User Guide

8081
8081
N/B Maintenance
N/B Maintenance
122
8.10 Audio Failure – Audio OUT
No sound from speaker after audio driver is installed.
C771
100µ
U15
Amplifier
APA2020A
L534
120Z/100M
+5V
C185
0.1µ
C194
0.1µ
7,18
LVDD/RVDD
P14
AGND
R1
LINE OUT
22
15
ROUT+
ROUT-
J3
1
2
L1
600Z/100M
L2
600Z/100M
L1
600Z/100M
R
3
10
LOUT+
LOUT-
J1
1
2
L2
600Z/100M
L
Internal Speaker Connector
AMP_SHUTDOWN
SPK_OFF
ROUT+
46
44
J4 J4
28
26
Transfer Board
P23
C188
4.7µ
C183
0.1µ
R188
10K
R185
10K
R186
33K
R187
15K
AOUT_R
21
20
RLINE IN
RHP IN
C190
4.7µ
RHP_IN
RLINE_IN
C191
4.7µ
R201
10K
R199
10K
R192
33K
R200
15K
AOUT_L
4
5
LLINE IN
LHP IN
C192
4.7µ
LLINE_IN
LHP_IN
C195
0.1µ
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CAGND
LOUT+
L542
120Z/100M
11
MUTE IN
R774
1K
C787
100P
R767
1K
C776
100P
C774
100µ
R768
22
C769
100µ
R775
22
L540
600Z/100M
L539
600Z/100M
1
2
6
3
4
5
SE/BTL#
HP/LINE#
14
16
LINE_IN#
C186
0.1µ
C782
0.1µ
R772
100K
R766
100K
+5V
R747
100K
+5V +3V
R509
0
R510
0
L545
0
CAGND AGND
AGND
J9
P3
+VA