MiTAC 7521 N - Audio Failure

111
7521
7521
N/B MAINTENANCE
N/B MAINTENANCE
ASDOUT
ASYNC
7.10 AUDIO FAILURE
No sound from speaker after audio driver is installed.
EXT MIC.
U5
CS4299
J512
CDROM_R
CDROM_L
C65
C76
R35
R61
R40
CDROM_RIGHT
CDROM_ LEFT
U22
SIS
630
ASDIN0
ABITCLK
ARST#
C78
L19
J509
INTERNAL MIC1
L17
L502
L516
AUDIO IN
+
R111
R60
C62
R44
R43
C68
CDROM_COMM
C66
R56
CDROM_GND
CDROM CONNECTOR
C64
L28
VA
21
20
18
19
11
5
8
10
6
R29
+12V
U4
ADP3301AR-5
C381
D4
+
+
+
C51
C48
R73
0
J503
L501
R505
LINE_IN/L
R501
LINE_IN/R
R506R502
C59
C58
23
24
LINE IN
R47
0
J4
L535
L536
L62
R81
R207 L63
29
R82
+3V
U31
W83626F
24.576MHZ
CODEC XIN
2