Service manual

Schematic Diagrams
Audio Codec ALC202 B - 21
B.Schematic Diagrams
Audio Codec ALC202
Sheet 20 of 36
Audio Codec
ALC202
+3VS
AUD_AGND
AUD_AGND
AUD_AGND
AUD_AGND
AUD_AGND
AUD_AGND
AUD_AGND
+5VS
AUD_AGND AUD_AGND AUD_AGND AUD_AGND
AUD_AGND AUD_AGND
+3VS
AUD_AGND
AUD_AGND
+5VS
AUD_AGND
AUD_AGND
AVDDA
AUD_AGND
AUD_AGND
AUD_AGND
AUD_AGND
AUD_AGND
AUD_AGND
AUDVDD
AUDVDD
+5VS AVDDA
AUD_AGND
+5VH8
+12V
AUD_AGND
+5VS AVDDA2
+12V
+5VH8
AUD_AGND2
AUD_AGND2
AUD_AGND2
AUD_AGND2
AUD_AGND2
AUD_AGND2
AUD_AGND2
AUD_AGND2
AVDDA2
AUD_AGND2
AC_RST#12,15
AC_BITCLK12,15
AC_SDATOUT12,15
AC_SYNC12,15
AC_SDATAIN012
INT_CD_R 16
INT_CD_L 16
CD_GND 16
H8_BEEP20
PCMSPK22
AC_SPKR12
+5VS 11,13,15,16,18,20,28,31,32,35
SPDIF 31
MIC1 31
V_REFOUT 31
HP-SENSE31
LINE_OUT_L 31
LINE_OUT_R 31
14.3M10
HP-SENSE31
ICHPWROK4,11,12,13,31
+3VH8 3,11,20,31,32,34,37
AUDVDD 31
+3VS 3,8,10,11,12,13,15,16,17,18,20,25,27,28,29,31,32,33,35,37
+12V 23,32,34,35
+5VH8 18,20,31,32,33,34,35
HP_EN#18,20
RINGER18
MODEM_SPK15
RFSPKR+18
ICHPWROK4,11,12,13,31
HP-SENSE31
Z2107
BEEP
Z2121
Z2106
Z2118
Z2117
SPDIFO
LO-
BEEP
+5VS
Z2124
Z2119
Z2120
Z2127
Z2122
Z2131
V_REFOUT
Z2116
Z2128
Z2130
Z2126
Z2109
Z2105
Z2129
Z2115 Z2111 Z2110 Z2102
Z2123
Z2104
Z2114 Z2112
Z2101
Z2103
Z2133
Z2125
MIC1
Z2113
Z2132
RO-
RO+
LO+
SPDIFO
Z2155
Z2150
Z2153
Z2154
Z2156
Z2152
Z2151
LINE_OUT_L
Z2142
Z2157
SPKL2
Z2138
Z2137
Z2139
Z2146
Z2143
Z2135
LINE_OUT_R
SPKR2
SPKL1
Z2144
Z2140
MIC1
Z2141
SPKR1
Z2148
Z2149
+3VS
AUDVDD
+3VH8
+5VH8
+12V
Z2108
PLO- PLO+ PRO+ PRO-
Z2173
Z2174
Z2147
Z2164
Z2145
PR1+
Z2161
Z2172
Z2168
PL1-
LINE_OUT_R
Z2162
SPDIFGND
Z2169
LINE_OUT_L
Z2171
PR1-
LINE_OUT_R
Z2136
LINE_OUT_L
Z2160
Z2167
Z2166
Z2160
Z2170
PL1+
Z2165
Z2163
PLO-
PRO+
PRO-
PLO+
PRO+
PLO-
PLO+
PRO-
C29
180PF
R229 *0(0402)
R225 0(0402)
L3 L_0603(129)
R224 0(0402)
L4 L_0603(129)
C412 1u
JSPK1
ACES/CON4
1
2
3
4
1
2
3
4
L101
L_1206
1 2
R497 20K
R242 20K
R248 20K
RN9
*8P4RX0
18 27 36 45
C396
4.7U(0805)
C373 1u
C413 .01u
C808 1u
R549 51K
U46
LM4835 TSSOP28
21
5
4
13
12
11
10
9
6 16 271
8 14 20 23
22
2
24 25
3 7 19 18
17
15
28
26
29
HP_SENSE
MUTE
MODE
LEFT_DOCK
LEFT_IN
BEEP
RIGHT_IN
RIGHT_DOCK
VDD VDD VDDGND
GND GND GND GND
BYPASS
SHUTDOWN
R-GAIN1 R-GAIN2
GAIN_SEL
DC_VOL
L-GAIN1 L-GAIN2
LEFT_OUT-
LEFT_OUT+
RIGHT_OUT+
RIGHT_OUT-
GND
R528 51K
U53
LM4835 TSSOP28
21
5
4
13
12
11
10
9
6 16 271
8 14 20 23
22
2
24 25
3 7 19 18
17
15
28
26
29
HP_SENSE
MUTE
MODE
LEFT_DOCK
LEFT_IN
BEEP
RIGHT_IN
RIGHT_DOCK
VDD VDD VDDGND
GND GND GND GND
BYPASS
SHUTDOWN
R-GAIN1 R-GAIN2
GAIN_SEL
DC_VOL
L-GAIN1 L-GAIN2
LEFT_OUT-
LEFT_OUT+
RIGHT_OUT+
RIGHT_OUT-
GND
T380
T
C30
180PF
C776
1u
C408 *.1u
+
C395
10U(0805)/6.3V
12
R268
1.5K(0402)
C382 .1u(0402)C403
.1u(0402)
C805
4.7U(0805)
C374
1u
R554 20K
R267
1.5K(0402)
R258
1.5K(0402)
R257
1.5K(0402)
C405
1u
PQ66
4800
4
6 2
5
7 3
1
8
C411 1u
C779
.1u(0402)
R532 51K
R499 *0(0402)
C397
4.7U(0805)
C410
*.1u
C406 1u
R496 20K
C746 1u
R276
10K(0402)
R555 20K
R531
33K
R508 *0(0402)
C398
.1u(0402)
R275 10K(0402)
C394 .1u
C393 *.1u
R265
1.5K(0402)
R266
1.5K(0402)
C422 .1u(0402)
C427 .1u(0402)
C781 .1u(0402)
C765 1000PF(0402)
C409 .1u
C757 1u
C387 1u
C384 1u
C773 10U(0805)/6.3V
C407 *.1u
C361
10U(0805)/6.3V
C356
10U(0805)/6.3V
C392
*.1u
L78
L_1206
1 2
C357
.1u(0402)
C376
.1u(0402)
C760 1000PF(0402)
Y6
24.576MHz
12
ALC650/ALC202
U47
ALC202
43 44 45 46 47 48
39 40 41
31
32
33
34
26
1
2
3
4
5
6
7
8
9
10
11
12 13 14 15 16 17 18 19 20 21 22
23
24
27
28
29
30
35
36
37
38
42
25
JD/SDIN1/GPIO0
TEST1/GPIO1
ID0#
XTLSEL
EAPD/SPDIFI
SPDIFO
HP_OUT_L NC/HP_OUT_C HP_OUT_R
VRAD/CAP1
VRDA/CAP2
CAP1/CAP3
NC/CAP4
AVss1
DVdd1
XTL_IN
XTL_OUT
DVss1
SDATA_OUT
BIT_CLK
DVss2
SDATA_IN
DVdd2
SYNC
RESET#
PC_BEEP PHONE AUX_L AUX_R VIDEO_L VIDEO_R CD_L CD_GND_REF CD_R MIC1 MIC2
LINE_IN_L
LINE_IN_R
VREF
V_REFOUT
AFILT1
AFILT2
LINE_OUT_L
LINE_OUT_R
MONO_OUT
AVdd2
AVss2
AVdd1
L79
L_1206
1 2
C381 22PF(0402)
C388 22PF(0402)
C769
.1u(0402)
C375
.1u(0402)
R274
33K
JSPK2
ACES/CON4
1
2
3
4
1
2
3
4
C804 .01u
C810
4.7U(0805)
C391
.1u(0402)
R550
33K
C364 *.1u
R551 100K(0402)
R552 20K
C806
.1u(0402)
C740
10U(0805)/6.3V
R553 20K
C385
*10PF
R556
33K
C809 1u
R557 51K
C775
.1u(0402)
C807
.1u(0402)
C811 .01u
C378 *1u
PQ69
4800
4
6 2
5
7 3
1
8
D42
*RB751V
A C
C815
.1u(0402)
C771
.1u(0402)
C816
.1u(0402)
T
Q28
2N7002
G
S D
CP1
8P4C_180P
1 2 3 4 5
6 7 8
L7
PLW3216S_S8
1
2
3
45
6
7
8
R559
100K
C777
4.7U(0805)
C802
10PF
C818
4.7U(0805)
R518
100K
C814
4.7U(0805)
C415 .01u
R558
1M
Q27
2N7002
G
S D
C780
4.7U(0805)
RN8
8P4RX0
1 8
2 7
3 6
4 5
C817
4.7U(0805)
Q23
2N7002
G
S D
L6 L_0603(129)
Q22
2N7002
G
S D
C377
.1u(0402)
R240 10K(0402)
L5 L_0603(129)
R260 22(0402)
R255 22(0402)
R226 100K(0402)
C782 .1u(0402)
C32
180PF
R241
*0(0402)
C31
180PF
R538
4.7K(0402)
R512
1M
C420 *.1u
L82
L_0603(164)
1 2
C372 *.1u C363 *.1u C419 *.1u
C752
4.7U(0805)
U51
TC7S32F
1
2
3
5
4
IN
IN
GND
VCC
OUT
T
T
T
T
T
PLEASE PLACE CLOSE THE
POWER INPUT PINS
PLEASE PLACE CLOSE CODEC &
AMP THE POWER INPUT PINS
REMOVE M/E POSITION
INSTALL R536 IF EXT 14.3MHZ CLK
fo=1 /2*3.14*51K*300PF = 10.4KHZ
AV = R528/R274=1.55
7/9
AVDDA
LINE_OUT_R/L
9/17
CLOSED TO U60 AMP APA4835
USE ALC203 MUST BE REMOVE R240,C387,C384,C757
+
+
11/1
11/1
1/6
1/6
1/6
1/6
1/6
1/6
1/6
1/6
FRONT
CLOSED TO U46
CLOSED TO JSPK2
CLOSED TO U53 AMP APA4835
1/7
CLOSED TO U53
CLOSED TO JSPK1
PANEL
+
1/7
+