Service manual
Schematic Diagrams
Audio ALC888/ Amplifier B - 23
B.Schematic Diagrams
Audio ALC888/ Amplifier
Sheet 22 of 40
Audio ALC888/
Amplifier
MIC1- VREF_L
R601
3K_0 4
APGN D
L72
HCB2012KF-121T30
Q54
2N 7002W
G
DS
GPIO0
Power Plane
ACZ_BITC LK
C650 1U_06
APGN D
C716
1U_04
VD DA
3VS
C733
1U_04
R760 100K_04
Cb
MSPKR
C712
10U / 10V_08
CD_R24
C673
.1U_04
R 764 10 K_04
R6 34 4. 7K_04
VDDA
C629
.1U_04
C875
.1U_04
NEAR IC
MIC1_L
AGND
????
R850 4.7K_04
C722
.1U_04
ACZ_BITCLK11,28
ACZ_SDOUT
R761 10K_04
TV_LINE_L28
R629 4.7K_04(R)
R645 22_04
AGND
AMP_MU TE
U24
TPA4411
5
7
2
17
10
16
4
12
6
14
13
15
20
1
3 11
9
19
18
8
PVs s
PVss
PGN D
SGN D
SVD D
NC
NC
NC
NC
SH DN R
INL
INR
NC
C1P
C1N OUTR
OU TL
PVD D
SH DN L
NC
R844
1K_04(R)
BEEP
MI C1 -VR EF _L
C6 20 1U_ 06
C698
10U/10V_08
MSPKL
L46
FCM1608K-121T06
U31
ALC 883
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26
27
28
29
30
31
32
33
34
35
36
37
39
40
41
42
43
44
45
46
47
48
38
25
DVDD1
GPIO0/XTLI
GPI O1/ XTL O
DVSS1
SD ATA- OU T
BIT - CLK
DVSS2
SD ATA- I N
DVDD2
SYN C
RESET#
PC BEEP
Sens e A( JD 1)
LIN E2- L/ AU X-L
LIN E2- R /AU X- R
MIC2- L
MIC2- R
CD-L
CD-GND
CD-R
MIC1- L
MIC1- R
LIN E1 -L
LIN E1 -R
AVSS1
VREF
MIC1- VR EFO-L
LIN E1- VR EF O- L
MIC2-VREFO
LINE2-VREFO
MIC1-VREFO-R
DCVOL
Sens e B( JD 2)
FRONT-OUT-L
FRONT- OUT- R
LI NE1- VR EF O- R
SURR-OUT-L
JDREF
SURR-OUT-R
AVSS2
CEN-OUT
LF E- OUT
SurrBack-L/GPIO0
Sur r Bac k- R/ XTLSE L
SPD IF I/E APD
SPDIFO
AVDD2
AVDD1
C758
10P_04
3VS
C751
1U_04
R343 1K_04
SPD IF -O UT
APGND
R603
10K_04
D05
TV_L IN E _L
TV_LINE_R28
MSPKL 26
APGN D
AP G ND
C365
. 01U_04( R )
VDDA
AUDIOGPIO1#
AP G ND
MIC1-VREF_R
Ra
SPKL-
C679
.1U_04
J_SPK1
CON4
1
2
3
4
R648 10K_04
R336 1K_04
AGND
APG N D
SB_M UT E#11
AMP_MU TE
SPKR-
R647 1K_04
VD DA
ACZ_RST#
R773 1K_04
VO=VREF(R2+R1)/R2
AGN D
C727
.01U_04
C361
1U_04
R608
0_04
U40D
74LV C08PW
12
13
11
147
MIC1_R 26
Sur r B a c k -L
MSPKL
L71
FCM1608K-121T06
C728
1U_04
R 340 2.2K _04
C732
.1U_04
AGN D
AUDIOGPIO1#
C738
1U_04
APGN D
TV_LINE_R
LINE_OUT_R
LINE_OUT_R
T
INTMIC
+
C986
47U/6.3V_B(R)
C710
. 01U_04( R )
R599
1K_0 4
U41
APA2 020AR L
18
21
7
22
20 15
19
3
10
11
14
1
16
9
8
6
5
4
2
17
23
12
13
24
25
26
27
28
29
30
31
32
33
RVdd
RLINEIN
LVdd
ROUT+
RHPIN ROUT-
RBYPASS
LOU T+
LOU T-
MUTE IN
SE/BTL
GND/HS
HP/LINE
MUTE OUT
SHUTDOWN
LBYPASS
LHPIN
LLINEIN
TJ
NC
NC
GND/HS
GND/HS
GND/HS
THREM/GND
THREM/GND
THREM/GND
THREM/GND
THREM/GND
THREM/GND
THREM/GND
THREM/GND
THREM/GND
SurrBack-R
T
AGN D
U27
AM E8804A EEY
1
2
34
5
6
VIN
GN D
ENPG
ADJ
VOUT
R2
MIC1_R
C765
.1U_04
C876
.1U_04(R)
R 842 0_04
C684
.1U_04
C965
10U_10V_08
PI N21~ 24 =N C
AGND
ACZ_SDOUT11,28
LINE-R
L47
FCM1608K-121T06
SPD IF -O UT 26
T
VD DAC
ACZ_SY NC11,28
ACZ_RST#11,28
C704
.01U_04
AGND
MIC 1L
C689
.1U_04
R762
10K_04
R851 4.7K_04
CD_L24
R335
4.7K_04
U40A
74LVC 08PW
1
2
3
147
C621
10U/10 V_08
C745
.01U_04(R)
ACZ_SDIN011
C763
10U/10V_08
L66
FCM1608K-121T06
C718
.1U_04
C657
.1U_04
C708
.01U_04
L76 H CB 2012K F- 121T 30( R )
MSPKR 26
C633
.1U_04
3VS5VS
SPKR+
C723
.01U_04
R400
10K_04( R )
APGN D
R631
4.7K_04
C652 10U/10V_08
C651
1U_04
INTMIC19
Sur r B a c k -R
MSPKR
AGN D
C730
.1U_04
ACZ_SDIN0
MIC 1L
C676
.1U_04
C877
.1U_04
C702
.01U_04(R)
3VS 2,6,8..15,17..21,24..28,31,33
MIC2- VREF
C655
.1U_04
R 763 10 K_04
R646 22_04
3VS
BEEP27
C743
1U_04( R)
U40C
74LVC 08 PW
9
10
8
147
C737
.1U_04
AGN D
C688
10U/10V_08
C375
470P_X 7R04
C742
.01U_04(R)
T
AM P_M UT E_M 26
LINE_OUT_L
L43
FCM1608K-121T06
C972
470P_5 0V_04
C724 1U_04
R 843 0_04
VOL_MUTE#23
JD_SENSE
D05
R6 28 20K _04C709
1U_04
R337
4.7K_04
AGN D
5VS
AGN D
APGND
5VS 6,12..14,18,19,24,26..28,33
R635 10K_04
U40B
74LVC08PW
4
5
6
147
INTMIC
C372
470P_X 7R04
R 339 2.2K _04
C985
0.1U _06
MIC2-VREF
C984
0.1U _06
R5 94 120K_04
C874
.1U_04
L70
H CB201 2KF - 121T 30
3VS
APGN D
CD_G24
MUTE IN
C366
1U_04
L77
HC B2012KF-121T30
3VS
3VS
MIC1_L 26
C741
1U_04( R)
R6 16 4. 7K_04
C622
.1U_04
Rb
MUTE IN#
C740
.01U_04(R)
R620
4.7K_04
R765 10K_04
R575 10K_04
L78
HCB2012KF- 121T30
R1
Power Plane
CD_G
C750 10P/50V_04( R)
T
C699
10U/ 10V_ 08
C611
.1U_04
ACZ_SYNC
SPKL+
C9 48 1000P _X7R _04
L67
FCM1608K-121T06
R845
1K_0 4( R)
LINE-R26
MI C1 -VR EF _R
C6 13 1U_ 06
C654
.1U_04
Cb
AGN D
MIC 1R
AMP_MU TE_M
C719
1U_04
J_RSPK1
HEADER 2
1
2
C9 47 1000P _X7R _04
APGND
C703
.1U_04
VREF=1.215V
LINE-L26
CD_L
5VS
R625 4.7K_04
J_LSPK1
HEADER 2
1
2
AGND
AP G ND
MUTE _OUT
R 596 10 0K_04
VDDAC
L44
FCM1608K-121T06
C653
10U /10V _08
Ca
C 634
10U/10V_08
JD_SENSE26
EAPD _M UT E
C749
.1U_04
C878
.1U_04
CD_R
MIC 1R
R802
2. 2K_04
D05
LINE_OUT_L
T
3VS
SurrBack-L
MUTE IN#
AMP_MU TE
L45
FCM1608K-121T06
+
C987
47U/6.3V_B(R)
L48
FCM1608K-121T06
LINE-L
C715
.1U_04