.3V_X5R_04
Sheet 35 of 53
Audio Codec
ALC272