Audio Codec Alc202 - EUROCOM M375E Service Manual

Audio Codec ALC202

INSTALL R536 IF EXT 14.3MHZ CLK
D42 *0(0402)
Z2122 R241
A C
31 HP-SENSE
1/6
+3VS
*RB751V Z2123
T380
T
Z2124 R240
+3VS
PLEASE PLACE CLOSE THE SPDIFO Z2151
T
POWER INPUT PINS L82
L_0603(164)
U47
+
Z2101
C395 C403 C382 .1u(0402) 1
DVdd1
10U(0805)/6.3V .1u(0402) 4 34
DVss1 NC/CAP4
7 33
DVss2 CAP1/CAP3
AUDVDD 9 32
DVdd2 VRDA/CAP2
25 31
AVdd1 VRAD/CAP1
26 30
AVss1 AFILT2
38 29
AVdd2 AFILT1
42 28
AVss2 V_REFOUT
ALC650/ALC202 27
VREF
2
Z2103 XTL_IN
C381 22PF(0402) 3
XTL_OUT
5
10 14.3M SDATA_OUT
Z2104 6
BIT_CLK
Y6 Z2105 8
SDATA_IN
24.576MHz 10 36
SYNC LINE_OUT_R
11
RESET#
C388 22PF(0402)
35
12,15 AC_SDATOUT LINE_OUT_L
R255 22(0402) 24
12,15 AC_BITCLK
LINE_IN_R
R260 22(0402) 23
12 AC_SDATAIN0 LINE_IN_L
12,15 AC_SYNC
ALC202
12,15 AC_RST#
C776 1u
Z2119
BEEP R275 10K(0402) Z2106 Z2107 Z2156
T
R276 Z2120
C385 C802 C779 10K(0402) MIC1
.1u(0402) Z2117
*10PF 10PF C406 1u
C409 .1u
1/6
C374
Z2118
C394 .1u
18 RINGER 1u
R267
C411 1u 1.5K(0402)
15 MODEM_SPK
C393 *.1u
C412 1u
18 RFSPKR+
AUD_AGND
C408 *.1u
7/9 C410
C405
*.1u
Z2121
AUD_AGND C392
C427 .1u(0402) *.1u
12 AC_SPKR
1u R266
1.5K(0402)
C781 .1u(0402) BEEP C407 *.1u
20 H8_BEEP
C422 .1u(0402) AUD_AGND
22 PCMSPK
AUD_AGND
1/6
AVDDA
C396 C376 C377
11/1 Z2146
4.7U(0805) .1u(0402) .1u(0402)
AUD_AGND AUD_AGND AUD_AGND
R274
33K
1/6 Z2157
21
31 HP-SENSE
HP_SENSE
Z2160 5 17
18,20 HP_EN# MUTE LEFT_OUT-
R229 *0(0402) 4
MODE
R226 100K(0402) 2
SHUTDOWN
R242 20K 15
LEFT_OUT+
LINE_OUT_R Z2135 R248 20K Z2138 13
LEFT_DOCK
C373 1u Z2137 12
LEFT_IN
28
RIGHT_OUT+
11
BEEP
LINE_OUT_L Z2144 R496 20K Z2139 10 26
RIGHT_IN RIGHT_OUT-
Z2140
C746 1u 9
RIGHT_DOCK
R497 20K
Z2141 22
BYPASS
C397 C398
4.7U(0805) U46
.1u(0402)
LM4835 TSSOP28
AUD_AGND AUD_AGND
Z2142
AUD_AGND
R531
33K
Z2143
11/1
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+5VS
+5VS 11,13,15,16,18,20,28,31,32,35
+3VS
+3VS 3,8,10,11,12,13,15,16,17,18,20,25,27,28,29,31,32,33,35,37
+3VH8
+3VH8 3,11,20,31,32,34,37
AUDVDD
AUDVDD 31
+5VH8
+5VH8 18,20,31,32,33,34,35
+12V
+12V 23,32,34,35
9/17
+5VS AUDVDD
10K(0402)
PLEASE PLACE CLOSE CODEC &
AMP THE POWER INPUT PINS
USE ALC203 MUST BE REMOVE R240,C387,C384,C757
L78
C378 *1u Z2150 1 2
T
L_1206
C387 1u C740 C356
C361
C384 1u 10U(0805)/6.3V 10U(0805)/6.3V 10U(0805)/6.3V
Z2125
Z2128 C757 1u
Z2129
Z2130
C760 1000PF(0402)
Z2131
Z2132 C765 1000PF(0402)
V_REFOUT
Z2133 C773 10U(0805)/6.3V
AUD_AGND
V_REFOUT 31
Z2126 LINE_OUT_R
R499 *0(0402)
LINE_OUT_R 31
Z2127 LINE_OUT_L
R508 *0(0402)
LINE_OUT_L 31
Z2153 1/6
T
Z2154
T
1/6
R225 0(0402)
R224 0(0402)
INT_CD_R 16
R268 1.5K(0402) CLOSED TO U53 AMP APA4835
MIC1
MIC1 31 +5VS
PQ69
4800
1.5K(0402)
R258 C391 8
INT_CD_L 16
.1u(0402) 7
C814 C815 6
AUD_AGND 5
R257 4.7U(0805) .1u(0402)
1.5K(0402)
AUD_AGND
+12V
R265 1.5K(0402)
+5VH8
CD_GND 16
R558
1M
R559 Z2173
100K
Q27
Z2174
G 2N7002
Q28
G 2N7002
4,11,12,13,31 ICHPWROK
C805
4.7U(0805)
AUD_AGND2
fo=1 /2*3.14*51K*300PF = 10.4KHZ
31 HP-SENSE
AV = R528/R274=1.55
R528 51K R551
AUD_AGND2
C415 .01u
LINE_OUT_R Z2165
1/6 CLOSED TO U46 C808 1u
LINE_OUT_L Z2166
C809 1u
RN9
*8P4RX0
FRONT
L7 JSPK2
SPKL1 7 2 LO- 1
1
SPKL2 8 1 LO+ + 2
SPKR1 2
6 3 RO+ + 3
3
SPKR2 5 4 RO- 4
4
PLW3216S_S8 ACES/CON4
CP1
8P4C_180P
CLOSED TO JSPK2
R532 51K
C413 .01u
1/6
R538 +5VS
4.7K(0402)
U51
Z2155 1 5 C782 .1u(0402)
IN VCC
SPDIFO 2
IN
C769 C375 C357
SPDIFGND 3 4
SPDIF
GND OUT
.1u(0402) .1u(0402) .1u(0402)
TC7S32F
AUD_AGND
L79
1 2 C372 *.1u C363 *.1u C419 *.1u
L_1206
AUD_AGND AUD_AGND AUD_AGND
REMOVE M/E POSITION
C364 *.1u C420 *.1u
AUD_AGND AUD_AGND
CLOSED TO U60 AMP APA4835
+5VS AVDDA
PQ66
4800
8
AVDDA2
7 3
C780 C775 6 2
5 1
3 4.7U(0805) .1u(0402) 4 C771 C777
2
1 .1u(0402) 4.7U(0805)
4 C816 C817
+12V
.1u(0402) 4.7U(0805)
+5VH8
AVDDA
R512
1M
R518 Z2149 LINE_OUT_R/L
100K
Q22
Z2148
G 2N7002 C752
Q23 4.7U(0805)
C818 G 2N7002
4,11,12,13,31 ICHPWROK
4.7U(0805)
1/7
Z2136 R549 51K
AVDDA2
C804 .01u
R550
33K
C806 C807
.1u(0402) .1u(0402)
AUD_AGND2 AUD_AGND2
21
HP_SENSE
100K(0402) Z2147 5 17 Z2169
MUTE LEFT_OUT-
4
AUD_AGND2 MODE
2 RN8
SHUTDOWN
R553 20K 15 Z2170 1 8 PLO- PRO+
LEFT_OUT+
R552 20K Z2160 13 2 7 PLO+ PRO-
LEFT_DOCK
Z2161 PLO-
12 3 6 PRO+
LEFT_IN
28 Z2171 4 5 PRO- PLO+
RIGHT_OUT+
11
AUD_AGND2 BEEP
8P4RX0
R554 20K Z2162 10 26 Z2172
RIGHT_IN RIGHT_OUT-
Z2163 9
RIGHT_DOCK
R555 20K CLOSED TO U53
Z2164 22
BYPASS
C810
4.7U(0805) U53
L101
LM4835 TSSOP28 1 2
Z2167 L_1206
AUD_AGND2
AUD_AGND2
1/7 R556
AUD_AGND2
33K
Z2168 R557 51K
C811 .01u
Schematic Diagrams
31
AUD_AGND
Sheet 20 of 36
Audio Codec
ALC202
PANEL
JSPK1
L6 L_0603(129) PR1+ + 1
1
L5 L_0603(129) PR1- 2
2
PL1-
L4 L_0603(129) 3
3
L3 L_0603(129) PL1+ + 4
4
C31 C32 C29 C30 ACES/CON4
CLOSED TO JSPK1 180PF 180PF 180PF 180PF
Audio Codec ALC202 B - 21