Audio Driver Failure - Prestigio CAVALIERE 141 Technical & Service Manual

Prestigio Cavaliere 141
8.13 Audio Failure
Symptom:
No sound from speaker after audio driver is installed.
Input Of Audio Subsystem
P
16
AC97_RESET#
AC97_SDOUT
U516
AC97_SDIN0
South-
AC97_SYINC
Bridge
AC97_BITCLK
SiS961
C273
0.1U
SPEAK
R213
10K
P
22
U515
62
CARDSPK#
CB1410
C274
R219
0.1U
10K
+3V
C794 C792 C793
4.7U 0.1U 0.1U
9
1
P
20
R181 22
11
R706 22
5
R215 22
8
R193 22
10
R214 22
6
AC'97
CODEC
VA
PC_BEEP
ALC202
12
C791
P
20
0.1U
2
5
U21
3
4
NC7S32
1
R227
10K
R221
C285
2K
0.1U
VA
L543
120Z/100M
C816 C813
C812
0.1U 0.1U
10U
25,38
C814
1U
MIC
21
U522
CDROM_L
18
C806 0.22U
CDROM_R
20 C811 0.22U
CDROM_GND
19 C805
MONO_OUT
C823 0.1U
37
C283
0.1U
LINE_IN/L
23
C286
24
LINE_IN/R 0.1U
C270
100P
125
Technical Service Manual
+5V
R727
L541 600Z/100M
0
L542 600Z/100M
L34 600Z/100M
L37 600Z/100M
R725
10K
R731
10K
R729
10K
R728 R733
33K 33K
0.22U
L33
600Z/100M
R211 6.8K
L36
600Z/100M
R226 6.8K
L35
C281 R212 R220
120Z/100M
100P 6.8K 6.8K
MIC1
1
+
P
20
2
-
J515
Extend MIC
4
P
20
2
1
J512
CDROM
Connector
CDROM_LEFT
1
P
CDROM_RIGHT 18
2
CD_COMM
3
J7
MDC
P
19
1
1
2
3
4
5
J513
P
20
Line in