Audio Codec & Amp - EUROCOM M22ES Service Manual

Schematic Diagrams
Audio Codec & AMP
[6,10,11,15,16,17,18,19,20]
Sheet 23 of 31
Audio Codec &
AMP
VSOUND_L
DACVCC
B - 24 Audio Codec & AMP (71-M2200-D06)
R111 0(0805)
DACVCC3
C161 C168 C172
0.1UF 0.1UF 4.7U
R152 1(0805) 1
DACVCC DVDD1 PC_BEEP
9
DVDD2 PHONE
C151 C217 C237
LINE_OUT_L
0.1UF 0.1UF 10U 25
AVDD1 LINE_OUT_R
C16722P 38
DACGND
AVDD2
Y4 2
XTL_IN
C17122P 24.576MHZ Z327 3
XTL_OUT
AC_SDOUT
5
[12,22] AC_SDOUT
SDATA_OUT
CD_GND
AC_BITCLK R121 47 Z328 6
[12,22] AC_BITCLK
BIT_CLK
R128 47 Z89 8
[12] AC_SDIN0
SDATA_IN
10
[12,22] AC_SYNC
SYNC
R127 0 Z832 11
[12,22] AC_RST#
RESET#
R133 R
PCIRST#
C190 0.01U
DACGND
Z92 27
VREF
Z320 28
VREFOUT
C225 C198
C199 C189
10U 0.1UF
10U(R) 0.1UF(R)
DACGND LINE_IN_L
LINE_IN_R
DACGND
AUX_L
Z507 37
TP11 MONO_OUT AUX_R
Z419 33
NC VIDEO_L
C155 C159 0.01U(R) Z418 34
DACGND
NC VIDEO_R
Z508 39
TP7
NC
0.047U(R) Z509 40
TP6 NC
Z510 41
TP10 NC
Z511 43
TP12 NC
Z512 44
TP8 NC
R109 20K(R) CID0 45
NC
R108 20K(R) CID1 46
NC
TP9 Z513 47
NC AFILT1
R107 20K(R) SPDIF Z420 48
NC AFILT2
CID0 CID1 status ALC201A
NC NC MASTER
GND NC SLAVE
NC GND SLAVE
GND GND SLAVE
DACGND
R473 100K AC_SDIN1
AC_SDIN1 [12,22]
L32
+3VS
R137 100K AC_SDIN0
AC_SDIN0 [12]
AC'97 PULL-DOWN
PLACE NEAR TO AC'97 CODEC
Z95 R89 10K(1%) Z81
C107 0.22U
U8
4 21
L_LINE IN R_LINE IN
Z97 Z82
C106 0.22U R88 10K
C134
5 20
L_HP IN R_HP IN
R100 R101
10K 18K(1%)
10P
L_OUT+ 3 22
L_OUT+ R_OUT+
L_OUT- 10 15
L_OUT- R_OUT-
Z99 6 19
L_BYPASS R_BYPASS
MUTEOUT 8 14
SHUTDOWN SE/BTL#
16
HP/LINE#
7
VDD
18 11
VDD MUTE IN
9
MUTE OUT
C136
C94 C135 1
GND/HS
12 2
GND/HS NC
0.1UF 4.7U 1U 13 17
GND/HS NC
24 23
GND/HS NC
APA2020A
DACGND DACGND DACGND DACGND:25,26,27,28,29,30,31,32,33
U11 R159 20K
DACGND
C211 0.01U C226 0.01U R166 20K
DACGND DACGND DACGND
12 Z105 C210 0.1UF Z106 R158 1K Z107 R176 20K
BEEP [22]
13 Z110 C227 0.1UF Z757 R167 20K
MODEM_SPK [22]
GSMHPOUT [23]
21 MIC1
MIC1
35 SOUND_L
36 SOUND_R
R149 1K
DACGND
R151 1K
CD_L
18 Z108 C213 1U Z118 R160 4.7K
CD_L CD_L [15]
19 Z116 C214 1U
CD_R
20 Z109 C215 1U Z117 R162 4.7K
CD_R CD_R [15]
L39
R161 1.5K CD_GND
CD_GND [15]
BK2125HS121
R150 C246 C245
1.5K 0.01U 0.01U
DACGND
23 Z90 C216 0.01U
24 Z91 C229 0.01U
14 Z113 C258 1U
GSMRING [23]
15 Z115 C259 1U
16 Z112 C235 0.01U
17 Z111 C244 0.01U
22 Z114 C236 0.01U C228 C212
MIC2
0.01U 0.01U
DACGND
29 Z422
30 Z423
31 Z424
CAP1
32 Z421
CAP2
C160 C163 C170 C175 C174 C185
10U(R) 0.1UF 0.1UF 10U 1000P 1000P
DACGND
BK2125HS121
DACVCC3
C147 C140 C133
0.1UF 0.1UF 10U
Z84 Z96 VSOUND_R
R65 10K(1%) C100 0.22U
Z83 R66 10K Z98
C101 0.22U
R57
R58 C70
10P
18K(1%) 10K
R_OUT+
R_OUT-
Z100
PHONE_IN
Near U29 [23] INT_MIC
AMP_DOWN
Q29
MUTEOUT
2N7002
Z923 TP5 R102 C93 G PWRGD
PWRGD
TP17
Z924 TP3 1U
10K
DACVCC DACGND
L40 BK2125HS121
R153
U15
1 8
+5VS
IN OUT
294K,1%(R)
Z321 4 5 Z10 C230
OFF# SET
R181 10K(R)
C262 2 7 R154 0.1UF
GND GND
3 6
GND GND
10U
MAX603(R)
100K(R) L42
C261
L90
SPDIF
BK2125HS121
C709 680P
R7 7.5K Z103
DACVCC DACGND
C323 10U INT_MIC
R201 7.5K
L1
MIC1 Z104 R199 1K Z556 Z121
C7 0.1UF BK2125HS121
R6
C8
C15 C309
NEAR AKM4543 PIN 0.01U 0.01U(R)
680P R
DACGND DACGND
DACGND DACVCC
R239
100K
R218
1K
R240
L15 BK1608HS121
R_OUT+ C38 47U/16V_D Z4 Z5 4
Z101 3
L16 BK1608HS121 5
L_OUT+ C49 47U/16V_D Z122 Z102 2
1
C341 C344 C324 C330 EXT_SPEAKER
R238
680P 680P 680P 680P
1K
DACGND DACGND
DACGND
NEAR TO
CN25 AKM4543 VSOUND_R
R_OUT+ 1
1
R_OUT- 2 SOUND_R C67 1U Z665
2
L_OUT- 3
3
L_OUT+ 4 SOUND_L C68 1U Z666
4
SPEAKERS CONN. 4P VSOUND_L
C66 C69
680P 680P
PIN NC3.4=DACGND
CN16
INT_MIC L57 BK2125HS121 Z93 DACGND
1
TP1 Z930 DACGND
2
L58 Z94
3
BK2125HS121
INT MIC CONN. 3P
DACVCC
C243
10U
BEAD(1206)
DACGND
0.1UF
4 CN3
3
5
2
1
MIC IN
C20
.22U(0603)
100K PHONE_IN
CN10
VR1
2
3
1
6
5
VR-AUDIO
DACGND