mitac 8599.pdf - tim.id.au
mitac 8599.pdf - tim.id.au
mitac 8599.pdf - tim.id.au
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8.14 Audio Failure (1)<br />
Audio Drive Failure<br />
1. Check if speaker cables are connected<br />
properly.<br />
2. Make sure all the drivers are installed<br />
properly.<br />
Test<br />
OK?<br />
1. Try another known good speaker,<br />
CD-ROM.<br />
2. Exchange another known good<br />
Audio/touch pad/card Read board.<br />
Re-test<br />
OK?<br />
Yes<br />
Yes<br />
Correct it.<br />
Correct it.<br />
8599 N/B Maintenance<br />
No sound from speaker after <strong>au</strong>dio driver is installed.<br />
No<br />
No<br />
Replace<br />
Motherboard<br />
Check the following parts for cold solder or one of the following parts on the<br />
motherboard may be defective,use an oscilloscope to check the following signal<br />
or replace parts one at a <strong>tim</strong>e and test after each replacement.<br />
1. If no sound c<strong>au</strong>se of line out,<br />
check the following parts &<br />
signals:<br />
U11<br />
U20<br />
U10<br />
J8<br />
J14<br />
Q20<br />
D23<br />
L26<br />
L27<br />
L29<br />
L31<br />
Parts:<br />
R147<br />
R150<br />
R191<br />
R188<br />
JO3<br />
L45<br />
L49<br />
L41<br />
R152<br />
R196<br />
AOUT_R<br />
AOUT_L<br />
ROUT+<br />
ROUT-<br />
LOUT+<br />
LOUT-<br />
LINE_OUT_L<br />
LINE_OUT_R<br />
SPK_OFF<br />
Board-level<br />
Troubleshooting<br />
2. If no sound c<strong>au</strong>se<br />
of MIC, check<br />
the following<br />
parts & signals:<br />
3. If no sound c<strong>au</strong>se of<br />
CD-ROM, check the<br />
following parts & signals:<br />
Signals: Parts: Signals: Parts: Signals:<br />
U11<br />
J11<br />
MIC501<br />
R160<br />
R204<br />
L39<br />
L62<br />
R100<br />
C111<br />
C112<br />
AVDDAD<br />
MIC1<br />
MIC2<br />
U11<br />
J21<br />
R141<br />
R138<br />
JL12<br />
C121<br />
C119<br />
CDROM_RIGHT<br />
CDROM_LEFT<br />
CDROM_COMM<br />
127
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