Service manual

Schematic Diagrams
Audio Codec (71-M1900-D02) B - 27
Schematic Diagrams
Audio Codec
Sheet 25 of 34
Audio Codec -
ALC201A
VDDA
+3VS
OPVCC
AGND
+5VS
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND AGND
AGND
AGND
AGND
AGND
AGNDAGND AGND
+5VS
VDDA 12V
AGND
AC_RST#(14,18)
AC_BCLK(14,18)
AC_SYNC(14,18)
AC_SDOUT(14,18)
AC_SDIN0(14)
GSMHPOUT(26)
LBP(23)
PHONE(18)
GSMRING(26)
CD-L(13)
CD-R(13)
MIC1(26)
CDGND(13)
Vrefout (26)
SPDIF(26)
R_OUT+(26)
L_OUT+(26)
HP_SENSE(26)
5207_EN# (22,26)
AC_SDIN1(14,18)
AC_SYNC
AC_SDIN0
AC_SDOUT
LOUT-R
AC_BCLK
CDGND
SPDIF
LOUT-L
AC_RST#
Vrefout
LOUT-L
MUTEOUT
R_OUT-
LOUT-R
HP_SENSE
R_OUT+
L_OUT-
AC_BCLK
L_OUT+
AC_SDIN0
AC_SDIN1
AC_BCLK
R_OUT+
L_OUT+
LBP
MIC1
CD-L
CD-R
PHONE
Z84
Z832
Z84 Z832
GSMRING
5207_EN#
T
U34 78L05(SO8)(R)
1 8
2 3 6 7 4
OUT IN
GND GND1 GND2 GND3 T
C617
4.7UF
C607
0.1UF
L71
BK2125HS121(0805)
C651
0.1U(R)
C221 1U
C629
0.1UF
C218 1U
C641
1000P
1M(R)
R533
C632
1000P
L69
HF50ACB321611T
L26
BK1608HS330
R531
15K
T
1UC224C642
22P
C650
22P
C229
0.1UF
Y7
24.576MHz
T
T
C648
5P
R199 10K C225 0.22UC220 0.22U
R534
15K
JSPK1
CON2
1
2
U32
TPA0202
1
12
13
24
2
17
23
7
18
6 19
9
11
14
16
8
10
3
15
22
5
4
20
21
GND/HS
GND/HS
GND/HS
GND/HS
NC
NC
NC
VDD
VDD
L_BYPASS R_BYPASS
MUTE OUT
MUTE IN
SE/BTL#
HP/LINE#
SHUTDOWN
L_OUT-
L_OUT+
R_OUT-
R_OUT+
L_HP IN
L_LINE IN
R_HP IN
R_LINE IN
L70
BK2125HS330
C623
4.7U
C631
0.1UF
C643
1U
R524
2M
T
C618
4.7U
JSPK2
CON2
1
2
C522
47P
0.47UC649
R528 47
R530 47
R529
1K
R196 10K(R)
R77 10K
R100 10K
C639 0.22U C644 0.22U
C625
0.1UF
R200 4.7K(R)
C192
0.01U
C205
0.01U
R195 0
R197 0
C647
5P
C624
0.1UF
C638
0.1UF
C630
0.1UF
C611
1U-0603
C193
1U
C191
0.1UF
C622 0.1UF
R175
4.7K
C610
1U-0603
C613
0.1UF
R174 4.7K
R526 10K
C202
0.01U
C203
1U
C609
0.1UF
R176 4.7K
C621
1U
R523
4.7K
C612
0.1UF
R201
0(R)
C606
10U/1206
C195 10U/1206
T
T
C222 1U
C223 1U
R179 10K
C200
0.01U
C201
0.01U
C219
1U
C208
1U
C608
0.1U
C645
1U
D14 1SS355
CA
D13
1SS355(R)
C A
C620 0.1UF(0805)(R)
C207
0.01U
U31
ALC201A
1 9 25 38
4 7 26 42
2
3
5
6
8
10
11
12
13
14
15
16
17
18
20
19
21
22
23
24
27
28
29
30
31
32
33
34
35
36
37
39
40
41
43
44
45
46
47
48
VDD VDD
AVDD AVDD
VSS VSS AVSS NC
XTL-IN
XTL-OUT
SDATA-OUT
BIT-CLK
SDATA-IN
SYNC
RESET#
PC-BEEP
PHONE
AUX-L
AUX-R
VIDEO-L
VIDEO-R
CD-L
CD-R
CD-GND
MIC1
MIC2
LINE-L
LINE-R
VREF
VREFOUT
AFILT1
AFILT2
VRAD
VRDA
CAP1
NC
LINE-OUTL
LINE-OUTR
MONO-OUT
HP-OUT-L
AVSS
HP-OUT-R
AVDD
AVSS
ID0#
ID1#
JD
SPDIFO
C614
1U
C231
10U/1206
R535 10K
C199 1U
For some crystal,
For headphone application,
the bias resistor is needed
AGND:25,26,27,28,29,30,31,32,33
NEAR
ALC201A